Tokyo HY-POWER HL-355VKX VHF 300 Watts Linear Amplifier.
Four pcs. of 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.
?Latest LDMOS FET:
?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.
?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.
Frequency Range 144 – 148MHz amateur band
Mode FM / SSB / CW
DC Power DC 13.8V 40A max. (at 250W output)
RF Drive Power 35 – 40W typical (1 – 50W)
Output Power 300W nominal
RX Pre-Amp. Gain + 17dB
Final Transistor RD70HVF1 x 4
In / Out Connectors Type N
Others 1. RF Output Meter / LED
Low-Noise GaAs FET RX Pre-Amp
Warning Protection Circuit (protections for over-voltage,
ANT mis-match, and over-temperature)
Reverse DC Power Polarity Protection
Dimensions (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
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