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Last modified 2022-02-16

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Magnum S-9

A picture of Magnum S-9


Type:Citizen band / "Freeband" / Export transceiver
Frequency range:25.615-32.990 MHz (Depending on programming and tuning)
Channels / tuning steps:320 (8*40 channel blocks, programmable)
Mode:AM / FM / SSB
Frequency control:PLL (KS8805B)
Frequency stability:Better than 10 ppm @ 0 to 40C (32 to 104F) after 15 minutes warmup
Clarifier or Delta tune:Cor: 5 KHz
Fine: 1.5 KHz
Power supply:10.5-15 VDC (3-pin connector)
Current drain / power consumption:RX: ? mA
TX: Max 7 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):195*60*290 mm (7.68*2.36*11.42")
Weight:2 Kg (4.41 lb)
Other features:PA, NB, Dimmer, +10 KHz switch, Roger beep, Digital echo chamber

Receiver system: Double conversion superheterodyne
1st IF: 10.695 MHz
2nd IF: 455 KHz - Ceramic filter: CF455HT
Sensitivity: AM: 1 uV (10 dB S+N/N)
FM: 0.3 uV (12 dB SINAD)
SSB: 0.25 uV (10 dB S+N/N)
Selectivity: AM/FM: 6 KHz (-6 dB), 18 KHz (-60 dB)
SSB: 4.2 KHz (-6 dB), 8.5 KHz (-60 dB)
Image rejection:70 dB
AF output power / speaker:2 W at 10% distortion / 8 ohm
External speaker connector:3.5 mm, 8 ohm

RF output power: AM: 10-45 W (PEP)
FM: 12-25 W (RMS)
SSB: 1-45 W (PEP)
Modulation system:
FM deviation (Factory set):2 KHz
Spurious emissions:Better than -? dB
Microphone impedance / connector:600-1000 ohm / 4-pin (Metal locking ring connector)
Microphone input level:? mV

Manufactured:China (Designed in USA), 2004-2013 (Discontinued)
Main PCB: Early version: PCBX-9821R17 (2SC1969 finals)
Later version: PCBX-0619R4 (ERF2030 finals)
Sub PCBs:
Additional info:
Related documents: User manual (316 KB)
Schematic (193 KB)
Two 2SC1969 finals (Early version)
Two ERF2030 finals (Later version)
MCU (for PCBX-0335R6) Samsung S3P7324 (275 KB)
PLL: KS8805B
Sams Photofact #:None
Modifications and fixes:Frequency expansion (25 KB)
Options / Accessories:
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An inside picture of Magnum S-9
A rear picture of Magnum S-9