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AudioTR825 TELEX HF full duplex dual channel beltpack 120 frequencies

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The TR-825 is a detachable 2 channel HF beltpack for the BTR-800. Each beltpack is initially composed of 2 detachable antennas (1 transmit and 1 receive antenna), standard alkaline battery packs (R6).

General
--Frequency bands :

**470-608 Mhz, 614-740 Mhz

--Power supply:

**6 R6 Alkaline batteries

--Consumption:

**140 mA

--Temperature :

**-20°C to 55°C

--Dimension:

**9.5cm x 12.8cm x 4.2cm

--Weight:

**0.425 kg

--Transmitter antenna:

**1/4 wave (supplied)

--Receiving antenna:

**1/4 wave (supplied)

--Bandwidth :

**300-8Khz

--Mic input sensitivity:

** 7mV

--Headphone output :

** 40mV into 60 ohms


Transmitter
--Type :

Systematized; 720 channels

--Transmitter power :

50mW max. (Automatic reduction near the base)

--Type of modulation :

FM

--Deviation:

40 Khz

--RF interference stability :

0.005%

--Limiter:

Peak compressor


Receiver
--Type:

Superheterodyne, double conversion, Synthesized, FM

--RF sensitivity: <0.7 uV for 12 dB SINAD

--Noise floor: 20 dB SINAD

--FI selectivity :

3 db at 230 Khz

--Image rejection :

70 dB or more

--Deafness :

90 dB

--Rf frequency stability: 0.005%.

--Distortion :

<1% max deviation
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