[1000mp] Antenna Relay A/B

[Thomas Otterbein]

Hi all....

Due to the past discussion about relay problems at the rf-unit, 
disconnecting antenna from transceiver input etc. I checked the 
relays behavior of the antenna relays for the A- and B-antenna 
input of the FT1000MP MkV Field

I thought, switching off the transceiver, will both ground or 
just disconnect the A and B-input from the transceivers rf-unit.

But it didn't act in this way.

Operating the transceiver and selecting the A- or B-antenna input, 
the not used input is grounded. But when you switch off the 
transceiver, always the A-antenna input is connected to the rf-unit 
and the B-antenna input is always grounded. Independently what 
antenna (A or B) you select before during the transceiver 
was switched on.
When power off, always B-antenna input is grounded and A-input is 
connected to the rf-unit.

Would it not be better to ground both antenna inputs or just disconnect 
it from the rf-unit, when the transceiver is switched of?


73!
Thomas
DG8FBV
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www.dg8fbv.de