[Milsurplus] [RCA] SRR-13 Article

Thu Aug 4 20:34:17 EDT 2016

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>
 To: Milsurplus at mailman.qth.net 
 Sent: Thursday, August 4, 2016 11:54 AM
 Subject: Re: [Milsurplus] [RCA] SRR-13 Article

#yiv2720077976 #yiv2720077976 -- _filtered #yiv2720077976 {font-family:Helvetica;panose-1:2 11 6 4 2 2 2 2 2 4;} _filtered #yiv2720077976 {panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv2720077976 {panose-1:2 15 3 2 2 2 4 3 2 4;} _filtered #yiv2720077976 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv2720077976 {font-family:Garamond;panose-1:2 2 4 4 3 3 1 1 8 3;}#yiv2720077976 #yiv2720077976 p.yiv2720077976MsoNormal, #yiv2720077976 li.yiv2720077976MsoNormal, #yiv2720077976 div.yiv2720077976MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:12.0pt;}#yiv2720077976 a:link, #yiv2720077976 span.yiv2720077976MsoHyperlink {color:blue;text-decoration:underline;}#yiv2720077976 a:visited, #yiv2720077976 span.yiv2720077976MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv2720077976 p.yiv2720077976msonormal0, #yiv2720077976 li.yiv2720077976msonormal0, #yiv2720077976 div.yiv2720077976msonormal0 {margin-right:0in;margin-left:0in;font-size:12.0pt;}#yiv2720077976 p.yiv2720077976msonormal0, #yiv2720077976 li.yiv2720077976msonormal0, #yiv2720077976 div.yiv2720077976msonormal0 {margin-right:0in;margin-left:0in;font-size:12.0pt;}#yiv2720077976 p.yiv2720077976msonormal, #yiv2720077976 li.yiv2720077976msonormal, #yiv2720077976 div.yiv2720077976msonormal {margin-right:0in;margin-left:0in;font-size:12.0pt;}#yiv2720077976 p.yiv2720077976msochpdefault, #yiv2720077976 li.yiv2720077976msochpdefault, #yiv2720077976 div.yiv2720077976msochpdefault {margin-right:0in;margin-left:0in;font-size:12.0pt;}#yiv2720077976 span.yiv2720077976msohyperlink {}#yiv2720077976 span.yiv2720077976msohyperlinkfollowed {}#yiv2720077976 span.yiv2720077976emailstyle18 {}#yiv2720077976 span.yiv2720077976emailstyle19 {}#yiv2720077976 p.yiv2720077976msonormal1, #yiv2720077976 li.yiv2720077976msonormal1, #yiv2720077976 div.yiv2720077976msonormal1 {margin:0in;margin-bottom:.0001pt;font-size:12.0pt;}#yiv2720077976 span.yiv2720077976msohyperlink1 {color:blue;text-decoration:underline;}#yiv2720077976 span.yiv2720077976msohyperlinkfollowed1 {color:purple;text-decoration:underline;}#yiv2720077976 p.yiv2720077976msonormal01, #yiv2720077976 li.yiv2720077976msonormal01, #yiv2720077976 div.yiv2720077976msonormal01 {margin-right:0in;margin-left:0in;font-size:12.0pt;}#yiv2720077976 span.yiv2720077976emailstyle181 {color:windowtext;}#yiv2720077976 span.yiv2720077976emailstyle191 {color:windowtext;}#yiv2720077976 p.yiv2720077976msochpdefault1, #yiv2720077976 li.yiv2720077976msochpdefault1, #yiv2720077976 div.yiv2720077976msochpdefault1 {margin-right:0in;margin-left:0in;font-size:10.0pt;}#yiv2720077976 span.yiv2720077976EmailStyle32 {color:windowtext;}#yiv2720077976 .yiv2720077976MsoChpDefault {font-size:10.0pt;} _filtered #yiv2720077976 {margin:1.0in 1.0in 1.0in 1.0in;}#yiv2720077976 div.yiv2720077976WordSection1 {}#yiv2720077976 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 swathhigh band, and 2- the IF alignment requiring removal of the IF section. I wonder if people who bought this receiver, knew that when they boughtit.-H   From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of antqradio at sbcglobal.net
Sent: Thursday, August 4, 2016 9:23 AM
To: Milsurplus at mailman.qth.net; RCA Equipment <rca at mailman.qth.net>
Subject: Re: [Milsurplus] [RCA] SRR-13 Article  HueI 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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