HTX-400 Mini Handheld 70-Centimeter FM Amateur Transceiver
(190-1104) Special Features Faxback Doc. # 61417
Changing The Transmit Frequency Range
You can change the standard transmit frequency range from 430-450 MHz to
an extended range of 420-450 MHz.
To set the transceiver to its extended range, turn off the transceiver,
then hold down SC and turn on the transceiver again.
To return to the standard frequency range, turn off the transceiver, then
hold down SC and turn it on again.
Locking The Keypad
To lock the transceiver's keypad so you do not accidentally change a
setting, press FUNC + LOCK. (key symbol) appears. This locks all buttons
except PTT, *, VOL, and SQ.
To unlock the keypad, press FUNC + LOCK again.
Lighting The Display
Press (*) to turn on the display's backlight for about 4 seconds. If you
press any key while the light is on, the light remains on for about 4
seconds more. Hold down (*) for at least 1 second to have the light remain
on until you press (*) again.
Turning The Key Tone On And Off
The transceiver is preset to sound a beep each time you press a key. To
turn off the beep, press FUNC + (*)(BEEP). (Musical Symbol) disappears.
To restore the key tone, press FUNC + (*)(BEEP) again.
Note: If the key tone feature is disabled, the power-on tone does not
sound.
Checking The Current Memory Settings
If you hold down MO (REV) for longer than 1 second, the squelch opens and
the set values for receive tone (rT on/off), transmit tone (tt on/off),
scan skip condition (SCSP)(if any), repeater offset (rPt), and frequency
step (CS) appear.
Release MO (REV) to turn on the squelch again.
Setting The Frequency Step
To change the frequency increment used during scanning and stepping to a
frequency, use the Main Menu to access the CS option setting (see "Using
the HTX-400's Menus" in Faxback Doc. # 61413). Then repeatedly press /\
or \/ until you reach the desired setting. You can change the frequency
step to 5 kHz, 10 kHz, 12.5 kHz, 15 kHz, 20 kHz, 25 kHz, 50 kHz, or 1 MHz.
(The example shown here is 25 kHz.)
__________
| |
| CO .0250 |
|__________|
Power Save
The power save feature lets the radio conserve battery power by turning
off power to the receiver section and periodically turning it on to check
for a transmission. Use the Main Menu to set the power save option (see
"Using the HTX-400's Menus" in Faxback Doc. # 61413). With PS and the
current status (on or oFF) displayed, press /\ or \/ to turn this feature
on or off. ________
| |
| PS oFF |
|________|
Time-Out Timer
When you communicate using repeaters, keep your transmissions as brief as
possible. Most repeaters have built-in timers that limit single
transmissions to 3 minutes or less.. You can set the transceiver to stop
transmitting and sound a beep if you exceed a set time limit with a single
transmission.
Use the Main Menu (see "Using the HTX-400's Menus" in Faxback Doc. #
61413) to set a value for the time-out timer. With tot and the current
setting displayed, press /\ or \/ to choose a value from 0 to 990 seconds.
_________
| |
| tot-oFF |
|_________|
Reducing Squelch Tail
If you are communicating with a repeater or another station using
subaudible tones, you can eliminate the squelch tail (the burst of noise
the other person hears when you stop transmitting) by turning on the
transmit delay option. When you turn on this feature and use CTCSS, the
radio continues to transmit for a short period of time after you release
PTT, but then it immediately drops the subaudible tone. This causes the
other radio to close the squelch before there is "dead air," preventing
the squelch tail.
Use the Main Menu (see "Using the HTX-400's Menus" in Faxback Doc. #
61413) to set the transmit delay option. Then, with t.dy and the current
status displayed, press /\ or \/ to turn this feature on or off.
_________
| |
| t_dy-on |
|_________|
Busy Channel Lockout
Use the Main Menu to set the busy channel lockout (see "Using the HTX
400's Menus" in Faxback Doc. # 61413). The lockout prevents the
transceiver from transmitting while it is receiving a signal. With the
radio's preset value (bCLO oF) displayed, press /\ or \/ to change the
display to (bCLO oN). Repeat this step to change the display back to
(bCLO oF) to disable the lockout.
_________
| |
| bCLO-oF |
|_________|
(BR EB 8/30/00)
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