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Last modified 2021-05-06

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Roadstar RM-550

A picture of Roadstar RM-550

SPECIFICATIONS

GENERAL
Type:Citizen band transceiver
Frequency range:26.965-27.225 MHz
Channels/tuning steps:22
Mode:AM / FM / SSB
Frequency control:PLL
Frequency stability:0.0005%
Power supply:Mains: 220 VAC (Fixed power cord)
Current drain/power consumption:RX: ? VA
TX: ? VA
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. NB. SWR-meter. 24 hr clock. Tone control.
External selcall connector.




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 (12 dB SINAD)
SSB: 0.16 uV (10 dB S+N/N)
Selectivity:
Image rejection:60 dB
AF output power/speaker:3.5 W at 10% distortion / 4 ohm
External speaker connector:




TRANSMITTER SECTION
RF output power:AM/FM/SSB: Max 0.5 W
Modulation system:
Max FM deviation:1.8 KHz
Spurious emissions:Less than -? dB
Microphone impedance/connector:500 ohm / 4-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 198x-198x (Discontinued)
Main PCB:
Sub PCBs:
Additional info:New price 1986 in Switzerland: CHF 1200.-
Related documents:
Sams Photofact #:None
Modifications and fixes:
Reviews:
Options/Accessories:
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A picture of the Roadstar RM-550 label