N2BHA Ham Radio
Ham Radio, Homebrew circuits and techniques, radio circuits, and electronics. Dec 13
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High loss coax can really reduce your output power. A coax with a 3 dB loss will suck up half the power, allowing the antenna to radiate the other half. End of part 1.
The QRP world heard of the passing of Frank G3YCC - who most know of from the masses of information he put at our disposal through his website. Frank put a lot of time & effort into this and it would be a great pity if that work was lost. Permission to reproduce his site has been granted by Frank's wife who is pleased that he can be remembered in this way by the hobby he loved. The maintainer of the site, K3HRN, believes it should be a living work in progress as a tribute to Frank, and will make corrections and additions as occassion warrants. Please report any broken links, missing files, etc to K3HRN .
Capacitor uF - nF - pF Conversion Chart When reading schematics, repairing radios and buying capacitors, you often must convert between uF, nF and pF. Paper and electrolytic capacitors are usually expressed in terms of uF ( micro farads).
The National Radio Astronomy Observatory (NRAO) Very Large Array (VLA) radio telescope NRAO employee personal webpage for Paul Harden (NA5N), IF/LO Lab, X7142 pharden at nrao.edu Last updated 14 Feb 2008 • The HOMBREWER'S HOBBY PAGE • Intended to promote an interest in electronics, engineering and science by hams and hobbyists NEW Stuff . . . [PDF] The QRP-L.org Group Project rig , by Jason Milldrum, NT7S Test procedures and brief circuit description by NA5N (including oscope and spectrum analyzer displays) [PDF] The QRP-L.org Group Project rig Annotated schematic with test voltages and waveforms by NA5N
How to make PCBs at home in 1 hour & W I T H O U T special materials What you need You need also: a blade cutter, scotch tape, sandpaper, kitchen paper, cotton wool, vice, hacksaw.