HTX-212 Two-Meter Mobile Transceiver
(190-1126) Operation FaxBack Doc. #19148
Turning On/Off Your HTX-242
To turn your HTX-242 on or off, press POWER. When you turn it on, all
display elements briefly turn on and the HTX-242 sounds five tones. Then
it returns to the last-used settings.
Resetting the HTX-242
When you first use your HTX-242, if it displays PLL Err or EEP Err, or if
you ever want to reset the HTX-242 to the factory defaults and clear all
memory, follow these steps.
IMPORTANT: This procedure clears all stored information.
1. Turn off the HTX-242.
2. While holding down F+T-SQL, turn on the HTX-242. All display elements
stay on for about 1 second.
See extending the Transmit Frequency Range: (below) and "Using the Menu"
on Faxback Doc. #19150.
Extending the Transmit Frequency Range
The following are the HTX-242's default frequency ranges:
Transmit: 144.000 - 148.000 MHz
Receive: 136.000 - 174.000 MHz
IMPORTANT: Do not expand the transmit frequency coverage unless you are
licensed to operate on MARS or CAP frequencies.
To expand the transmit frequency coverage, hold down F+DTMF while you turn
on the HTX-242. The new frequency ranges are:
Transmit: 142.500 - 149.500 MHz
Receive: 136.000 - 174.000 MHz
NOTE: To return to the default frequency ranges, you must reset the
transceiver. See "Resetting the HTX-242".
Setting Volume and Squelch
SQUELCH sets the minimum signal level that must be present for the HTX-242
to amplify the signal through the speaker or to stop when scanning. Follow
these steps to set the squelch.
1. Rotate SQUELCH fully counterclockwise.
2. Set VOLUME so you can hear the background hiss between transmissions.
NOTE: If you do not hear hissing, turn TUNE/M-CH to select a frequency
that does not have communications in progress.
3. Slowly turn SQUELCH clockwise until the hissing stops.
If you turn SQUELCH too far clockwise, you might miss parts of
transmissions. If you do not turn SQUELCH far enough clockwise, you hear
hissing between transmissions and the HTX-242 might not scan properly.
Using the Light
Your HTX-242 has two display light levels. To switch between the two
levels, press F then DIM.
Setting the Power Level
Your HTX-242 has two transmit power levels. Low is about 10 watts, and
high is about 45 watts. To switch between the two power levels, press
LOW. LOW or HIGH appears on the display. The power setting is saved when
you store settings in memory.
Locking the Controls
To lock the controls on the microphone (except the push-to-talk button,
PTT), slide LOCK ON to the right. This does not lock the HTX-242's front
panel controls.
To lock all controls except POWER, VOLUME, SQUELCH, and the push-to-talk
button, press F then LOCK. LOCK appears on the display.
To unlock the controls, press F then LOCK again.
Selecting a Frequency
You can select a frequency in any of three ways:
Direct entry
Tuning
Scanning
Directly Entering a Frequency
1. Press VFO to select either VFO-A or VFO-B.
2. Enter the last five digits of the frequency. For example, to enter
145.050, simply press 45050.
NOTES: The HTX-242 rounds the last digit down to 5 or 0.
The HTX-242 does not accept entries outside its range.
If you have turned on the AS option, the HTX-242 automatically
selects the correct duplex offset for frequencies normally assigned
to repeaters and selects no offset for other frequencies. See
"Turning Auto Duplex On and Off" on Faxback Doc. #19147.
Tuning to a Frequency
1. Press VFO to select either VFO-A or VFO-B.
2. Rotate TUNE, or press UP or DOWN on the microphone, to step through
the frequencies.
NOTES: You can set the HTX-242 to step in 5, 10, 12.5, 20, 25, 50, or 100
kHz increments. The default is 20 kHz. See "Setting the Frequency
Step" on Faxback Doc. #19148.
To step in 1 MHz increments, press MHz. Press MHz again to
return to the previous frequency step.
If you have turned on the AS option, the HTX-242 automatically
selects the correct duplex offset for frequencies normally assigned
to repeaters and selects no offset for other frequencies. See
"Turning Auto Duplex On and Off" on Faxback Doc. # 19147.
Scanning for a Frequency
1. Press VFO to select either VFO-A or VFO-B.
2. Press F. Then Press UP ARROW to scan up or DOWN to scan down.
NOTES: You can set the HTX-242 to scan in 5, 10, 12.5, 20,, 25, 50, or 100
kHz steps. The default is 20 kHz. See "Setting the Frequency
Step" on Faxback Doc. #19148.
You can program up to five frequencies for the HTX-242 to skip
when scanning. See "Storing Scan Skip Frequencies" on Faxback Doc.
#19148.
When the HTX-242 reaches one end of the scanning range, it starts
over at the other end. To set the scanning range, see "Setting the
Scanning Range" on Faxback Doc. #19148.
When the HTX-242 stops on a transmission, it either stops scanning,
resumes scanning in 10 seconds even if the transmission continues,
or stays on the frequency until the transmission ends. To select
the scan resume option, see "Setting the Scan Resume Condition" on
Faxback Doc. #19148.
If you set the HTX-242 to resume scanning after the transmission
ends, it pauses to ensure you do not miss a reply. To set the scan
delay, see "Setting the Scan Resume Delay" on Faxback Doc. #19148.
If you press PTT on the microphone, scanning stops.
To resume scanning after the HTX-242 stops, press MHZ
Setting the Frequency Step
The factory default frequency step is 20 kHz. Each time you rotate TUNE
one click, or press UP or DOWN on the microphone, the frequency changes by
20 kHz. When scanning, the HTX-242 scans up or down 20 kHz per step.
Follow these steps to change the frequency step.
1. Press VFO.
2. Press F then STEP. The HTX-242 displays St and the current frequency
step.
3. Rotate TUNE, or press UP or DOWN on the microphone, to select the
desired frequency step (5, 10, 12.5, 20, 25, 50, or 100 kHz).
4. Press MHz or PTT to save the setting.
Setting the Scan Options
Storing Scan Skip Frequencies
You can store up to five frequencies for your HTX-242 to skip when
scanning. This lets you prevent the HTX-242 from stopping on beacon or
packet repeater frequencies.
1. Press VFO.
2. Hold F for at least 1 second, FUNC flashes.
3. Press Mr. The HTX-242 displays SC and the current scan resume
setting.
4. Repeatedly press UP ARROW until the HTX-242 displays S1 and the first
scan skip frequency (or ---, --- if no frequency is stored).
5. Select the first scan skip frequency by rotating TUNE, pressing UP or
DOWN on the microphone, or directly entering the last five digits of
the frequency.
6. Press UP ARROW for the next scan skip memory - S2, S3, S4, or S5.
7. Repeat Steps 5 and 6 for each scan skip frequency.
8. Press MR or PTT to save the setting.
Setting the Scan Resume Condition
When you scan VFO frequencies or frequencies you stored in memory, the
HTX-242 stops at any signal strong enough to break squelch. The HTX-242
is preset to ti, meaning it resumes scanning in 10 seconds, even if the
signal continues.
Follow these steps to change the scan resume condition.
1. Press VFO.
2. Hold F for at least 1 second, FUNC flashes.
3. Press MR. The HTX-242 displays SC and the current option.
ti Resumes scanning in 10 seconds
cr Resumes scanning after the carrier drops and the scan resume
delay expires
SE Does not resume scanning
4. Rotate TUNE, or press UP or DOWN on the microphone, to select the
desired option.
5. Press MR or PTT to save the setting.
Setting the Scan Resume Delay
When you set the scan resume condition to cr (carrier), the HTX-242 resumes
scanning after the carrier drops. The scan resume delay option lets you
set the HTX-242 to pause before resuming so you can hear replies. The
factory default is 2 seconds.
Follow these steps to change the scan resume delay.
1. Press VFO.
2. Hold F for at least 1 second. FUNC flashes.
3. Press MR.
4. Repeatedly press UP ARROW until the HTX-242 displays Sd and the
current scan resume delay (0.5, 1, 2, or 4 seconds).
5. Rotate TUNE, or press UP or DOWN on the microphone, to select the
desired scan resume delay.
6. Press MR or PTT to save the setting.
Setting the Scanning Range
When you scan in a VFO mode, the HTX-242 scans frequencies within a
selected range. The default range is 144.0 to 148.0 MHz.
Follow these steps to change the scanning range.
1. Press VFO.
2. Hold F for at least 1 second, FUNC flashes.
3. Press MR.
4. Repeatedly press UP ARROW until the HTX-242 displays SL and the lower
scan limit.
5. Rotate TUNE, press UP or DOWN on the microphone, or directly enter the
lower scan limit's last five digits on the microphone's keypad.
6. Press UP ARROW. The HTX-242 displays SH and the upper scan limit.
7. Rotate TUNE, press UP or DOWN on the microphone, or directly enter the
upper scan limit's last five digits on the microphone's keypad.
8. Press MR or PTT to save the settings.
NOTE: The frequency gap between the lower and upper scan limits should be
no less than two times the current frequency step. If the frequency
gap is less than this, the HTX-242 does not scan.
Receiving Transmissions
To receive a transmission, turn on the HTX-242, adjust the volume and
squelch, and tune to the frequency you want to monitor. The HTX-242
displays BUSY, and the signal-strength indicator shows the relative signal
strength when it receives a signal.
NOTE: If BUSY appears but you hear nothing from the speaker, be sure the
DTMF page and tone-squelch features are turned off and SQUELCH is
set correctly. To turn off DTMF page, press DTMF once. To turn off
tone squelch, press T-SQL until neither T nor T-SQL appears on the
display. See "Activating Subaudible Tone Transmit and Squelch" on
Faxback Doc. #19149.
Transmitting
CAUTION: It is illegal to transmit if you do not have a Technician Class
(or higher) license issued by the FCC.
1. Select the desired frequency.
NOTE: If you select a repeater frequency, the HTX-242 displays + or -
to show the offset direction. To operate with no offset
(simplex) on that frequency, press SHIFT until neither + nor -
appears.
2. Press LOW so LOW appears on the display. This selects the low power
(10 watt) setting.
3. Press the push-to-talk button (PTT) on the side of the microphone to
transmit. The signal strength meter shows half-scale for low power
(for low power (or full-scale for high power). Release PTT to listen
for a reply.
NOTES: If the other party advises you to improve your signal, press LOW.
HIGH appears on the display and the HTX-242 transmits at high power
(about 45 watts). To return to low power, press LOW again.
If you try to transmit outside the permitted range, the HTX-242
displays tF Err and beeps twice.
Manually Transmitting DTMF Tones
To transmit DTMF tones, follow the steps for transmitting. Then, while
holding down PTT, press the digits on the microphone to transmit the
tones.
NOTE: If auto-reply is turned on, you must hold down PTT while you
transmit. If auto-reply is off, you can release PTT after you enter
the first digit. The HTX-242 transmits for 1 second after you enter
the last digit. See "Using Auto-Reply" on Faxback Doc. #19149.
Transmitting DTMF Tones from Memory
1. Press DTMF so the HTX-242 displays DTMF and the current DTMF memory
number.
2. To select a different DTMF memory, press and hold F for at least
1 second. Then press DTMF.
3. Rotate TUNE or press UP ARROW or DOWN ARROW to select the desired DTMF
memory.
4. Press and hold PTT. Then press DTMF to send the current DTMF memory.
NOTES: If you turn on the DTMF auto send option and turn on DTMF memory
(DTMF appears on the display), the HTX-242 sends the DTMF sequence
in the current memory every time you press PTT. See "Using DTMF
Auto Send" on Faxback Doc. #19149.
To store DTMF sequences, see "Storing a DTMF sequence" on Faxback
Doc. #19149.
Limiting Transmit Duration
When you communicate on the 2-meter band, you should 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 a
single transmission exceeds the selected time (none, 1, 2, 3, 5, 7, 10, or
15 minutes). Follow these steps to select the transmission time-out
setting.
1. Press VFO.
2. Hold F for at least 1 second. FUNC flashes.
3. Press MR.
4. Repeatedly press UP ARROW until the HTX-242 displays to and either
the selected time (if the option is on) or oFF (if the option is off).
5. Rotate TUNE, or press UP or DOWN on the microphone, to select the
desired time-out time (to turn on the time out option) or oFF (to turn
off the option).
6. Press MR or PTT to save the settings.
Turning the Keytone Beep On and Off
Your HTX-242 sounds a beep each time you press a button. Follow these
steps to turn off this keytone beep.
NOTE: This does not affect the tone-alert beep, alarm scan beep, or the
transmit limit beep.
1. Press VFO.
2. Hold F for at least 1 second. FUNC flashes.
3. Press MR.
4. Repeatedly press UP ARROW until the HTX-242 displays bp and either on
(if the beep option is on) or OFF (if the option is off).
5. Rotate TUNE, or press UP or DOWN on the microphone, to select on (to
turn on the beep option) or oFF (to turn off the option).
6. Press MR or PTT to save the settings.
(SP 02/16/96)
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