K5AM


Homebrew station, DM62: 
Photo   
Block diagram
NCJ article: A Homebrew Contest Station

Horse Mountain contest site, DM54.

Homebrew transceiver:
Photo
General description; QEX article: pdf
HF section; see QEX, Nov 2001.   photo   pdf
Receiver third-order dynamic range measurements: 3IMD
Receiver second-order IMD measurements: 2IMD
Circuit Details
Remote RIT

Transverters
Amplifiers
Boatanchors
Antennas
Signal/One CX7 Test, alignment, modifications, repairs, operating.
Misc

Articles:
"Overload Protecton for High Voltage Power Supplies" download pdf
NCJ article: "A Homebrew Contest Station"
2 Meter KW amplifier: 2mkw.pdf
Hapirat, QST, Sept, 2004. Expanded version: hapirat.pdf
K5AM ham radio technical article list
Mathematics

Horse Mountain Six Meter DX Association; W5SIX.

Photos:
K5AM Workshop
Barney the Beagle and Nicki the Dalmatian
Polly the Shepard/Beagle mix and Lizzie the Beagle puppy
Night sky in New Mexico

Callsign History. K5AM, Canal Zone, 1939. QSL card



K5AM


Mark Mandelkern, K5AM, was first licensed in 1948 as W9ECV in Wisconsin. Mark's main ham operating activity is 6 meter DX, with 146 countries worked. He also enjoys HF DXing and contesting, with DXCC confirmed on 10 bands and a number of top-ten contest awards. Mandelkern is emeritus professor of mathematics at New Mexico State University.