RF POWER OUTPUT:


FREQUENCY COVERAGE:


BANDCHANGE/TUNEUP:
DRIVE POWER:
INPUT IMPEDANCE:
HARMONICS:
INTERMODULATION:


T/R & CW KEYING:

TUBES & CIRCUIT:


METERING:




PROTECTION:






COOLING:


TRANSFORMER:


AC POWER:


PHYSICAL:

1.5 kW PEP or carrier, any mode, no time limit. Max PEP about 2.5 kW AC supply dependent.
All amateur bands 1.8-29.7 MHz including WARC;

5 second manual bandchange & tuneup by the numbers

55-60 W nominal for full rated output
50 ohms nominal, VSWR < 1.5:1
At least 50 dB below peak output @ 1.5 kW
At least 36 dB below peak output @ 1.5 kW


Vacuum relay QSK fast enough for high speed
CW & digital modes
Two
4CX800A/GU-74b ceramic-metal tetrodes;
resistive grid, pi-L output; common cathode w/RF negative feedback; regulated screen supply
Dedicated LED bargraphs for RF Output and RF Reflected Power; switched bargraph for HV, Ip and TUNE functions; LEDs for Normal & Excessive Grid Current; status LEDs ON, WAIT, OPR and FAULT


Grid & screen current limiting; trip to standby (automatic
reset) for excessive reflected power or average plate current, RF arc, severe mistuning; AC off trip for HV fault; primary & step-start fuses; cover AC interlock & HV crowbar switches; AC inrush-current limiting (Step-start).

Full-cabinet forced air; rubber isolated blower

3.5 kVA Peter Dahl Hipersil®


100/120/200/220/240V nominal, 50-60 Hz, 1 phase,
fused at 20A; operation on 100-120V may reduce available output below maximum rating.


1 7.3" W x 7.5" H x 16.5" D (439 x 188 x 419mm); 65 lb.
(30 kg). Plug-in transformer.

Alpha/Power 99 SPECIFICATIONS

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