[R-390] R-648 contracts

[Buzz]

Guys,
I was a radio operator in the 60's and flew in several Neptunes with the R-648
and none of them had the VLF band.  But the VLF band was available on the ARN-21
RDF.  Also I think by that time 500 Kc was no longer an emergency frequency and
I THINK, that we were monitoring 2.125, 121.5, and 243.0.

Buzz



On Tue, 04 Oct 2005 00:13:54 -0700, you wrote:
>
>The     NAVAER 16-30ARR41-501  Handbook operation Instructions
>lists the freq coverage as 190-550 kHz and 2-25 MHz
>
>The R-648 I have, however, does not have 190-550 coverage.
>The LF group of coils are not installed, and the tuning will not
>go below 2 MHz. No label on this one, so can't give contract #.
>
>John
>http://www.jlkolb.cts.com
>
>
>
>At 12:40 PM 10/3/2005, Tom M. wrote:
>>I dug into my bar napkins and found these contract notes on the 648.
>>
>>I'm still a little fuzzy on the freq coverage.  Did only some of them cover
>>medium wave?
>>
>>Tom
>>
>>  R-648/ARR-41                hi sn
>>
>>NOas55-821r                   150
>>
>>NOas57-438                    1045
>>
>>NOas60-0164(medium wave)      MW-897
>>
>>N383(19-383)74432A            YY-125
>>
>>
>>total                          2207
>>
>>
>>
>>
>>
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