18 Introduction TP9100 Service Manual
© Tait Electronics Limited May 2005
Transmitter
Output power:
• level 1 (very low)
• level 2 (low)
• level 3 (medium)
• level 4 (high)
1W
2W
2.5W (UHF), 3 W (VHF)
4W (UHF), 5W (VHF)
Transmit current (V
cc
=7.5V, radio transmitting at
high power, mean value across each band)
• B1 band
• H5 band
• H6 band
1.72A typ
1.76A typ
1.60A typ
Modulation limiting:
• narrow channel spacing
• medium channel spacing
• wide channel spacing
<±2.5kHz
<±4kHz
<±5kHz
FM hum and noise:
• narrow channel spacing
• medium channel spacing
• wide channel spacing
136 to 500MHz: above 500MHz:
> 34dB >31dB
> 48dB >35dB
> 40dB >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 distortion <3% at 1kHz 60% modulation
Table 1.1 Specifications (Continued)
Parameter Values