[MRCG] SCR-522 xtals

[Dennis DuVall]

The way the SCR-522 is set up the transmitter operates off the 18  
harmonic of the controlling crystal.  Thus, for an output frequency of  
144.450 mHz an 8025 crystal would be required.  On the receiver side a  
number of different harmonic combinations are possible to provide an  
injection harmonic 12 mHz (receiver IF freq.)  below the desired  
operating frequency.

2M Freq         Xmit xtal                                               
Rec xtals
-----------          
------------                                              -------------
144.265     8014.72                    8817.67           
8266.56          7780.294     7348.06
144.4          8022.22 kc               8826.67           
8275               7788.235     7355.56
144.45        8025                         8830                 
8278.13          7791.176     7358.33


Dennis D.  W7QHO
Glendale, CA

********************
On Jan 16, 2014, at 11:53 AM, Thekan, Paul wrote:

> Chuck
>
> What xtal freq fundamental do you need to get to 144.45 mcs?.....I'm  
> guessing somewhere around 8 mcs , maybe 8.025mcs??....type FT 240 ??
>
> Paul
> N6FEG
>
> -----Original Message-----
> From: mrcg-bounces at mailman.qth.net [mailto:mrcg-bounces at mailman.qth.net 
> ] On Behalf Of Chuck McClurg
> Sent: Thursday, January 16, 2014 11:47 AM
> To: West Coast Military Radio Collectors Group
> Subject: Re: [MRCG] Camp SLO pre-announcement
>
> John:
>
> I just got my '522 stuff out of the storage shed and found that I  
> may be able to bring it down so you will have someone to talk to ! ! !
>
> BUT, I have gone through my crystals and find I don't have a set of  
> crystal for 144.45 Mcs.  If you have a spare set I can bring down  
> the set as I have a RA-62-B power supply and a 14v dynamotor but no  
> power plug for the dynamoter just the output cable I made up.
>
> I aslo will bring the IE-36 and do a in the field set up!  !
> me: http://mailman.qth.net/mailman/listinfo/mrcg
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCG at mailman.qth.net
>
> Website: http://www.mrcgwest.org
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> _____________________________
>