How to make use of that expensive analyzer you just bought.
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How to make use of that expensive analyzer you just bought
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Transcript of How to make use of that expensive analyzer you just bought.
Compensation for VSWR(2 meters and below)
RCV (normally closed)
Xmit (normally open)
Antenna (common)
5pf mica1kv
5pf mica1kv
Return loss (SWR)
VSWR (return loss) is another problem that gets worse as the frequency increases
•Uncompensated
•5pf added across NO and NC contacts
•Common port terminated in 50z
•Common port open
One of the biggest issues with these relays at VHF is isolation
The highest useful band appears to be 6 meters
Isolation
Compensation for poor isolation
RCV (normally closed)
Xmit (normally open)
Antenna (common)
5pf mica1kv
5pf mica1kv
650 nh
Resonant at 2m