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Old 16th Aug 2019, 4:52 pm   #4
baumfred
Retired Dormant Member
 
Join Date: Aug 2019
Location: Wels, Austria.
Posts: 4
Default Re: Kenwood TR-9130 problem with PA

Quote:
Originally Posted by Sean Williams View Post
Problem in the TX/RX changeover circuit?

What sort of current is the unit consuming on transmit?

Can you try attaching a coax tail direct from the PA section to a power meter?
-- The unit takes in Rx 0,5A and in TX 0,58A.

-- I measured the output on the module with the 150Mhz scope, and it shows 2,5Vpp.
I also tested all capacitors and diodes and so on. There is no fault.

Quote:
Originally Posted by G6Tanuki View Post
Is there any easy way you can measure the current the module is taking?

I gather that the Mitsubishi PA modules available on the open market are quite often fakes!
-- The unit takes in Rx 0,5A and in TX 0,58A
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