K7CAX -
Max
Phoenix, AZ
Back to Phoenix AM Page
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The AM
operating position at K7CAX. Left to right are: a Johnson Viking
Valiant, an R-390F receiver, a Dentron MT-3000A antenna tuner, and a
Johnson Viking 500 , plus a Heathkit HO-10 monitor scope and a Heathkit
counter. |
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Close-up
of the Viking 500. This is just the RF part; there is an equally
large box on the floor containing the power supply and modulator.
Tube lineup is a 4-400A modulated by a pair of 811A's for 300+ watts
carrier output power on 80-10 meters. |
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The
R-390F. The 'F' suffix attests to the extensive modifications
performed by Chuck Felton, KD0ZS, on this receiver to bring it up
to 21st-Century state-of-the-art. |
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The
Viking Valiant provides 160-meter AM capability for K7CAX and
serves as a backup transmitter for the Viking 500. Three 6146's in
the final, modulated by a pair of the same, give 150+ watts of carrier
power. |
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Max,
K7CAX, at the AM operating position with D-104 mike in hand. A
comfortable chair is a necessity for AM "old buzzard" QSO's. |
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2-meter
AM capability is currently provided by this Kenwood TS-700 all-mode
transceiver with about 5 watts of carrier output. The TV monitors
the Fox Network for broken news. |
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Vintage
VHF AM operation will soon be realized with this Ameco 6/2-meter
transmitter, VFO and nuvistor converter (back-ended by the Kenwood
general-coverage receiver). SSB gear is in rack at right. |
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HF SSB
is handled by an Icom IC-718 driving an Amp Supply LK-450 amplifier and
a Vectronics HFI-1500 antenna tuner. Also in the rack is the
station coax patch panel, a fine, old Bulova chronometer, another
Kenwood TS-700 and a Heath power meter. |
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All
'real' hamshacks have a wall of QSL cards and K7CAX is no
exception. These cover Max's operation from novice days through
present-day DX. |
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A key
ingredient of the big K7CAX signal on the lower bands is a conveniently
placed 70 ft. palm tree for dipole support. (Click here for larger photo ~200K) |
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Another tall palm tree
provides support for an Alpha-Delta DX-LB multi-band dipole for 160-meter operation. (Click here for larger photo ~200K) |
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Ready to go for Field
Day, or just to provide a convenient, backyard skyhook, this
trailer-mounted push-up tower and equipment enclosure was acquired for a
modest sum a few hamfests ago. (Click here for larger photo ~200K) |
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