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-Hâ 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. |