d. Wideband/Narrowband Selection
1. Remove snap-on cover.
2. For wideband operation, set WB-NB-MEM
LOAD switch to WB.
3. For narrowband operation, set WB-NB-MEM
LOAD switch to NB.
The switch shall be placed in the WB posi-
tion at any time the MEM LOAD function is
not being accomplished. The NB position is
not used in this installation.
e. Band Lockout Selection.
1. Remove snap on cover.
With the LOCKOUT-AM-FM switch set to
AM or FM, the frequency of the band se-
lected will be locked out. This will cause an
audible warning to occur whenever a fre-
quency in a locked out band is selected. For
this installation, operational AM and FM
bands are required and the LOCKOUT-AM-
FM switch must be set to the LOCKOUT
2. Ensure LOCKOUT-FM-AM switch is in LOCK-
OUT position (indicated by a white dot on the
3.7 RADIO SET RT-1167C/ARC-164(V) AND HAVE
Receiver-Transmitter RT-1167/ARC-164 (fig 3-5) is an air-
borne, (UHF), (AM), radio transmitter-receiver (transceiv-
er) set. It is a multi-channel, electronically-tunable trans-
ceiver with a fixed-tuned guard receiver. The transceiver
operates on any one of 7,000 channels spaced in 0.025
MHz units in the 225.000 to 399.975 MHz frequency
range. The guard receiver is on a permanent guard/emer-
gency frequency of 243.000 MHz. The radio set primarily
is used for voice communication. An additional radio set
capability, although not functional, is ADF. The radio set
receives 28 vdc from the emergency dc bus through the
UHF AM circuit breaker on the pilot overhead circuit
Receiver-Transmitter RT-1167C/ARC-164 has the same
functions and capabilities as the RT-1167/ARC-164 plus a
HAVE-QUICK (HQ) mode of operation which provides an
electronic counter counter measures (ECCM) frequency
hopping capability. Radios with the HQ capability have fre-
quency selector 1 on the extreme left of the front panel la-
beled A-3-2-T (fig 3-5). The single frequency mode of op-
eration is referred to as the normal mode and the
frequency hopping mode of operation is referred to as the
anti-jam (AJ) or ECCM active mode.
(BEHIND HINGED COVER)
RT-1167 RADIO RECEIVER-TRANSMITTER
DOES NOT HAVE A-3-2-T SWITCH FOR
FREQUENCY SELECTOR 1
Receiver-Transmitter Radio, RT-1167C/ARC-164(V)