Nautel XL12, Technical Instructions

Page: 78 / 238

12 000 WATT AM BROADCAST TRANSMITTER
XL12
Page 3-17
01 January 2002
Table 3-1 Control/Monitor Panel Controls and Indicators (Continued)
PANEL MARKING/
REF FIG NOMENCLATURE FUNCTION
DES NO. USED IN TEXT
A1A4R29 MD-3
n RF PWR 4
Adjusted, in conjunction with selection of the remote
interface PWB's E22/E23 shunt posts, to set the RF monitor
output to 5.0 volts rms (14.14 volts peak-to-peak) when
preset RF power level 4 is selected (
CONTROL - RF POWER
4
switch's integral lamp is on) and the RF output is the
desired level. Refer to paragraph 2.4.5.3 for adjustment
procedure.
A1A4R30 MD-3
n
RF PWR 5
Adjusted, in conjunction with selection of the remote
interface PWB's E24/E25 shunt posts, to set the RF monitor
output to 5.0 volts rms (14.14 volts peak-to-peak) when
preset RF power level 5 is selected (
CONTROL - RF POWER
5
switch's integral lamp is on) and the RF output is the
desired level. Refer to paragraph 2.4.5.3 for adjustment
procedure.
A1A4R31 MD-3
n
RF PWR 6
Adjusted, in conjunction with selection of the remote
interface PWB's E26/E27 shunt posts, to set the RF monitor
output to 5.0 volts rms (14.14 volts peak-to-peak) when
preset RF power level 6 is selected (
CONTROL - RF POWER
3
switch's integral lamp is on) and the RF output is the
desired level. Refer to paragraph 2.4.5.3 for adjustment
procedure.
A1M1 MD-3
RF KILOWATTS
Displays RF output parameter (forward or reflected power)
selected by the associated
SELECT METER SCALE
switch
when enabled (
STATUS CONTROL - METER ON/OFF
switch's integral lamp is on). Upper scale is read when
forward power is selected (
FORWARD POWER
lamp on).
Lower scale is read when reflected power is selected
(
REFLECTED POWER
lamp on).
A1M2 MD-3
DC AMPERES
Displays DC current flowing thru the current shunt to the
RF power modules from the AC/DC power supply's B+
VDC power supplies when enabled (
STATUS CONTROL -
METER ON/OFF
switch's integral lamp is on).