[Boatanchors] SP-600 J-11

[rbethman]

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