[Milsurplus] R-808 on FM ?
Hue Miller
kargo_cult at msn.com
Sun Dec 28 17:31:50 EST 2014
With the R-808s equipped with the 455 kHz IF - discriminator transformer, would thatbe able to receive the NBFM on 10M ?-Hue Miller > From: milsurplus-request at mailman.qth.net
> Subject: Milsurplus Digest, Vol 128, Issue 12
> To: milsurplus at mailman.qth.net
> Date: Sun, 28 Dec 2014 17:24:18 -0500
>
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> Today's Topics:
>
> 1. Some stuph to get rid of (Jack Antonio)
> 2. Re: R-808 (Hue Miller)
> 3. Re: R-808 (Richard Solomon)
> 4. R-808 Tips (David Stinson)
> 5. Re: R-808 (WA5CAB--- via Milsurplus)
> 6. Harris RF-5720 HF Modem (Joseph Pinner)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 28 Dec 2014 12:33:14 -0500
> From: Jack Antonio <scr287 at att.net>
> To: milsurplus <milsurplus at mailman.qth.net>
> Subject: [Milsurplus] Some stuph to get rid of
> Message-ID: <54A03EDA.7000409 at att.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Found a couple of things that I have no use for, and
> hope to find a good home. I would really like to get
> them to someone who will use them for their intended
> purpose, and not a source of parts or modified to be
> something else.
>
> 1. For you field phone types,
>
> A PE-204-A power supply. This is a vibrator supply to run
> the EE-99 repeater.
>
> 2. For you AN/TRC-1 types,
>
> A CY-67 case with some FT-243 and FT-241
> crystals. The crystals are all marked for the channels
> or frequencies used in the AN/TRC-1.
>
> And a TS-32A test oscillator. In good shape, except
> that some one nicely removed the octal plug on the
> end. They unsoldered rather than cut, so the plug
> could be replaced rather easily.
>
> Again, free to good home, but I would like shipping
> costs for the PE-204, as it is a bit heavy.
>
> Thanks
>
> Jack Antonio WA7DIA/4
>
>
> ------------------------------
>
> Message: 2
> Date: Sun, 28 Dec 2014 10:28:53 -0800
> From: "Hue Miller" <kargo_cult at msn.com>
> To: <milsurplus at mailman.qth.net>
> Subject: Re: [Milsurplus] R-808
> Message-ID: <BAY181-DS236A6E116C2491CB5F798CE4500 at phx.gbl>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Well, I own an R-808 but I have not yet tried it out.
> I was not thrilled when I read in the manual that to do an alignment, I
> would need to remove
> the RF and IF sections and cable them back into the receiver.
> Also the top band 16-32 MHz has a tuning rate which is not admirable. The
> SRR-13 is
> better in this respect, having it 16-24, 24-32 MHz, but I don't see that the
> SRR-13
> has any better selectivity.
> -Hue Miller
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Sun, 28 Dec 2014 11:33:10 -0700
> From: Richard Solomon <dickw1ksz at gmail.com>
> To: milsurplus at mailman.qth.net
> Subject: Re: [Milsurplus] R-808
> Message-ID:
> <CAC5FBO91vP2adAnngJGJK-XStuQj-3RVmPTr2dW2-7qtcT4=5Q at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> This Receiver is a prime example of Inter-Service rivalry and how
> your tax money gets wasted.
>
> The Navy (Marine Corps) wanted an HF Receiver, would they just
> use the R-392, no way. They added some requirements and awarded
> a contract to develop and produce a new radio.
>
> They had one production run and faded into history.
>
> 73 es HNY, Dick, W1KSZ
>
> On Sun, Dec 28, 2014 at 11:28 AM, Hue Miller <kargo_cult at msn.com> wrote:
>
> > Well, I own an R-808 but I have not yet tried it out.
> > I was not thrilled when I read in the manual that to do an alignment, I
> > would need to remove
> > the RF and IF sections and cable them back into the receiver.
> > Also the top band 16-32 MHz has a tuning rate which is not admirable. The
> > SRR-13 is
> > better in this respect, having it 16-24, 24-32 MHz, but I don't see that
> > the SRR-13
> > has any better selectivity.
> > -Hue Miller
> >
> >
> > ______________________________________________________________
> > Milsurplus mailing list
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> >
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> >
>
>
> ------------------------------
>
> Message: 4
> Date: Sun, 28 Dec 2014 12:46:34 -0600
> From: "David Stinson" <arc5 at ix.netcom.com>
> To: <milsurplus at mailman.qth.net>
> Subject: [Milsurplus] R-808 Tips
> Message-ID: <53A5A8CFEBE548A48416516A4D4487CC at DaddyPC>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=response
>
> Had a few people now ask me about the R-808.
> It's been years and years but here's what I remember:
>
>
> The power supply can have filter problems like any other,
> but the biggest problem I found in -808s is mechanical
> instability. I've worked on three and they all had that
> same problem, although I've heard of some that didn't.
> In each case, removing the big RF deck under the chassis
> completely, De-Ox-It on the connectors and re-seating it
> solved the problems.
> You have to align the the tuning dial a certain way to remove
> the module- it's pretty obvious how it comes out.
> There's one white wire bolted to a terminal and a
> couple of shielded connectors to unplug- BNC I think.
> Turn some obvious screw-downs and the whole RF deck
> comes out in one big piece.
> On two sets, there was also a problem with a connection
> at a tube socket with no solder.
> I inspected every "nook and cranny" but found only
> the one no-solder terminal (on the main chassis) in each.
> After correcting those, the sets worked well.
> Once the set was stabilized, I enjoyed using the internal
> converter to copy RTTY on my Model 19 of blessed memory.
>
> 73 DE Dave AB5S
>
>
> ------------------------------
>
> Message: 5
> Date: Sun, 28 Dec 2014 16:05:26 -0500
> From: WA5CAB--- via Milsurplus <milsurplus at mailman.qth.net>
> To: milsurplus at mailman.qth.net
> Subject: Re: [Milsurplus] R-808
> Message-ID: <4c74f.32fe46e4.41d1ca96 at cs.com>
> Content-Type: text/plain; charset="US-ASCII"
>
> Actually, to be fair and not get into conspiracy theories, they were
> produced around the same time and an AN/GRC-19 fitted out to be the equivalent of
> an AN/GRC-14 is an AN/GRC-46 or AN/VRC-29 plus an extra R-392 and takes up
> more space. Plus USMC only bought about one item for every ten that USA
> bought. The main drawback of the AN/GRC-14 was the weight of the transmitter
> power supply, which was separate from the transmitter. The R-808, unlike the
> R-392, is a standalone RATT receiver. And it is far from the only military
> receiver to require extender cables for maintenance.
>
> Robert Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480
>
> In a message dated 12/28/2014 12:33:32 PM Central Standard Time,
> dickw1ksz at gmail.com writes:
> > This Receiver is a prime example of Inter-Service rivalry and how
> > your tax money gets wasted.
> >
> > The Navy (Marine Corps) wanted an HF Receiver, would they just
> > use the R-392, no way. They added some requirements and awarded
> > a contract to develop and produce a new radio.
> >
> > They had one production run and faded into history.
> >
> > 73 es HNY, Dick, W1KSZ
>
>
> ------------------------------
>
> Message: 6
> Date: Sun, 28 Dec 2014 17:24:01 -0500
> From: Joseph Pinner <jpinner33 at att.net>
> To: MARS-ALE at yahoogroups.com, harris-radio at yahoogroups.com,
> "milsurplus at mailman.qth.net" <milsurplus at mailman.qth.net>
> Subject: [Milsurplus] Harris RF-5720 HF Modem
> Message-ID: <54A08301.2020303 at att.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Well, my previous trouble with the modem was small compared to this.
>
> Yesterday, I turned it on and display was blank.
>
> Opened it up and pulled the Power Supply board and after visual and some
> other troubleshooting, found that the pico fuse was open.
>
> Today I replaced the fuse and it blew again. Without more information, I
> cannot tell if is is a power supply issue or a short in the other modules.
>
> Does anyone have schematics/maintenance information for the RF-5720?
>
> --
> Joseph Pinner
> Kingston, TN
>
> KC5IJD / NNN0PHR
> Roane County OES 408
>
>
>
> ------------------------------
>
> Subject: Digest Footer
>
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> ------------------------------
>
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