Operating Instructions

14 TR-800 Beltpack BTR-800, TR-800, TR-825
1. [MENU] and [SET] buttons – Used to select menus and
set option on the LCD
2. LCD (Liquid Crystal Display)
3. [UP] and [DOWN] buttons – Used to select beltpack
options on the LCD.
4. Microphone Gain – Adjusts the headset’s microphone
gain. Adjust so that the BAT/OM LED will flash at the
beginning of most words at normal speech levels.
5. Push-to-Talk/Push-to-Transmit Switch – 
Push-to-Talk (PT TALK) – The t
ransmitter is always on.
No audio set unless the talk switch, WTA or SA button
pressed. Recommended position.

Push-to-Transmit (PT TX) – The transmitter and audio
path are
off except when the talk switch, WTA or SA,
button is pressed.
6. Headset Connector – Male XLR connector or female
XLR connector. A dynamic or electret headset
microphone is automatically detected by the beltpack and
a bias voltage supplied, if needed.
7. Battery Latch – Press down to enable the battery pack to
be released. While the latch is held down, slide the
battery pack about 1/8 inch back, toward the latch, until it
stops. Then lift it out.
8. Receive Antenna – Screw type 1/4-wave replaceable
antenna. The color dot on the screw end of the antenna
must match color dot on antenna receptacle.
9. Transmit Antenna – Screw type 1/4-wave replaceable
antenna. The color dot on the screw end of the antenna
must match color dot on antenna receptacle.
FIGURE 5.
TR-800 Rear Panel/Connector/Antennas
Male Connector
Female Connector
FIGURE 6.
Headset Jack Wiring