[1000mp] Carrier on 50.110 +/-

[Mark Tetrault]

On Tue, 25 Nov 2008 08:10:42 +1100, you wrote:

>I have just been alerted to  the clock birdie, on 25.055 and
>drifting up as it got warmer up to 25.070.  This is, of course, not a
>problem on the fundamental, but the second harmonic (50.110 thru 50.140)
>is a TREMENDOUS problem when on was trying to use any 6 meter equipment
>with the thing turned on.
>People have sent rigs back to Yaesu and they found
>resonators in their inventory that makes it come out around 25.014, cold, 
>which is much less of a problem on 6 meters.
>
>The signal comes from a microprocessor clock @ nominally 25 MHz.  The
>real cure would be to use a real quartz AT-cut crystal at 24.995 in this
>circuit, but Yaesu cheaped out and used a surface-mount ceramic
>resonator instead.

I find this discussion fascinating, as I own an FT1000MP Mark V and the FTV
1000 6m converter and use it extensively on 6m along with a Quadra amp and
have found NO birdies or anything else to disturb my 6m experiences.

Mark
AA1OV