Tokyo Hy-Power RF Linear Amplifiers

Solid State RF Linear Amplifier Engineering  

144 MHz ~ 148 MHz 2m VHF AMPLIFIER
Detailed Views and Specifications
HL-355Vkx 300 Watt VHF 2m Amplifier


Four high gain RF FETs, RD70HVF1, by Mitsubishi Electric are used at final stage in the parallel push-pull amp.form. Due to its high gain HL-355Vkx accepts wide range of drive power from 1W to 50W, achieving 25W to 320W of output power.

This is a completely solid-state amplifier capable of handling all transmission modes. There is a built-in super low noise GaAs FET RX pre-amp that helps operator receive weak DX signals.


Adoption of Multi-Protections:

It incorporates four kinds of protection circuits developed by our own advanced technologies. This sophisticated protection gives you a warning (shut-down) before getting into any trouble.

LED Output Level Meter:

LED bar graph on the front panel indicates an approximate output power to monitor transmission status.

Low-Noise RX Pre-Amp:

It incorporates a low-noise RX pre-amp utilizing a performance-proven GaAs FET.

More cozy VHF communication can be enjoyed with the HL-355Vkx.

Auxiliary Remote Controlling Function:

A jack for the connection with a remote controller (optional HRC-60) is provided on the rear panel. Remote controlling of the power supply, the RX pre-amp and so forth can be controlled in the remote location.

Large Aluminum Heat Sink:

Large heat sink of our original extrusion design effectively radiates the heat generated at the final FET transistors.

Open PDF File Manual will be available soon!
HL-355vkx VHF 2m Amplifier (300 watts)
Alternate Views:
Rear | Inside

Frequency Band 144 MHz ~ 148 MHz 2m Band
Operating Modes FM / SSB / CW
DC Power DC 13.8V 40A max at 250W output
RF Drive Power 35 - 40 Watts typical (1 - 50 Watts)
Output Power 300 Watts nominal
RX Pre-Amp. Gain + 17dB
Final Transistor RD70HVF1 x 4
In / Out Connectors Type-N
Misc Information 1. RF Output Meter / LED

2. Low-Noise GaAs FET RX Pre-Amp

3. Warning Protection Circuit (protections for over-voltage, ANT mis-match, and over-temperature)

4. Reverse DC Power Polarity Protection
(W) x (H) x (D)
Approx. 220 x 86 x 356 mm
Approx. 8.7 x 3.4 x 14.0 inches
Weight Approx. 5.4 kgs./ 12.3 lbs
Accessories HRC-60 External remote controller
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