Codan HF2000 User manual

SPECIFICATIONS
GENERAL
FREQUENCY RANGE:
OPERATING MODES:
FREQUENCY STABILITY:
CONTROLS & INDICATORS:
Control Head:
Tran ceiver:
RF INPUT/
OUTPUT IMPEDANCES:
POWER CONSUMPTION:
Receive:
Tran mit: J3E Average
J3E Two tone
2-16Mhz
SSB J3E
(AMH3E Optional)
+/- 20 Hz -45oC + 0oC
Power ON/OFF/VOLUME and
PULL TEST (Mute)
Mode: Tune/SSB/Clarify
Channel Select
Digital Channel No. Display
Mute Adjust preset
Mic. Gain preset
50Ω nominal. The Transceiver
will operate with a load
impedance producing a VSWR of
less than 2:1.
14V 28V
0. A 0. A
A 4A
14A 8A
ENVIRONMENTAL CATEGORIES:
Temp. Rating:
Vibration Cat.:
Altitude:
Sizes & Weights
CONTROL HEAD
(RACKMOUNT):
CONTROL HEAD
(PANELMOUNT):
TRANSCEIVER:
ANTENNA TUNNERS:
B2A/MNO/XXXXXXZBBBB
I 30 (MNO)S
-45oC + 0oC
Piston Engine Fixed Wing
Turbo Jet Fixed Wing
Turbo Jet Rotary Wing
30,000 feet
163 mm W x 42 mm H x
100 mm D, 0.4 kg
61 mm W x 2 mm H x
100 mm D, 0.4 kg
125 mm W x 110 mm H x
340 mm D, 4.2 kg – (includes
mounting tray).
220 mm W x 110 mm H x
260 mm D
1.9 kg 12 CH
2.5 kg 28 CH
RECEIVER
TYPE:
IF FREQUENCY:
SENSITIVITY:
SELECTIVITY:
AGC:
AUDIO OUTPUT:
SPURIOUS RESPONSES:
DESENSITIZATION:
CLARIFIER RANGE:
All solid state, single
conversation superheterodyne
1650 kHz
Better than 0.5µV emf from 50 Ω
source for 6 dB S+N/N.
Greater than 0 dB at –1.5 &
+4.5 kHz (ref SCF USB)
Less than 6 dB over +350 to
+2500 Hz.
Less than 3 dB audio variation
from input levels 10 µV to
100,000 µV. Fast attack, slow
release.
Greater than 3 V RMS into 600 Ω
load impedance with 10 µV input.
Better than 25 dB below either
tone.
Less than 3 dB change in audio
output with a 10 µV in-band
single in the presence of a
100,000 µV undersired signal
Narrow range (normal) +/-30 Hz.
Wide range (option) +/- 100 Hz.
Clarifier operates in receive
mode only.
TRANSMITTER
TYPE:
POWER OUTPUT:
SPURIOUS & HARMONIC
EMISSIONS:
AUDIO FREQUENCY RESPONSE:
CARRIER SUPPRESSION:
INTERMODULATION PRODUCTS:
ALC RANGE:
AUDIO INPUT:
PUSH TO TALK:
All solid dtate
14V 28V
100W 120W PEP +/-1dB
Better than 43 dB (below PEP)
for all emisions removed at
least 10 kHz from SCF
Output variation less than +/-2 dB
over frequency range 350 to
2500 Hz.
40 dB below PEP
31 dB below PEP
A 30 dB increase in input signal
above compression threshold
produces less than 1 dB
increase in power output
400 mV RMS nominal (suits
carbon microfone or
equivalent).
Ground required on PTT line.

CODAN HF 2000 AIRBONE SYSTEM
Des ription of Control Fun tions
CHANNEL SELECTION is performed by means of a single knob. The intensity of the channel number display
varies automatically with ambient light level, such that maximum readability is maintained from darkness to full
sunlight.
The OFF/VOLUME control applies power to the system and controls the receiver audio gain.
The PULL TEST function can be used to override the muting circuit to check receiver operation (noise) in the
absence of an audio signal.
The TUNE/SSB/CLARIFY control selects either the TUNE mode in the fully counter clockwise switch position, or
the SSB mode over the full clockwise rotation of the potentiometer. When in the SSB mode, the potentiometer
action performs the clarify function, i.e. can improve intelligibility in SSB receive. The centre position of the
control corresponds to minimum clarifier effect.
The TUNE mode is only used to adjust “STINGER” type antennas and antenna tuners. There is no audio
transmitted in this mode.
PRESET CONTROLS are provided for mute adjustment, microphone gain and display intensity. Adjustment
should be done only by a technician.
Operating Instru tions
1. Turn the aircraft master power switch ON.
2. Turn the OFF/VOLUME control clockwise, to turn the system ON.
3. Select the desired channel.
4. Select SSB (mid position initially).
5. Pull out the PULL TEST knob and set the noise volume to the desired level. Then push in.
6. Adjust the CLARIFY control if necessary during SSB reception.
. To transmit, select HF Com on the selector panel and press the microphone key.
Note
Under conditions of marginal reception, it may be desirable to leave the PULL TEST knob pulled out during all
periods communication.
Codan Pty. Ltd. Graves Street, Newtonm S.A. 50 4 Australia 06-00550