WB7AM - Bob
MESA, AZ
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The vintage AM station
features a National NC-183 (non-D) receiver at left, a Heathkit
DX-100B transmitter to its right, and the latest acquisition and build,
an AN/ART-13 transmitter, at far right. The ART-13 is affectionately known on the air as "The Warbird". The microphones feed an audio mixer that provides peak limiting and additional controls. Transmitter frequency control is augmented with an HP counter that samples transmitted RF as well as provisions for using external, stable VFO's and exciters. The oscilloscope is capable of displaying the traditional trapezoid pattern for modulation depth measurement. This position also serves as a secondary computer workstation. (Click here for a larger photo ~650K) |
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Bob at the vintage operating position. In honor of the acquisition and build-out of the ART-13, the standard HF transmitter aboard the B-29 Superfortress in World War 2, a number of photographs and artwork from that era were posted on the wall above the desk. Detailed photos of this artwork are compiled in a separate webpage. (Click here to see the artwork collection) |
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The
corner SSB operating position at WB7AM is compact but fully functional
for all HF and VHF bands. The HF lineup consists of a Heil PR40
microphone feeding a W2IHY 8-band equalizer and EQplus compressor which
then sends transmit audio to an Icom IC-756 Pro III transceiver.
Power amplification is handled by a QRO Tech. HF-2500DX running a pair
of 4CX800's at the legal limit. A Palstar AT-4K tuner
touches up the antenna impedance match on band edges. The
computer screen and keyboard at the center of the console handle
logging and other data tasks. (Click here for larger photo ~300K) |
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The right-hand side of the
console showing the QRO amplifier, the Palstar tuner, other
auxiliary equipment and various memorabilia. (Click here for larger photo ~250K) |
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The left-hand side of the
console holds the IC-756 Pro III, the IHY boxes, the VHF transceiver,
various power supplies and speakers, and handy text references. (Click here for larger photo ~250K) |
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2nd operator's callsign
is K9DOG. (Click here for larger photo ~250K) |
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Bob is the backup bass guitar for this band which stars his
XYL as lead vocalist. |
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The entire Double Eagle Band. Bob is standing just to the left of his pretty, blond XYL, the lady in the dark jacket. | ||
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