On Tue,4/14/2015 2:50 PM, John Bescher via TenTec wrote:
Is there a way, besides on site testing, to tell whether a rig is suitable for
multiple station Field Day?
Yes. Study my summary of ARRL Lab Tests of the TX cleanliness of a dozen
or so medium to high priced modern rigs.
k9yc.com/TXNoise.pdf
Look for rigs with very low TX phase noise in the wide plots. I haven't
added the new Flex 6000-series rigs yet, but the 6500 and 6700 are good
performers for phase noise. Also study Rob Sherwood's comparison of
receivers for handling strong signals.
http://www.sherweng.com/table.html
Phase noise is that "rushing" sound you hear off frequency when a strong
signal is being keyed. Both TX and RX have it -- we hear it because the
other guy is TXing it, and also because our RX contributes its own phase
noise. :) You want rigs that score well both ways.
73, Jim K9YC
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