Date   

Re: Sony SRF T615 vs. Sangean DT-400W Performance

Gary DeBock
 

Hi Tom,
 
     Thanks for your question about the performance of the Sony SRF-T615, relative to the DT-400W and DT-200VX radios.  I assume you have already read the Summertime Shootout posted on dxer.ca, in which all these models are competitively graded.
 
     Typically, the DT-400W will exceed the SRF-T615 in high-band sensitivity, although not by a great level.  There have been individual differences reported by enthusiasts in DT-400W sensitivity, so some variation is possible.  Before making the judgement in the Summertime Shootout for the DT-400W's top rating in wide-band sensitivity, I did order three different models, all of which had superior wide-band sensitivity to both the E100 and SRF-T615 in my competitive testing.
 
     The SRF-T615 has far superior nulling ability to the Sangean units, however.  It is much more compact, and has unexcelled audio and AGC among the Ultralight class.  A final point to consider is that there has never been a negative comment about the SRF-T615's sensitivity, among the 25+ estimated owners in the Ultralight radio enthusiast group.  All owners are overwhelmingly positive about the radio, despite the lofty price.
 
     73,  Gary DeBock  




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E100 Selectivity

Gary DeBock
 

Hello Jay and Others,
 
     Jay, I would have to agree with all the other comments concerning the typical selectivity of the Eton E100.  If you compare your new E100's selectivity with that of any other Ultralight radio model and find it disappointing, you probably have a lemon.
 
     Comparing the selectivity of the stock E100 with that of the Sony ICF-S5W may be interesting, but the Ultralight models are by definition "consumer radios," and the ICF-S5W was obviously designed for a more demanding AM-DXing mission. In comparison to all other Ultralight radios, a non-defective E100 should be the clear winner in selectivity.
 
     Sensitivity, however, can be all over the map with a factory-aligned E100.  I have actually never seen two E100 models which were identical in sensitivity straight from the factory, and I have aligned about 10 of them. Even after alignment, the units still have differing levels of low-band sensitivity.  If was the major factor that led our experimental group to ditch the stock loopstick, and create the new monster "Slider" models.
 
     73, Gary    




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Re: earbuds for SRF 59

starship20012001 <norbert_1226@...>
 

I solved this problem. i found a pair of decent koss earbuds with
decent rubber that fit and stay in my ears. SQ is good enough for DX .
I also picked up a perfect armband case it fits in like a glove. I can
now easily have the SRF 59 with me at all times when on the road for
DX opportunties !!!
--- In ultralightdx@..., "starship20012001"
<norbert_1226@...> wrote:

I am trying to figure out a way to easily take the SRF 59 to the
park
on a pedal bike . I have a media case i picked up from walmart that
holds batteries, the srf 59 but not enough room for headphones. At
home i would use my sony monitor headphones with 8 feet of cord
which
makes an good FM antenna and great SQ even on AM !!! this is fine
for
at home but the headphones are too big for the case. i m thinking of
an earbud solution oly for the reason that they will fit the case.
Also a small set of fold up headphones will do too . But i'm looking
for good volume and SQ so i can hear what i'm DXing . also have to
figure wire lenght for FM antenna. i would prefer a headband so they
stay in my ears any suggestions ????


Re: all the obvious DXing stuff?

Jay Heyl
 


Re: Welcome to New Ultralight DX Group Members

Dennis Gibson <wb6tnb@...>
 

It sounds to me like your E100 very likely has something wrong with
it. There are many E100 owners in this group and maybe some of them
also have a Sangean DT-200V. If you can I'd return it for an exchange.
I don't think stations that aren't blowing the doors off such as your
5 KW at least 20 miles away should be a problem for an E100.

73

--- On Sun, 9/21/08, Jay Heyl <yahoogroups@...> wrote:

I've not done extensive head-to-head tests, but I'd have to put my
E100 behind my DT200V. I've not used the DT400W so I don't know how
that compares.


Re: High-Q Mini-Loop for Ultralights

satya@...
 

Hey John/all:

I posted a couple pictures earlier on the UltraLight group in the Photos
section, depicting how I placed the coil inside of an old 3.5" computer
diskette box, put a small variable capacitor on it, and Voila! a ULr-sized
passive loop, perfect for inductive coupling to an ULr. The high-tech
packing material is "papier toilette" in order to keep the loop from
bouncing around.

Kevin S
Bainbridge Island, WA


Kevin

Kevin...

I must have missed the e-mail that described how you are using these
loops w/ULR. Are you connecting them directly to the ULR, with an
inductive coil on the loopstick? Or are you hooking them to a
capacitor and tuning them, with side-by-side inductive coupling? Or
are you pulling out the stock loopstick and substituting the coil...
easy to do in the E100. ???? Intensely curious.... and sorry if I
missed a post.

John Bryant,
Ultralighting my way across Peru


Re: SRF 59 Rises from dead

Dennis Gibson <wb6tnb@...>
 

One of my friends has an SRF-59 that performs very poorly on a NiMH
battery but great with an alkaline. Go figure.

Anything that can keep up with a Kaito KA1103 is doing pretty well.

--- In ultralightdx@..., "starship20012001"
<norbert_1226@...> wrote:

Lets go back to end of December 2007. went to circuit city and picked
up a srf-59. It was cold outside then but a quick band scan seemed OK.
Just after New years day i went to my back up apartment on the other
side of the state while renovations were done here. i packed the sfr-59
in my suitcase. When i arrived at the temp backup apt and attempted to
DX with the SRF 59 it seemed suddenly DEAF !!!!! i had a grundig mini
300 with me and the mini 300 at the time was blowing away the srf-
59 !!!! i even took these both outside for shootouts and the SR-59
could hardly hear NY during the day (it should have heard 660,880, and
possibly 1010 and 1130.) !!!! The grundig min did at the time. so i
spent the winter at the backup apt basically used the grundig mini 300
for my time there. i wrote the sony off as junk and put it away and
forgot about it. Fast forward in time. spring comes renovations done
returned home. The summer DX season was coming and my mind was on a
eton e-100 the srf 59 remained forgotten and left in the suitcase and
just put away for the summer. Fast forward in time to sept 20th 2008 4
AM EDT. i got early for sunrise DX. for some strange reason i had an
urge to pull the SRF 59 out to give it a try. i remembered it was deaf
from the winter. but was desperate. colder weather will be coming and
the kaito 1103, eton e10, eton e100 ETC were all filled with growls,
hissing, grinding sounds, IBOC hash you name it. DX was IMPOSSIBLE in
this QHT !!!! sure all these radios performed great at the park but
too bad i don't live there !!!! so i put a brand new fully charged
digital camera high power rechargeable AA battery in the SR 59. what
happened next was straight out of the twilight zone !!!! The deaf
walkman suddenly morphed into a mean mad little silver bullet DX
machine capable of the IMPOSSIBLE !!! heard was WIZZ around 10 AM
which can only be heard at the park on Kaito 1103 .......the srf59 was
pulling it in HERE at QHT !!!! Next it pulled in 560 springfield mass
over WDZZ 550 which runs IBOC ......during the DAY !!!! 660, 770
(weak),880,1010,1130, all heard on groundwave during day. In fact the
srf 59 basically MATCHED the kaito 1103 on MW !!!!! In some cases the
kaito 1103 could not null hash on 560 and could no hear it while the
srf 59 did due to its ability to null. later during the day after 11 AM
or so tropo started on FM. SRF 59 heard 102.9 portland maine and 94.9
MT washington NH right here at QHT. Main is a good 200 miles.last
night it brought in everything . Even 1010 , 1020, 1030 were hearable
no problem. 740 which is jammed my a growl on the kaito 1103 and eton
10 came in just fine in the sRF 59 !!!! i am still waiting to wake up
from this dream as this is not possible........!!!!


Re: High-Q Mini-Loop for Ultralights

John H. Bryant <bjohnorcas@...>
 

Kevin...

I must have missed the e-mail that described how you are using these loops w/ULR.  Are you connecting them directly to the ULR, with an inductive coil on the loopstick?  Or are you hooking them to a capacitor and tuning them, with side-by-side inductive coupling? Or are you pulling out the stock loopstick and substituting the coil... easy to do in the E100.  ????  Intensely curious.... and sorry if I missed a post.

John Bryant,
Ultralighting my way across Peru


all the obvious DXing stuff?

Tim Davisson
 

This group is really growing nicely!

The ultralight phenomenon has really stoked a lot of interest in AM-
band DXing....and re-ignited my interest in broadcast band DXing
even though I'd been doing it off and on since the early 1960's as a
young kid.

But, I was thinking...are there obvious things we can do to enhance
our ultralight fun? Maybe. Maybe everybody already knows the
following ideas, but with so many new listeners...maybe not:

*wear headphones. It's far easier to pull a signal out of a busy
frequency with headphones. On a noisy, busy frequency in particular,
headphones seem to make it far easier to pick out call letters or
other bits of information during signal fades or other stations
popping in and out while you're trying to pull a station "out of the
mud".

*earbuds. I've found earbuds to be handy size-wise, but they're said
to be bad for your ears' health and they just don't seem to work
nearly as well as regular headphones IMHO.


*DX away from computers, TVs that are on, and cable/DSL boxes. Why?
These devices put interference/whistles onto the AM band if you're
too close by while listening. Your DX location needs to be at least
20 feet from computers, TVs, cable boxes, microwave ovens that are
in use, and so forth. When possible, turn off those devices.

*DX sunrise weekdays. By far the time of the day that AM stations
are most active with their live and/or local programming. It's
radio's primetime...best chance to hear a local commercial,
newscast, weather report...thus easier to identify who/what you're
listening to. The most interesting propagation comes roughly an
hour before your local sunrise til an hour after local sunrise.

*DX sunset. Good propagation roughly an hour before your local
sunset til an hour after local sunset.

*DX when it's dark out. Or, between your local sunset and the next
morning when the sun comes up. After local sunset running til just
before your local sunrise, conditions tend to settle down and be
pretty stable.

*When it's dark...somewhere it's light. Since I live on the eastern
edge of the midwest in Ohio...this works best for me at sunset.
Right after my local sunset in Akron...and for an hour or so
depending on band conditions/skip...I can often hear stations in
states to the west where's it's still light outside. They're
frequently still on daytime powers and antenna patterns. Makes it
easier to hear them.

*Remember to null. Nulling out a station you don't want to hear
(local, semi-local) in order to hear another station on the same
frequency or nearby frequency is one of the oldest AM DXing
techniques. That's why I personally look for the radio that has the
best nulling capability.

*Find a high-powered AM, and null. When conditions are really alive,
I'll head for the "clear-channel" stations (not the ones owned by
the company of the same name...the ones I mean are 50,000-watt
stations that have huge, regular coverage areas). Tune in one of
those stations, and null/turn the radio and look for a null in the
big station's signal. Often you'll be amazed what you can
hear...hundreds of miles away, occassionally thousands of miles
away. It's really a cool aspect of AM DXing many forget about.

*DXing FM. What's FM? LOL, hi, hi.

There's a few of the things I've learned and been taught over the
decades listening to AM for distant stations. I'm sure there's many
I've missed, and I hope others will add their tips.

Many of these items to a lot of us....but maybe not all of us, are
obvious. Hope it helps some of you.

73's,

Tim, KD8GZ
Norton, Ohio


Puyallup, WA TP's for 9-21

Gary DeBock
 

Happy Fall Equinox,,
 
     The band was better this morning with a decent sunrise peak, providing a new modified E100 Ultralight logging of HLSA-603 at 1320 (conversation in Korean, fairly good signal). 
 
     High band powerhouses like 1566 and 1575 also were back at normal strength, as well as the usual Japanese on 594,747,774 and 828.  Seasonal performers like 648, 657, 666 and 963 were strong.  It was a very good morning for propagation here, although not at great levels like last Sunday.  I was chasing "almost audio" on 684, 756, 1035, 1134 and others on both the modified ICF-2010 and E100, and some were at threshold audio off and on, but no clear loggings.  675 audio was recorded around 1343 for language determination (Chinese or Vietnamese), and the propagation seemed to continue much longer than usual past sunrise.  39 Modified E100 TP loggings to date-- and it was a real blast receiving every one!
 
     73,  Gary
 
Modified ICF-2010:  30" loopstick constructed of four Amidon 7.5" ferrite bars, wound with 40/44 Litz wire
Modified E100:  7.5" Amidon Slider loopstick + CFJ455K5 Murata IF filter
 
    




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Re: Welcome to New Ultralight DX Group Members

Russ Edmunds <wb2bjh@...>
 

--- On Sun, 9/21/08, Jay Heyl <yahoogroups@...> wrote:

I've not done extensive head-to-head tests, but I'd have to put my E100 behind my DT200V. I've not use the DT400W so I don't know how that compares.


*** If that's the case, you have a lemon. There's no way and E100 should have less selectivity than the DT200V/VX series!
 
 


Russ Edmunds
Blue Bell, PA ( 360' ASL )
[15 mi NNW of Philadelphia]
40:08:45N; 75:16:04W, Grid FN20id
<wb2bjh@...>
FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15'
AM: Modified Sony ICF 2010 barefoot


earbuds for SRF 59

starship20012001 <norbert_1226@...>
 

I am trying to figure out a way to easily take the SRF 59 to the park
on a pedal bike . I have a media case i picked up from walmart that
holds batteries, the srf 59 but not enough room for headphones. At
home i would use my sony monitor headphones with 8 feet of cord which
makes an good FM antenna and great SQ even on AM !!! this is fine for
at home but the headphones are too big for the case. i m thinking of
an earbud solution oly for the reason that they will fit the case.
Also a small set of fold up headphones will do too . But i'm looking
for good volume and SQ so i can hear what i'm DXing . also have to
figure wire lenght for FM antenna. i would prefer a headband so they
stay in my ears any suggestions ????


SRF 59 Rises from dead

starship20012001 <norbert_1226@...>
 

Lets go back to end of December 2007. went to circuit city and picked
up a srf-59. It was cold outside then but a quik band scan seemed OK.
Just after Newyears day i went to my back up apartment on the other
side of the state whle renovations were done here. i packed the sfr-59
in my suitcase. Whn i arrived at the temp backup apt and attemped to
DX with the SRF 59 it seemed suddenly DEAF !!!!! i had a grundig mini
300 with me and the mini 300 at the time was blowing away the srf-
59 !!!! i even took these both outside for shootouts and the SR-59
could hardly hear NY during the day (it should have heard 660,880, and
possibly 1010 and 1130.) !!!! The grundig min did at the time. so i
spent the winter at the backup apt basicly used the grundig mini 300
for my time there. i wrote the sony off as junk and put it away and
forgot about it. Fast forward in time. spring comes renovations done
returned home. The summer DX season was coming and my mind was on a
eton e-100 the srf 59 remained forgotten and left in the suitcase and
just put away for the summer. Fast forward in time to sept 20th 2008 4
AM EDT. i got early for sunrise DX. for some strange reason i had an
urge to pull the SRF 59 out to give it a try. i remembered it was deaf
from the winter. but was desperate. colder weather will be coming and
the kaito 1103, eton e10, eton e100 ETC were all filled with growls,
hissing, grinding sounds, IBOC hash you name it. DX was IMPOSSIBLE in
this QHT !!!! sure all these radios performed great at the park but
too bad i dont live there !!!! so i put a brand new fully charged
digital camera high power rechargable AA battery in the SR 59. what
happened next was straight out of the twilight zone !!!! The deaf
walkman suddendly morphed into a mean mad little silver bullet DX
machine capable of the IMPOSSIBLE !!! heard was WIZZ around 10 AM
which can only be heard at the park on Kaito 1103 .......the srf59 was
pulling it in HERE at QHT !!!! Next it pulled in 560 springfield mass
over WDZZ 550 which runs IBOC ......during the DAY !!!! 660, 770
(weak),880,1010,1130, all heard on groundwave during day. In fact the
srf 59 basicly MATCHED the kaito 1103 on MW !!!!! In some cases the
kaito 1103 could not null hash on 560 and could no hear it while the
srf 59 did due to its abilty to null. later during the day after 11 AM
or so tropo started on FM. SRF 59 heard 102.9 portland maine and 94.9
MT washington NH right here at QHT. Main is a good 200 miles.last
night it brought in everything . Even 1010 , 1020, 1030 were hearable
no problem. 740 which is jammed my a growl on the kaito 1103 and eton
10 came in just fine in the sRF 59 !!!! i am still waiting to wake up
frm this dream as this is not possible........!!!!


Re: Welcome to New Ultralight DX Group Members

Jay Heyl
 


Re: This Group is Amazing- Correction

kirk74601 <kirk74601@...>
 

Sorry Guys,
A correction to the daytime logging I mentioned on 670. That was
actually KLTT, Commerce City, CO, not KHOW as I reported. Sorry about
that. 73, Kirk
--- In ultralightdx@..., "kirk74601" <kirk74601@...>
wrote:

Greetings Fellow Ultralighters,

I continue to be amazed at the amount of cool info being posted
here.
I'd like to comment to many members, but that might take a lot of
words! Congrats to Richard for hitting 300+ stations, and to all
you
heavy-hitters here! Sometimes I feel like a snail when I compare my
numbers to many of you all. I didn't really start getting enthused
about ultralighting until around June. So far, using the E100 and
the
SRF59,I've managed to log 164 stations. I'm already noticing the
difficulty is increasing unless there's some good
openings/propogation. Robert summed it it quite well; it just all
depends on many factors. Being "inconvienced" by having to work for
a
living indeed puts somewhat of a dammper on the radio times, just
to
name one. Only one interesting logging to report from here lately.
I
was quite surprised to hear KHOW, 670, Commerce City, CO from 0930
well past 1000 Central Time. KOA was in that morning as well. On a
final note, I've recently noticed some of the best times to ID the
XE's are at their sign on times if they're not 24 hrs....DO'H,
never
thought of that before. Enough for now. 73 to all you fellow


ultralight loggings

Tim Davisson
 

Here's my loggings from the last couple days on my SRF-59, barefoot,
all times EDT:

Fri. 9/19/08 950 WVTS/Charleston, WV, 7:24pm.
" " 1330 WVHI/Evansville, IL, 10:59pm, relgious.
Sat. 9/20/08 690 WELD/Fisher, WV, 7:57pm, satellite oldies.
" " 810 WMJH/Rockford, IL, 8:01pm, Spanish.
" " 1370 WGIV/Pineville, NC, 8:35pm, gospel.

Up to just 109 stations heard in 3 weeks of pretty casual listening.
Having lots of fun!

73's,

Tim, KD8GZ
Norton, Ohio (near Akron)


DX - Dawn Sept 20th

Paul Logan
 

Hi all,

a few nice ones this morning including a great catch of WMVP from Chicago on 1000 khz barefoot on the SRF39FP. The last three were only there with the 4 foot loop.

Heres what was heard

1000    WMVP Chicago, IL    06:53   
1030    WBZ Boston MA    07:10   
1050    WEPN  NYC    07:13   
1060    WBIX Natick MA    06:55   
1100    WTAM Cleveland OH    07:10   
1110    WBT Charlotte NC    07:05   
1120    KMOX St. Louis MO    07:15   
1160    WYLL Chicago, IL    07:28    *
1190    WLIB NYC, NY    07:05    *
1300    WOOD Grand Rapids, MI    07:10    *

 I also had a Quebec station on 1150 but not sure which one.

I've been a little casual about logging since I hit 300 in 30 days - better see how many stations I've actually heard on these little radios.

WMVP was a big shock - its a difficult channel being so close to 999 but there was ESPN as I stood by my window around dawn. had someone told me this was possible a year back I would have thought it impossible.

Paul Logan,
Lisnaskea, N. Ireland

Listening Homepage: http://geocities.com/yogi540/
Photos: http://www.flickr.com/photos/radiofotos/
Video: http://www.youtube.com/user/yogi540



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Re: High-Q Mini-Loop for Ultralights

Russ Edmunds <wb2bjh@...>
 

--- On Sat, 9/20/08, satya@... <satya@...> wrote:

From: satya@... <satya@...>
Subject: Re: [ultralightdx] High-Q Mini-Loop for Ultralights
To: ultralightdx@...
Date: Saturday, September 20, 2008, 9:02 PM






Hey Russ:

Mine was different than the one the Ebay seller has now. Mine was made
from 180/44 and cost $21. The 220/46 he has now probably has a bit better
Q across the band, but cost $30. I get the sense that he might make
whatever people want, so you might want to contact him if you're
interested in one like mine.

Kevin


The larger one listed he shows as 750 Q. The two smaller ones only 190, so I may indeed email him to see if he can do one more like yours. Thanks-


Russ Edmunds
Blue Bell, PA ( 360' ASL )
[15 mi NNW of Philadelphia]
40:08:45N; 75:16:04W, Grid FN20id
<wb2bjh@...>
FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15'
AM: Modified Sony ICF 2010 barefoot


This Group is Amazing

kirk74601 <kirk74601@...>
 

Greetings Fellow Ultralighters,

I continue to be amazed at the amount of cool info being posted here.
I'd like to comment to many members, but that might take a lot of
words! Congrats to Richard for hitting 300+ stations, and to all you
heavy-hitters here! Sometimes I feel like a snail when I compare my
numbers to many of you all. I didn't really start getting enthused
about ultralighting until around June. So far, using the E100 and the
SRF59,I've managed to log 164 stations. I'm already noticing the
difficulty is increasing unless there's some good
openings/propogation. Robert summed it it quite well; it just all
depends on many factors. Being "inconvienced" by having to work for a
living indeed puts somewhat of a dammper on the radio times, just to
name one. Only one interesting logging to report from here lately. I
was quite surprised to hear KHOW, 670, Commerce City, CO from 0930
well past 1000 Central Time. KOA was in that morning as well. On a
final note, I've recently noticed some of the best times to ID the
XE's are at their sign on times if they're not 24 hrs....DO'H, never
thought of that before. Enough for now. 73 to all you fellow radio
nuts from another one in Oklahoma.
Kirk Allen
Ponca City, OK
Eton E100, SRF59


Re: High-Q Mini-Loop for Ultralights

Russ Edmunds <wb2bjh@...>
 

AM: Modified Sony ICF 2010 barefoot

--- On Sat, 9/20/08, satya@... <satya@...> wrote:



Hi Russ and Huelbe:

That's the guy I did business with - quick shipment and a great coil.

Kevin

I'm wondering if there's any significant difference for our purposes between the two types he offers ( there sure is a per unit price difference <g> ).


Russ Edmunds
Blue Bell, PA ( 360' ASL )
[15 mi NNW of Philadelphia]
40:08:45N; 75:16:04W, Grid FN20id
<wb2bjh@...>
FM: Yamaha T-80 & Onkyo T-450RDS w/ APS9B @15'
AM: Sony ICF 2010 barefoot
Sony SRF-59 barefoot