Cross-Band Repeater Operation; Microphone Key Assignments - TYT TH-7800 User Manual

To activate ARTS:
1. Set your radio and other radios to the same DCS code number.
2. Press the [SET] key to enter the Menu mode.
3. Rotate the "Main" band DIAL to select Menu # 3 (ARTS).
4. Press the "Main" band DIAL knob and rotate the DIAL to select the desired ARTS beep option.
IN.RNG: The beeps are issued only when the radio first confirms that you are within range, but does not re-confirm with
beeps thereafter.
ALWAYS: Every time a polling transmission is received from the other station, the alert beeps will be heard.
5. Press the "Main" band DIAL knob to confirm and the "OUT.RNG" will display on the LCD. ARTS operation has now
commenced.
6. Every 25 seconds, your radio will transmit a "polling" call to the other station. When the station doesn't respond with its
own ARTS polling signal, the display will change to "OUT.RNG" to confirm that other station's polling code was not recei-
ved in response to yours.
7. Press the [SET] key to exit ARTS operation and exit to normal operation.

Cross-band Repeater Operation

The TH-7800 can be set up to operate as a cross-band repeater via a simple Menu procedure. This feature is useful for
emergency portable work in a remote area, and for cross-band linking.
Note:
1. Check the relative rules and regulations for your country to ensure that this type of operation is permitted.
2. Pick your frequency pair carefully, so as not to cause harmful interference to other users. If you are not sure of activate
repeater frequencies in your area, a safe rule is to stay off of the repeater sub-bands and user the FM simplex portion
of each band. Contact your area's frequency coordinator for guidance.
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3. Remember that the transmit duty cycle will be much higher during repeater service, so we recommend that the transmit
power level be set to a Low level, to ensure cooler operation.
How to set up cross-band repeater operation:
1. Configure both bands setting as desired and the squelch such that background noise is silenced before enabling cross-
band repeater operation.
2. Press the [SET] key to enter the Menu mode.
3. Rotate the "Main" band DIAL to select Menu # 35 (X-PRT).
4. Press the "Main" band DIAL knob once, "XSTART" will appear on the display.
5. Press the "Main" band DIAL knob again to activate the cross-band repeater mode. Now the "
on the display. And both the left and right bands can be used for transmitting or receiving.
6. Press the [SET] key to exit the cross-band repeater mode.

Microphone Key Assignments

TH-7800 microphone's [P1]/[P2]/[P3]/[P4] buttons can be assigned different function by the user, if you wish to utilize an-
other function on one of these keys.
To assign the function to a key:
1. Press the [SET] key to enter the Menu mode.
2. Rotate the "Main" band DIAL to select the Menu # 19 - # 22 to be configured (# 19 PG P1, # 20 PG P2, # 21 PG P3, #
22 PG P4)
3. Press the "Main" band DIAL knob, then rotate the "Main" band DIAL to select the function you wish to assign to the
button you selected in the previous step.
4. Press the [SET] key to save the new setting and select another programmable button to modify, and repeat the above
steps.
5. Press the [SET] key to save the setting and exit to the normal operation.
" icon will disappear
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