l) Operating Environments
• Temperature range: 0 to +50 degrees Celsius (32
o
F to 122
o
F);
• Relative air humidity: up to 95% @ +35 degrees Celsius (95
o
F);
• Height above sea level: up to 3050 m (10000 ft) without output deterioration.
6.2. Functions
a) Antenna Impedance Matching Process
• Plate-load True Resistance Indicator (TRI) aided;
b) Two antenna outputs selectable by a button on the front panel
c) Protections
• Cover interlock for operator's safety;
• Inrush power-on current limited to the nominal consumption;
• Control grid, screen grid, and plate currents;
• T/R sequencing;
• Antenna relay contacts, including RF power induced in antenna from another nearby
transmitter;
• Antenna matching quality;
• Reflected power;
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.
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