[Premium-Rx] Cubic R3030

[FRANCIS CARCIA]

Problem found, It looks like the X2210 NVRAM in the panel interface module is shot. The manual warns that they have a limited life. Set up data is stored when the radio is powered off so it comes back to the same settings when repowered. I removed the X2210 and radio came up stupid. I went through all the functions and everything was fine. Then reinstalled the X2210 and radio was stupid again. I have a R3080 and 1/2 a R2307 with the same problem. I hope I can still buy the XICOR parts. 
frank WA1GFZ


________________________________
 From: FRANCIS CARCIA <carcia at sbcglobal.net>
To: 
Cc: PREMIUM-RX <premium-rx at mailman.qth.net> 
Sent: Wednesday, January 1, 2014 2:23 PM
Subject: [Premium-Rx] Cubic R3030
 

Hi All,
Happy New Year everyone.
I wonder if there is anyone out there in radio land who has a copy of the R3030 CPU software?
I may have corrupted something and sure could use a clean copy. this is the one with IEEE488 interface and .5, 1, 2, 4, 8 kHz filters. A fresh set of EEproms would be nice if anyone out there still has a programmer.
I'd be glad to pay for your trouble,
Thanks,
Frank WA1GFZ  


________________________________
From: Dan Robinson <dxace1 at gmail.com>
To: Michael O'Beirne <michaelob666 at ntlworld.com> 
Cc: PREMIUM-RX <premium-rx at mailman.qth.net> 
Sent: Wednesday, January 1, 2014 10:56 AM
Subject: Re: [Premium-Rx] Premium-Rx Digest, Vol 86, Issue 1


Thanks for the info -- unfortunately I think I am done when it comes to corrective steps on noise but would you have any suggestion re the preselected?

Daniel A. Robinson 

> On Jan 1, 2014, at 10:49 AM, "Michael O'Beirne" <michaelob666 at ntlworld.com> wrote:
> 
> Dan,
> 
> I suspect the problem is not that different from the very high QRM encountered in the recent desert campaigns and caused by the very high static levels.  You may recall in the First Iraq campaign that US Forces had to dig out their old Collins R390As to cope.
> 
> I also suspect the answer in part is to add a decent tunable preselector to the input to reduce the broadband noise, and also to fit a better mains power filter.
> 
> I recall being told by a professional communicator at Air Traffic Control at a major UK computer centre that they used an old Eddystone EC958 to monitor some of the Atlantic HF channels.  They replaced it with a modern receiver with a wide open F/E and it was hopeless, probably smothered by the vast local QRM generated by the computers.  The 958 in contrast hasd three very sharp tuned circuits before the mixer and was able to cope better.
> 
> 73s
> Michael
> G8MOB
> 
> ----- Original Message ----- From: "Dan Robinson" <dxace1 at gmail.com>
> To: <premium-rx at mailman.qth.net>
> Sent: Wednesday, January 01, 2014 2:54 PM
> Subject: Re: [Premium-Rx] Premium-Rx Digest, Vol 86, Issue 1
> 
> 
>> I have had my 340 for three years now -- it's obviously among
>> the top of the pile when it comes to receivers.  But one thing I
>> have noticed is that it does not hold up well in noisy receiving
>> locations, likely due to its construction in comparison with the
>> older boatanchor weight receivers.  Comparisons with my 8718A/MFP
>> at my house, which frustratingly has been plagued by a lot of power
>> and DSL noise, show that 8718A, which is built like an Abrams tank,
>> manages to rescue signals better than the 340 on days when local
>> noise is high.
> 
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