TB 9-6625-2163
(6) Menu 16 SOURCE to LOW PWR, and RF to 0.
NOTE
Store initial menu setups in h(1) through (6) above by pressing
keys FUNC and 5 on keypad and choosing a memory location
at 1 through 4.
i. Press PUSH TO TEST switch and turn to LOCK position.
j. Perform a power measurement on RTS (on Menu 16 select POWER then press the
ENTER key on keypad. When reading is obtained press UP or DOWN ARROW on keypad
to stop measurement). TI ACCEPT light will glow.
a. Performance Check
(1) On RTS select Menu 11 and decrease RF power until the REJECT light glows.
(2) Increase RF power until ACCEPT light just triggers ON.
(3) Set Menu 11 CW selection to ON. Move cable from PROBE connector to peak
power meter and take a reading. If reading is not between 8 and 10 dBm, perform b
below.
(4) On Menu 11 set CW to OFF. Disconnect cable from peak power meter and
reconnect to PROBE connector.
(5) Increase Menu 11 RF power by 3 dBm. The ACCEPT light will glow.
b. Adjustments
(1) Install variable attenuator between RTS Main RF I/O connector and circulator
PORT 1. Set Menu 11 RF power to 0 dBm and adjust variable attenuator for -9 dBm on
peak power meter.
(2) On Menu 11 set CW to OFF.
(3) Disconnect cable from peak power meter and reconnect to TI Probe connector.
Adjust A8R5 (fig. 2) until ACCEPT light glows. Decrease RTS RF power by 1 dBm. TI
REJECT indicator will glow.
(4) Remove variable attenuator and reconnect circulator to MAIN RF I/O.
(5) Repeat a(1) through (5).