[R-390] Please spare us

[eldim at att.net]

Hello Peter,
You just need to check the sensitivity of your receiver or increase your RF Gain in the MGC Mode.  Plus you must make sure your aerial is connected.  Check you ground too!
73, Glen, KA7BOJ
Tacoma, WA

-------------- Original message from "Peter Worrall, G4GJL" <g4gjl at btopenworld.com>: -------------- 


> .....Two spurious responses if my memory serves me. And those barely audible 
> with the antenna (aerial over here) disconnected. 
> 
> Peter 
> 
> G4GJL 
> ----- Original Message ----- 
> From: "Veenstra, Lester" 
> To: "Roy Morgan" ; "Kenneth Arthur Crips" 
> ; "R-390" 
> Sent: Monday, June 06, 2005 8:13 AM 
> Subject: RE: [R-390] Please spare us 
> 
> 
> Problem with the Racal's is not sensitivity which as a practical matter 
> is not significant, but rather, the number of spurious responses it had. 
> 
> Lester Veenstra 
> Senior Engineering Program Manager 
> Intelsat General 
> 6550 Rock Springs Drive, Suite 450 
> Bethesda Maryland, 20817 
> +1-301-571-1212 
> e-mail: lester.veenstra at intelsatgeneral.com 
> 
> 
> -----Original Message----- 
> From: r-390-bounces at mailman.qth.net 
> [mailto:r-390-bounces at mailman.qth.net] On Behalf Of Roy Morgan 
> Sent: Monday, June 06, 2005 10:36 AM 
> To: Kenneth Arthur Crips; R-390 
> Subject: Re: [R-390] Please spare us 
> 
> At 07:13 PM 6/5/2005, Kenneth Arthur Crips wrote: 
> >... Instead of arguing which radio is better the discussion sho(uld) 
> >center on what is different and why they are different. 
> 
> Ken, 
> 
> There is a fellow in my antique radio club (www.maarc.org) who has had a 
> 
> long and varied career in radio, both military and civilian. He's VERY 
> knowledgeable about all sorts of radios. I heard him say once that the 
> Racal RA.17 was ten times more sensitive than the R-R90A. At the time, 
> I 
> though "probably not!" Then later I got a manual for the Racal (and 
> later 
> yet a radio itself) and found that the specifications for sensitivity 
> are 
> very similar. 
> 
> I have not yet repaired and aligned the Racal RA.17 UC that I have, so I 
> 
> can't report on it's performance. 
> 
> I was interested to see in a Navy training manual, "Cryptological 
> Acquisition Equipments" (or some such title) that both the R-390A, and 
> the 
> Racal RA.17 under a military number, are described. 
> 
> >...the Lysco model 600 Transmaster which has to be one of the worst 
> >transmitters ever produced for sale, the engineers who designed this 
> turd 
> >must have been drunk. 
> 
> OR ... under directions from their employer that were a severe 
> compromise 
> of quality and performance in the interest of cheapness to make and/or 
> production schedules. 
> 
> I have just acquired an RBB and an RBC, Perhaps the original Boatanchors 
> at 
> 85 pounds each plus 55 pounds each power supply. Designed in the late 
> 1930's, these have been described as a "dream project" for the RCA 
> engineers, with no cost spared for quality and reliability. I look 
> forward 
> to the day that they are restored and aligned and pulling in the 
> moderately 
> high signal levels they are only capable of. 
> 
> Roy 
> 
> - Roy Morgan, K1LKY since 1959 - Keep 'em Glowing! 
> 7130 Panorama Drive, Derwood MD 20855 
> Home: 301-330-8828 Cell 301-928-7794 
> Work: Voice: 301-975-3254, Fax: 301-948-6213 
> roy.morgan at nist.gov -- 
> 
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