[Premium-Rx] Re: Premium-Rx Digest, Vol 24, Issue 7
IPAssets
triodes at sbcglobal.net
Tue Dec 7 16:02:29 EST 2004
Fred
But when are us receiver nuts gonna see the next edition of your book? That is the big question.
John England
Fred Osterman <osterman at DXing.com> wrote:
7. FCC Remote Control receivers (Geoff Fors)Geoff,When you catch that book borrowing "varmint" see page 221.Also . . . Do you remember which consumer Icom receivers were in use at the FCC remote station?Just curious.73sFred Osterman
premium-rx-request at ml.skirrow.org wrote:
Send Premium-Rx mailing list submissions to premium-rx at ml.skirrow.orgTo subscribe or unsubscribe via the World Wide Web, visit http://ml.islandnet.com/mailman/listinfo/premium-rxor, via email, send a message with subject or body 'help' to premium-rx-request at ml.skirrow.orgYou can reach the person managing the list at premium-rx-owner at ml.skirrow.orgWhen replying, please edit your Subject line so it is more specificthan "Re: Contents of Premium-Rx digest..."Today's Topics: 1. Re: R390A (w3jn) 2. R-390A SSB Converter (Geoff Fors) 3. Re: R-390A SSB Converter (Steve Stutman) 4. Off Topic Subject thread: R-390 (Greg Bailey) 5. Shanghai receiver (Geoff Fors) 6. Re: R-390A SSB Converter - Mixer - DSP (Rodney Bunt) 7. FCC Remote Control receivers (Geoff Fors) 8. Re: FCC Remote Control receivers (Ben Dover)----------------------------------------------------------------------Message: 1Date: Mon, 06 Dec 2004 17:54:10 -0500From: w3jn <w3jn at direcway.com>Subject: Re: [Premium-Rx]
R390ATo: wglevy <levyfiles at att.net>, Premium RX <premium-rx at ml.skirrow.org>Message-ID: <005401c4dbe6$84314900$a2741345 at IRUEL>Content-Type: text/plain; charset="iso-8859-1"The Hammarlund HC-10 will work, as will one of those old Central Electronics Sideband Slicers. Actually these are pretty nice units because they use phasing to eliminate the opposite sideband - and they have notch filters built in to get rid of adjacent carriers.Not the quality of a nice TMC converter but better audio and just as suitable, in my book.73 John ----- Original Message ----- From: wglevy To: Premium RX Sent: Monday, December 06, 2004 12:22 AM Subject: [Premium-Rx] R390A Gents The R390A always had an outboard SSB converter. I am searching for one if you know of any on the loose. Also, any thoughts on whether the Hammerlund HC-10 SSB Converter might be pressed into service? Thanks, Bill N2WL------------------------------------------------------------------------------
_______________________________________________ Premium-Rx Mailing List To Post: premium-rx at ml.skirrow.org For Info: http://ml.islandnet.com/mailman/listinfo/premium-rx Visit the Website: http://kahuna.sdsu.edu/~mechtron/PremRxPage/-------------- next part --------------An HTML attachment was scrubbed...URL: http://ml.islandnet.com/pipermail/premium-rx/attachments/20041206/0b1c5fb2/attachment-0001.html------------------------------Message: 2Date: Mon, 6 Dec 2004 16:16:54 -0800From: "Geoff Fors" <wb6nvh at mbay.net>Subject: [Premium-Rx] R-390A SSB ConverterTo: <premium-rx at ml.skirrow.org>Message-ID: <002601c4dbf2$0f057140$064c5142 at x8l5q1>Content-Type: text/plain; charset="iso-8859-1"Well, R-390 stuff is off topic but begs for further details...The Central Electronics Slicer works well but has no audio stage and must be tacked in to the host receiver's audio system. This is somewhat of a nuisance on many receivers but not hard on the 390 and 390A. The Slicer works on other IF's too,
such as 500 KHz in the 51J-4, but if I remember correctly, I had to use the accessory broadband mixer to do that.The Hammarlund adapters are essentially the power supply and IF strip out of an HQ-170 or 180. In some cases, I have seen them sell for more than the whole receiver, which answers the riddle of "when is half a receiver worth more than a whole one ? "One of the nicer SSB adapters is the smaller Technical Materiel Corporation unit, but those have become quite scarce in recent years.I admit to once taking the remains of an SSB CB radio and running the 455 KHz IF signal out of the R-390A into the CB radio's IF stage and using that as the adapter. And as Monty Python's Flying Circus would say, "Now for something completely different:" An SX-88 recently went for $ 8,000 on the e-place, which is less than one went for last year. You could buy two Harris 590A's and some Racal gear for dessert at that price level. Premium receivers are becoming a bargain !Geoff
ForsWB6NVH-------------- next part --------------An HTML attachment was scrubbed...URL: http://ml.islandnet.com/pipermail/premium-rx/attachments/20041206/ba23cc7d/attachment-0001.html------------------------------Message: 3Date: Mon, 06 Dec 2004 19:24:39 -0500From: Steve Stutman <steve at oceanrobots.net>Subject: Re: [Premium-Rx] R-390A SSB ConverterTo: Geoff Fors <wb6nvh at mbay.net>Cc: premium-rx at ml.skirrow.orgMessage-ID: <41B4F847.1070909 at oceanrobots.net>Content-Type: text/plain; charset=us-ascii; format=flowedPerhaps this SX-88 came with grilled cheese?74,SteveGeoff Fors wrote:
Well, R-390 stuff is off topic but begs for further details... The Central Electronics Slicer works well but has no audio stage and must be tacked in to the host receiver's audio system. This is somewhat of a nuisance on many receivers but not hard on the 390 and 390A. The Slicer works on other IF's too, such as 500 KHz in the 51J-4, but if I remember correctly, I had to use the accessory broadband mixer to do that. The Hammarlund adapters are essentially the power supply and IF strip out of an HQ-170 or 180. In some cases, I have seen them sell for more than the whole receiver, which answers the riddle of "when is half a receiver worth more than a whole one ? " One of the nicer SSB adapters is the smaller Technical Materiel Corporation unit, but those have become quite scarce in recent years. I admit to once taking the remains of an SSB CB radio and running the 455 KHz IF signal out of the R-390A into the CB radio's IF stage and using that as the adapter. And as Monty Python's
Flying Circus would say, "Now for something completely different:" An SX-88 recently went for $ 8,000 on the e-place, which is less than one went for last year. You could buy two Harris 590A's and some Racal gear for dessert at that price level. Premium receivers are becoming a bargain ! Geoff ForsWB6NVH------------------------------------------------------------------------_______________________________________________Premium-Rx Mailing ListTo Post: premium-rx at ml.skirrow.orgFor Info: http://ml.islandnet.com/mailman/listinfo/premium-rxVisit the Website: http://kahuna.sdsu.edu/~mechtron/PremRxPage/
------------------------------Message: 4Date: Mon, 06 Dec 2004 16:28:48 -0800From: Greg Bailey <gbailey at mail.sdsu.edu>Subject: [Premium-Rx] Off Topic Subject thread: R-390To: <premium-rx at ml.skirrow.org>Message-ID: <6.0.0.22.2.20041206162115.01d9cf00 at mail.sdsu.edu>Content-Type: text/plain; charset="us-ascii"; format=flowedGentlemen:In respect to our membership, the R390 thread needs to be taken off-line. I admit I have found the subject of interest, but pursuant to our policy, this is not the venue.Thank you for your cooperation.Greg and Jan------------------------------Message: 5Date: Mon, 6 Dec 2004 16:33:26 -0800From: "Geoff Fors" <wb6nvh at mbay.net>Subject: [Premium-Rx] Shanghai receiverTo: <premium-rx at ml.skirrow.org>Message-ID: <003901c4dbf4$5eff2860$064c5142 at x8l5q1>Content-Type: text/plain; charset="iso-8859-1"Thanks to Odd-Jorgen, Peter and Dave and others who took the trouble to identify the mystery receiver from my earlier posting, regarding Station XSG, Shanghai. It
turns out to be the JRC NCG-95 Telecontroller.Apparently "Telecontroller" means remote control, so I am assuming the actual receiver end is somewhere else (a certain varmint who isn't on this list borrowed my Osterman book and has yet to return it...)By the way, a recent visit to the Livermore, California FCC monitoring facility turned up a completely remote controlled, downsized, unmanned facility using Icom consumer grade HF receivers tied to phone line modems for remote control. No more live operators and no more Watkins Johnson 8700 series receivers. For some years the staff had been keeping the WJ sets going by cannibalizing some, to keep the others running. Geoff Fors-------------- next part --------------An HTML attachment was scrubbed...URL: http://ml.islandnet.com/pipermail/premium-rx/attachments/20041206/8c076e52/attachment-0001.html------------------------------Message: 6Date: Mon, 6 Dec 2004 16:41:19 -0800 (PST)From: Rodney Bunt <rodney_bunt at yahoo.com>Subject: Re:
[Premium-Rx] R-390A SSB Converter - Mixer - DSPTo: Geoff Fors <wb6nvh at mbay.net>, premium-rx at ml.skirrow.orgMessage-ID: <20041207004120.18322.qmail at web13925.mail.yahoo.com>Content-Type: text/plain; charset=us-asciiGeoff,You could use a mixer to get a 12kHz IF out to your PC sound card and use any number of Softwaredecoders, you can get SSB or ECAM detection, RTTY, etc. etc. etc.Have alook at this pagehttp://home.t-online.de/home/sat-service/sat/DRM/DRM.htmsee the Universal DRM- miniature mixer unit (surface mount) one page down.It is aimed at DRM (Digital Radio) but you need a "WIDE IF" maybe you could get by with the IFbandwidth on 8kHz for DRM. Anyway the mixers are SMALL, some crystal locked, or you can get thetunable ones, for those whose IF is aligned to the XTL filter etc....Here is a site for realy cool decoding software, http://www.cam.org/~noelbou/RxPlus/index.phpIt supports RTTY, PSK31, HF-FAX and SSTV as well as ECAM and SSB, it has some clever noisereduction processing
that realy cleans up SW BC listening, there are some Demo Audio files forlistening to the effects, turned on and off etc. You don't have to yuse the Radio remote controlcomponent just the audio processing part.Regards,RodneyVK2KTZ --- Geoff Fors <wb6nvh at mbay.net> wrote:
Well, R-390 stuff is off topic but begs for further details...The Central Electronics Slicer works well but has no audio stage and must be tacked in to thehost receiver's audio system. This is somewhat of a nuisance on many receivers but not hard onthe 390 and 390A. The Slicer works on other IF's too, such as 500 KHz in the 51J-4, but if Iremember correctly, I had to use the accessory broadband mixer to do that.The Hammarlund adapters are essentially the power supply and IF strip out of an HQ-170 or 180.In some cases, I have seen them sell for more than the whole receiver, which answers the riddleof "when is half a receiver worth more than a whole one ? "One of the nicer SSB adapters is the smaller Technical Materiel Corporation unit, but those havebecome quite scarce in recent years.I admit to once taking the remains of an SSB CB radio and running the 455 KHz IF signal out ofthe R-390A into the CB radio's IF stage and using that as the adapter. And as Monty Python's Flying Circus
would say, "Now for something completely different:" AnSX-88 recently went for $ 8,000 on the e-place, which is less than one went for last year. Youcould buy two Harris 590A's and some Racal gear for dessert at that price level. Premiumreceivers are becoming a bargain !Geoff ForsWB6NVH> _______________________________________________Premium-Rx Mailing ListTo Post: premium-rx at ml.skirrow.orgFor Info: http://ml.islandnet.com/mailman/listinfo/premium-rxVisit the Website: http://kahuna.sdsu.edu/~mechtron/PremRxPage/
__________________________________ Do you Yahoo!? The all-new My Yahoo! - Get yours free! http://my.yahoo.com ------------------------------Message: 7Date: Mon, 6 Dec 2004 21:08:57 -0800From: "Geoff Fors" <wb6nvh at mbay.net>Subject: [Premium-Rx] FCC Remote Control receiversTo: <premium-rx at ml.skirrow.org>Message-ID: <002901c4dc1a$db92ade0$90485142 at x8l5q1>Content-Type: text/plain; charset="iso-8859-1"I may not have been clear in my recent posting and some off-list correspondence suggests a further comment. As far as I know, the Watkins Johnson equipment at FCC was not remote controlled although there is the capability for doing so on certain models and apparently that capability was occasionally used. The present Icom equipment at Livermore is all remotely operated as is the antenna information for DF purposes. This allows any office to dial up the station and control one of the receivers. I seem to recall something like 5 receiving positions.I no longer have a contact at FCC so
at the present time I cannot get info on the remote control software for W-J.If it's not too off-topic, I would like to mention what the monitoring vehicles used. As of three years ago they were still using WJ 8700 series receivers under the dash of various SUV's which have custom made fiberglass roof sections which conceal a proprietary DF antenna. Traditionally, they would make an evidentiary record of violations by using a large VCR/camcorder camera trained on the display of the receiver with the audio fed to the tape and a time hack added to the screen. These VCR's were those old top-loader types, Beta and VHS. The previous vehicles were Chevrolet Caprices which also had custom made fiberglass roofs covered with vinyl top material, and in that case the passenger side seat was removed to allow the W-J receiver equipment rack and the video tape recorder. To my knowledge the Caprices were all sold a few years ago, at least in the west coast area. The antennas, still in the
cars because they were the roof, were disabled by applying 120V AC to the active components. A shame for something which probably cost more than the cars did. The present inventory of Watkins Johnson receivers seems to be reserved for keeping the mobile and special projects fleet going. There are also some other special RV type vehicles with much larger and newer assortments of gear inside, these after 9/11 are becoming rather classified although they can be seen at large events such as inaugurations, visits by foreign dignitaries, and so forth.If I can learn what remote control software they used on the Watkins Johnson equipment, I'll post details to the list.Geoff Fors-------------- next part --------------An HTML attachment was scrubbed...URL: http://ml.islandnet.com/pipermail/premium-rx/attachments/20041206/bbad2823/attachment-0001.html------------------------------Message: 8Date: Tue, 07 Dec 2004 12:58:25 -0600From: Ben Dover <quixote2 at ix.netcom.com>Subject: Re:
[Premium-Rx] FCC Remote Control receiversTo: "Geoff Fors" <wb6nvh at mbay.net>,premium-rx at ml.skirrow.orgMessage-ID: <3.0.5.32.20041207125825.011657a8 at pop.ix.netcom.com>Content-Type: text/plain; charset="us-ascii"Hello Geoff.Re. FCC monitoring vehicles;A few years back at the Madison, WI "Broadcaster's Clinic", the Chicago FCC office was kind enough to exhibit one of thier mobile monitoring units.The vehicle itself was a Ford E350 truck with duallies in the rear, carryinga box body most commonly known as a "Type 3 Ambulance" body. These crittersare most commonly fitted with a HUGE 7+ litre Diesel engine, often fitted witha turbocharger when used in ambulance service. Essentially, it was a walk-inambulance body, but without the windows... the only ones there were inthe sideand rear doors. Incidentally, this one did NOT have the ambulance typewalkthruto the cab.The Ford E350 is a logical choice for this sort of work; as standard equipmentit has dual batteries (for cranking that monster
Diesel), and has available tomedical type users a big 110 VAC sine wave inverter (standard or optionalgear,I don't know) which would greatly simplify powering the monitoring gear. The Diesel is routinely set up (in ambulance service) with the heavy duty coolingsystems & generators required for long engine idling periods while pullingthe electrical and compressor loads required for heating and air conditioning the box, and providing the auxiliary electrical capacity needed for medical electronics and box lighting (which can get pretty intense).The box appeared to be the standard 8' x 8' x 12' size.The truck was all white; the only markings on it are FEDERAL COMMUNICATIONSCOMMISSION in VERY small letters on the side. Incidentally, it did NOT havea Federal license plate, just a standard Illinois tag.The only antennas visible outside were the standard antenna for the AM / FMradio in the cab, and a cop car type high band whip (quarter wave) on top ofthe cab. However... the box appeared
to be the fibreglass thye rather thanthe matal type (both are common in ambulance service.The interior was a bit of a surprise.The floor and walls were CARPETED, and the ceiling was acoustic tile! Setinto the walls (in disguised relay racks??? I couldn't see them) was a bigassortment of Watkins Johnson receivers, a spectrum analyzer, and variousother bits and pieces of gear mainly aimed at AM / FM / TV broadcast typemeasurements to determine technical compliance. There were a couple of loose, comfortable chairs (not anchored), and a Mr. Coffee! These guys areset up to sit & monitor for a fairly long term if they want to, and do itin comfort.Surprisingly, I saw NO recording gear, and no comnputers in evidence.Talking to one of the field engineers, I determined that the truck was setup to effectively monitor anything from 10 KHz to well into the mircowavespectrum. I imagine the outside storage compartments of the truck body heldvarious antennas and mounting hardware for them.The field
engineers also said that once every 60 days the truck took a trip to FCC headquarters for a complete recalibration and recertification of allequipment; after all, the readings it produced are often the basis for theviolation & "apparent liability" notices that they issue, and it had BETTERbe reading right on the money!73's,Tom, W9LBBAt 09:08 PM 12/6/2004 -0800, you wrote:
I seem to recall something like 5 receiving positions. info onthe remote control software for W-J. There are also some otherspecial RV type vehicles with much larger and newer assortments of gearinside, these after 9/11 are becoming rather classified although they canbe seen at large events such as inaugurations, visits by foreigndignitaries, and so forth. details to the list. Geoff Fors_______________________________________________ Premium-Rx Mailing List ToPost: premium-rx at ml.skirrow.org For Info:http://ml.islandnet.com/mailman/listinfo/premium-rx Visit the Website:http://kahuna.sdsu.edu/~mechtron/PremRxPage/
------------------------------_______________________________________________Premium-Rx Mailing ListTo Post: premium-rx at ml.skirrow.orgFor Info: http://ml.islandnet.com/mailman/listinfo/premium-rxEnd of Premium-Rx Digest, Vol 24, Issue 7*****************************************
-- Fred Osterman E-Mail: osterman at DXing.comUniversal Radio Research Web site: www.DXing.comUniversal Radio Inc. Web site: www.universal-radio.com 6830 Americana Pkwy. Phone: 614 866-4267Reynoldsburg, OH 43068 Fax Line: 614 866-2339
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