Sigtronics US-DR User Manual

INTRODUCTIONATTENTION INSTALLER: To assure a trouble free installa-tion, please read these entire instructions through once before beginning.The Sigt

d) For US-45D or US-67D units, make sure that RADIO 1/RADIO 2 switch is set to the radio you want to hear.2. Can’t talk to dispatch (transmit

3. With the radio’s hand mic, transmit as normal, to the remote station. Transmit long enough so that the receiv-ing station can get “calib

When one position transmits, several things take place auto-matically: — All headset microphones, except for the transmitting position, are muted.

Headphone Output:The UltraSound system is designed to easily drive six or more 300 to 1000 ohm headsets. Noise attenuating, full cushion headsets, suc

2. The Intercom unit is primarily designed to be dash mounted. It can be mounted on top of the dash or hang below the dash or vehicle ceilin

Advantages: a) Little or no “behind the panel” space required. b) No vehicle panel thickness limitation. c) No large holes are required to be

wired to the four conductor Hook-up Wire (gray) and then the Hook-up wire connects to the jacks and the PTT switches. For the US-45S and US-45D models

fere or restrict the tilting operation. Also, make sure that the tilting operation will not cut or sever the wiring.Make sure that the wiring does not

OK, skip to the “PTT Test” on page 7. Otherwise, if something is not working right, see the following troubleshooting guide to find and fix the problem

ground connection (green wire) from ground. Turn on the vehicle power (engine off), put on the Driver’s headset and see if the intercom part of the Ul

factures plug in “Y” adapters to make these connections easy. Contact your Sigtronics dealer for pricing and availability. For dual radio units (US-45