Icom Ic-207h Vhf Uhf Tranciever Instruction Manual

13WIRELESS OPERATION
56
DKeypad
KEYFUNCTIONSECONDARY FUNCTION (After )FUNCOTHER FUNCTIONS
Calls up a call channel.No secondary function.
•After :
Input the appropriate digit
for frequency or memory
channel selection.
•After :
Transmit the appropriate
DTMF code.
•After :
Transmit the appropriate
DTMF memory contents.
[0] to [9], [A] to [D] can be
used for DTMF memory.
DTMF
MEMO
DTMF
KEY
D ENT DEMO
Selects memory mode.No secondary function.
Selects VFO mode.Turns the one-touch PTT function ON
and OFF....

13WIRELESS OPERATION
57
KEYFUNCTIONSECONDARY FUNCTION (After )FUNCOTHER FUNCTIONS
Clears a digit before entry.
Cancels the scan, priority watch, or
DTMF memory function.Writes the VFO contents into the memory
channel or call channel.
Advances the memory channel number
when continuously pushed after program-
ming is completed.
•After :
Transmit the appropriate
DTMF code.
[B
MONI]
Transmits a 1750 Hz tone
call signal for 0.5 sec.
[A
SQL]
Transmits a 1750 Hz tone
call signal while pushing.DTMF
KEYEnters set...

13WIRELESS OPERATION
58
Microphone
address
The transceiver has 8 possible microphone addresses (in-
cluding OFF) to help prevent interference from other HM-90
WIRELESS MICROPHONES. Set both the microphone address
and microphone dip switch to the same value as follows.
NOTE:When the supplied microphone is connected, the
transceiver rejects control signals from the HM-90 even
when the microphone address is matched.
DMicrophone address
➀Push [PWR] to turn power OFF.
➁While pushing [SET], turn power ON to...

OTHER FUNCTIONS14
59
Beep tones on/off
You can select silent operation by turning beep tones OFF or
you can select to have confirmation beeps sound at the push
of a switch by turning beep tones ON.
➀Push [PWR] to turn power OFF.
➁While pushing [SET], turn power ON to enter initial set
mode.
➂Push [SET] one or more times until “bEP” appears.
•Pushing [MONI] reverses the order of selection.
➃Rotate the tuning dial to
select the condition.
•“bEP-oF”: Beep tones are
turned OFF.
•“bEP-on”: Beep tones are...

14OTHER FUNCTIONS
60
Auto power-off
The auto power-off function conveniently turns the transceiver
power OFF after a preset time in which no operations are per-
formed. In this way, when you forget to turn the power OFF,
the transceiver automatically turns itself OFF, thereby con-
serving battery power.
The time can be set to 30 min., 1 hr., 2 hrs. or turned OFF.
The selected time is retained even when the transceiver is
turned OFF via the auto power-off function. To cancel the
function, select “oF” in...

14OTHER FUNCTIONS
61
Microphone [F-1]/[F-2] keys
Switches on the transceiver’s front panel can be assigned to
the microphone’s [F-1] and [F-2] keys.
➀Turn power OFF.
➁While pushing the desired switch on the transceiver and
[F-1] or [F-2] on the microphone, turn power ON.
•The switches’ function is programmed into the key ([F-1] or [F-2]).
•Default setting
The following functions are assigned to the [F-1]/[F-2] keys
when first applying power or after CPU resetting:
[F-1]: selects output power; push and...

14OTHER FUNCTIONS
62
Squelch delay
During operation, received signal strength often fluctuates.
This can result in annoying repeated opening and closing of
the squelch during reception of the same signal. The IC-207H
has a built-in squelch delay function which helps prevent this.
When both stations are operating from a fixed location, this
function should be set to “short” e.g. packet operation.
➀Push [PWR] to turn power OFF.
➁While pushing [SET], turn power ON to enter initial set
mode.
➂Push [SET] one...

14OTHER FUNCTIONS
63
Packet operation
DData speed
For packet operation the transceiver can be set to one of two
data speeds: 1200 bps (default) or 9600 bps.
➀Push [PWR] to turn power OFF.
➁While pushing [SET], turn power ON to enter initial set
mode.
➂Push [SET] one or more times until “bPS” appears.
•Pushing [MONI] reverses the order of selection.
➃Rotate the tuning dial to
select the desired data
speed.
➄Push [PWR] momentarily to exit initial set mode.
USINGINITIAL SET MODE
The display shows the data...

NOTE:
•Read the instructions supplied with your TNC carefully
before attempting packet operation with the IC-207H.
•Pin tAF OUT is for 1200 bps operation only. This pin
cannot be used for 9600 bps operation.
•Over modulation may degrade signal quality. If you find
that many transmissions are failing, re-adjust the modu-
lation level.
14OTHER FUNCTIONS
64
D1200 bps packet operation
qConnect the IC-207H and a TNC as illustrated below.
wSet the TNC for transmit.
eSet transmit delay on the TNC to 30–50....

14OTHER FUNCTIONS
65NOTE:
•When using the PTTP terminal for packet operation, no
voice signals are transmitted from the microphone.
•When pushing [PTT] during data transmission, data
transmission is interrupted and the voice signal takes pri-
ority.
•Read the instructions supplied with your TNC carefully
before attempting packet operation with the IC-207H.
•Pin rDATA OUT is for 9600 bps operation only. This pin
cannot be used for 1200 bps operation.
D9600 bps high speed packet operation
The IC-207H...