User's Manual

SPECIFICATIONS
TRANSMIT SPECIFICATIONS
344 ENVOY™ TRANSCEIVER REFERENCE MANUAL
Transmit specifications
Table 29: Transmit specifications
Item Specification
Power output for AUST &
FCC
100 W PEP ±0.5 dB, 27 MHz CB 10 W PEP (Aust only)
Power output 125 W PEP reducing with frequency to 100 W PEP at 30 MHz ±1 dB
CW or single tone: approximately 60% of PEP with average PEP control
(average control disabled on handset PTT)
Duty cycle 100%: normal speech over full temperature range
100%: ARQ up to 30°C (86°F)
25%: 16-tone continuous data mode (5 minutes on
maximum) at ambient temperature up to 30°C
(86°F)
100%: all modes up to maximum ambient temperature of
45°C (113°F) with Option F
Supply current Output power: 100 W or 125 W
Two-tone or CW: 9 to 14 A
Average speech: 8 A for battery life calculations
Protection Safe under all load conditions by limiting reflected power to 10 W PEP
and limiting PA FET drain voltage swing
Thermal protection against excessive heatsink temperature
A/F response Overall response of microphone and transmitter rises approximately
6 dB/octave 300 to 2700 Hz
Spurious and harmonic
emissions
Better than 60 [65] dB below PEP
Carrier suppression 60 [65] dB below PEP
Unwanted sideband 65 [70] dB below PEP
Intermodulation
(Two-tone test)
100 W: 26 [30] dB below each
tone
32 [36] dB below PEP
125 W: 26 [27] dB below each
tone
32 [33] dB below PEP