IC-RP4020 - 440 MHz Amateur Repeater

Quick Specs:
440 MHz amateur repeater
RX/TX: 430-450 MHz
Output power: 10 W, 25 W, 50 W (depending on version)
Modes: FM
Receiver sensitivity: 0.32 µV (FM, 12 dB SINAD)

Detailed Specifications

ADDITIONAL FEATURES

An advanced CPU and other ICs in the IC-RP4020 logic circuit allow remote control using a DTMF code as follows:

CTCSS decoder on/off
CTCSS encoder on/off
CTCSS decoder frequency setting
CTCSS encoder frequency setting
Local inhibit function on/off
Manual ID signal transmission
ID signal transmission speed setting
Time-out timer setting
Drop delay timer setting
Repeater-pausing time after time-out setting
CPU resetting
Operating frequency fine adjustment
3 auxiliary control outputs on/off

GENERAL

Frequency Coverage: 430~450 MHz
Mode: F3 (FM)
Initial tuning step: 5 or 12.5 kHz selectable
Antenna impedance: 50 ohms (unbalanced)
Power Supply Requirement: 100~120 V AC
Current drain (at 13.8 V DC):

Transmit:

10 W version: 7.0 A

25 W version: 10.0 A

50 W version: 17.0 A

Receive (squelched): 1.0 A

Receive (max. audio power): 1.2 A
Usable Temperature Range: -10°C ~ +60°C; +14°F ~ +140°F
Frequency stability: ±1.0 ppm (-10°C ~ +60°C; +14°F ~ +140°F)
Dimensions (projections not included): 425(W) x 149(H) x 368(D) mm; 16.7(W) x 5.9(H) x 14.5(D) in
Weight: 17 kg; 37.5 lb

TRANSMITTER

Output power:

10 W version: 10 W

25 W version: 25 W

50 W version: 50 W
Modulation system: Variable reactance frequency modulation
Max. frequency deviation: ±5.0 kHz
Spurious emissions: Less than -60 dB
Microphone impedance: 600 ohms

RECEIVER

Receive system: Double-conversion superheterodyne
Intermediate frequency:

1st: 30.875 MHz

2nd: 455 kHz
Sensitivity (for 12 dB SINAD): 0.32 µV
Squelch sensitivity: Less than 0.25 µV
Selectivity: More than 15 kHz/-6 dB; Less than 30 kHz/-60 dB
Spurious rejection: More than 60 dB
Audio output power: More than 1.7 W at 10% distortion with a 8 ohms load.
Audio output impedance: 8 ohms