[Milsurplus] [RCA] SRR-13 Article

[George Babits]

HUmm?  So what is a BC-224B?  Rare, uncommon, or rarommon?

73,
George
W7HDL


----- Original Message ----- 
From: "Hubert Miller" <kargo_cult at msn.com>
To: <Milsurplus at mailman.qth.net>
Sent: Thursday, August 04, 2016 7:44 PM
Subject: Re: [Milsurplus] [RCA] SRR-13 Article


This is not just my idiosyncratic use of words; the same terminology applies 
to the world of antiques.

Uncommon is at a hamfest, an MAB or DAV walkie-talkie.

Rare is a Bendix 8D-3 walkie talkie.

Uncommon is a BC-224-C.

Rare is a BC-224-A.

-H M



From: antqradio at sbcglobal.net [mailto:antqradio at sbcglobal.net]
Sent: Thursday, August 4, 2016 5:34 PM
To: Hubert Miller <kargo_cult at msn.com>; Milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] [RCA] SRR-13 Article



Not  to pick a fight but I feel that you are splitting hairs, care to parse 
the difference between uncommon and rare?

Jim



  _____

From: Hubert Miller <kargo_cult at msn.com <mailto:kargo_cult at msn.com> >
To: Milsurplus at mailman.qth.net <mailto:Milsurplus at mailman.qth.net>
Sent: Thursday, August 4, 2016 11:54 AM
Subject: Re: [Milsurplus] [RCA] SRR-13 Article



I think the word is “uncommon”, not “rare”.  The R-808 has only LC 
selectivity at IF. I think the narrowest is 3 kHz at -6db, something like 
that.

On CW narrow there’s also an audio filter, like with the SRR. I consider 
this receiver as 2nd place to the SRR because of 1- the 16-32 single swath

high band, and 2- the IF alignment requiring removal of the IF section. I 
wonder if people who bought this receiver, knew that when they bought

it.

-H



From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of 
antqradio at sbcglobal.net <mailto:antqradio at sbcglobal.net>
Sent: Thursday, August 4, 2016 9:23 AM
To: Milsurplus at mailman.qth.net <mailto:Milsurplus at mailman.qth.net> ; RCA 
Equipment <rca at mailman.qth.net <mailto:rca at mailman.qth.net> >
Subject: Re: [Milsurplus] [RCA] SRR-13 Article



Hue

I haven't seen a response to your query.  Perhaps both are rare enough that 
no one has the operating experience to compare them?



To start the ball rolling specification wise, the R-808 is single conversion 
below 8 mc, has a 2nd crystal controlled above 8 mc.  Second IF is 455 kc, 
not sure if there are selectable IF bandpass filters, will have to check the 
manual to be sure.



SRR-13 is double conversion on all bands with three L/C pass band filters at 
the beginning of the 200 kc second IF.  First IF is 1600 kc.  The SRR-13A 
has the two narrow 200 kc filters replaced by RCA designed mechanical 
filters but the broad filter remains L/C.  Filter bandwidths are 
approximately, 1, 3 and 8 kc centered on 200 kc.  There is also an audio 
filter that has a pass band of 825 to 1175 cycles which is switched in for 
the A1 sharp passband position.



Jim



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