[R-390] Interesting R390A

[chacuff]

----- Original Message ----- 
From: "Glenn Little WB4UIV" <glennmaillist at bellsouth.net>


> For some unknown reason the widest filter is selected for CW.
> The R-1051 series receiver is more stable than the R-390 series.

CW was a back up mode at that point...fleet broadcasts were high power and 
RATT which the R-1051 excelled at.

> This is what I understand is the reason for the R-1051 replacing the 
> R-390.
> The R-1051 does have a tube in the receiver front end, making it
> possible to potentially survive an EMP.

Nothing they didn't already have with the R-390 series...

I think the driving factor was stability, dial accuracy for RATT and SSB 
neither of which the R-390A did well without dial fiddling.  The R-1051 was 
mounted several to a rack...set on frequency and walked away from...not 
usually at an operators postition but they were remotely controlable...

Also maintenance shipboard was module swaps.  Modules were shipped back to 
depot not the whole radio.

Biggest downfall was reliability....

>
> 73
> Glenn
> WB4UIV
> ETCS(SS) USN Retired
>
> At 02:51 PM 4/27/2012, David Wise wrote:
>>Heh.
>>
>>I'm looking forward to _attempting_ to SWL* on my no-suffix R-1051.
>>That is, once I have repaired it.  And made it reliable.
>>
>>Sounds like this project will be a Full Meal Deal.
>>
>>Dave Wise
>>
>>* No band cruising; fixed frequencies only.
>>
>>Sorry for the OT, but does anyone have a spare cabinet for this model?
>>
>> >-----Original Message-----
>> >From: r-390-bounces at mailman.qth.net
>> >[mailto:r-390-bounces at mailman.qth.net] On Behalf Of Randy and
>> >Sherry Guttery
>> >Sent: Friday, April 27, 2012 11:42 AM
>> >To: R-390-List
>> >Subject: Re: [R-390] Interesting R390A
>> >
>> >Why replace a 1051?   Don't know - but I can make some
>> >semi-intelligent "guesses"...
>> >1) ever try doing any SWL'ing on a 1051?
>> >2) ever repair one of the "early" versions of the 1051?
>> >3) the earliest 1051s had some serious reliability issues -
>> >eventually resolved... true - but some people just didn't
>> >"like" them - and any excuse was good enough.
>> >
>> >again - just my .02 - and probably not worth that...
>> >
>> >--
>> >randy guttery
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>
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