[R-390] R390A Noise Floor and otherness

Tue Sep 11 18:24:48 EDT 2012

I'm always looking for a list of targets.  Is there a group where this stuff is posted one can join?

Cecil....

Sent from my iPad

On Sep 11, 2012, at 5:16 PM, Barry Williams <ba.williams at charter.net> wrote:

> Hi Chuck,
> 
> Great logs. I vote for some log postings.
> 
> Barry
> 
> Sent from my iPhone
> 
> On Sep 11, 2012, at 11:27 AM, chuck.rippel at cox.net wrote:
> 
>> If the receiver is working properly AND it has aged kindly, rotating the 
>> ANT TRIM control with no antenna attached will result in a noise peak.
>> 
>> When the receiver peaks on ITS OWN NOISE, you "have arrived."
>> 
>> Be careful setting the IF Gain pot !  Too much gain results in excess RX 
>> noise and unrecoverable audio !  There is a "sweet spot"
>> for setting the IF gain; I'm sure that technique is demonstrated in the 
>> videos.  Unfortunately, it takes test equipment to set that properly.
>> 
>> Tune 'em up now !   The season is approaching fast !  Who's planning on 
>> doing SWBC DX or MW DX besides me ?
>> 
>> Also, is anyone interested in seeing some of the loggings the SWBC heavy 
>> hitters are harvesting?  I can post them on the list or...?  Gives you 
>> some targets to go after.
>> 
>> Here is a recent example.  Go get 'em:
>> 
>> ETHIOPIA   5950   V.O. the Tigray Revolution.  First hrd w/simple HoA 
>> Washint flute
>> IS at 0252 under R. Taiwan Int.  In the clear when RTI went off between 
>> pgms at
>> 0258.  Canned echo ID by M, then M w/opening ID anmnt including apparent 
>> sked w/abt
>> a half dozen ments of "meterband" and website as www.dimtsiwoyane.com . 
>> More
>> Washint mx and RTI returned.  Finally diff. HoA mx at 0917.  Another 
>> song at 0921.
>> Vcl songs after 0326.  W anncr at 0336 but had weakened a lot by this 
>> time.  Nice
>> and clear when RTI off.  (9 Sept.)
>> 
>> ETHIOPIA   6110   R. Fana   Signal on the air at 0250:20.  OC till brief 
>> tone at
>> 0254:21, then chime IS.  0259 M anncr w/ID "?? Fana Broadcastings 
>> Corporation ??",
>> then another ID over instru. mx, followed by live M w/opening anmnts 
>> including at
>> least 2 more Fana Bdcsting Corp. IDs. and ment of radio until 0301. 
>> 0301 mx
>> bridge, coo-coo clock SFX and canned M anncr very briefly, and hammering 
>> on wood.
>> 0302-0306 lively instru. mx.  0306-0311 M vcls w/HoA mx.  0311-0318 tlk 
>> by live
>> studio M w/ID ".one nation, one ??, Fana Broadcasting Corporation." at 
>> beginning.
>> Ment of Somalia.  0318-0323 lively booming HoA vcl and choral mx. 
>> 0324-0325 canned
>> tlk by W in echo mixed w/mx.  0325-0343 discussion between live M and W 
>> anncrs
>> w/occas. instru. mx bridges.  0343 more HoA mx w/M vcl.  Of course the 
>> signal faded
>> and was pretty much inaudible by 0420.  Fair w/quick QSB.  A little slop 
>> QRM from
>> 6105.  (9 Sept.)
>> 
>> CHAD   6164.96   R. N'Djimena   Signal suddenly on at 0451:55 w/Hi-life 
>> African mx.
>> M anncr briefly at 0458 w.ment of N'Djimena, Africa.  Finally in the 
>> clear at 0458
>> w/Japan going off.  Tlk by M at 0501.  Really great mx.  0508 M anncr in 
>> FR
>> returned including couple quick "R. Diffusion Tchadienne" IDs.  (9 
>> Sept.)
>> 
>> PIRATE (EUROPE)   6285.4   R. Focus Int.   Noted as soon as I started 
>> the Perseus
>> recording at 0243 w/"Down Under" by Men at Work.  0307 "I'm Only Human" 
>> by Human
>> League.  0312 R. Mi Amigo theme, then M anncr briefly.  0332 "Nothings 
>> Going to
>> Break My Stride" by Mathew Wilder, then "Love Grows (Where My Rosemanry 
>> Goes" by
>> Edison Lighthouse.  Jingle at 0438 w/ment of International. Good at 0348 
>> on peak.
>> Decent signal at 0443, then M anncr w/e-mail addr repeated at 0445, then 
>> into "Who
>> Can It Be Now" by Men at Work. 0449 "Wishing" by A Flock of Seagulls. 
>> 0453 jingle
>> and back to mx. 0456:10 ID "This is Focus International...free radio". 
>> 0523 "Stray
>> Cat Strut" by Brian Setzer.  0526:45 anmnt mentioning "...shortwave 
>> band...",
>> followed by "All the Day and All the Night" by The Kinks, then "Elenore" 
>> by The
>> Turtles.  0615 "Band on the Run" by Wings, followed by "You Wear it 
>> Well" by Rod
>> Stewart, then "Baker Street" by Gerry Rafferty, and "Mr. Blue Sky" by 
>> ELO.  Fading
>> after that and lost audio by 0650.  Last saw the signal around 0745. 
>> Surprised to
>> find this here.  (9 Sept.)
>> 
>> No sign of R. 6150 on 6070.  CFRB was on 6069.96 and there was another 
>> signal on 6070
>> the entire time until I stopped the recording at 0952 which must be part 
>> of the CFRB signal.  (9 Sept.)
>> 
>> PERU??   4790.02   R. Vision (pres.)   Back on apparently.  First hrd 
>> carrier 2
>> days ago but no audio to speak of.  This morning, definite M in SP 
>> w/live preaching
>> at 0953, brief mx bridge at one point, then cont. tlk.  1004 audience 
>> noise.
>> Fairly strong but horribly distorted 'rumbling' audio.  Looked like 
>> there were
>> multiple carriers on the signal.  Could see at least 5 distinct peaks. 
>> Also
>> noticed most of the distortion was in the lower side.  In USB with the 
>> PSB shifted
>> away from the carrier, it was almost readable.  (9 Sept.)
>> 
>> 
>> Chuck Rippel
>> 
>> 
>> 
>> 
>> On Tue, Sep 11, 2012 at 12:03 PM, r-390-request at mailman.qth.net wrote:
>> 
>> 
>>> Today's Topics:
>>> 
>>>  1. Re: R-390A DIY alignment completed at last! (Roger Ruszkowski)
>>> 
>>> 
>>> ----------------------------------------------------------------------
>>> 
>>> Message: 1
>>> Date: Mon, 10 Sep 2012 19:16:01 -0400 (EDT)
>>> From: Roger Ruszkowski <flowertime01 at wmconnect.com>
>>> Subject: Re: [R-390] R-390A DIY alignment completed at last!
>>> To: r-390 at mailman.qth.net
>>> Message-ID: <8CF5DC16065254A-624-44279 at webmail-m057.sysops.aol.com>
>>> Content-Type: text/plain; charset="us-ascii"
>>> 
>>> 
>>> Frank,
>>> 
>>> Once you can hear all their is to hear, and have pushed the noise as 
>>> low as it will go, then readings from the test equipment are not of 
>>> any value. You do not listen to test equipment. You are just after 
>>> signals from the antenna.
>> ______________________________________________________________
>> R-390 mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/r-390
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:R-390 at mailman.qth.net
>> 
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html