2-6
2.10
LED DISPLAY VARIABLE DIMMING MODE
1.
With the transceiver in normal operating mode press the
UP
or
DN
keys to increase or
decrease the intensity of the LED display.
2.
Once maximum intensity of the display is acheived, the
UP
key no longer functions.
Conversely once minimum intensity is reached, the
DN
key ceases to function.
2.11
90 SECOND TRANSMITTER TIME OUT FEATURE
A selectable 90 second transmitter time out feature is provided to prevent accidental
continuous transmission in the event of a faulty PTT switch. With this feature enabled the
transceiver will stop transmitting after the PTT is engaged continuously for 90 seconds. The
timer is reset by releasing then re-engaging the PTT switch.
Press the
FUNC
then the
M.UP
key. Use the
M.UP
and
M.DN
keys to select 90 SEC, which
enables the feature, or NONE which disables it.
2.12
QUICK GUARD PROGRAMMING FEATURE
A quick download of any of the 100 memory positions to either of the guard memory positions
can be accomplished. Select the memory position whose contents you desire to download to
a guard memory. Select either GD1 or GD2 memory channel as desired. Press
FUNC
then
7
.
The guard memory channel will now contain all the same information as the selected memory
position.
2.13
PROGRAMMING CTCSS TONES
NOTE
: The TFM-138 supports only CTCSS tone functions. DPL code functions are not
supported.
CTCSS tones (PL tones) can be assigned to each memory channel. The guard receiver squelch
will operate only on carrier detection, but guard 1 and 2 transmit tones can be programmed.
To program a CTCSS tone to a memory channel:
1.
Use the
M.UP
and
M.DN
keys to select the memory channel that you want to assign
a CTCSS tone.
2.
Press the
FUNC
key then the
TONE
key. The display will show "RX TONE:" and the
current tone number, as well as the tone frequency in Hz.
3.
Use the
M.UP
and
M.DN
keys to select the tone number you require. The following
is a list of the available CTCSS tones:
Number Tone
Number Tone
Number Tone
01 67.0
26 162.2
51 177.3*
02 71.9
27 167.9
52 183.5*
03 74.4
28 173.8
53 189.9*
04 77.0
29 179.9
54 196.6*
05 79.7
30 186.2
55 199.5*
Содержание TFM-138
Страница 13: ...2 2 FIGURE 2 1 Operator s Switches and Controls TFM 138 F10 B software...
Страница 24: ...3 2 FIGURE 3 1 Outline Drawing for Model TFM 138 Transceiver...
Страница 26: ...3 4 Figure 3 2 Wiring Connections for TFM 138 Transceiver...
Страница 30: ...3 8 FIGURE 3 4 Microphone and Sidetone Level Main and Guard Squelch Adjustment Access Holes...
Страница 42: ...STEP SYSTEM PASS FAIL NOTES A 11...
Страница 43: ...STEP SYSTEM PASS FAIL NOTES A 12...
Страница 44: ...STEP SYSTEM PASS FAIL NOTES A 13 NOTES...
