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13.
OUTPUT SELECT Switch A1SIO. AUDIO' Jack AIJ6 and SCOPE Jack A1J7
provide distortion measuring outputs and scope observation output.
Switch
AISIO
in
FT/CHAN A position provides left deemphasized audio with
a
cutoff
frequency of 15KHz for
5
distortion measurements at AIJ6 and whatever
is displayed on the CHANNEL A meter at AIJ7 for scope observation.
When
AISIO is in RIGHT/CHAN
B
position, right audio is provided at AIJ6 and
Channel B signal appears at AIJ7.
14.
SeA Audio Jack AIJ8 provides 150usec deemphasized 5KHz bandwidth
SeA audio for distortion measurements.
15.
TEST DISPLAYS (CHANNEL A - green) (CHANNEL B - blue) and DISPLAY
SELECT switch AISII
a.
DISPLAY SELECT switch controls the s;gna1 componen
to be
displayed.
b.
Meters AIM2A and A1M2B in conjunction with +/- switches
AlS13A and AlS13B, MOD; HOLD:
AUTO switches AlS14A and AlS14B and RANGE
(-dB) readouts AIDS5A and AIDS5B provi
two metering displays with a
range of 0 to 133% with FCC ballistics (MOD posi
on) or -70dB to +3dB
with semi VU ballistics (AUTO or HOLD posi
on).
These displays may be
switched to
+
or - indications and may be deemphasized by pushbuttons
A2S15A or AlS15B.
NOTE:
FM and AM S/N are automatically deemphasized.
c.
PEAK thumbwheels AlS12A
and
A1S12B and leds A1CR6A and A1CR6B
provide a peak indication of the corresponding meter display settable in
incremen
from 0 to 199%.
OPERATOR CONTROL AND CONNECTIONS (REAR PANEL)
2.
RF INPUT Jack AIJIO - Transmitter RF sample connects to this jack.
3.
CARRI
LEVEL Control AIR2 - This control is used to reduce RF
Input below RF HI threshold.
4.
ANT Jack AIJll - 75 ohm FM Antenna
to this jack.
5.
X.O. OUT Jack AIJ12 - 8MHz sample from crys
1
reference oscillator
is
available
this
jack for measurement purposes.
6.
S.A. CENTER Control A1R3 - Control used to center Spectrum Analyzer
splay.
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