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AM Receivers
152
AM Audio Distortion Measurement
Description
This procedure is used to measure an AM Receiver’s audio distortion.
Distortion is measured at full rated audio output and 17 dB below full
rated audio output. Measurement is read directly from the Test Set
screen.
DUPLEXTXRX PREV TESTS
CO NFIGHELPMSSG HOLD PRINT
SCREEN CONTROL
LOCAL
ADRS
REC ALL
SAVE
MEAS
RES ET
PRESET
INSTRUMENT STATE
DATA FUNCTIONS
INCR
: 10
REF SET
INCR
SET
METER
INCR X10
AVG
LO LIMIT HI LIMIT
CURSOR CONTROL
PUSH TO SELECT
CA NCEL
SHIFT
k1
k1’
k2
k2’
k3
k3’
k4
ASSIGN
k5
RELEASE
USER DATA
789
456
123
0
+
_
ENTER
GHz
dBm
dB
MHz
V
%
kH z
mV
s
Hz
µV
ms
%
dBµV
Ω
ppm
W
NO
ON/OFF
YES
MEMORY
CAR D
AUDIO IN
LOHI
!
MAX
42 v Pk
!
MAX
12 v P k
AUDIO OUTSQUELCHVO LUMEMIC/ACC
MAX PO WER 200 mW
!
ANT INDUPLEX OUTRF IN/OUT
!
MA X POWER 60 W
CONTINUOUS
POWER
OFF O N
1
2
Data Entry
RX TEST
50Ω COXIAL
CABLE
TEST LOAD
RECEIVER UNDER TEST
ANTENNA (RF OUT)
SPEAKER
(AUDIO
INPUT)
3
+
GND
Knob
Keys