EFJohnson 001-9800-001 User Manual
GENERAL INFORMATION
1-6
February 2001
Part No. 001-9800-001
UHF 984x SPECIFICATIONS
The following are general specifications intended for use in testing and servicing this transceiver. For current
advertised specifications, refer to the specification sheet available from your sales representative. Specifications
are subject to change without notice.
are subject to change without notice.
GENERAL
Frequency Range
430-470 MHz and 470-512 MHz
Operating Modes
LTR (trunked) and Conventional (non-trunked)
Systems and Groups Selectable
Low Tier: Up to 16 system/group combinations
High Tier: Variable from 100 1-group systems up to 40 16-group systems
High Tier: Variable from 100 1-group systems up to 40 16-group systems
Mounting Location
Dash (low tier), Dash or Remote (high tier)
Transmit/Receive Separation
Any frequency within the range
Channel Spacing
12.5 kHz (2.5 kHz maximum deviation)
25 kHz (5 kHz maximum deviation)
(12.5 kHz or dual bandwidth models available)
25 kHz (5 kHz maximum deviation)
(12.5 kHz or dual bandwidth models available)
Frequency Stability
2.0 PPM from –22° to +140° F (–30° to +60° C)
Dimensions
2.1” x 6.0” x 7.5” (HxWxD)
Weight
3.5 lbs (1.59 kg)
Power Requirement
13.6 volts DC nominal, negative ground
Current Drain
300 mA maximum (receive standby)
1.5 A maximum (receive, rated audio output)
10.0 A maximum (transmit, 25 W output)
15.0 A maximum (transmit, 40 W output)
1.5 A maximum (receive, rated audio output)
10.0 A maximum (transmit, 25 W output)
15.0 A maximum (transmit, 40 W output)
FCC Compliance
Parts 15 and 90
RECEIVER
Sensitivity (12 dB SINAD)
0.35 µV
Selectivity
–70 dB at 25 kHz, –60 dB at 12.5 kHz
Spurious and Image Rejection
–70 dB
Intermodulation
–70 dB
Hum and Noise
–45 dB at 25 kHz, –40 dB at 12.5 kHz
Maximum Frequency Spread
Any spread within the range
Audio Power Output
5 watts (external 4.7-ohm speaker), 3 watts (internal 8-ohm speaker)
Audio Distortion
Less than 5% at 1 kHz with 60% deviation
Audio Response
+1, –3 dB per octave de-emphasis per standard TIA
RF Input Impedance
50 ohms
TRANSMITTER
RF Power Output
25W Version - 25 watts (adjustable to 2-25 watts)
40W Version - 40 watts (adjustable to 10-40 watts)
40W Version - 40 watts (adjustable to 10-40 watts)
Spurious and Harmonic Emissions
–70 dB
FM Hum and Noise
–40 dB (25 kHz), –35 dB (12.5 kHz)
Audio Modulation
25 kHz - 16K0F3E (voice) 16K0F1D (data)
Audio Distortion
Less than 3% at 1 kHz with 40% modulation
Audio Frequency Response
6 dB per octave pre-emphasis per standard TIA
Maximum Frequency Spread
Any spread within the band
RF Output Impedance
50 ohms
Duty Cycle
20% standard TIA