[AMRadio] Frequencies

Jim Candela jcandela at prodigy.net
Thu Jan 25 17:48:23 EST 2007


   Isn't the SP-600 a dual conversion receiver? Maybe it is dual conversion on the higher bands, but single conversion on 75m. Depending on whether single or dual, the crystal frequency you need might be different. If dual, isn't the 2nd LO free running like on a Gonset G-76? If so, you better measure it's exact frequency to assist in the crystal selection.


----- Original Message ----
From: Rick Brashear <rickbras at airmail.net>
To: Discussion of AM Radio in the Amateur Service <amradio at mailman.qth.net>
Sent: Thursday, January 25, 2007 4:13:27 PM
Subject: Re: [AMRadio] Frequencies

You guys are sure tough on an old man trying to make a living.   :-)

As for the "rocky receiver", it's because I think it's cool to be able 
to go to an often used frequency by simply twisting a knob and selecting 
a crystal.  However, those dreams have been dashed on the "rocks" for 
the time being.  Bry doesn't have them, I'm too cheap to pay the $20 per 
plus shipping to Jan Crystals and Petersen Radio has closed it's doors.

If anyone hs any 4.335, 4.340 and/or 4.345 rocks in a HC-6/U case let me 


Geoff/W5OMR wrote:

> Rbethman wrote:
>> Geoff,
>> He is physically STUCK in his SP-600!
>> He CAN'T get on the air! <G>
> He could.. if he just spent -half- the time -on the air- as he does on 
> his computer, we'd hear a LOT from Rick ;-)
> I still can't get over someone wanting to put a xtal in a receiver, 
> though...  to each their own, but it doesn't make sense to me.
> -- 
> 73, etc
> -Geoff/W5OMR (/5 Houston)

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