Tnx Ken.
In your example with the transverter, it would be multiplied.
I guess it would make a big difference then.
But I don't do that either.
I just use my rig on the shortwave bands.
What about the older rigs like Omni VI+?
Are they stable enough for PSK31?
Ken I am interested in having good enough stability, but I am not going
to worry about chasing something unnecessary, just for the sake of being
as good as technology permits. Since I have never operated any of these
modes requiring such stability, I am simply not in the picture. Time
for me to catch up, I guess.
In my ham world, contesting, most QSOs last only a few seconds and the
other station rarely hits my exact frequency anyway.
Even the old VFO rigs were good enough for that!
I guess my attitude can be defined as, "I want my rig to be good enough,
but I don't need to be holier than the pope." (hi)
73
Rick
Ken N9VV wrote:
>Sorry Rick, I don't have the spec for PSK31, but common practice
>requires that your signal vary only a few Hz (if at all). In fairness,
>there are instabilities in sound cards that can cause drift too.
>
>Another benchmark is to speak with the ESSB guys on 3615 or 14.178. I
>believe you will hear from them that any drift greater than a few Hz is
>immediately noticeable from their perspectives and trained HiFi ears.
>
>Alan Davis K2WS offers an OCXO upgrade for the Flex-Radio SDR-1000 for
>just that reason: http://www.n9vv.com/K2WS-OCXO.html
>
>How about if you are transmitting into a TRANSVERTER that gets you from
>10M to 10Ghz. I wonder what the 50hz drift could be, when multiplied by
>the Ghz equipment?
>
>Ken
>
>
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