Date   

Re: D-96L First Impressions

mediumwavedx
 

Exactly my feeling too.

I won't be diving into the DSP arena any time soon due to this kind of stuff.

Bill

--- In ultralightdx@yahoogroups.com, "m_a_schuster" <schuster@...> wrote:

This is getting to be disappointing. Are unwanted audio volume anomalies going to be the bane of a whole new generation of DSP-based radios? I hope not. It means death for anyone wanting to go barefoot. Perhaps someone can figure out a way to externally jumper the DSP and disable the mute function altogether...



--- In ultralightdx@yahoogroups.com, satya@ wrote:

Aha! I think you nailed the audio pumping cause. Based on your insight
that individual loud syllables are overly loud, this indicates that the
audio pumping is because the SNR momentarily rises above the soft-mute
threshold on these syllables, and the 16 db mute is released for a
split-second. (This makes MUCH more sense that my previous belief that the
signal itself as a whole rose above the SNR threshold - such rapid
fluctuations are unlikely.) Using a passive loop, which can bring all
syllables above the mute threshold, fixes this. Using an audio compressor
like the dbx 118 also smooths things out. I (and I believe several
others) hear this pumping on the PL-300WT/G8 as well - maybe yours is
unique in that the soft-mute is disabled? If so, it is a valuable little
receiver...


Re: D-96L First Impressions

m_a_schuster
 

This is getting to be disappointing. Are unwanted audio volume anomalies going to be the bane of a whole new generation of DSP-based radios? I hope not. It means death for anyone wanting to go barefoot. Perhaps someone can figure out a way to externally jumper the DSP and disable the mute function altogether...

--- In ultralightdx@yahoogroups.com, satya@... wrote:

Aha! I think you nailed the audio pumping cause. Based on your insight
that individual loud syllables are overly loud, this indicates that the
audio pumping is because the SNR momentarily rises above the soft-mute
threshold on these syllables, and the 16 db mute is released for a
split-second. (This makes MUCH more sense that my previous belief that the
signal itself as a whole rose above the SNR threshold - such rapid
fluctuations are unlikely.) Using a passive loop, which can bring all
syllables above the mute threshold, fixes this. Using an audio compressor
like the dbx 118 also smooths things out. I (and I believe several
others) hear this pumping on the PL-300WT/G8 as well - maybe yours is
unique in that the soft-mute is disabled? If so, it is a valuable little
receiver...


Taking DT-400W back, probably will also return G8. Suggestions for alt. unit?

pianoplayer88key
 

Ok, I'm planning to take the DT-400W back today. While there are some things I like about it (sensitivity, immunity to internally-generated noise, good audio quality, very good weather band reception, vertical orientation), there are some things I don't exactly like as much (poor selectivity on AM and FM compared to Grundig G8), and at least one deal breaker (very slow tuning from mid dial to ends - you have to use up/down pushbutton, and can't call up a preset and tune from there).

Also, unless I can figure out a way to take the DSP chip out of the G8 and build my own radio around it, I will probably return that in the next few days. Sure, I like the tuning navigation, signal strength meter, 1 kHz tuning increments, fantastic selectivity on MW and FM, but don't care as much for poor audio bandwidth on MW and the fact that MW leaks into SW and impairs reception on that band. Deal breakers for the G8 are the excessive internally-generated noise and the soft mute.


So, I guess that brings me back to square 1.5 - I'm still looking for my next radio. Some things I'm looking for include (in no particular order):
* FM selectivity at least as good as G8, sensitivity as good as G8, while using supplied earphones (prefer no whip antenna as this radio will be used mostly in my pants pocket)
* vertical orientation (radio to be mostly used in my pocket)
* immunity to internally-generated noise - at least as good as DT-400W
* selectivity slope factor at least equal to DSP chip in G8
* selectable AM bandwidths would be really nice (one thing, though... I'm not sure if the 6kHz BW on the DSP chip is a wide enough "wide" BW. I have heard recordings of AM stations that had full 10kHz audio, and it actually sounds quite nice - you can easily hear details in cymbals, etc, for example. (I can hear up to 16kHz, but AFAIK AM in the USA is only allowed to broadcast up to a 10kHz audio bandwidth (from the carrier).) I have some recordings made off an AM Stereo station using my SRF-42 (which currently is non-functional, and that station (1110 KDIS) is now running IBOC, and while that SRF-42 wasn't quite getting a full nearly-flat 10kHz response, its audio BW is easily 3-4x the BW of the G8, and quite likely double the BW of the DT-400W.)
* AM sensitivity as good as can be had in the size radio I would be getting. (must be smaller (especially thinner) than what it's replacing (Panasonic RQ-SW20 (98mm W, 120mm H, 45mm D) - fact that the SW20 has a cassette player, and I don't require one, should help make it smaller)
* at least one of: rotating tuning dial like G8, direct pushbutton presets, direct frequency entry keypad
* signal strength meters like G8
* DSP, unless there's a non-DSP radio out there with performance at least as good as one with a DSP chip in the same price range

Included in the category of things that would be nice but aren't required are LW+SW coverage, SSB, Sync Detection, among other things. Note, though: If it's going to have LW+SW coverage, I want it to be at least as good in sensitivity, selectivity, immunity to overload, etc, as the DSP chip is on MW and FM, and have continuous MW coverage from 150-519kHz and continuous SW coverage from 1.711-30MHz, otherwise I would prefer not to have those bands at all. Also, weatherband isn't required, but if it has it, I want it to be as good as possible - minimum at least as good as the Sangean DT-400W. Also, if the FM selectivity isn't at least as good as the G8, I would prefer not to have FM at all. However, since most radios have FM, an alternative requirement would be to have the AM (in addition to having the selectivity curve and overload immunity of the DSP chip and internal noise immunity of the DT-400W) be as sensitive in the stock configuration as the Sangean DT-400W or Sony SRF-M37W with filter mod is with the aid of the Select-A-Tenna.

I do NOT want a soft mute function like the G8 has. Another post referenced "pumping" audio - I am constantly getting this on weak signals on my G8, and considering the vast majority of its use will be barefoot, it is a deal breaker for that radio. (I just looked, and it's referenced in message #4575 - I get that same effect in the G8 on semi-weak signals, and especially at night when AM signals fade in and out, or I get co-channel interference (when it is especially bad, like on 1580, which has KMIK Tempe, AZ, and KBLA Santa Monica, CA, both quite audible (both being 50kW).)

I hope to spend not more than $50-60.

I did note above that I want a vertically-oriented radio. However, I would be willing to consider a horizontally-oriented one IF it either has an integrated belt clip, or I can get a case for it with a belt clip with which I can access all buttons and functions without taking it out of the case or opening the case. The requirements of being immune to internally-generated noise, not having a weak signal soft-mute, etc, would continue to apply.

I can't seem to find any info on the Tecsun PL-330. Does anyone know anything about it? From a picture I've seen, it looks like the form factor I want, and from the dimensions I was able to figure out from http://bbs.tecsun.com.cn/0002.asp?open=110900 (btw if anyone has an English translation of that entire link, not just the one pic with the PL330, I'd love to see it), it's probably within my size limit for a radio, although at the upper end of that limit. Also I can't tell if it has selectable bandwidths or not.

Also, in the category of not required, but would be really nice and would help me save ~$40-60 on another unit, would be a clock/alarm function. If it does have that, in order to make it not necessary for me to buy a separate clock radio (which I would want to be at least as sensitive on AM as a good radio with a 7-8" ferrite bar, as resistant to overload as the G8, and as selective as (guessing, as I've never tested one in this configuration myself, but for this the G8's 3kHz BW is too narrow) the DSP chip on the 4kHz or 6kHz setting), it would need to have multiple alarms, the ability to set the volume and tuner/ringtone for each alarm independently, capability of sounding the alarm/radio around 105dB, ability to have multiple alarms sounding simultaneously (but not going so far as to require the ability to tune to two stations simultaneously - I might have a radio start sounding at 7am and a buzzer add on at 7:20am for example), etc. (I do have a T-Mobile G1 cell phone, but I can't select custom ringtones for the alarms (unless there's an app I'm not aware of), it doesn't have a built-in radio, and the alarm at max volume is at least several dozen dB too quiet (not to mention it probably doesn't help that some music I might use for an alarm ringtone has not been dynamically compressed/normalized at all.))

Should I get a DSP chip and build a radio around it, mod my G8 (find a way to cure the MW on SW overload issue, dump the soft mute, put the radio in a different case, cure the internally-generated noise issue), or is there something out there that I can get? (If I'm going to return my G8, I believe I have a week or so to do it.) BTW, if I do a G8 hack, or other mod, everything would need to be able to be contained within a package small enough to meet ULR specifications, or possibly a little larger. (For example, requiring the ULR to be connected to a PC, like someone mentioned for a possible G8 mod, would be a deal breaker. Considering the vast majority of its use would be portable, in my pocket, on the go, etc, having a 6-foot loopstick antenna or air-core loop antenna wouldn't be good enough to compensate for the lack of pocketability.)

Speaking of selectivity and sensitivity, I came up with a list of some stations I would like to be able to receive on the stock unit, with some approximate signal strength preditions (on a 1-5 scale), and a few comments regarding adjacent- and co-channel interference. Listening QTH would be within 1/2 mile of 32°45'40"N 116°56'50"W

Definitions of signal grades (1-5 scale):
1 = mumbling semi-indecipherable audio or carrier trace only
2 = quite weak, but easily 100% copyable
3 = fair signal, usually trips seek, etc, some moderate static
4 = fairly strong signal, very little static audible only during breaks in talk programming, music completely masks static
5 = local/city grade, no static at all - basically CD-like dynamic range (turn off radio during talk break & hear no difference in sound)

Some stations may have a +/-1 margin error on estimated signal ratings. For example, some S=1 stations may be unreceivable at all even without interference from other stations, or may be S=2, and there may be a few not listed that would be detectable barefoot. Most S=5s though should be solid S=5s.

S=1 530 (TIS) LAX Airport
S=4 540 XESURF Tijuana, BCN
S=1 560 KBLU Yuma, AZ (570's IBOC may render it undetectable though)
S=3 570 KLAC Los Angeles, CA
S=1 590 KTIE San Bernardino, CA (probably overpowered by 600's IBOC though)
S=5 600 KOGO San Diego, CA
S=5 620 XESS Puerto Nuevo, BCN
S=4 640 KFI Los Angeles, CA
S=3 670 KIRN Simi Valley, CA
S=5 690 XEWW Rosarito, BCN
S=3 710 KSPN Los Angeles, CA
S=2 730 XEEBC Ensenada, BCN (would need to null 740's IBOC though and/or use narrow BW)
S=4 740 KBRT Avalon, CA
S=5 760 KFMB San Diego, CA
S=3 790 KABC Los Angeles, CA (would probably have an S=1 to almost S=2 XESU in background, would need to null 800 or use narrow BW)
S=5 800 XESPN Tijuana, BCN
S=2 820 XEVMS Mexicali, BCN
S=3 830 KLAA Orange, CA
S=1 850 XEZF Mexicali, BCN (would need to null 860 or use narrow BW)
S=5 860 XEMO Tijuana, BCN
S=2 870 KRLA Glendale, CA (would need to null 860 or use narrow BW)
S=2 890 KPB792 Cabrillo National Monument, CA
S=5 910 KECR El Cajon, CA
S=1 920 XESDA Ensenada, BCN (probably only audible on 1 or maybe 2kHz BW mode)
S=2 930 KHJ Los Angeles, CA
S=1 940 XEWV Mexicali (would need to null 950 and/or use narrow BW)
S=4 950 XEGM Rosarito, BCN
S=2 970 KNWZ Coachella, CA
S=2 980 KFWB Los Angeles, CA
S=2 990 KTMS Santa Barbara, CA
S=2 990 XECL Mexicali, BCN (2 listed for same frequency due to them being close to same signal strength at my location)
S=4 1000 KCEO Vista, CA
S=2 1020 KTNQ Los Angeles, CA
S=5 1030 XESDD Puerto Nuevo, BCN
S=5 1040 KURS San Diego, CA (ok explain something. Normally distant-separated stations are allowed 10kHz separation, while closely-spaced stations are supposed to need at least 30-40kHz. 1030 and 1040 happen to be close geographically and close on the dial. Why is it that I hardly hear any splatter from 1040 while listening to 1030 and vice versa, but while I may be within the coverage area, I can't get any signal from 1140 KNWQ out from under 1130 KSDO?)
S=2 1050 XED Mexicali, CA (would need to null 1040 and/or use narrow BW)
S=4 1070 KNX Los Angeles, CA
S=4 1090 XEPRS Rosarito, BCN
S=2 1110 KDIS Pasadena, CA
S=5 1130 KSDO San Diego, CA
S=1 1140 KNWQ Palm Springs, CA (possibly QRM'd by 1130 even in 1kHz BW mode though)
S=1 1150 KTLK Los Angeles, CA (probably only audible in 3kHz or narrow BW mode, otherwise QRM'd by 1130 and 1170)
S=5 1170 KCBQ San Diego, CA
S=2 1190 KXMX Anaheim, CA
S=5 1210 KPRZ San Marcos-Poway, CA
S=1 1230 KXO El Centro, CA (probably only audible in 1 or 2kHz BW mode)
S=5 1240 KNSN San Diego, CA
S=2 1250 KZER Santa Barbara, CA (would need to null 1240)
S=1 1260 KGIL San Fernando, CA (would need to null 1270)
S=5 1270 XEAZ Tijuana, BCN
S=3 1280 KFRN Long Beach, CA (would need to null 1270)
S=2 1290 KZSB Santa Barbara, CA (may have an S=1 KKDD San Bernardino, CA, in the background
S=1 1300 KROP Brawley, CA (would need to null 1310 and/or use narrow BW)
S=5 1310 XEC Tijuana, BCN
S=2 1320 KKSM Oceanside, CA (would need to null 1310 and/or use narrow BW)
S=1 1330 KWKW Los Angeles, CA
S=2 1340 KCLU Santa Barbara, CA
S=5 1360 KLSD San Diego, CA
S=1 1370 KWRM Corona, CA (would need to null 1360 and/or use narrow BW)
S=4 1390 XEKT Tecate, BCN
S=5 1420 XEXX Tijuana, BCN
S=1 1430 KWST El Centro, CA (would need to null 1420 and/or use narrow BW)
S=3 1450 KFSD Escondido, CA
S=5 1470 XERCN Tijuana, BCN
S=1 1480 KVNR Santa Ana, CA (would need to use narrow BW probably)
S=2 1490 KIST Santa Barbara, CA
S=1 1510 KSPA Ontario, CA
S=2 1520 KVTA Port Hueneme, CA
S=1 1540 KMPC Los Angeles, CA (may need to null 1550 or use narrow BW)
S=4 1550 XEBG Tijuana, BCN
S=2 1580 KBLA Santa Monica, CA
S=1 1590 KUNX Ventura, CA
S=2 1620 (TIS/HAR) San Ysidro, CA (would need to use somewhat narrow BW)
S=4 1630 XEUT Tijuana, BCN
S=1 1650 KFOX Torrance, CA
S=1 1670 KHPY Moreno Valley, CA
S=5 1700 XEPE Tecate, BCN

The above bandscan is based on performance I've gotten with a few other radios I have tried. I posted the definitions of the signal strength levels above, basically ranging from S1 being not much more than carrier only to S5 having fully-blanked noise, not factoring in adjacent-channel interference (except where noted)


Should I possibly go back and re-buy the Sangean DT-210 and do the filter mod? If so, is there an antenna mod I can do that will improve the sensitivity without increasing the size of the package? The DT-210 will let you tune up/down manually from presets, unlike the DT-400W, which is one reason, along with its vertical orientation, small size, immunity (if I remember correctly) to LCD noise, I'm reconsidering that model. However, if the immunity to overload isn't at least as good as the G8 (to be tested by taking it and the Select-A-Tenna to a local 50kW blowtorch's transmitter site and testing it there), I may have second thoughts.

Slight OT. This recent talk of Cuba's Radio Reloj has me interested a little bit. What frequency(ies) would be best for me to try listening to RR barefoot from my location near San Diego, CA?
Also, in the event I'm lucky enough to find a radio with absolutely spectacular sensitivity and selectivity, is there any QRP TA/TP station whose groundwave I could DX from within 1/4km of a southern California 50kW IBOC blowtorch, and within a few hundred kHz of it? (For example, DX a QRP TP/TA on 1071 while next to KNX's tower or on 639 while next to KFI's tower) Being realistic, though, considering the small size of a radio I'm looking for, I'm not going to expect performance quite that good. :D


--- In ultralightdx@yahoogroups.com, keith beesley <keith1226@...> wrote:

As Jay Allen and others have pointed out, there is no one radio that is perfect for all tastes and situations. That said, here are a few that I have enjoyed over the past few years and my impressions of them:

1. The Sangean family of PLL pocket radios. These are great for listening through headphones to music or talk on MW and FM, and for some MW Dxing. I have not yet tried the latest-and-greatest one, the DT400W. (Sangean also makes good full-size portables; the PR-D5 is a current DXers' favorite. Their shortwave radios are good on MW and FM but usually need external antennae to hear anything on SW).

2. Sony S10MK22. Not a true DXers radio, but a lot of fun to play with. Remarkable reception and speaker audio for its size and price (about US$10!). I have two samples; one is better on MW, the other on FM. No X-Band coverage on MW.

3. Panasonic RF-P50. Similar in size and performance to the S10MK2, analog tuning, full coverage to 1710 kHz.. Maybe slightly worse MW sensitivity and slightly better speaker audio (compared with the s10). A bit hard to find.

3. Sony SRF-59 and SRF-49. The 49 has the same performance as the 59, but in a black cabinet. I never found one of the clear "prison" models (SRF-39FP?) and apparently they're no longer available. I call these my "pocket Superadios" (see elsewhere for info on the GE Superadio).

4. Eton E100. My sample is about 5 or 6 years old. I understand improvements have been made since then. Great Fm, good shortwave, mediocre MW on mine. Nice FM stereo w. headphones.

5. Grundig G8 Digital Traveler II.

6. Tecsun R911. Excellent MW and SW (for an ultralight), mediocre FM with bleed-though of strong FM locals at various places on the dial.

7. Tecsun DR-920. Analog tuning, digital readout, like a small S350. Good to excellent on all bands. Has clock/timer.

8. Grundig G6 Aviator-good to excellent on all bands except for useless VHF air band. Like a scaled-down E5/G5-DE 1103 with slightly reduced performance.

I'll add more as I think of them.

73s,
Keith B.
*snip*


Degen DE1125 Photos

texnote
 


Re: D-96L First Impressions.... charging

mr.decker
 

I have discovered with mine that if I turn it off while on a frequency that fits in the 9khz spacing scheme, it will remain on frequency when powered back on. I can turn it off when on 1080, and it will always be on 1080 when powered back on. I tried it again when tuned to 1089 (and a few other frequencies that were multiples of 9 away from 1080), and it also kept its tuning when powered back on. The filter also sounds like it is always on the setting 6 when I turn the radio back on, even if it isn't set to the 6 setting. I can change the bandwidth and it resets to the bandwidth settings indicated on the display, with 2 being the widest bandwidth and 1 being the narrowest. If I turn it off with the bandwidth set to 6, the radio sounds the same when powered back on.

Mine also has the audio pumping effect, but using it with my ferrite loop clears it right up.

Brian

--- In ultralightdx@yahoogroups.com, satya@... wrote:

Yes, it seems to run just fine on 110 vac, and it's got the right plug
configuration. I let it run for several hours and it was fine.

Kevin



Does this mean you are using the supplied 220v charger in a 110 outlet?
K

-----Original Message-----
From: ultralightdx@yahoogroups.com [mailto:ultralightdx@yahoogroups.com]On
Behalf Of satya@...
Sent: August 21, 2009 11:58 AM
To: ultralightdx@yahoogroups.com
Subject: Re: [ultralightdx] D-96L First Impressions


…….
On the battery issue, the supplied charger typically will not get you that
last bar on the battery meter. I have an old Radio Shack variable voltage
charger, whose 4.5 volt setting comes out to 5.3 vdc unloaded. This
little extra oomph gets me the last battery bar. However, I charge the
battery for a while on the supplied charger first to get the voltage up,
so I don't put too much current into the battery using the Radio Shack
charger.

Mine also typically defaults back to 520 khz when turned back on.

Overall, I like the G8 for cruising around the domestic band, but the 1
khz filter on the D96L is necessary for frequencies next to strong locals
and for trans-oceanic splits.

Kevin S
Bainbridge Island, WA




Re: Grundig G6 Aviator Impression

chuck_rippel <Chuck.Rippel@...>
 

Yep, it has SSB, had to look for the function. All in a footprint about the size of a pack of cigarettes. The G6 just buries the G8 when it comes to nulling and audio recovery.

Whats overseas DX? :-) Been so long that any made it here....

WRT DX'ing from sea... The steel hulls would ruin any nulling effects. Am hoping to back to the Carribbean after Oct 1. We were on an island that had a population of about 200. There were areas 10 miles away from the end of the power lines on the east side of the Island that would be great.

Turned in a couple loggings from Turks and Caicos after the helo dropped us off and we were waiting for our commercial flight home.


Best
Chuck

--- In ultralightdx@yahoogroups.com, "John H. Bryant" <bjohnorcas@...> wrote:

Chuck,

Thanks for your note during your trip to Universal Radio... sorry
that I wasn't there.

From what I've heard, the G6 is a really fine radio. You ought to
have a lot of fun with it. If I remember correctly, the G6 has SSB
capabilities. If that is the case, I believe that it is the radio
that the Definitions Committee ruled out of bounds as an "enthusiast"
grade rather than an "entertainment grade" radio. While SSB would be
of some (marginal?) help dodging IBOC noise for domestic DXers, SSB
is a HUGE advantage, as I'm sure you know, when going after the overseas DX.

Just like QRP, the definition of "Ultralight" is an artificial one,
but necessary for giving out awards and keeping Records and Firsts,
so the Committee focused on "entertainment grade" as a defining
concept. As far as I know, there are few, if any, entertainment
broadcasts in SSB mode.

Say, do you ever get out to sea? (Among other things, Chuck is an
officer in the US Coast Guard.) With you and Nick Hall-Patch
deploying on seaborne scientific trips, and Rob Ross and others going
on Cruise junkets, maybe we ought to found an awards section for
"Ultralighting Afloat!"

John Bryant
Orcas Island, WA, USA
Winradio G313e and various Ultralights
Wellbrook Phased Array + Superloops



At 03:30 AM 8/21/2009 +0000, you wrote:


Grabbed a G6 along with a G8 during my last trip to Universal and am
pleasently suprised with the performance of the G6 Avaitor, "Buzz
Aldrin" edition.

Nulls well although I am using it tonight with a very small loop,
have snagged 3 stations on 600 in about an hour. Actually, my
initial reaction is that it hears better than the physically larger
G8. Have not heard any overload, spurs or "chugging" when changing
frequency. The red backlit display complete with strength meter is
kind to the eyes.

More later..

Chuck Rippel


Re: OT-Tornado Hit My Neighborhood

Carl DeWhitt
 

--- Kirk:
I,m sorry to hear about the twister striking your neighborhood.But i,m glad to hear everyone is ok.I was in some friends house over in Tonkawa years ago when i was going to Northern Oklahoma College and a tornado passed overhead .It thankfully did not touch down.It did tear up some trees.Take care and i hope your neighborhood recovers quick.I hope to hear you are back active in ULR dx soon.
Carl DeWhitt
Maryville ,Tn.
In ultralightdx@yahoogroups.com, "toptyp19" <toptyp19@...> wrote:



Hey Kirk-
Happy to hear everyone is OK. My daughter just bought a new
home in Plainfield, Il which is tornado alley up here. I keep
kidding her that there are no "old" homes in Plainfield! Seriously,
always relieved when there are no injuries incurred with twisters.
They sometimes are not perceived as being as potent as they really
are.
73, Joe.


--- In ultralightdx@yahoogroups.com, "kirk74601" <kirk74601@> wrote:

Greetings to all,

I just wanted to jump in here and let you know that we took a direct hit from a tornado around midnight Wednesday morning. The important thing is that, miraculously, nobody to my knowledge was injured severely or killed. The F1 double vortices tornado took out a few houses in the area, roofs were ripped off, trees stripped and blown down, etc. The National Weather Service based in Norman, Oklahoma dropped the ball on this one; we had no warning at all. I heard the tornado approaching and dove into my interior closet. In all the excitement, my Eton-E-100 was injured a little, but it won't take much to get it back up and running...when I can get to it. I still have a roof overhead thankfully. For some of us there is a semblance of normality here, but I do point out the word "semblance".
73's!

Kirk Allen
Ponca City, OK


Friday August 21st ULR TP Loggings - Yachats, OR

Guy Atkins
 

First of all, I noticed I had a mistake in the subject line of my report for yesterday. It should have read "Thursday August 20th ULR TP Loggings...", not the 18th. Sorry for the goof.
 
This morning returned to mostly very good signal levels, at least briefly for most frequencies with audio. DUs and TPs both were heard:
 
----------------------
 
594 JAPAN JOAK Tokyo, strong with flute and piano music, then JJ talk at 1234.
 
738 AUSTRALIA 2NR Grafton, man and woman talking in Aussie accented English; one of the few signals this morning at a poor level. Heard at 1242, and only on Gary's hotrodded E100. The D96L could only produce a strong het.
 
747 JAPAN JOIB Sapporo, JJ talk at 1245, parallel 774. Very good level.
 
774 JAPAN JOUB Akita, English lessons by Japanese man and woman, parallel 747, and also at a very good signal level.
 
792 AUSTRALIA 4RN Brisbane, man and woman with English talk; seemed to be discussing Aussie country music. Good level at 1253.
 
828 JAPAN JOBB Osaka. Very good signal of Japanese talk with English lessons, parallel 747 and 774 at 1255.
 
963 NEW ZEALAND Southern Star, Christchurch, tentative with Kiwi or Aussie accented talk by man; poor to fair.
 
972 SOUTH KOREA HLCA, Korean talk by man and woman at 1310. Good level.
 
1053 KOREAS - North Korean jammer heard mixing with South Korea's Voice of National Salvation at equal levels. Poor to fair, with the VONS station coming out on top at 1312 with male and female KK talk.
 
1134 JAPAN JOQR Tokyo heard at 1314 with excited announcer (sports?) in Japanese, at very good to EXCELLENT level, peaking at 1316 just past max dawn.
 
1143 UNIDENTIFIED - Possibly Taiwan Fisheries Broadcasting Station here, with poor to fair signal of Chinese language by man and a woman, plus orchestral music.
 
1206 CHINA - presumed Yanbian RGD the one here with Korean talk, per PAL schedule. Good signal at 1315 but ravaged by splatter on both ULRs.
 
1287 JAPAN JOHR Sapporo with JJ talk by man at 1320. Very good peak at 1321.
 
1475 MALAYSIA RTM Kota Kinabalu - heard again with Indonesian sounding lang. and pop music typical of Malaysian and Indonesian stations. Male announcer at 1330, but signal level starting to drop to fair and poor by 1332.
 
1566 SOUTH KOREA HLAZ Cheju, with very good to excellent signal at 1326, with JJ talk by man and woman, followed by religious music.
 
1575 THAILAND VOA Ayutthaya, strong again this morning but widely variable from minute to minute around max dawn 1314. Noted first at 1259 with presumed Vietnamese, and then change of language at 1300 per schedule to listed Khmer. Still good signal at 1325. 
 
1593 JAPAN JOQB Niigata? - surprised to hear Japanese language here with an ultralight, but I've heard 10kw Niigata or Matsue on 1593 before with more serious antennas and receivers. English lessons at 1255, parallel 747. By 1258 the signal was mixing with Chinese (presumed CNR1), which was dominating the frequency by 1300.
 
Guy Atkins
Puyallup, WA
DXing from Yachats, OR
 


Re: OT-Tornado Hit My Neighborhood

Joe
 

Hey Kirk-
Happy to hear everyone is OK. My daughter just bought a new
home in Plainfield, Il which is tornado alley up here. I keep
kidding her that there are no "old" homes in Plainfield! Seriously,
always relieved when there are no injuries incurred with twisters.
They sometimes are not perceived as being as potent as they really
are.
73, Joe.

--- In ultralightdx@yahoogroups.com, "kirk74601" <kirk74601@...> wrote:

Greetings to all,

I just wanted to jump in here and let you know that we took a direct hit from a tornado around midnight Wednesday morning. The important thing is that, miraculously, nobody to my knowledge was injured severely or killed. The F1 double vortices tornado took out a few houses in the area, roofs were ripped off, trees stripped and blown down, etc. The National Weather Service based in Norman, Oklahoma dropped the ball on this one; we had no warning at all. I heard the tornado approaching and dove into my interior closet. In all the excitement, my Eton-E-100 was injured a little, but it won't take much to get it back up and running...when I can get to it. I still have a roof overhead thankfully. For some of us there is a semblance of normality here, but I do point out the word "semblance".
73's!

Kirk Allen
Ponca City, OK


Re: OT-Tornado Hit My Neighborhood

satya@...
 

Hey Kirk:

Glad everyone made out safely, and that you still have a roof. We have
earthquakes out here, but tornadoes there seem to come just too darn
often. We'll be thinking of you!

Kevin S
Bainbridge Island, Wa

Greetings to all,

I just wanted to jump in here and let you know that we took a direct hit
from a tornado around midnight Wednesday morning. The important thing is
that, miraculously, nobody to my knowledge was injured severely or killed.
The F1 double vortices tornado took out a few houses in the area, roofs
were ripped off, trees stripped and blown down, etc. The National Weather
Service based in Norman, Oklahoma dropped the ball on this one; we had no
warning at all. I heard the tornado approaching and dove into my interior
closet. In all the excitement, my Eton-E-100 was injured a little, but it
won't take much to get it back up and running...when I can get to it. I
still have a roof overhead thankfully. For some of us there is a semblance
of normality here, but I do point out the word "semblance".
73's!

Kirk Allen
Ponca City, OK


Re: OT-Tornado Hit My Neighborhood

Stephen Ponder <n5wbi@...>
 

Wow! If any thanks can be given, at least there were no injuries
or deaths! Another thing to be thankful for is that it was an F1
and nothing worse, especially since you're up there in "Tornado
Alley!"

Property damage is a bummer for all involved. But it can be
worked through. We're still working on our house from Hurricane
Ike damage!! Injury or loss of life, on the other hand, well ...

Thanks for the note, Kirk. We'll be praying for you and the
rest of the folks in Ponca City!

73,

Steve N5WBI
Houston TX

Greetings to all,

I just wanted to jump in here and let you know that we took a direct hit
from a tornado around midnight Wednesday morning. The important thing is
that, miraculously, nobody to my knowledge was injured severely or killed.
The F1 double vortices tornado took out a few houses in the area, roofs
were ripped off, trees stripped and blown down, etc. The National Weather
Service based in Norman, Oklahoma dropped the ball on this one; we had no
warning at all. I heard the tornado approaching and dove into my interior
closet. In all the excitement, my Eton-E-100 was injured a little, but it
won't take much to get it back up and running...when I can get to it. I
still have a roof overhead thankfully. For some of us there is a semblance
of normality here, but I do point out the word "semblance".
73's!

Kirk Allen
Ponca City, OK


OT-Tornado Hit My Neighborhood

kirk74601 <kirk74601@...>
 

Greetings to all,

I just wanted to jump in here and let you know that we took a direct hit from a tornado around midnight Wednesday morning. The important thing is that, miraculously, nobody to my knowledge was injured severely or killed. The F1 double vortices tornado took out a few houses in the area, roofs were ripped off, trees stripped and blown down, etc. The National Weather Service based in Norman, Oklahoma dropped the ball on this one; we had no warning at all. I heard the tornado approaching and dove into my interior closet. In all the excitement, my Eton-E-100 was injured a little, but it won't take much to get it back up and running...when I can get to it. I still have a roof overhead thankfully. For some of us there is a semblance of normality here, but I do point out the word "semblance".
73's!

Kirk Allen
Ponca City, OK


Re: D-96L First Impressions.... charging

satya@...
 

Yes, it seems to run just fine on 110 vac, and it's got the right plug
configuration. I let it run for several hours and it was fine.

Kevin

Does this mean you are using the supplied 220v charger in a 110 outlet?
K

-----Original Message-----
From: ultralightdx@yahoogroups.com [mailto:ultralightdx@yahoogroups.com]On
Behalf Of satya@sounddsl.com
Sent: August 21, 2009 11:58 AM
To: ultralightdx@yahoogroups.com
Subject: Re: [ultralightdx] D-96L First Impressions


.
On the battery issue, the supplied charger typically will not get you that
last bar on the battery meter. I have an old Radio Shack variable voltage
charger, whose 4.5 volt setting comes out to 5.3 vdc unloaded. This
little extra oomph gets me the last battery bar. However, I charge the
battery for a while on the supplied charger first to get the voltage up,
so I don't put too much current into the battery using the Radio Shack
charger.

Mine also typically defaults back to 520 khz when turned back on.

Overall, I like the G8 for cruising around the domestic band, but the 1
khz filter on the D96L is necessary for frequencies next to strong locals
and for trans-oceanic splits.

Kevin S
Bainbridge Island, WA




Re: D-96L First Impressions.... charging

Keith Rennie <krennie@...>
 

Does this mean you are using the supplied 220v charger in a 110 outlet?
K

-----Original Message-----
From: ultralightdx@yahoogroups.com [mailto:ultralightdx@yahoogroups.com]On
Behalf Of satya@sounddsl.com
Sent: August 21, 2009 11:58 AM
To: ultralightdx@yahoogroups.com
Subject: Re: [ultralightdx] D-96L First Impressions


.
On the battery issue, the supplied charger typically will not get you that
last bar on the battery meter. I have an old Radio Shack variable voltage
charger, whose 4.5 volt setting comes out to 5.3 vdc unloaded. This
little extra oomph gets me the last battery bar. However, I charge the
battery for a while on the supplied charger first to get the voltage up,
so I don't put too much current into the battery using the Radio Shack
charger.

Mine also typically defaults back to 520 khz when turned back on.

Overall, I like the G8 for cruising around the domestic band, but the 1
khz filter on the D96L is necessary for frequencies next to strong locals
and for trans-oceanic splits.

Kevin S
Bainbridge Island, WA


Re: D-96L First Impressions

satya@...
 

Aha! I think you nailed the audio pumping cause. Based on your insight
that individual loud syllables are overly loud, this indicates that the
audio pumping is because the SNR momentarily rises above the soft-mute
threshold on these syllables, and the 16 db mute is released for a
split-second. (This makes MUCH more sense that my previous belief that the
signal itself as a whole rose above the SNR threshold - such rapid
fluctuations are unlikely.) Using a passive loop, which can bring all
syllables above the mute threshold, fixes this. Using an audio compressor
like the dbx 118 also smooths things out. I (and I believe several
others) hear this pumping on the PL-300WT/G8 as well - maybe yours is
unique in that the soft-mute is disabled? If so, it is a valuable little
receiver...

The hissy audio is more pronounced on my set when using the narrower
bandwidths, and I agree that it is likely a result of the audio chip used.
It's even worse on the D92L, which has a much more anemic audio section.

On the battery issue, the supplied charger typically will not get you that
last bar on the battery meter. I have an old Radio Shack variable voltage
charger, whose 4.5 volt setting comes out to 5.3 vdc unloaded. This
little extra oomph gets me the last battery bar. However, I charge the
battery for a while on the supplied charger first to get the voltage up,
so I don't put too much current into the battery using the Radio Shack
charger.

Mine also typically defaults back to 520 khz when turned back on.

Overall, I like the G8 for cruising around the domestic band, but the 1
khz filter on the D96L is necessary for frequencies next to strong locals
and for trans-oceanic splits.

Kevin S
Bainbridge Island, WA

Just some impressions from a Tecsun PL-300wt owner who ordered a
Kchibo D-96L in search of greener pastures. Based on the earliest
disussions of this radio here, I was looking for the following
improvements without losing any of the advantages of the Tecsun:

- additional bandwidths
- relief from the ACG/soft-mute anomaly which interferes with
listening comfortably to weak AM signals.

After one evening's playing with the Kchibo, I find it to be a mixed
bag. Overall performance on FM, and sensitivity on AM, seem to be on
par with the Tecsun.

The selectable AM bandwidths are nice, and out of order as has been
described here. However the audio on AM seems to be strangely "hissy"
in a way that would otherwise indicate that, on an analog set, you're
tuned way off center of signal. But moving 1 KHz in either direction
causes muffling and muting (as with the Tecsun) so I suspect that
this is not the issue. Perhaps this is the characteristic of the
audio amp chip, or the way it is coupled in this radio.

The other oddity I noticed about the audio is that on medium-to-weak
AM stations there is often a strange "pumping" quality to voice
broadcasts which almost sounds like a dynamic range expander gone way
too far. (As with my first account of what is now referred to
"soft-mute" on the Tecsun, I'm not even sure I'm accurately
describing what I'm hearing here too.) It's as though the louder
syllables in speech are being made even louder still, such that they
seem to jump out of the speaker at you. I first thought the AGC was
pumping in response to splatter from a stronger adjacent channel, but
this happens even when the weak station is out in the clear. All I
can say is - (as would Larry Magne) when it happens this is very
fatiguing to listen to. Side by side, the Tecsun doesn't have
the same issue.

Also - the battery gauge underestimates the state of charge. I have a
few good Nokia batteries and a standalone charger left over from my
E50 days. So when I received the Kchibo, I put a fully-charged Nokia
battery and the battery gauge didn't light up the last bar. Same
thing with all the other batteries I've tried, all charged
independently of the radio. I'm not sure how this will impact on
battery life and any mandatory shutdown when the voltage goes low.

Sometimes I turn the radio off and have it restart the next time
tuned to the same frequency. Other times it's reset back to 520 KHz.
Weird.


D-96L First Impressions

m_a_schuster
 

Just some impressions from a Tecsun PL-300wt owner who ordered a
Kchibo D-96L in search of greener pastures. Based on the earliest
disussions of this radio here, I was looking for the following
improvements without losing any of the advantages of the Tecsun:

- additional bandwidths
- relief from the ACG/soft-mute anomaly which interferes with
listening comfortably to weak AM signals.

After one evening's playing with the Kchibo, I find it to be a mixed
bag. Overall performance on FM, and sensitivity on AM, seem to be on
par with the Tecsun.

The selectable AM bandwidths are nice, and out of order as has been
described here. However the audio on AM seems to be strangely "hissy"
in a way that would otherwise indicate that, on an analog set, you're
tuned way off center of signal. But moving 1 KHz in either direction
causes muffling and muting (as with the Tecsun) so I suspect that
this is not the issue. Perhaps this is the characteristic of the
audio amp chip, or the way it is coupled in this radio.

The other oddity I noticed about the audio is that on medium-to-weak
AM stations there is often a strange "pumping" quality to voice
broadcasts which almost sounds like a dynamic range expander gone way
too far. (As with my first account of what is now referred to
"soft-mute" on the Tecsun, I'm not even sure I'm accurately
describing what I'm hearing here too.) It's as though the louder
syllables in speech are being made even louder still, such that they
seem to jump out of the speaker at you. I first thought the AGC was
pumping in response to splatter from a stronger adjacent channel, but
this happens even when the weak station is out in the clear. All I
can say is - (as would Larry Magne) when it happens this is very
fatiguing to listen to. Side by side, the Tecsun doesn't have
the same issue.

Also - the battery gauge underestimates the state of charge. I have a
few good Nokia batteries and a standalone charger left over from my
E50 days. So when I received the Kchibo, I put a fully-charged Nokia
battery and the battery gauge didn't light up the last bar. Same
thing with all the other batteries I've tried, all charged
independently of the radio. I'm not sure how this will impact on
battery life and any mandatory shutdown when the voltage goes low.

Sometimes I turn the radio off and have it restart the next time
tuned to the same frequency. Other times it's reset back to 520 KHz.
Weird.


Re: MW Station List online - Free

Russ Edmunds <wb2bjh@...>
 

Be aware however that the Canadian and Mexican data is taken from the FCC's online data which a) reflects allocations as opposed to on-air stations, which in Canada means a lot of now-silent AM's are listed; and b) as respects Mexico, is not current due to Mexico's lack of coordination of getting it's own actions into the data.



Russ Edmunds
Blue Bell, PA ( 360' ASL )
[15 mi NNW of Philadelphia]
40:08:45N; 75:16:04W, Grid FN20id

FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15'
AM: Modified Sony ICF 2010 barefoot


--- On Thu, 8/20/09, chuck_rippel wrote:

From: chuck_rippel <Chuck.Rippel@...>
Subject: [ultralightdx] MW Station List online - Free
To: ultralightdx@...
Date: Thursday, August 20, 2009, 11:20 PM

 

There is a complete, maintained database of Domestic, Canadian, Mexican and Western MW stations in Excell format at the bottom of the Home Page at the following site:

http://www.dxfm. com/

Enter your Lat/Lon and also provides distance from your QTH. The list is sortable and makes a handy DX'ing tool.



Re: Grundig G6 Aviator Impression

John H. Bryant <bjohnorcas@...>
 

Chuck,

Thanks for your note during your trip to Universal Radio... sorry that I wasn't there.

From what I've heard, the G6 is a really fine radio. You ought to have a lot of fun with it.  If I remember correctly, the G6 has SSB capabilities.  If that is the case, I believe that it is the radio that the Definitions Committee ruled out of bounds as an "enthusiast" grade rather than an "entertainment grade" radio. While SSB would be of some (marginal?) help dodging IBOC noise for domestic DXers, SSB is a HUGE advantage, as I'm sure you know, when going after the overseas DX.

Just like QRP,  the definition of "Ultralight" is an artificial one, but necessary for giving out awards and keeping Records and Firsts, so the Committee focused on "entertainment grade" as a defining concept. As far as I know, there are few, if any, entertainment broadcasts in SSB mode.

Say, do you ever get out to sea? (Among other things, Chuck is an officer in the US Coast Guard.) With you and Nick Hall-Patch deploying on seaborne scientific trips, and Rob Ross and others going on Cruise junkets, maybe we ought to found an awards section for "Ultralighting Afloat!"

John Bryant
Orcas Island, WA, USA
Winradio G313e and various Ultralights
Wellbrook Phased Array + Superloops



At 03:30 AM 8/21/2009 +0000, you wrote:
 

Grabbed a G6 along with a G8 during my last trip to Universal and am pleasently suprised with the performance of the G6 Avaitor, "Buzz Aldrin" edition.

Nulls well although I am using it tonight with a very small loop, have snagged 3 stations on 600 in about an hour. Actually, my initial reaction is that it hears better than the physically larger G8. Have not heard any overload, spurs or "chugging" when changing frequency. The red backlit display complete with strength meter is kind to the eyes.

More later..

Chuck Rippel


Grundig G6 Aviator Impression

chuck_rippel <Chuck.Rippel@...>
 

Grabbed a G6 along with a G8 during my last trip to Universal and am pleasently suprised with the performance of the G6 Avaitor, "Buzz Aldrin" edition.

Nulls well although I am using it tonight with a very small loop, have snagged 3 stations on 600 in about an hour. Actually, my initial reaction is that it hears better than the physically larger G8. Have not heard any overload, spurs or "chugging" when changing frequency. The red backlit display complete with strength meter is kind to the eyes.

More later..

Chuck Rippel


MW Station List online - Free

chuck_rippel <Chuck.Rippel@...>
 

There is a complete, maintained database of Domestic, Canadian, Mexican and Western MW stations in Excell format at the bottom of the Home Page at the following site:

http://www.dxfm.com/

Enter your Lat/Lon and also provides distance from your QTH. The list is sortable and makes a handy DX'ing tool.