[R-390] R-648 and roll call

[Clemens Ostergaard]

Thank you, Meir, I always read all messages. It seems to be a question of
wording: the continuously tunable BC-348 was replaced by the continuously
tunable R-648, in order to have such a receiver as an auxiliary in the now
digitally step-tuned transceiver set-up of ARC-65 or ARC-94. (In the case
of the Fairchild C-119 Flying Boxcar it may have directly replaced the
BC-348, presumably with an ART-13. )  But of course it would be wrong to
say that *all* BC-348 were replaced by R-648, the numbers alone make it
impossible.

Best,

Clemens

On Sun, Dec 13, 2015 at 5:51 PM, Meir WF2U <wf2u at ws19ops.com> wrote:

> Check out the previous messages about the R-648. Fred Osterman has a
> number of inaccuracies in several receivers in the book. He is incorrect
> regarding the R-648 original purpose. As shown in the original
> documentation, the purpose was to provide an auxiliary tunable receiver
> with digital frequency display (albeit mechanical) with accuracy and
> stability close to those of the main HF radio, which was a digitally step
> tuned transceiver.
> The R-648 was simply a different, modern, (then) state of the art approach
> to an airborne HF receiver, while preserving the manual tunability.
>
> 73, Meir WF2U
> Landrum, SC
>
>
> On December 13, 2015 8:53:01 AM EST, Clemens Ostergaard <
> clemenso at gmail.com> wrote:
>
>> As long as we are standing up and being counted, I might as well chime in.
>> Still here, but down to two R-390A's now, a mid-town apartment not being as
>> permissive an environment as I used to have. So instead of 65 boat anchors,
>> I have 6,5 now. Decimated it is. But they are gone to good homes all over
>> Europe.
>>
>> Yet I have always looked for an R-648 (and still am) Not many around in
>> Europe. It is certainly not off-topic, building so much on the bigger box
>> beloved by us all. In the wonderful new 800-page (4th) edition of
>> "Shortwave Receivers Past & Present. Communications Receivers 1942-2013",
>> that Fred Osterman sent out last year, he comments that it was to replace
>> the BC-348, and points to the review in Electric Radio Feb 2000.
>>
>> Have we heard from Roger (Ruszkowsky) in this round? So much to learn from
>> him, and such a great way he has to share his knowledge.
>>
>> Best,
>>
>> Clemens
>> S. Ostergaard
>> (now) Copenhagen
>> Denmark
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>