a) Antenna Impedance Matching Process: aided by a plate-load True Resistance Indicator (TRI).
b) Two antenna outputs selectable by a button on the front panel.
- Cover interlock for operator’s safety;
- Inrush power-on current limited to the nominal consumption;
- Control grid, screen grid, and plate currents;
- Antenna relay contacts, including RF power induced in antenna from another nearby transmitter;
- Antenna matching quality;
d) LED bar-graphs for forward peak power and reflected power.
e) Service visualization of grid 1 DC current, grid 2 DC voltage, and plate DC current.
f) Tube: a single Svetlana 4CX800A (GU74B) high-performance ceramic-metal tetrode with plate
dissipation of 800 W, grid driven, forced air-cooling.
6-3. Storage and Shipment
Should it be necessary to ship the amplifier, use the original packing as described
Switch off the amplifier, pull the line (mains) plug out of the outlet, disconnect all cables from the rear
panel of the amplifier (remove the ground connection the last), and then pack the amplifier in its original
a) Acceptable storage environment: The amplifier may be kept packed in a dry, ventilated and unheated
location (with no chemically active substances such as acids or alkalis) within the following environment
- Temperature range: -40 to +70 degrees Celsius
- Humidity: up to 75% @ +35 degrees Celsius.
b) Shipping Size and Weight: WxDxH: 530x470x280mm, 18kg (21x18.5x11 inches, 39.6Lbs).
c) All types of transportation may be used, including storage in an aircraft baggage compartment at up
to 12000 meters above sea level.
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