Transmitter - Codan NGT 2010 RF Technical & Service Manual

Table 2: Receiver specifications (cont.)
Item
A/F response
@ GPIO connector
A/F response
@ loudspeaker
A/F power and A/F
distortion
Clarifier
Inband IMD
Signal to noise vs input
signal

Transmitter

Table 3: Transmitter specifications
Item
Power output for AUST
& FCC
Power output
Duty cycle
Supply current
Protection
NGT Transceiver System Technical Service Manual
Specification
Typical: –6 dB
Typical: –6 dB
2.4 W into 8 Ω, 5% THD
4 W into 4 Ω
5% THD
,
6 W into 2 Ω
5% THD
,
±10 ppm (nominal)
±50 Hz below 5 MHz, increasing to ±300 Hz at 30 MHz
Clarifier is automatically reset to mid-frequency with channel change
Better than 25 dB IMD with two 100 mV PD RF inputs
An increase of input level of 40 dB above the sensitivity level increases the
signal to noise ratio to at least 40 dB
Specification
100 W PEP ±0.5 dB, 27 MHz CB 10 W PEP (Aust only)
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)
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 of 45°C (113°F) with Option F
Output power:
Two-tone or CW:
Average speech:
Safe under all load conditions by limiting reflected power to 10 W PEP and
limiting PA transistor collector voltage swing
Thermal protection against excessive heatsink temperature
300 to 2800 Hz
300 to 2500 Hz
100 W or 125 W
9 to 17 A
8 A for battery life calculations
NGT—Overview and specifications
39