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RF Output |
1500–2000W keyed carrier or SSB—no time limit.
Constant carrier modes 1500W RF output—no time limit with auxiliary cooling fan.
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Frequency Coverage |
All amateur bands 1.8–24.5MHz. 28Mhz only with modification by licensed amateurs.
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Bandchange/Tuning |
Initial output matching process in less than 3 secs (typically 0.5 secs).
Preset matching process or bandchange takes less than 0.2 second to move to different segment,
same band and less than 1 sec for QSY to different band.
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Tuning Memories |
Non-volatile for up to 10 antennas per frequency segment.
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Drive Power |
Typically 50W for 1500W output.
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Input Impedance |
50 ohms nominal. VSWR less than 1.5:1.
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Output Tolerance |
Up to 3:1 VSWR (2:1 on 160m) at full rated output before SWR protection
circuit actuates. Higher SWRs tolerated at lower output.
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Harmonics |
At least 50 dB below peak output at 1500W.
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Intermodulation |
At least 35 dB below peak output at 1500W.
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T/R and Keying |
Vacuum Relay: QSK capable.
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Tubes and Circuit |
4CX800A/GU74b tetrodes (2); resistive grid, PI-L output with RF negative feedback.
Regulated screen grid voltage.
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ALC |
Negative going, grid derived, –11V max, rear panel adjustable.
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Metering |
Comprehensive. Remote Control Unit provides flexible monitoring of all amplifier operating parameters.
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Protection |
Grid and screen current limiting, power inrush (soft-start provided), trip to excessive reflected power, RF arcs, password access protection if needed, correct T/R sequencing, tube exhaust overheat, cover interlock and HV crowbar.
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Fault Diagnosis |
Remote Control Unit display and LEDs plus "INFO Box" for 12 most
recent events. PC interface (RS-232), plus remote phone line interrogation feature.
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Cooling |
Full cabinet forced-air. Rubber isolated blower.
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Transformer |
3.5 kVA with strip-wound Unisil-Ha core.
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AC Power Requirements |
100/120/200/220/240 VAC nominal at 50–60 Hz. 3500VA single phase at full power.
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Physical
| RF Unit: WxHxD = 440x180x450mm.
RCU: WxHxD = 135x25x170mm.
Shipped in two cartons total weight 36kg. Plug-in transformer for ease of installation and transport.
No controls on RF unit except ON/OFF. RF unit may be located up to 3 metres (10m with optional kit) from RCU.
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