20 Introduction TM9100 Service Manual
© Tait Electronics Limited August 2005
Transmitter 50W/40W radio: 25W radio:
Output power:
• level 1 (very low)
• level 2 (low)
• level 3 (medium)
• level 4 (high)
10W
15W
25W (VHF), 20W (UHF)
50W (VHF), 40W (UHF)
1W
5W
12W
25W
Modulation limiting:
• 25kHz/30kHz channel
• 12.5kHz channel
<±5kHz
<±2.5kHz
FM hum and noise:
• 25kHz/30kHz channel
• 12.5kHz channel
>– 41dB
>– 37dB
Conducted and radiated emissions:
•up to 1GHz
• between 1 and 4GHz
(for radio operating frequencies below 500 MHz)
• between 1 and 12.75GHz
(for radio operating frequencies above 500MHz)
<−36dBm
<−30dBm
<−30dBm
Audio bandwidth 300Hz to 3kHz (flat or with pre-emphasis)
Audio response +1/–3dB
Audio distortion <3% at 1kHz 60% modulation
Transmit rise time
(from the time the external PTT line is asserted to
the time when the RF output power reaches 90%
of its final value)
<10ms
Table 1.1 Specifications (continued)
Parameter Values
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