88
20
TX Blue Pocket
Transmitter
Connecting the antenna
Connect the flexible antenna to the SMA connector.
Connecting the audio input
Connect the microphone or line-level input to the six-pin
Lemo connector. Both positive and negative bias
voltages are provided, enabling the majority of electret
lavalier microphones to be used with the TX Blue.
A number of different input cables are avilable from
Audio Limited to allow dynamic, T-powered, and 48V
phantom powered microphones to be used with the
transmitter.
Setting the microphone gain
The microphone gain control should be adjusted to suit
your particular requirements. Select the gain position
such that the overload indicators do not illuminate
during normal speech.
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Technical specification
Frequency range 470MHz–1000MHz
Frequency stability Better than ETS 300–422
Number of frequencies 32 pre-programmed
Output power 50mW nominal
Gain control range 30dB in 8 steps, plus 2 steps for
600Ω line input
Maximum input level -6dBm (position 7)
+6dBm (position 8, 600Ω)
Frequency response 50Hz to 15kHz ±1dB
THD <0.1% at working levels
<0.3% at gain position 7 with
-6dB input in overload
Battery 1 x 9V 6LR61 Alkaline
Battery life More than 6 hours
Size 87 x 60 x 21mm
Weight 115g
Operating range -20˚C to +55˚C
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