User's Manual

TB7100 Specifications Manual Transmitter Specifications 29
© Tait Electronics Limited May 2005
Line and Microphone Inputs
Pre-emphasised Response
Bandwidth
Below Limiting
Flat Response
Bandwidth
Response
300 Hz to 2.55 kHz (NB)
300 Hz to 3 kHz (MB)
300 Hz to 3 kHz (WB)
within ±3 dB of a 6 dB / octave pre-emphasis curve (ref.
1 kHz)
Limiting Deviation (Modulation Limiting)
NBFM
MBFM
WBFM
<±2.5 kHz
<±4.0 kHz
<±5.0 kHz
Distortion*
*60% modulation at 1kHz
< 3%
Bulk Delay
Transmitter*
Audio Tap in T12
Audio Tap in T8
Talk Through Repeater**
*from audio input to antenna
**from antenna input to antenna output, –70 dBm,
60% deviation for a 1kHz tone, flat response any
output power
2.5 ms
10 ms
20 ms
Group Delay*
Transmitter
Talk Through Repeater
*at 60% deviation flat full band response, applies to
balanced and un balanced audio and is at Tap in T12
and Tap out R2
40 µs peak to peak 300 Hz to 3.4 kHz (WB)
40 µs peak to peak 300 Hz to 2.25 kHz (NB)
50 µs peak to peak 300 Hz to 3.4 kHz (WB)
50 µs peak to peak 300 Hz to 2.25 kHz (NB)
Transmitter Audio Section - Modulation Characteristics (Continued)
Balanced Audio Unbalanced Audio
300 Hz to 2.55 kHz (NB)
300 Hz to 3 kHz (MB)
300 Hz to 3 kHz (WB)
within ±3 dB of a 6 dB /
octave pre-emphasis
curve (ref. 1 kHz)
67 Hz to 2.55 kHz (NB)
67 Hz to 3 kHz (MB)
67 Hz to 3 kHz (WB)
within ±3 dB of output
level at 1 kHz