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4. PRESET Button - Lift preset frequency label
cover and push PRESET button. Listen for a
single beep.
5. Function Selector switch - MANUAL.
6. CHAN Switch - Set to appropriate memory
location (Channels 20 to 5).
7. Frequency Switches - Set to select first
frequency.
8. TONE Button - Press TONE and release.
Repeat steps 6 through 8 until all frequencies are loaded.
9. Frequency Switches - Set to 220.000 MHz when
all frequencies have been loaded.
10. CHAN Switch - Set to Channel 20.
11. Function Selector switch - PRESET.
12. PRESET Button - Lift preset frequency label
cover and push PRESET button.
Change 3 3-18.5
TM 1-1520-238-10
3.7B RADIO SET RT-1518C/ARC-164 HAVEQUICK II
(HQ II) RADIO
The RT-1518C/ARC-164 HQ II radio provides a Liquid
Crystal Display (LCD) (Green Lt) for channel, frequency
indicators, and operator prompts; a zeroize switch
feature; and an electronic Fill Port data loading capability.
3.7B.1 Antenna. The UHF-AM antenna (fig 3-1) is located
on the bottom center fuselage area and is
mounted directly aft of the Doppler fairing.
3.7B.2 Controls and Functions. Controls for the RT-
1518C/ARC-164 are on the front panel of the unit (fig 3-
7). The function of each control is described in table 3-6.
CAUTION]
The AN/ARC-164 radio must be placed in the
VERIFY/OPERATE mode before operating in the Have
Quick mode. This will prevent the radio from locking up
and damaging the equipment.
3.7B.3 Modes of Operation.
a. Power Up. All segments of both displays light up
momentarily on power up and a series of beeps may be
heard. If the frequency/status indicator displays a frequency
after power up, the radio is in the VERIFY/OPERATE
mode. Proceed to step 5. If M-LOAD,
FMT.CHG or ERASE is displayed, proceed as follows:
1. CHAN switch - Set to channel 20.
2. Frequency switches - Set to 220.000 on the
frequency/status indicator.
3. Function Selector switch - PRESET.
4. Lift access cover and press LOAD button. The
radio is now in the VERIFY/OPERATE mode.
5. Function Selector switch - MNL or PRESET
6. Select desired frequency or channel.
7. Mode Selector Switch - OFF
b. Normal Operation. The radio set has the
following modes of operation:
(1) MAIN mode: Two-way voice
communication.
(2) BOTH mode: Allows using the main transceiver with
constant monitoring of the guard receiver.
(3) GUARD (GRD) mode: Allows transmission and
reception on guard frequency.
(4) Manual (MNL) Mode: Single frequency used.
Figure 3-7. Receiver-Transmitter Radio, RT-1518C/ARC-164 3-18.6 Change 3
3-18.6 Change 3
TM 1-1520-238-10
Table 3-6. RT-1518C/ARC-164 Controls and Functions
Control Function
Frequency/Status Displays individual frequency switch settings or any of the following operator prompts:
Indicator
VER/OP- indicates radio is in normal operating mode.
M-LOAD -indicates radio is in MWOD load mode.
ERASE- indicates radio is in MWOD erase mode.
FMT.CHG - radio is in Frequency Management Training Change mode.
FILL - indicates a keyfill device is connected to the FILL port.
WOD OK - indicates valid WOD was received from keyfill device.
BAD - indicates bad WOD or parity was received from keyfill device.
CHAN Indicator Channel display indicator
Preset Channel Selects one of 20 preset channels.
Selector Switch
STATUS Switch When depressed, an alternate display is shown on the frequency/status indicator for five
seconds.
Frequency Switches Rotary switches that select the corresponding hundreds, tens, units, tenths, and
thousandths digits for the desired frequency in the normal mode, and the desired WOD
elements or net number in the anti-jamming mode. The A position puts the radio in to
the anti-jamming frequency-hopping mode of operation when selected.
Function Selector Three position switch (MNL, PRESET, GRD) which selects the main transmitter and
Switch receiver frequency. In Manual (MNL) frequency is manually selected using five rotary
switches. The PRESET position allows selection of one of twenty preset frequencies
using the rotary channel selector switch. The GRD position tunes the receiver and
transmitter to emergency frequency 243.000MHz.
SQUELCH Enables and disables squelch of the main receiver.
ON/OFF
VOL Control Knob Rotary knob used to set receiver volume. Does not control transmitter output.
T - TONE Switch Three position toggle switch with two position being spring loaded; the middle position
being off. When TONE is selected, a tone is transmitted on the selected frequency.
When
placed in the T position, reception of the TOD is enabled for one minute.
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