[PCR-1000] RE: PCR-1000 Digest, Vol 24, Issue 1

[R. J. Grasser]

Grounding should be done to the outside water pipe, not the internal AC
plug.  Mine is attached to a 1 inch thick busbar that runs the length of the
shack.

I run my PCR-1000 off of a regulated, linear, bench powersupply.  First
thing I did was to toss that wall-wart.

You can also scramble the internal software if your receiver is close to a
fast computer, large CRT type (not LCD/Plasma) display/TV, or radio
transceiver.

I suspect that certain types of RF test equipment may also have negative
effects on the 1000.

I no longer use my 1000, as it has been replaced by a far superior,
broadband receiver that doesnt need a computer to operate.

73's OM


----- Original Message -----
From: "A10382" <a10382 at snet.net>
To: "Discussion of PCR-1000 by Icom" <pcr-1000 at mailman.qth.net>
Sent: Friday, March 30, 2007 1:34 PM
Subject: Re: [PCR-1000] RE: PCR-1000 Digest, Vol 24, Issue 1


> 2 Icom 756 Pro Radios to be given away to QSL/QTH .NET supporters!  One on
Dec 31 and one on Jan 31.
> See http://mailman.qth.net for details.
> ______________________________________________________________
>
> Are you using a wall-wart with sufficient output power?
>
> I've seen folks use another wall-wart - that outputted a lot less than the
> Icom supplied one - and the radio exhibited all sorts of strange behavior.
>
> also, you might try grounding the radio (ground screw on rear - to a
> suitable earth ground.. This also sometime fixes some odd behavior.
>
> Radio is radio - it may be regulated by the FCC, but it's governed by the
> laws of physics which cannot be overturned by any district appeals court!
>
> ----
> 73, frank
> ._._.
>
>
> ----- Original Message -----
>
> Sent: Friday, March 30, 2007 9:30 AM
> Subject: [PCR-1000] RE: PCR-1000 Digest, Vol 24, Issue 1
> ______________________________________________________________
>
> Sounds like a VCO or PLL problem. Sounds like time to dig out a set of
> schematics and troubleshoot the frequency synthesis for the PLL.
>
> One idea comes to mind is, is there a secondary power supply inside the
> unit, probably 5 V or 12 volt (7805 or 7812).  Have you checked the output
> to see if it is clean (no ripple)?
>
> Secondly, is this a serial data communications problem, if you monitor the
> communication port does is work consistently or are there a number of
> retries indicating it might be serial port issue?  Does it work initially
> and then degrade?
>
> Have you tried a different PC to eliminate the PC's serial port?
>
>
>
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