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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