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Last modified 2026-10-25

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Zodiac 550 (By Melchioni Elettronica)

A picture of Zodiac 550 (By Melchioni Elettronica)

SPECIFICATIONS

GENERAL
Type:Citizen band transceiver
Frequency range:26.875-27.265 MHz
Channels / tuning steps:34
Mode:AM / FM / SSB
Frequency control:PLL
Frequency stability:0.005% (No temperature reference)
Clarifier or Delta tune:? Hz
Power supply:Mains: 220 VAC (Fixed power cord)
or 13.8 VDC (Screw terminals)
Current drain / power consumption:RX: ? A @ 13.8 VDC
TX: ? A @ 13.8 VDC
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):440*140*235 mm (17.32*5.51*9.25")
Weight:5.1 Kg (11.24 lb)
Other features: PA. 24 hr clock. SWR meter.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 10.695 MHz
2nd IF: 455 KHz
Sensitivity: AM: 0.5 uV (10 dB S+N/N)
FM: 0.5 uV (10 dB S+N/N
SSB: ? uV
Squelch sensitivity:1 uV (Threshold)
1000 uV (Tight)
Selectivity:
Image rejection:
AF output power / speaker:3.5 W at ?% distortion / 4 ohm
External speaker connector:-




TRANSMITTER SECTION
RF output power: AM: 5 W
FM: 5 W
SSB: 5 W
Modulation system:
Max AM modulation (Factory set):95%
Max FM deviation (Factory set):±1.8 KHz
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / 4-pin (Male GX16 locking ring jack)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1987-1988 (Discontinued)
Main PCB: By Suruga
Sub PCBs:
Additional info: New price 1987 in Italy: L.759.000
Related documents:
Known markets and approvals: Italy
Omologato: DCSR/2/4/144/06 301675/006717
Sams Photofact #:None
Modifications and fixes:
Reviews:
Options / Accessories:
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