AM Transmitters

119

AM Off The Air Monitoring/Determining Unknown Transmitter Carrier Fre-quency
Description

This procedure is used to locate, demodulate, and measure an AM

signal’s output carrier frequency. The low level signal is input to the

front-panel ANT IN connector, located, then demodulated using the

spectrum analyzer function.

NOTE: For Performing an AM Off the Air Monitoring on a Known Transmitter

Carrier Frequency, page 121.

If attempting to determine the unknown frequency of a Transmitter connected

to the RF IN/OUT connector, see “Output Power, Deviation, and Frequency

or Frequency Error Measurement” provided later in this chapter for the

measurement procedure.

DUPLEXTXRX PREV TESTS
CONFIGHELPMSSG HOLD PRINT
SCREEN CONTROL
LOCAL
ADRS
RECALL
SAVE
MEAS
RESET PRESET
INSTRUMENT STATE
DATA FUNCTIONS
INCR
: 10
REF SET
INCR
SET
METER
INCR X10
AVG
LO LIMIT HI LIMIT
CURSOR CONTROL
PUSH TO SELECT
CANCEL
SHIFT
k1
k1’
k2
k2’
k3
k3’
k4
ASSIGN
k5
RELEASE
USER DATA
789
456
123
0+
_
ENTER
GHz
dBm
dB
MHz
V
%
kHz
mV
s
Hz
µV
ms
%
dBµV
Ω
ppm
W
NO
ON/OFF
YES
MEMORY
CARD
AUDIO IN LOHI
!MAX
42 v Pk
!MAX
12 v Pk
AUDIO OUTSQUELCHVOLUMEMIC/ACC
MAX POWER 200 mW
!
ANT INDUPLEX OUTRF IN/OUT
!MAX POWER 60 W
CONTINUOUS
POWER
OFF ON
1
2
Knob
SPECTRUM ANALYZER
Data Entry
Keys