Table of Contents
Advertisement
Technical Manual
Remove link from TR2. Measure current consumption, adjust RV1 so that
current is 2Amp total (VHF & UHF). Measure gate volts ≈ 3.9V
♦
Connect the RF output Connector CN3 with a coax lead to a power meter. Turn
ON the supply voltage and the signal generator RF output, PTT the PA and
increase the generator output (Don't exceed +24 dBm) whilst measuring the
output power output (≥50watts@ +25dBM ).
♦
If output power is low then turn the supply voltage OFF and lift one side of the
capacitors connecting to the directional coupler and solder a flying lead to the
lifted side. Connect the earth of the flying lead to the earth of the PA..
♦
Turn ON the supply voltage and the signal generator RF output, PTT the PA and
increase the generator output (Don't exceed +24 dBm) whilst measuring the
output power output (≥55watts@ +25dBM ).
♦
If all the above tests didn't pass then the TR1 or TR2 may be faulty. Return to
your nearest Customer Service Centre
© SPECTRA ENGINEERING 2003 Revision 1.1.4
Installation and Operation
25
Advertisement
Table of Contents
