K7BDY
-
Martin
Oro Valley,
AZ
Back to
Tucson AM Page
|
|
|
|
|
|
|
The
AM Voice of K7BDY from Oro Valley/Tucson - the well-maintained BC-610I. |
|
|
|
|
|
|
The
AM operating position - essential functionality on a desktop: Kenwood
R-599 Receiver, Speech Amp for BC-610, Heath VFO for clean stability
and Heath Wattmeter. Microphone is an unamplified D-104. |
|
|
|
|
|
|
|
Martin,
K7BDY, at the AM operating position. Shack is spacious add-on at
the rear of the house. |
|
|
|
|
|
|
|
The
SSB position contains vintage transceivers (Swan 700cx, Kenwood
TS-530s), Heath SB-1000 and HL-2200 Linear Amplifiers, and a
Heath Mohican general-coverage receiver. (Click here for larger photo ~100K) {Click here for LARGEST photo ~1Meg}
|
|
|
|
|
|
|
SSB
operation is supplemented with a Yaesu FT901 transceiver and a Henry
2K-4 Amplifier. (Click here for larger photo ~100K) {Click
here for LARGEST photo ~1Meg}
|
|
|
|
|
|
|
A
key part of the K7BDY 160-meter system is this 70-foot, series-fed
vertical monopole with capacitive tophat and top-end loading coil. (Click here for larger photo ~100K) {Click
here for LARGEST photo ~1Meg}
|
|
|
|
|
|
|
A
remotely controlled, motor-driven variable inductor at the base of the
vertical allows precise matching over the entire band. It is
housed in the larger, gray weatherproof box. (Click here for larger photo ~100K) {Click
here for LARGEST photo ~1Meg}
|
|
|
|
|
|
|
The
"secret sauce" in the 160-meter stew: a surplus variable inductor of
unique design for antenna matching. It winds or unwinds a
flexible silver-plated strap around a ceramic form as driven by the
reversible DC motor and gear train. (Click here for larger photo ~100K) {Click
here for LARGEST photo ~1Meg}
|
|
|
|
|
|
|
Antenna
requirements for higher bands are fulfilled by a multiband 3-element
beam and wire dipole atop a 60-foot tower. (Click here for larger photo ~100K) {Click
here for LARGEST photo ~1Meg}
|
|
|
|
|
| |
|
|
