Date   

DT-400W IF Filter Upgrades (was Sony ICF-E10W)

Gary DeBock
 

Hi Richard,
 
      Upgrade IF filters to improve selectivity must be designed for the Ultralight radio's actual IF, which is 450 kHz for the DT-400W and most other Ultralights.  There is a limited selection of 450 kHz upgrade filters, some of which could improve upon the stock DT-400W's selectivity.  Guy Atkins (a local Puyallup, WA resident with extensive IF filter experience) designed a modification last spring for the DT-200VX, which improved upon the stock selectivity significantly.  The same Murata 4-pole (I believe) 450 kHz filter would also improve the DT-400W's selectivity. But none of the 450 kHz IF filters would be nearly so effective as the 455 kHz IF filter we three (John, Guy and myself) have installed into the E100, according to Guy.
 
     Upgraded IF filters, by themselves, provide selectivity improvements, but usually no benefit in signal- pulling power.  Larger and more effective loopsticks, by themseleves, provide great increases in sensitivity, but no benefit in selectivity.  But when they are combined together, the DX effectiveness is overwhelming, such as in the modified E100 that John, Guy and I are using.  The E100's 455 kHz IF made it possible for Guy to choose an extremely effective Murata filter (the same one used in the Eton E1).  The experimental invention of the "Slider" loopstick happened about the same time, making the E100 ultra-sensitive.  Full articles about this "wildcat" E100 will appear shortly in the AM-DX club bulletins.  My own model has logged 30 TP stations in only three months, before the DX season even starts.  We hope you all will have so much fun!
 
     73,  Gary




SONY ICF-E10W

lrdheat
 

Dear Folks,
 
I have a SONY ICF-E10W that I purchased in 1983 or 84. A google search revealed a picture of the radi (click on the image for a larger view):
 
 
It is about the same size as a Sangean 200 or 400 series radio; perhaps a little slimmer. The radio uses 2 AAA's, and lasts about 40 hours. It is mono, speakerless, and analog. What I find that is remarkable is that (with a finger placed on the right portion of the thin bottom side of the radio) the radio is notably more sensitive than the 200's and 400's, particularly above 800 KHz, and is exceptional with regard to selectivity, and dealing with weak signals in the shadow of a local. For example, during the daytime, 11 KW KDRY in San Antonio is clear with little trace of a 1 KW station in Nuevo Laredo (I am in Laredo,TX) on the E10W. The SONY ICF-S5W and SONY ICF-EX5 can also hear KDRY with little QRM; the Sangean PR-D5 hears KDRY with a bit more QRM from the local on 1090. The Sangean 200 and 400 ulr's cannot discern KDRY through the 1090 splatter. Another example is nighttime: On the E10W, I can hear a Mexican on 1500, and occasionaly KSTP, Minneapolis 1500 with no QRM from our 1KW local on 1490 KHz. Indeed, at night, I can hear 1500 in the clear on a full 360 sweep as opposed to a small portion of a 360 sweep. My 200 and 400's cannot discern a station under the 1490 splatter. The Sangean PR-D5 cannot produce a null on 1500 from my location as well. The S5W and EX5 can hear 1500 with the EX5 producing a full 360 sweep of availability of 1500, the S5W nearly so.
 
If anybody runs into this set, it is exceptional.
 
Does anybody know if the DT-400W can accept a 6 gang? filter instead of a 2 gang (is that the correct term?) stock? How about the 2.6KHz wide Murata? Would either of these filters fit, but perhaps, reduce the native sensitivity of the 400, or for that matter, a PR-D5?
 
Richard "Heatwave" Berler


[IRCA] Grayland logs from August 19, 20, 21, 22

John H. Bryant <bjohnorcas@...>
 

Sorry,

I meant to have sent these out earlier. All receptions were on an E100 modified with a 2.6 kHz Murata IF filter and connected directly to a Wellbrook Phased Array pointed either NW to Asia or SW to Australia.


567 JOIK, NHK1 Sapporo Japan      8/22/2008 1226 NHK1 //594
648 V. of Russia Ussur, Sib. Russia 8/21/2008 1300 Russian M. approaching TOH; Bells of Moscow?
693 JOAB Tokyo Japan                   8/19/2008 1145 NHK 2 EE Lessons
729 5RN Adelaide Australia           8/21/2008 1331 "ABC News" with M+W
738 Taiwan Fish. Baisha Taiwan    8/21/2008 1307 CC talk // weaker 1143
747 JOIB NHK2 Sapporo Japan        8/20/2008 1154   Fem in JJ //828
801 KTWG Agana Guam                 8/22/2008 1328 Franchise Christian programs change at 1330
819 KCBS Pyongyang North Korea 8/21/2008 1151 Hrd. On 818. Typical NK martial orchestral music
837 CNR5? Zangban? China             8/21/2008 1125 Man Talk. Prob. new station to Taiwan from Fujian
855 4QB Pialba Australia                8/22/2008 1340 // stronger 1548 with Local ABC net programming
873 JOGB NHK2 Kumamoto Japan 8/21/2008 1220 Int. EE lessons //774
891 JOHK Sendai Japan                  8/19/2008 1323 NHK1 Talk//594
918 CNR2 China                             8/20/2008 1123   CC Talk, paralleled later
936 Anhui RGD Hefei China           8/22/2008 1234 CC Talk
954 JOKR Tokyo Japan                   8/20/2008 1240   Olympics in JJ + Commercials
963 CRI RR Svc Manchuria? China  8/19/2008 1202 News in RR: First China
981 CNR1 Multiple Sites China      8/20/2008 1125   M+W // 5030
972 HLCA Dangjin South Korea      8/19/2008 1207 Talk in KK ID @ 1300
1008 JONR Osaka Japan                 8/20/2008 1242   Male in JJ
1017 CRI KK Svc Changchun China  8/19/2008 1219 Talk in Korean
1035 HLCP P'ohang South Korea    8/19/2008 1307 KBS1 //1305
1044 CRI JapanSvc Changzhou China 8/20/2008 1127   M in JJ
1053 Jam Synchro Multiple Sites South Korea  8/19/2008 1230 Buzzzzz
1062 HLKQ Cheongju South Korea 8/20/2008 1245   Olympics in KK //972 (!)
1098 MIBC Majuro Marshall Isl's    8/20/2008 1129    Cont. Isl. Music Slight under mod
1107 2EA Sydney Australia             8/20/2008 1350   DU phone interview
1143 Taiwan Fish. Baisha Taiwan   8/21/2008 1310 CC talk // stronger 738
1143 4HI Emerald Australia              8/21/2008 1344 IDs, slogans, Oldies
1179 JOOR Osaka Japan                 8/20/2008 1248   M+W in JJ. Hrd on 1178
1206 Yangbian RGD Yanji China    8/20/2008 1200   KK Svc. Caught TOH on 1205.96
1215 CNR2 Shenyang China            8/19/2008 1241 CC Talk
1224 JOJK NHK1 Kanazawa Japan  8/20/2008 1309   Olympics in JJ //594
1242 JOLF Tokyo Japan                  8/19/2008 1232 JJ Talk
1269 HBC Synch Obihiro ? Japan    8/20/2008 1137   Olympics in JJ //1287
1278 JOFR Fukuoka Japan                 8/21/2008 1234 Olympic coverage JJ. Also maybe Heibei
1287 JOHR Sapporo Japan             8/19/2008 1234 JJ Talk
1305 HLSV Uljin South Korea        8/19/2008 1307 KBS1 //1035
1314 JOUF Osaka Japan                     8/22/2008 1248 JJ Romantic Play (Soap Opera)
1323 GovoritPekin Shuanghyashan? China 8/21/2008 1158 Quiet mx to TOH, then Russian male ann.
1332 JOSF Nagoya Japan               8/19/2008 1310 JJ Talk
1350 JOER Hiroshima Japan           8/19/2008 1312 JJ Talk
1377 CNR1 Shijiazhuang? China   8/20/2008 1200   Olympics in CC //5030
1386 NHK2 Synchro Japan             8/19/2008 1243 EE Lesson
1422 JORF Yokohama Japan            8/19/2008 1314 JJ Talk 50th TP
1440 JOWF Sapporo Japan            8/20/2008 1321   Completely on top at dawn! JJ talk
1475 RTM Labuan Kota Kinabalu East Malaysia 8/21/2008 1144 Hrd. On 1474 to miss 1476 QRM. Slight undermod
1503 JOUK NHK1 Akita Japan        8/20/2008 1140   Olympics in JJ //594//1287!!
1512 2RN Newcastle Australia     8/19/2008 1330 Aussie Talk
1548 4QD Emerald Australia         8/20/2008 1325   Olympics in Aussie
1557 WYFR Fam.Rad Kouhu Taiwan 8/22/2008 1258 Hymn, Fam.Radio TS, then CC talk by fem
1566 HLAZ* Cheju Isl.* South Korea*  8/21/2008 1241 Heard Barefoot: T615; Was S-8 on 313e
1575 VOA Ayutthaya Thailand     8/19/2008 1209 Talk in lang: First Thai
1593 CNR1 Changzhou China        8/20/2008 1150   M+W //5030
_______________________________________________
IRCA mailing list
IRCA@...
http://montreal.kotalampi.com/mailman/listinfo/irca

Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers

For more information: http://www.ircaonline.org

To Post a message: irca@...


Re: Robert Ross 30 Day Challenge

bbwrwy
 

Congratulations Allen, logging 300 stations in only a few days is
quite an accomplishment. I'm still hoping to log 300 within six
months. Maybe I need to come to the shore of Newfoundland. Best
wishes and good DX.

Richard Allen.


Results of hunting for TP's

Dennis Gibson <wb6tnb@...>
 

Is it possible that at the beach starting about half an hour before
sunrise I heard more than two dozen TP carriers on a barefoot Sony
2010? They were all pretty weak and none yielded any audio. I started
at the top of the band, which seemed logical at the time. Looking back
at it that was possibly a serious mistake. Which end should I start
at? I listened from 1310 to 1342; comparing that to other logs that's
too late.

At home about an hour before sunrise I had a huge carrier on 549 on
the barefoot 2010 but there was little to no audio. I heard what
sounded like some sort of Oriental music. 550 was weaker but had
plenty of audio. I didn't even try 549 on the DT-400W at home because
the 2010 could barely separate them and a DT-400W isn't going to
separate two stations 1 KHz. apart. I keep seeing logs that say a
carrier was quite strong but there was little or no audio. What would
cause that?

I think I need to start earlier next time. I thought Gary said be
there half an hour before sunrise, which is what I did. By that time
the huge carrier on 549 was pretty weak.

73


Re: Results of hunting for TP's

Gary DeBock
 

Hi Dennis,
 
     The TP's this morning sounded pretty anemic to me, compared to yesterday.  When chasing TP's with stock Ultralights, you are really at the mercy of propagation.  If you had tried yesterday (like Colin in Victoria, BC, who was thrilled to log JOIB-747 and JOUB-774 for his first stock Ultralight TP's), you might have scored big.
 
     Anyway, you'll have many more great chances coming up!  When using the 2010 as a spotting receiver, I put all the powerhouse TP frequencies in the 2010's upper memory buttons, in SSB mode.  You can check all of them for carrier strength within a minute.  If they all sound hopeless 30 minutes before sunrise, propagation is probably in the tank.  For me, that means pulling the switch.
 
     If your frequencies like 747, 774 and 828 show some fairly strong SSB carriers 30 minutes before sunrise, head for that beach!  Don't tune from the top of the band (or bottom of the band), just keep checking your Powerhouse TP frequencies in memory, and wait for one of them to come up to audio level.  Then, when audio is sufficiently strong on the 2010, go get them with your Ultralight.
 
     There is no doubt that you will have many chances to log booming TP's this fall, Dennis!  Follow the steps above, and you'll nail them very soon.
 
     73,  Gary   




hrd on 1540 last night in Ohio

Tim Davisson
 

Guys...All I could hear on 1540 last night was
KXEL in Waterloo, Iowa and a super-strong CHIN
in Toronto...with SS music...some of which
*sounded* like it was RnB.

CHIN sounded like they were a semi-local...blasting
in here.

No sign of Bahamas.

73's,

Tim, KD8GZ
Norton, Ohio


Re: Robert Ross 30 Day Challenge

Gil Stacy
 

Way to go, Allen!
Gil


Re: Robert Ross 30 Day Challenge

Gil Stacy
 

"Gill Stacy is involved in that and could get you started. I wonder
if you could hear 300 in 30 days on a crystal set."

Evan Haydon of Lincoln NE logged 302 stations in this year's Crystal
Radio Contest. For the past 3 contests he has logged over 250
stations per year. Being in the middle US helps, but dogged
determination, time at the set both listening and developing it have
paid off handsomely for Evan. BTW, the time period is only 10 days.
Most I've logged during the same contest has been 178 on my xtl set.
There are not (m)any domestic stations to the east of me on the Ga.
coast. ;) www.crystalradio.us

73 Gil


Hunting for TP

Dennis Gibson <wb6tnb@...>
 

In a little while (it's about an hour before sunrise) I'll be heading
for the beach (less than 5 minutes away on foot) with my stock Sony
2010 as a spotting receiver and my Sangean DT400W looking for TP. It
will be my first attempt.

At home with the 2010 barefoot I have fairly weak carriers on 972 and
774, and a huge carrier on 549 (7-8 on the 2010's signal strength
display.) There's a little audio on 549 but not enough for an ID. I
didn't expect to be able to hear any carriers at home.

73


Re: Robert Ross 30 Day Challenge

robert ross
 

At 07:12 PM 9/6/2008, Allen Willie wrote:


Hi Guys,

Good transatlantic DX in tonight early on . Logged 3 more for the Robert
Ross challenge to up my total to the Magic Number # 300 stations
and in just 13 days worth of Dxing the challenge.

My final station logged for # 300 was on 756 khz, namely R.
Euskadi Bilbao, Spain

Thanks to Robert Ross and the Ultralight Comittee for coming up with a
great idea for all of us to strive for. Really enjoyed the challenge and
looking forward to cheering on anyone else who may be attempting it now
and in the future.

Regards

Allen Willie
St. John's, Newfoundland
SRF-M37V SRF-39FP barefoot
Hello Allen:

You know.....way back in Jan/2008 before this award was even thought
of...and when I was trying to hear 300 Stations in the First month of
having my SONY SRF-59....just fort "Something to Do"......I never dreamed
of the Possibilities with one of these Little Sets! I didn't even know if I
would be able to Log 300 Stations in my Lifetime on One of these things,
let alone in 30 Days!! As the Month progressed, it became shockingly
evident that my goal was possible, and with some work could be attained.

You Allen, have taken the Earning of this Award to NEW HEIGTHS!!! Not only
have you smashed the time period barrier....you have logged 300 Stations
that "ALL ULR DX'ers" would be Proud to add to their Logbooks!!

I am honoured to have you Allen Willie......added to the "300 in 30" Club,
and hope your efforts inspire a lot of other ULR Dxers to try for the award
as well.

Congratulations Allen on an Amazing Feat with a Pocket Radio that nobody
would have dreamed could hear so much!!

All I can say Allen is .......WOW!!!

73....ROB.




Robert S. Ross VA3SW
Box 1003, Stn. B.
London, Ontario
CANADA N6A5K1

Antique/Vintage Radio Enthusiast
Amateur Radio Stations VA3SW/VE3JFC

Defy Physics.....Play Table Tennis!! (Ping Pong with an Attitude)
«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»¥«¤»§«¤»¥«


Bahamas on 1540

Allen Willie
 

Hi Everybody,
 
I also just heard  Bahamas coming in on 1540 on my ultralight and bigger rig as well, mentions of Bahamas and current weather and forecast . Good signal and first time i've ever heard it in here. Thanks for the tip John   .....Country #  97  Overall on AM 
Country # 62 On  ULR's on AM
 
 
Allen Willie  VO1-001-SWL
St. John's, Newfoundland


Yahoo! Canada Toolbar : Search from anywhere on the web and bookmark your favourite sites. Download it now!


Re: International MW DXing with Ultralights

Steve Ponder <n5wbi@...>
 

I can hear Radio Reloj under WWL 870 almost every night.
Discovered them while listening to WWL's coverage of
Gustav. Had never heard a RR outlet there before.

73 & Great DX,

Steve N5WBI
Houston TX


Bahamas 1540 In Tonight

John Cereghin <pastor@...>
 

Getting Bahamas-1540 in well, with R&B-type mx, IDs as "National Voice of the Bahamas" and "Bahamas Radio Network", also with some hurricane info.  Have them barefoot on the SRF-59 at 2015 EDT.

John Cereghin
Smyrna DE



Re: Robert Ross 30 Day Challenge

John H. Bryant <bjohnorcas@...>
 

Fabulous, Allen!!!!

I'm only half kidding when I ask you if you were aware of the hobby of making/using very sophisticated crystal sets... Gill Stacy is involved in that and could get you started.  I wonder if you could hear 300 in 30 days on a crystal set.  If you do, I guarantee that the Awards Committee would get you a real trophy and name it after you, too!

In the mean time, you continue to set the bar very high for the rest of us.  BRAVO and WELL DONE!!


John Bryant








At 04:12 PM 9/6/2008 -0700, you wrote:

 
 
Hi Guys,
 
Good transatlantic DX in tonight early on . Logged 3 more  for the Robert Ross challenge to up my total to the Magic Number  #  300 stations and  in  just 13 days worth of Dxing the challenge.
 
The atmospheric conditions for the most part were excellent the past while which really helped.
 
 With a bit less sleep and  quite a few new  stations to add to my overall list , I can certainly attest to the folks thinking of  purchasing an ultralight radio, these  tiny machines certainly have a knack for pulling in long distance stations.
 
My final station logged for # 300 was on  756 khz,  namely  R. Euskadi  Bilbao, Spain
 
Thanks to Robert Ross and the Ultralight Comittee for coming up with a great idea for all of us to  strive for.  Really enjoyed the challenge and looking forward to cheering on  anyone else who may be attempting it now and in the future.
 
Regards
 
Allen Willie
St. John's, Newfoundland
SRF-M37V   SRF-39FP  barefoot


[] Yahoo! Canada Toolbar : Search from anywhere on the web and bookmark your favourite sites. Download it now!


Robert Ross 30 Day Challenge

Allen Willie
 

 
 
Hi Guys,
 
Good transatlantic DX in tonight early on . Logged 3 more  for the Robert Ross challenge to up my total to the Magic Number  #  300 stations and  in  just 13 days worth of Dxing the challenge.
 
The atmospheric conditions for the most part were excellent the past while which really helped.
 
 With a bit less sleep and  quite a few new  stations to add to my overall list , I can certainly attest to the folks thinking of  purchasing an ultralight radio, these  tiny machines certainly have a knack for pulling in long distance stations.
 
My final station logged for # 300 was on  756 khz,  namely  R. Euskadi  Bilbao, Spain
 
Thanks to Robert Ross and the Ultralight Comittee for coming up with a great idea for all of us to  strive for.  Really enjoyed the challenge and looking forward to cheering on  anyone else who may be attempting it now and in the future.
 
Regards
 
Allen Willie
St. John's, Newfoundland
SRF-M37V   SRF-39FP  barefoot


Yahoo! Canada Toolbar : Search from anywhere on the web and bookmark your favourite sites. Download it now!


Re: Robert Ross challenge

John Cereghin <pastor@...>
 

Allen,

I'm also at 281 stations but your log is quite a bit more interesting than mine right now- I'm only a 6 countries and 27 states!

John Cereghin
Smyrna DE

Allen Willie wrote:

 
 
Hi Guys,
 
Things were a bit tougher stations count  with the Robert Ross Challenge last night  with the noise level and A Index a bit higher and even higher today. Did manage to log a new country or two though on ultralight up to 281 stations now with 19 to go.
 
 
A few logs from last night:
 
1368 khz - Galei Zahel , Shivta Israel   9/3/08  23:51 UTC  w/ Hebrew announcements, a variety of song vocals in Hebrew and ID ; fair   *** NEW COUNTRY *** # 57 on ULR
 
 702 khz - RTM C  - Sebaa-Aouin Morocco   9/3/08  23:45 UTC  w/ arabic chants and talk ; good
 
1620 khz - WDHP - Frederikstad, US Virgin Islands   9/4/08  3:20 UTC  w/ Lionel Richie song ; island type song talk ,ID  fair  *** NEW COUNTRY # 58 on ULR
 
1062 khz - IRIB Kerman Iran   9/3/08  22:35 UTC  w/ persian chanting and talk ; fair
 
1467 khz - IRIB  Isfahan, Iran  9/4/08  00:15 UTC  w/ persian chants and talk ; fair
 
73
 
Allen Willie
St. John's, Newfoundland
SRF-M37V barefoot
 
 




Re: International MW DXing with Ultralights

satya@...
 

Yup! The SRF-59 was inside a passive loop, but RVC had taken the channel
over, so it would have been receivable barefoot that night.

Kevin

Thanks, Kevin,

Didn't you also hear RVC, Turks and Caicos???

John B.






At 11:34 AM 9/6/2008 -0700, you wrote:

Hey John:

A couple years ago I heard Radio Progresso on top of 900 khz - it was on
the Sony 7600GR, but would have been heard on just about anything. That
was a one-off, but shows that these signals do get through. I was just
after local sunset, when things like that from the East seem to make
there
way out here.

Kevin

Richard,

Thanks very much for that report on Cubans heard in the center of the
country.... I'll definitely include that in the tip sheet.

John B.


Re: International MW DXing with Ultralights

John H. Bryant <bjohnorcas@...>
 

Thanks, Kevin,

Didn't you also hear RVC, Turks and Caicos???

John B.






At 11:34 AM 9/6/2008 -0700, you wrote:

Hey John:

A couple years ago I heard Radio Progresso on top of 900 khz - it was on
the Sony 7600GR, but would have been heard on just about anything. That
was a one-off, but shows that these signals do get through. I was just
after local sunset, when things like that from the East seem to make there
way out here.

Kevin

> Richard,
>
> Thanks very much for that report on Cubans heard in the center of the
> country.... I'll definitely include that in the tip sheet.
>
> John B.
>
>


Re: International MW DXing with Ultralights

satya@...
 

Hey John:

A couple years ago I heard Radio Progresso on top of 900 khz - it was on
the Sony 7600GR, but would have been heard on just about anything. That
was a one-off, but shows that these signals do get through. I was just
after local sunset, when things like that from the East seem to make there
way out here.

Kevin

Richard,

Thanks very much for that report on Cubans heard in the center of the
country.... I'll definitely include that in the tip sheet.

John B.