Codan NGT 2010 RF Technical & Service Manual page 521

Transceiver system
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Specifications
The figures listed for specifications will normally be exceeded by production equipment.
Where relevant, typical values are given in brackets [ ]. All measurements are made with
a modified NGT source (with Option F) and 50 Ω load unless otherwise specified.
NOTE
Power amplifier specifications (3061/3062)
Table 1: Power amplifier specifications (3061/3062)
Item
Power output
Duty cycle
Supply
Protection
Spurious and harmonic
emissions
Intermodulation
(two-tone test)
ALC
NGT Transceiver System Technical Service Manual
These specifications indicate differences beyond the regular transmitter
specifications for the NGT. For the standard transmitter specifications of
the NGT see
page 39, Transmitter
Specification
3061:
3062:
CW or single tone:
100%:
normal speech over full temperature range, –10 to 60°C
(14 to 140°F)
100%:
all modes up to a maximum ambient temperature of 45°C (113°F)
100–240 V AC ±10%, 50/60 Hz single phase
3061:
800 VA (two-tone), 900 VA maximum
3062:
1.6 kVA (two-tone), 1.8 kVA maximum
Safe under all load conditions
Latching bypass under load in excess of 3:1 VSWR
Latching bypass with heatsink temperature > 70°C (158°F)
Latching bypass with internal fault conditions
Fans operate at 45°C (113°F) (low speed) and 55°C (131°F) (high speed)
Better than 60 [65] dB below PEP
26 [27] dB below each tone, 32 [33] dB below PEP
A 10 dB increase in signal input above compression threshold produces
< 0.5 dB increase in power output
Maximum ALC range > 30 dB
ALC attack time approximately 2 ms
High power—Overview and specifications
specifications.
500 W PEP ±1.0 dB, 300 W average
1 kW PEP ±1.0 dB, 600 W average
approximately 60% of PEP with average PEP
control (average control disabled on handset PTT)
209

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