12 Volt

All the amplifiers listed below are for use on a 12V supply.
If you require one for use in a truck, please ensure you either have a large enough voltage dropper or choose one of our 24V amplifiers.
The output power quoted for SSB is maximum PEP Power.

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RM Mod 35

1-2 Days
R03
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RM KL35  35W amplifier

A small amplifier for AM/FM only - can not be used on SSB.

Although the amplifier does not have a switch on it, it does have a built-in relay so that you can switch it on/off by putting a switch in the power cable. This allows you to hide the amp away.

Frequency 25-30MHz
Voltage 12-14V
Current 4A
Input AM/FM 1-5W
Output AM/FM 25-35W max
Size 109 x 81 x 35mm

RM KL 60

1-2 days
R60
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A compact amplifier with on/off switch, suitable for use on FM, AM and SSB.

Relay switched, which minimises insertion loss, and can be bypassed using the on/off switch on the front of the amp.

Selectable for AM/FM or SSB.

Frequency 25-30MHz
Voltage 12-14V
Current 4A
Input AM/FM 1-5W
Input SSB 2-10W
Output AM/FM 25-35W max
Output SSB 50-70W max
Size 109 x 125 x 35mm

RM KL300

1-2 Days
R300

A high power broadband amplifier with fixed output power.

The output is a maximum 150W AM/FM and 300W PEP on SSB).

For more details download the instruction manual.

Frequency HF
Voltage 12-14V
Current 14-20A
Input AM/FM 1-10W
Input SSB 2-20W
Output AM/FM 150W max
Output SSB 300W max
Size 109 x 225 x 35mm

RM Mod 163 (KL203)

1-2 Days
R90
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RM KL 203  80W amplifier

Compact mobile amplifer with on/off switch.

Mosfet amplifier with maximum output of 100W  (typical output 80W).

Frequency 18-30MHz
Voltage 12-14V
Current 10A
Input AM/FM 0.5-10W
Input SSB 2-20W
Output AM/FM 100W max
Output SSB 200W max
Size 109 x 125 x 35mm

RM163p (KL203p)

1-2 Days
R89
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RM KL 203p  100W with pre-amp

Compact mobile amplifier with switchable pre-amplifier.

Mosfet transistors.

Neither the output nor the pre-amp gain are variable.

Frequency 20-30MHz
Voltage 12-14V
Current 10A
Input AM/FM 0.5-10W
Input SSB 1-20W
Output AM/FM 100W max
Output SSB 200W max
Size 109 x 125 x 35mm

RM Mod 160 (KL200)

1-2 Days
R04
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RM KL200  100W amplifier
A popular compact amplifier giving a maximum output of 100W on AM/FM and 200W PEP SSB.
Frequency 25-30MHz
Voltage 12-14V
Current 8-11A
Input AM/FM 1-5W
Input SSB 2-10W
Output AM/FM 100W max
Output SSB 200W max
Size 109 x 125 x 35mm

RM Mod 160p (KL200p)

1-2 Days
R05
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RM KL 200p  100W with pre-amp

Compact mobile amplifier with switchable pre-amplifier.

Neither the output nor the pre-amp gain are variable.

Frequency 25-30MHz
Voltage 12-14V
Current 8-11A
Input AM/FM 1-5W
Input SSB 2-10W
Output AM/FM 100W max
Output SSB 200W max
Size 109 x 125 x 35mm

RM KL405

1-2 Days
R12
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RM KL 405  200W amplifier with pre-amp

A high power broadband amplifier with variable output power and switchable pre-amplifier (not variable), this is a replacement for the KL400 (RM351p).

The features are all the same as the KL400, but the amplifier uses new transistors, has an updated look to it, and the power cable connection is improved on the rear.

The output can be adjusted in 6 stages, from approximately 50W minimum to 200W maximum (AM/FM).

For more details download the instruction manual.

Frequency HF
Voltage 12-14V
Current 12-22A
Input AM/FM 1-10W
Input SSB 2-20W
Output AM/FM 200W max
Output SSB 400W max
Size 170 x 210 x 62mm

RM KL405V (with cooling fan)

1-2 Days
R12v
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Currently Unavailable

New version with cooling fan

A high power broadband amplifier with variable output power and switchable pre-amplifier (not variable), this is a replacement for the KL400 (RM351p).

The features are all the same as the KL400, but the amplifier uses new transistors, has an updated look to it, and the power cable connection is improved on the rear.

The output can be adjusted in 6 stages, from approximately 50W minimum to 200W maximum (AM/FM).

For more details download the instruction manual.

Frequency HF
Voltage 12-14V
Current 12-22A
Input AM/FM 1-10W
Input SSB 2-20W
Output AM/FM 200W max
Output SSB 400W max
Size 170 x 210 x 62mm

RM KL503

1-2 Days
R503

A high power broadband amplifier with variable output power and switchable pre-amplifier (not variable), this is a replacement for the KL500.

The features are all the same as the KL405, but the amplifier uses Mosfet transistors.

The output can be adjusted in 6 stages, from approximately 60W minimum to 250W maximum (AM/FM).

For more details download the instruction manual.

Frequency 20-30MHz
Voltage 12-14V
Current 12-30A
Input AM/FM 1-6W
Input SSB 2-12W
Output AM/FM 250W max
Output SSB 450W max
Size 170 x 295 x 62mm

RM HLA-150

1-2 Days
R91
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HF Professional Linear Amplifier

A full range HF amplifier with automatic or manual band switching.

Ideal for use with the Yaesu FT817 & FT897 and Icom 703, but suitable for use with any low power HF radio.

  • Microprocessor controlled band switching
  • 6 internal low pass filters
  • LED band indicator
  • Baragraph LED output meter
  • Auto TX/RX switching
  • SSB delay switch
  • High SWR protection
  • Over temperature protection
  • High/Low output level
Frequency 1.5-30MHz
Voltage 12-14V
Current 24A
Input AM/FM 1-10W
Input SSB 2-20W
Output AM/FM 150W max
Output SSB 250W max
Size 190 x 290 66mm

RM HLA 300

1-2 Days
R92
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HF Professional Linear Amplifier

A full range HF amplifier with automatic or manual band switching.

Ideal for use with the Yaesu FT817 & FT897 and Icom 703, but suitable for use with any low power HF radio.

  • Microprocessor controlled band switching
  • 6 internal low pass filters
  • LED band indicator
  • Baragraph LED output meter
  • Auto TX/RX switching
  • SSB delay switch
  • High SWR protection
  • Over temperature protection
  • High/Low output level