TB9300 Specifications Manual Base Station Specifications 39
© Tait International Limited August 2022
1.8.4 Balanced Interface
Line Output - Balanced
Audio Headroom
The largest sine-wave signal that meets
distortion specifications
+10 dBm
Input Level Range
For an output signal of 60% deviation at 1kHz
Adjustable over this range
-30 dBm to +0 dBm
Output impedance 600 Ω balanced
Return loss > 20 dB
Impedance balance about earth
(ITU-T G.117)
> 46 dB
Frequency response
(‘speech’ setting)
300 Hz to 3 kHz
Passband ripple
(compared with 1kHz)
-3 dB to +1 dB
Distortion (RF to line)
Applicable over a level adjustment range up
to the audio headroom limit
Applicable over the entire frequency response
range
3 %
Line Input - Balanced
Audio headroom +10 dBm
Input Level Range
For an output signal of 60% deviation at 1kHz
Adjustable over this range
-30 dBm to 0 dBm
Impedance 600 Ω balanced
Return loss >20 dB
Impedance balance about earth
ITU G.117
>46 dB
Frequency response 300 Hz to 3 kHz
Distortion (line to RF) 3%
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