User's Guide

T6T 50 W VHF Transmitter Page 23 Maintenance
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(8) With the Confirm screen displayed and dummy load connected, select Y
es to continue with the
calibrate routine. The Progress screen will then be displayed.
(9) When the PA Control/PA loop has been calibrated the Progress screen disappears and the VFP
screen reappears showing a calibration complete message in the Status Information window.
(10) Gain access to the PA Control module and identify RV8 (see component layout diagram on
page 24). From the transmitter’s front panel AM-Voice or AM-MSK Settings screen, select PTT
On.
(11) From the Settings pane of the VFP screen, note the RF power setting. Adjust RV8 until the power
meter reads this value.
(12) From the transmitter’s front panel AM-Voice or AM-MSK Settings screen select PTT Off, then
remove the power meter and dummy load. This completes the calibration routine.
(13) When there is no further requirement for using the VFP, exit the VFP software and disconnect
the radio from the PC.