[VHFcontesting] [VHF] 902.010 for contests?

[Zack Widup]

Sure. Depends on how much you want to put into frequency accuracy.

My 902/902 transverter uses a crystal oscillator that doesn't drift at all 
after about a minute of warm-up and then only drifts a kHz at most.  The 
IF rigs I use don't drift at all. I use an FT290RII and an HTX-100 with a 
built-in 144 MHz transverter.

I have seen no need to phase-lock the 903 LO to a 10 MHz reference as it 
is stable and accurate enough without. I have no cencern that I am 
anywhere near the band edge when transmitting on 902.100.

My transverters for 2304 and up all have phase-locked LO's and the 10 GHz 
LO is accurate to within about 200 Hz at worst and very stable. They only 
get better for the lower bands.

73, Zack W9SZ


On Thu, 7 Aug 2008, James French wrote:

> Since I have opened this can of worms... :) I should ask this then.
>
> Do we want to be this close to the band edge with the use of trans-
> verters?
>
> What about drift and other things? Some that I know use the MFJ 2m
> SSB/CW transceiver as the IF for their transverters and they do drift
> a LOT even after being warmed up.
>
> I am VERY leary of operating that close to the band edge since I am
> still a greenhorn to my HF frequencies and don't have the equipment to
> test things out all the time unless you count my rat shack frequency
> counter.
>
> James W8ISS