User manual

00026144.DOC, Version 1.2 12/12

6. OPERATION

1 Set the sliding switch to “ON” to switch on the transmitter. The battery indicator shortly lights up.

After switching on the transmitter, a radio connection to the receiver is set up. The reception indicator

on the receiver indicates that a connection exists to the transmitter.

2 Speak into the microphone. The volume level can be adjusted by changing the sensitivity with the gain

control. Reduce the sensitivity if the volume of the transmitter signal is too high and thus distorted.

Increase the sensitivity if the volume is too low and a poor S/N ratio results.

The AF indicator on the receiver lights up when an audio signal from the microphone is received.

3 To mute the transmitter during operation, set the sliding switch to its center position. Then no sound will

be transmitted.

4 To switch off the transmitter, set the sliding switch to “OFF”.

7. CLEANING AND MAINTENANCE

We recommend a frequent cleaning of the device. Please use a soft lint-free and moistened cloth. Never use

alcohol or solvents!

There are no serviceable parts inside the device except for the batteries. Maintenance and service

operations are only to be carried out by authorized dealers.

Should you need any spare parts, please use genuine parts. Should you have further questions, please

contact your dealer.

8. TECHNICAL SPECIFICATIONS

Item Carrier frequency

13075006 TM-250 VHF 179.000 MHz

13075008 TM-250 VHF 214.000 MHz

13075012 TM-250 VHF 211.700 MHz

13075013 TM-250 VHF 174.100 MHz

Modulation: FM, F3F

Frequency stability: <± 30 ppm

T.H.D.: <0.5 % at 1 KHz

Audio bandwidth: 40 - 15 kHz (± 3 dB)

Maximum deviation: ± 25 kHz

RF power output: 8.5 mW

Power supply: 9 V battery

Battery life: approx. 6 hours

Audio input: 3.5 mm jack

Dimensions (LxWxH): 106.5 x 64.5 x 31.5 mm

Weight: 80 g