Icom IC-7800 Instruction Manual - Page 80

Repeater operation - hf transceiver

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4 RECEIVE AND TRANSMIT I Repeater operation [SPLIT] indicator Band keys [V/M] [AM/FM] [XFC] Main dial [SPLIT] D Repeater tone frequency setting [TONE] [F-4•DEF] [F-1•Y] [F-2•Z] [AM/FM] Main dial A repeater amplifies received signals and retransmits them at a different frequency. When using a repeater, the transmit frequency is shifted from the receive frequency by an offset frequency. A repeater can be accessed using split frequency operation with the shift frequency set to the repeater's offset frequency. For accessing a repeater which requires a repeater tone, set the repeater tone frequency in tone frequency set mode as described below. q Set the offset frequencies (HF, 50 MHz) and turn ON the quick split function in miscellaneous (others) set mode in advance. (p. 12-15) w Push [V/M] to select VFO mode. e Push the desired band key. r Push [AM/FM] several times to select FM mode. t Set the receive frequency (repeater output fre- quency). y Push [SPLIT] for 1 sec. to start repeater operation. • Repeater tone is turned ON automatically. • [SPLIT] indicator lights and " " appears on the LCD. • Shifted transmit frequency and "TX" appear in the sub band. • The transmit frequency can be monitored while pushing [XFC] or using dualwatch. u Push and hold [PTT] to transmit; release [PTT] to receive. i To return to simplex, push [SPLIT] momentarily. Some repeaters require subaudible tones to be accessed. Subaudible tones are superimposed over your normal signal and must be set in advance. The transceiver has 50 tones from 67.0 Hz to 254.1 Hz. q Select FM mode. w Push [TONE] for 1 sec. to tone frequency set mode. e Push [F-1•Y] or [F-2•Z] to select REPEATER TONE item. r Rotate the main dial to select the desired repeater tone frequency. • Push [F-4•DEF] for 1 sec. to select the default setting. t Push [EXIT/SET] to return to the previous indication. • Available tone frequencies (unit: Hz) 67.0 085.4 107.2 136.5 165.5 186.2 210.7 254.1 69.3 088.5 110.9 141.3 167.9 189.9 218.1 71.9 091.5 114.8 146.2 171.3 192.8 225.7 74.4 094.8 118.8 151.4 173.8 196.6 229.1 77.0 097.4 123.0 156.7 177.3 199.5 233.6 79.7 100.0 127.3 159.8 179.9 203.5 241.8 82.5 103.5 131.8 162.2 183.5 206.5 250.3 4-32

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4-32
■
Repeater operation
A repeater amplifies received signals and retransmits
them at a different frequency. When using a repeater,
the transmit frequency is shifted from the receive fre-
quency by an offset frequency. A repeater can be ac-
cessed using split frequency operation with the shift
frequency set to the repeater’s offset frequency.
For accessing a repeater which requires a repeater
tone, set the repeater tone frequency in tone fre-
quency set mode as described below.
q
Set the offset frequencies (HF, 50 MHz) and turn
ON the quick split function in miscellaneous (others)
set mode in advance. (p. 12-15)
w
Push [V/M] to select VFO mode.
e
Push the desired band key.
r
Push [AM/FM] several times to select FM mode.
t
Set the receive frequency (repeater output fre-
quency).
y
Push [SPLIT] for 1 sec. to start repeater operation.
• Repeater tone is turned ON automatically.
• [SPLIT] indicator lights and “
” appears on the
LCD.
• Shifted transmit frequency and “TX” appear in the sub
band.
• The transmit frequency can be monitored while pushing
[XFC] or using dualwatch.
u
Push and hold [PTT] to transmit; release [PTT] to
receive.
i
To return to simplex, push [SPLIT] momentarily.
D
Repeater tone frequency setting
Some repeaters require subaudible tones to be ac-
cessed. Subaudible tones are superimposed over your
normal signal and must be set in advance. The trans-
ceiver has 50 tones from 67.0 Hz to 254.1 Hz.
q
Select FM mode.
w
Push [TONE] for 1 sec. to tone frequency set mode.
e
Push [F-1•
Y
] or [F-2•
Z
] to select REPEATER
TONE item.
r
Rotate the main dial to select the desired repeater
tone frequency.
• Push [F-4•DEF] for 1 sec. to select the default setting.
t
Push [EXIT/SET] to return to the previous indica-
tion.
•
Available tone frequencies
(unit: Hz)
[AM/FM]
[F-1
•
Y
] [F-2
•
Z
]
Main dial
[F-4
•
DEF]
[TONE]
[V/M]
[AM/FM]
[XFC]
[SPLIT]
Main dial
Band keys
[SPLIT] indicator
4
RECEIVE AND TRANSMIT
67.0
69.3
71.9
74.4
77.0
79.7
82.5
0
85.4
0
88.5
0
91.5
0
94.8
0
97.4
100.0
103.5
107.2
110.9
114.8
118.8
123.0
127.3
131.8
136.5
141.3
146.2
151.4
156.7
159.8
162.2
165.5
167.9
171.3
173.8
177.3
179.9
183.5
186.2
189.9
192.8
196.6
199.5
203.5
206.5
210.7
218.1
225.7
229.1
233.6
241.8
250.3
254.1