Clean linear amp? Harmonic suppression
Dual band antenna? Diplexer 2m / 6m (Updated 5/2/00)
12V to 24V 0.5A DC-DC inverter by DC9XG with additions by GM4ISM
Need to combine several Power Amplifiers ? various hybrid couplers including the Bagley Polygon
TVI Filter.. Help to remove your transmissions from your television set.
VSWR to Return loss conversion table
Hybrid combiner balance calculator Excel spreadsheet
Noisefigure measurements, useful Excel spreadsheet , calc ENR with known nf and Y factor and calculate nf from known ENR and y factor.
Software:- Iris coupled waveguide filters (DOS executable, runs ok under XP or DOSBox)
Evanscent mode filters (external link to G4JNT.com) :-http://www.g4jnt.com/EVANFILT.pdf
Slotted waveguide antenna calculator (Excel Spreadsheet, W1GHZ derived) en Francais (F1CHF) and English on seperate tabs
Offset parabolic antenna feed calculator for determining the feed point of an offset dish (Excel) en Francais, with english translation
The Omni Flyswatter technical notes. An interesting low gain omnidirctional antenna, possibly of some use for beacons on the mm bands.