User's Guide

Line input 600 ohms nominal balanced
Level adjustable -20 dBm +10 dBm
Link 11 input
(UHF models only)
600 ohms nominal balanced input level adjustable
between -20 dBm and +10 dBm for ±20 kHz
deviation
RECEIVER
RF Characteristics
8 The characteristics of the receiver’s RF circuitry are:
Sensitivity (for S+N:N of 10 dB)
A3E: £2 mV (-101 dBm); M= 0.3 at 1 kHz modulation
F3E: £1.5 mV (-104 dBm): deviation 3.5 kHz with
1 kHz modulation
AXX: £4.0 mV (-95 dBm); M=0.6
FXX: £4.0 mV (-95 dBm); 5.5 kHz deviation
Note: depending on antenna configuration,
sensitivity may be reduced by 3 dB when optional
guard receiver is fitted.
Spurious suppression
³80 dB (two exceptions 70 dB)
Desensitisation
(for S+N:N ³6 dB)
Wanted signal: 2 mV M=0.3
Interfering signal: 0 dBm at 5 MHz
Cross modulation (for 20 dB ratio)
³100 dB at ±5 MHz (ref 1 µV emf)
Intermodulation (ref 1 mV emf) ³80 dB for equal amplitude signals, ±100 kHz or
greater from fc
Antenna radiation
£20 mV at antenna connector
Maximum RF input 20 V without damage (<30 seconds)
IF Bandwidth:
A3E, F3E with 25 kHz
channel spacing
³24 kHz for 3 dB
£50 kHz for 70 dB
A3E with 8.33 kHz
channel spacing
³7 kHz for 6 dB
£16.66 kHz for 50 dB
AXX, FXX
³75 kHz for 6 dB
£150 kHz for 60 dB
3000DV2 Radios Section 2
Page 5
See FCC Warning page iv