Date   

Re: I received my PL-380 today but don´t know if it´s the late...

Silvio <www-clorofila-up-to@...>
 

TRADUCED BY GOOGLE AND CORRECTED

Hi Gary ,

Thank you for your useful explanation, but i did not understand where is the exact local of this flap "2009.9 VER.2".

I understood that this flap is pasted in outside of the package or pasted in outside of radio box (where if printed the PL-380 photo)?

If possible, may you post this photo in some link or send it to my email www-clorofila-up-to@... ?

I cannot to open the radio to make the coil modification until be sure that it is the new version.

According Jim´s answer (which also grateful for the answer) I sniffed that he he did not know about the details of this so relevante label with this inscription.

Thanks a lot,
Milton

--- In ultralightdx@..., D1028Gary@... wrote:

Hello Milton,

Thanks for your inquiry. The "new version" PL-380 models all have the
shipping box tuck-away flap marked with "2009.9 VER.2" (as in the photo below),
and the "old version" PL-380 models all have the same flap marked as
"2009.9 VER.1" This makes it very easy for a DXer to know which model is
enclosed.



Earlier this month I specifically ordered a "new version" PL-380 from
Joyce, who sent me a model with a serial number of 36920091201007. This model
was manufactured in December, which appears to be the first month that these
"new version" PL-380's were manufactured. Based on the serial number
difference (my new version 369200912xxxxx versus your radio's 369200910xxxxx)
and the fact that your PL-380 was manufactured in November, I'm quite sure
that you have an "old version" PL-380.

Despite this, all available evidence indicates that there is no significant
AM-DXing performance difference between the "new version" and "old
version" PL-380's. I have tested various models of both versions, and they both
perform equally well as AM-DXing radios, either as stock or modified models.
Accordingly, it is probably unnecessary for you to insist upon a "new
version" replacement from Joyce, if your primary objective is AM-DXing.

I will also paste below my response to a related message from "Jm392C,"
who also received one of these "new version" (S/N 369200912xxxxx) models this
month.

73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)



Hello Jm392c,

Thanks for your initial report on the "new version" PL-380, which is
helpful to the group.

My own "new version" PL-380 arrived today by EMS shipment from Joyce of
"Anon-co," and was manufactured in December with a serial number very similar
to yours (36920091201007). After a thorough initial checkout in comparison
to the previous PL-380 models, there is no apparent difference in any of
the AM-related functions, including the "soft mute" level (which still seems
significantly reduced from the PL-310's irritating level).

Those with new PL-380's should be aware that changes in the DSP filtering
selection can have major effects on AM sensitivity, so that switching to
the 2 or 1 kHz setting can increase AM sensitivity (and the S/N ratio reading
in the display) significantly. Consequently, when comparing the live
signal AM reception of two identical PL-380's, it is essential that both radios
have the same DSP filter setting to ensure accurate results.

From the standpoint of an AM-DXer, it certainly seems that Tecsun has not
many any negative changes in these "new version" PL-380 models, so
interested hobbyists are advised to order with confidence.

73, Gary DeBock (in Puyallup, WA, USA)




In a message dated 1/28/2010 12:43:08 P.M. Pacific Standard Time,
www-clorofila-up-to@... writes:




TRADUCED BY GOOGLE AND CORRECTED

Hello friends of ultralight!

Greetings to all!

I have followed all the discussions of this incredible forum with a lot of
attention and satisfaction.

I just received my PL-380 from Joyce via Ebay today, January, 28.

I need to know if my radio is the latest version. It´s label serial number
is 36920091000093 and label with manufacture date, 11/2009.

It was posted on January 08, 2010 and arrived on January 28, 2010 here in
Curitiba, Parana State, Brasil.

I read a messege in group ultralight that PL-380s with serial numbers
36920091200994, 36920091200998 and 36920091201009 have 2 screws in the battery
compartment and had received very stable in SW and soft mute funcion is
disabled.

My question is if my copy is the most current and the soft mute function
is disabled it because I have not had time to test it yet, but I'll do this
later today.

I appreciate if someone can tell me something based on the serial number
anywhere.

I also asked for Joyce but so far she has not responded to my email.

If it is not the most current will try to replace it with Joyce before
making any changes in the OM coil.

My heartfelt greetings and best wishes to all of the group.

Milton
Curitiba city
Parana State
Brasil


Re: Eton E5

jerrysteck
 

thanks all for the replies and tips--i was pretty sure of the answer; just checking to make sure--Jim i do need to check the file and kinda get my feet on the ground here--i have been slowly easing into ultralighting and need to become acquainted with the process and rules--
thanks once more to all

jerry
=========================================================



would an Eton E5 be considered an ULR?--it is small, but it would seem
to have more gizmos than a typical ULR--i have one and am just curious
about what the ruling might be--
==========================================================
Jerry,

Head on over to the Files section on the Yahoo site, look in Section 1
Start Here for the first article, "An Introduction To Ultralight
DXing.pdf." Page 1 has the criteria. The E5 apparently doesn't qualify
on two counts: Cost >$100 and the inclusion of SSB.


73,

Jim, KR1S
http://qrp.kearman.com/ <http://qrp.kearman.com/>


Re: Si4734 Hardware and Software Guides

Roy <roy.dyball@...>
 

Thank you for the complement Phil.

In the early days of getting my interface working I looked at using RS232 to keep the cost down. An early interface I constructed used the URAT output lines of an FTDI chip by bit banging the normal RS232 lines in an I2C two wire configuration (SDIO SCLK), the trouble was it was too slow and I could not get status information back quick enough by polling. The other problem was I had to convert my interface to the 3 wire legacy control interface from I2C because that is what Tecsun uses in our little radios and I wanted the ability to remove the radio from the computer and be able to go on using it with the changes just made (soft mute off different filter).

The 3 wire (SDIO SCLK SEN) control interface opened up a big can of worms because it uses a non standard nine bit control word. I then discovered I could use the advanced bit banging functions of the FTDI chip to construct a non standard nine bit word and get my I/O routines running fast enough to produce good results. By this time it was clear to me that RS-232 would not do the job.

Scott has a superior interface to mine in that he is using a Si Labs C8051F321 MCU this allows him to tristate the control lines making a switch not necessary to unhook the radios controller. Also by using an MCU it takes a huge load of the computer because the I/O to the Si4734 is done locally by the MCU. Another good feature is it can store command sequences that can be run without a computer say at power up or at the press of a button.

Cheers Roy.    

  

--- In ultralightdx@..., "just_rtfm" wrote:
>
>
>
> howdy Roy!
>
> thank you. i need to add that info. my original plan was RS232 control. i recently saw your USB/G8 work... excellent job!
>
> regards,
> phil :)
>


New file uploaded to ultralightdx

ultralightdx@...
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the ultralightdx
group.

File : /Members Sound Files/PL380 6 4 3 2 kHz XEPE.mp3
Uploaded by : tonyzl <tonyzl@...>
Description : Demo TecsunPL380 DSP steps 6 4 3 2 1

You can access this file at the URL:
http://groups.yahoo.com/group/ultralightdx/files/Members%20Sound%20Files/PL380%206%204%203%202%20%20%20kHz%20XEPE.mp3

To learn more about file sharing for your group, please visit:
http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles

Regards,

tonyzl <tonyzl@...>


Re: Si4734 Hardware and Software Guides

just_rtfm
 

howdy Roy!

thank you. i need to add that info. my original plan was RS232 control. i recently saw your USB/G8 work... excellent job!

regards,
phil :)


Re: Eton E5

Gary Kinsman
 

The E5 is also much too large to be an ultralight.

--- In ultralightdx@..., "jim_kr1s" <jkearman@...> wrote:


--- In ultralightdx@..., "jerrysteck" <geraldsteck@>
wrote:

i think the answer to my upcoming query is a negative--
having said that i will now ask:

would an Eton E5 be considered an ULR?--it is small, but it would seem to have more gizmos than a typical ULR--i have one and am just curious about what the ruling might be--
Jerry,

Head on over to the Files section on the Yahoo site, look in Section 1 Start Here for the first article, "An Introduction To Ultralight DXing.pdf." Page 1 has the criteria. The E5 apparently doesn't qualify
on two counts: Cost >$100 and the inclusion of SSB.


73,

Jim, KR1S
http://qrp.kearman.com/ <http://qrp.kearman.com/>


Re: Eton E5

jim_kr1s <jkearman@...>
 


--- In ultralightdx@..., "jerrysteck" >
> i think the answer to my upcoming query is a negative--
> having said that i will now ask:
>
> would an Eton E5 be considered an ULR?--it is small, but it would seem to have more gizmos than a typical ULR--i have one and am just curious about what the ruling might be--

Jerry,

Head on over to the Files section on the Yahoo site, look in Section 1 Start Here for the first article, "An Introduction To Ultralight DXing.pdf." Page 1 has the criteria. The E5 apparently doesn't qualify on two counts: Cost >$100 and the inclusion of SSB.


73,

Jim, KR1S
http://qrp.kearman.com/ 


Eton E5

jerrysteck
 

i think the answer to my upcoming query is a negative--
having said that i will now ask:

would an Eton E5 be considered an ULR?--it is small, but it would seem to have more gizmos than a typical ULR--i have one and am just curious about what the ruling might be--

73
jerry--k5psh


Re: Si4734 Hardware and Software Guides

Roy <roy.dyball@...>
 

Hi Phil

Your Ver 2 is very informative.

 

You might like to point out that the AM: LO frequency is 45 kHz above RF for RF frequencies < 1000 kHz and 45 kHz below RF for RF frequencies > 1000 kHz. For example, LO frequency is 945 kHz when tuning to 900 kHz. Also in Ver 40 firmware there are two more filter selections available 1.8Khz an 2.5Khz with gradual roll off, also a power line filter is available. Also some of the power up defaults have changed e.g. the soft mute with the introduction of the Ver 40 firmware (Si4734-C40).

 

Cheers Roy.

 

 

 


--- In ultralightdx@..., "just_rtfm" wrote:
>
> Hacking the Si4734:
> Hardware (Ver 2) and Software Handbooks for Shortwave
>
> available at link below. error reports welcome.
> http://home.comcast.net/~phils_radio_designs/index2.htm
>
> regards,
> phil :)
>


Si4734 Hardware and Software Guides

just_rtfm
 

Hacking the Si4734:
Hardware (Ver 2) and Software Handbooks for Shortwave

available at link below. error reports welcome.
http://home.comcast.net/~phils_radio_designs/index2.htm

regards,
phil :)


Re: What about Kchibo DSP KK-S500 MW FM SW

jim_kr1s <jkearman@...>
 


Note the trucated MW coverage:

Specifications :

 1. Frequency Range

      FM: 76-108 Mhz

      MW: Asia, Africa and Europe, 522-1620Khz 9KHz step

              United States, Canada, 520-1620KHz 10KHz step

:(

73,

Jim, KR1S
http://qrp.kearman.com/ 


Re: What about Kchibo DSP KK-S500 MW FM SW

dhsatyadhana <satya@...>
 

Hi gc:

The Kchibo KK-S500 appears to be a dual conversion "regular" radio, not a DSP radio. It has synchronous detection, akin to SSB, and is fairly large, so it would therefore not qualify as an ULR. The reviews I have seen of it are fairly positive.

Regards - Kevin S
Bainbridge Island, WA

--- In ultralightdx@..., gratiscomputer <gratiscomputer@...> wrote:

Hello,

Would it contain teh silabs dsp chip too??

gc


Re: Montreal AM shutdowns

Jim <va3jno@...>
 

I am not surprised that the call letters were not mentioned. The vast majority of people would not have a clue what station were were talking about if you referred to them only by call letters since most stations only give out their call once an hour, if that. They would know the station by slogan, though.

73, Jim

Mark Roberts wrote:

 

Here's an article from the Montreal Gazette about the shutdown of the
two Montreal stations, CINF and CINW. It's interesting that the
station call letters were not mentioned in the article.

http://www.montrealgazette.com/business/AM940+Info690/2499582/story.html


Traverse City, MI Loggings, All Times UTC

Antonios Kekalos <akekalos@...>
 

1.31.10, 0955, am 540, CBEF, Windsor, ON, 216mi/348km, CCRadio-SWP (ID This is CBC Radio 1)
1.31.10, 1010, am 1120, KMOX, St. Louis, MO, 486mi/781km, CCRadio-SWP (Playing Old Time Radio program)


--
Tony Kekalos
Traverse City, MI
SWLR-RN072
EN74es



What about Kchibo DSP KK-S500 MW FM SW

gratiscomputer <gratiscomputer@...>
 

Hello,

Would it contain teh silabs dsp chip too??

gc


Re: Measuring PL-380 Soft-Mute

sdwillingham
 

Further info: Via my USB-equipped PL-300wt, I can read out that
its soft-mute is configured with a threshold at SNR = 6 dB and
the soft-mute slope is 2 dB/dB. This means that for each dB
that the SNR reads below 6, the volume is reduced by 2 dB. At
SNR = 0 dB, the maximum volume reduction is 12 dB.

I suspect that the PL-380 simply changes the soft-mute slope
parameter to 1 dB/dB, so it reduces the gain more gently and to
a maximum of 6 dB. I'll have to confirm that when I get around
to modifying my PL-380 with a USB interface.

-Scott-

--- In ultralightdx@..., "sdwillingham" <sdwillingham@...> wrote:


For comparison, my stock PL-300wt measures about 12 dB soft-mute.

-Scott-

--- In ultralightdx@..., "sdwillingham" <sdwillingham@> wrote:


Hi All,

It has been debated occasionally whether the PL-380 has
soft-mute. The short answer is: mine does (PL-380 2009.9 ver 1)
and it's fairly easy to measure. The procedure is to tune a
strong, steady station, measure its average audio level, then
off-tune by 1kHz, and finally remeasure its level.

To measure the average level, use a free computer recording
program. I think many of you have Audacity and, while it's not
my favorite, it works fine for this purpose. Here's what I did:

1) Install Audacity and launch the program.
2) Attach an audio cable from your PL-380 to the computer's
mic or line input.
3) Turn the radio on, tune in a strong station with good
SNR, and set the radio's volume control to 7 or 8. Also,
set the IF filter to 6 kHz.
4) Back in Audacity, locate the input meter (rightmost), and
click on meter to start monitoring the input. (Stretch the
meter toolbar out to see the levels better.)
5) Next, you'll have to locate your system's recording mixer
and adjust the recording level. I can't tell you the
specifics, since this depends on your sound card. If you
are using a 'mic' input, try to turn off its 'boost'
setting. Adjust the mixer level until the average signal
shows about -15 dB or so on the Audacity meter.
6) Now monitor the signal's running peak (a dark-red
vertical line on the meter). Determine a where this peak
sits for a particular talker's voice or song. For
example, I'm seeing about -12 dB on my meter now.
7) Tune the radio off-carrier by 1kHz. Even for strong
signals, this causes the radio to indicate and SNR of 0 dB
which kicks-in the soft-mute function. Measure the peak
level again. I see about -18 dB now. So my conclusion
is that my radio has about 6 dB maximum soft-mute.

The conclusion is, PL-380 2009.9 ver 1 radios have about 6 dB
soft-mute. This probably also means that the soft-mute
threshold is 6 dB, but that is not certain. We can also
conclude that Tecsun is setting this deliberately, since it does
not match with the Si4734 defaults (neither firmware 2.0 or
4.0). Perhaps one of you with a 'new' model can test if the
settings have been changed.

-Scott-


Re: Kchibo KK-D6110 - anyone have one?

dhsatyadhana <satya@...>
 

I agree Jim - this is probably a fairly pedestrian model, otherwise they would have trumpeted the filter choices as with the D96L.

Kevin

* Adjustable bandwidth;
Mw step: 9KHz (1KHz/9KHz) /?10KHz (1KHz/10KHz).
SW Stepping 0.001MHz/0.005MHz.
FM step 0.05MHz/0.1MHz.

Which of course is a misnomer. The buttons are labeled in Chinese, but
if selectivity were adjustable I think they'd mention it.

73,

Jim, KR1S
http://qrp.kearman.com/ <http://qrp.kearman.com/>


New UL Logs

John Cereghin <jcereghin@...>
 

Two new stations to add to the UL lately, heard on the PL-310 barefoot:

January 28
1060 WILB Canton OH, 1700, “This is AM 1060, WLIB…Catholic Radio for
northeast Ohio”, into a world newscast, no sign of KYW. A surprise!
UL station 667.

January 30
690 WSPZ Birmingham AL, 1645, Fox Sports Radio, call ID, “The Sports
Animal”, heard with the Montreal station now silent. UL station 668.

John Cereghin
Smyrna DE


Re: New member and new G8 owner

keith beesley
 

Hi Dave,

It has been said before, but probably bears repeating, that with the newer Chinese radios, you can't judge the performance of a certain make and model by a particular unit. They are fully capable of making very good radios; but sometimes you have to return one or two lemons before you get a "good one."

I don't own an outdoor antenna either but enjoy listening outside, weather permitting :-)

Welcome to the group and 73,

Keith B.

--- In ultralightdx@..., "D" <blvd_4762@...> wrote:

Hello!

Just saying "hi" to the group, as a new member. Also, I wanted to say that I purchased a Grundig G8 last night and am very happy I did. A neat little set; my first radio with DSP. The selectivity is very good. What they say about its AM and FM recpetion in that regard is true!

I also like the neat signal meter which displays the signal-to-noise ratio, even though I don't really understand just exactly what sort of readings one should be looking for... or hoping for with this! I understand that a higher number for the signal itself is obviously better; my ears tell me that! However, I am not sure just what the signal-to-noise number means; is higher better?...or lower?...my guess is that the smaller the gap between the two numbers is probably better?

Anyway, I am enjoyig the G8. I must have gotten a good one because mine does not have any of the image problems on SW that others report. I've been up and down all over the dial, too. Not one single image have I noted yet.

Actually, I should say "thanks" to this group. It is because of you that I have my G8. The information I read on this message board made me go out and buy it. You see, I actually tried the G8 once before. I bought it on impulse one day. (I never told my wife about it..."what!? ANOTHER radio!?!"...do any guys here ever deal with this phenomenon?) Anyway...I was never impressed at ALL with this first set. There was not a single shortwave station that I could get clearly; every single one had images which I could not seem to tune out by relocating the radio, detuning, lowering the antenna...all the usual tricks one uses. It also had the warbling sound that some have reported, due to the mute function on the DSP chip being out of alignment, so they say.

I finally decided after a couple of weeks to simply return it. After all, I really did not need ANOTHER radio, especially one that seemed to be a real dog. Christmas was coming, and the extra cash certainly would be nice to have anyway. (Part of the problem may have been that I bought the display model? Who knows how many people handled it, dropped it, etc.?) Well, I kept reading in various places how good the little G8 is. I wondered what I had been missing. Perhaps I had gotten a lemon? Perhaps I did not spend enough time getting used to the nuances of the set? So...when I joined this group last night and read the wonderful review of the G8 posted here, I got up out of the chair, put my coat on and asked my wife if she wanted to take a car ride with me to Radio Shack so I could get a Grundig G8. She said, "sure", and well, now I have one again. This time, it's a really good one!

For the record, I should actually clarify one thing. My wife is very supportive of my radio hobby. She never balks when I buy a new radio. I just sometimes avoid telling her about a new radio because, I dunno...I feel sort of foolish, ya know? Us guys don't always want our significant others to realize just what a "little boy" we still are when it comes to our passion for our toys!

My other radios are:
Zenith Trans_Oceanic Royal 1000D,

Eton/Grundig models:
E1
E5
E10
E100
YB 550PE
S350
FR200
Mini 100
Mini 300PE
G1000A
G2000 ("Porsche")
G4000A (a.k.a YB 400)
G3 traveller
G6 Aviator - Buzz Aldrin edition
G1100
Satellit 750
Satellit 800

Realistic DX398 (a.k.a. Sangean ATS 909)

Sonys:
ICF 7600GR
ICF 2010

I have also owned the Sangean ATS 808 and the Realistic DX 440, (a.k.a. Sangean ATS 803 - another radio I never quite felt all that great about...seemed so "hissy" and somewhat deaf.)

I want to try the new Grundig Mini 400 that sells for about $30.
That will be next!

As for antennas, I have never had an outdoor antenna! I am 48 years old and have been listening to shortwave since I was about 12. Can you believe it? That's another thing I should look into!! One could say that a couple of the sets I own are almost "wasted" on a guy like me. For instance, to own an E1 and never hear it really sing on an outdoor antenna!? That's probably some sort of radio crime! And maybe the DX 440 I owned would have done much better with an outdoor antenna too!

Active Antennas I use: Sony ANLP_1, Degen 31, C Crane Twin Coil Ferrite
I have one Passive antenna: Grundig AN200

Well, I've gone on long enough here. However I just wanted to say hello and "thanks" for inspiring me to give the G8 another try!

Sincerely,
Dave from Minnesota


New member and new G8 owner

D <blvd_4762@...>
 

Hello!

Just saying "hi" to the group, as a new member. Also, I wanted to say that I purchased a Grundig G8 last night and am very happy I did. A neat little set; my first radio with DSP. The selectivity is very good. What they say about its AM and FM recpetion in that regard is true!

I also like the neat signal meter which displays the signal-to-noise ratio, even though I don't really understand just exactly what sort of readings one should be looking for... or hoping for with this! I understand that a higher number for the signal itself is obviously better; my ears tell me that! However, I am not sure just what the signal-to-noise number means; is higher better?...or lower?...my guess is that the smaller the gap between the two numbers is probably better?

Anyway, I am enjoyig the G8. I must have gotten a good one because mine does not have any of the image problems on SW that others report. I've been up and down all over the dial, too. Not one single image have I noted yet.

Actually, I should say "thanks" to this group. It is because of you that I have my G8. The information I read on this message board made me go out and buy it. You see, I actually tried the G8 once before. I bought it on impulse one day. (I never told my wife about it..."what!? ANOTHER radio!?!"...do any guys here ever deal with this phenomenon?) Anyway...I was never impressed at ALL with this first set. There was not a single shortwave station that I could get clearly; every single one had images which I could not seem to tune out by relocating the radio, detuning, lowering the antenna...all the usual tricks one uses. It also had the warbling sound that some have reported, due to the mute function on the DSP chip being out of alignment, so they say.

I finally decided after a couple of weeks to simply return it. After all, I really did not need ANOTHER radio, especially one that seemed to be a real dog. Christmas was coming, and the extra cash certainly would be nice to have anyway. (Part of the problem may have been that I bought the display model? Who knows how many people handled it, dropped it, etc.?) Well, I kept reading in various places how good the little G8 is. I wondered what I had been missing. Perhaps I had gotten a lemon? Perhaps I did not spend enough time getting used to the nuances of the set? So...when I joined this group last night and read the wonderful review of the G8 posted here, I got up out of the chair, put my coat on and asked my wife if she wanted to take a car ride with me to Radio Shack so I could get a Grundig G8. She said, "sure", and well, now I have one again. This time, it's a really good one!

For the record, I should actually clarify one thing. My wife is very supportive of my radio hobby. She never balks when I buy a new radio. I just sometimes avoid telling her about a new radio because, I dunno...I feel sort of foolish, ya know? Us guys don't always want our significant others to realize just what a "little boy" we still are when it comes to our passion for our toys!

My other radios are:
Zenith Trans_Oceanic Royal 1000D,

Eton/Grundig models:
E1
E5
E10
E100
YB 550PE
S350
FR200
Mini 100
Mini 300PE
G1000A
G2000 ("Porsche")
G4000A (a.k.a YB 400)
G3 traveller
G6 Aviator - Buzz Aldrin edition
G1100
Satellit 750
Satellit 800

Realistic DX398 (a.k.a. Sangean ATS 909)

Sonys:
ICF 7600GR
ICF 2010

I have also owned the Sangean ATS 808 and the Realistic DX 440, (a.k.a. Sangean ATS 803 - another radio I never quite felt all that great about...seemed so "hissy" and somewhat deaf.)

I want to try the new Grundig Mini 400 that sells for about $30.
That will be next!

As for antennas, I have never had an outdoor antenna! I am 48 years old and have been listening to shortwave since I was about 12. Can you believe it? That's another thing I should look into!! One could say that a couple of the sets I own are almost "wasted" on a guy like me. For instance, to own an E1 and never hear it really sing on an outdoor antenna!? That's probably some sort of radio crime! And maybe the DX 440 I owned would have done much better with an outdoor antenna too!

Active Antennas I use: Sony ANLP_1, Degen 31, C Crane Twin Coil Ferrite
I have one Passive antenna: Grundig AN200

Well, I've gone on long enough here. However I just wanted to say hello and "thanks" for inspiring me to give the G8 another try!

Sincerely,
Dave from Minnesota