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2.3.1.1
AI011 Power Input Connector and Voltage Selector/Fuse Block Assembly
This multi-function assembly contains a three prong male power receptacle for attaching
the power input cable, W18; hinged plastic FUSE PULL lever; line voltage select PC wafer and line
fuse. Fl. The power input cable is type BELDEN 17250. CAUTION: Verify that the PC wafer in
A I 0 11 on receiver rear panel matches available line vol tage.
2.3.1.2
RF IN 11 Connector
The RF input from the antenna to the Receiver is made through the rear panel connector,
J I. This connector
is
a standard N-type female connector and will mate with any standard N-ty'j)e.
male connector. The input impedance at the connector is 50 ohms, unbalanced, with a VSWR of
2:
lover the operating frequency range of the Receiver.
2.3.1.3
IF
OUT J2 Connector
The second IF output signal at 455 kHz is supplied by this female BNC-type connector
which will mate with any standard male BNC-type connector. The output signal level at the connec-
tor is -10 dBm ±5 dB for all CW input signals within the range of -107 dBm to +13 dBm with
AGC selected. The impedance of the IF output is 50 ohms with a VSWR of 1.5: 1.
2.3.1.4
AF OUT 13 Connector
This rear panel output connector is a 25-pin D-type connector providing audio, AGC and
fault status outputs.' The audio output frequency response at this connector is within
3
dB between
frequencies of 100 Hzand 16kHz. The fo1l6wirig.audio outputs are available:
1. Loudspeaker Output. An unbalanced output capable of
<
3% distortion at 500 mW
for
I
W nominal into an
8
ohm load .
..,
Monitor Line Output.
A
metered line output for receivers which do not contain the
ISB option. Provides a I mW output at 600 ohms. The amplitude level is adjustable
from the front panel.
3.
Line
I.
Line output for non-operating ISB mode when the ISB is installed. Output
is 1 mW at 600 ohms balanced.
4. Line 2. Line output for the LSB component in the ISB operating mode. Output is 1
mW at 600 ohms balanced.
5. PHONES. This unbalanced output is capable of 10 mW at 600 ohms and is available
through a front panel jack.
If the Receiver is not equipped for IS'B operation, the Line 1 and Line 2 outputs are not
used. The Monitor Line output. Loudspeaker output, and the front panel PHONES jack provide the
audio output for the Receiver for all operating modes. When the Receiver is equipped for tind is
operating in the ISB mode, the Line
I
output
will
contain the USB audio and the Line
2
output will
contain the LSB audio. The Monitor Line and Loudspeaker outputs, along with the front panel
PHONES jack will provide either USB or LSB audio as controlled by the front panel ISB UjL
pushbutton. With the Receiver equipped for ISB operation but not operating in the ISB mode. the
2-5
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