[Boatanchors] SP-600 J-11

[Radios R. Me]

Thanks Bob - do you know if these are fundamental crystals that just run at, or close 
to the desiredreceive frequency? If so, are the FT243 types (if you happen to know!)

 
I had a couple of people asking me for crystals for their SP600 radios, so they 
must be the versions of the radio that have the sockets in them already...


73 - Brian "Bry" Carling, AF4K
= = =
Please use my main e-mail address:  af4k at hotmail.com




________________________________
From: rbethman <rbethman at comcast.net>
To: Boatanchors Mail List <boatanchors at mailman.qth.net>
Cc: Radios R. Me <radios_r_me at yahoo.com>
Sent: Wed, March 10, 2010 12:01:50 PM
Subject: Re: [Boatanchors] SP-600 J-11

 Bry,

The Northern SP-600 doesn't have the module that is in the JX-17 for
crystal placement and selection.

That module came along quite a bit after the "early" variation.

They allow for fixed frequency use, I think.  Not having had one of
those, I can't really say.

The Northern Radio contract, NO bsr 57519, apparently was in the '50s. 
It had as part of the "system", two of their SP-600s, a LMO, Local
Master Oscillator, and speaker all in a rack.

The LMO would set the frequency for BOTH receivers.  There were two
antennae, one attached to each receiver.

Well, I got a bit long.  However, I do not see immediately, a way to
add this crystal module, and certainly have never seen them separate. 
I believe that they were factory installed.

Bob - N0DGN

On 3/10/2010 10:57 AM, Radios R. Me wrote: 
> 
>Hi
>Bob - do you know if there is some scheme for adding crystals in the
>SP600?
>>I have had a few folks asking me about this lately.
>
>>If so, would they be for fixed frequency operation? extra bands or what?
>
> 
>>73 - Brian "Bry" Carling, AF4K
>
>= = =
>>Please use my main e-mail address: af4k at hotmail.com