rf output 1500-2000 w keyed carrier or ssb - no time limit. constant carrier modes 1500w rf output - no time limit with auxiliary cooling fan.
frequency coverage all amateur bands 1.8-24.5 mhz. 28 mhz only with modification by licensed amateurs.
bandchange / tuneup initial output matching process in less than 3 secs (typically 0.5 secs). preset matching process / bandchange takes less than 0.2 second to move to different segment, same band and less than 1 sec for qsy to different band.
tuning memories non-volatile for up to 10 antennas per frequency segment.
drive power typically 50w for 1500w output.
input impedance 50 ohms nominal. vswr <1.5:1.
output tolerance up to 3:1 vswr (2:1 on 160m) at full rated output before swr protection circuit actuates. higher swr's tolerated at lower output.
harmonics at least 50 db below peak output at 1500w.
intermodulation at least 35 db below peak output at 1500w.
t/r and keying vacuum relay: qsk capable.
tubes and circuit 4cx800a/gu74b tetrodes (2); resistive grid, pi-l output with rf negative feedback. regulated screen grid voltage.
alc negative going, grid derived, -11v max, rear panel adjustable.
metering comprehensive. remote control unit provides flexible monitoring of all amplifier operating parameters.
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.
fault diagnosis remote control unit display and led's plus "info box" for 12 most recent events. pc interface (rs-232), plus remote phone line interrogation feature.
cooling full cabinet forced-air. rubber isolated blower.
transformer 3.5 kva with strip-wound unisil-h?core.
ac power requirements 100/120/200/220/240 vac nominal. 50-60 hz. 3500va single phase at full power.
physical rf unit: 17-1/4"w x 7"h x 17-3/4"d
(440w x 180h x 450d mm).
rcu: 5-1/4"w x 6-3/4"d x 1" h
(135 x 25h x 170d mm).
shipped in two cartons total weight 80lb (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.
