At 05:51 PM 1/30/2006, [EMAIL PROTECTED] wrote:
Bill KD5TFD and I are working on a project to correct the initial frequency
error and temperature drift of the 200MHz VF oscillator in the SDR1000.
To do so we need to tap off some of the 200MHz signal and feed it to another
circuit board. My suggestion is to make a small PCB daughter board that the
200MHz oscillator plugs into and that in turn plugs into the existing
mounting
holes.
I think you won't have clearance. I'd go with the oscillator dongle
approach as you describe below. It also lends itself to other "good
ideas", like thermal isolation of the oscillator, etc.
You'll need to figure out some details on how to send the signal back to
the board in an optimal fashion. (i.e. you don't want noise pickup or the
line driver to add jitter)
Jim.
