Visitors to this page since 1st October 2001 : 
Return to Index
These are all DOS *.EXE programs. They are not zipped-up and can be run immediately.
TO DOWNLOAD: Click on the program's underlined name.
If unsuccessful, try using right mouse button and select "save", "save as" or a suitable alternative.
RJELOOP1 *
Transceiving, single-turn, loop aerials of various regular shapes.
RJELOOP2 *
Transceiving, single-turn, loop aerials of rectangular shape.
RJELOOP3 *
Receiving, multi-turn, square, loop aerials, ELF to HF.
DIPOLE1 *
Centre-fed dipole analysis. Vary freq and feedler length for optimum match.
HELICAL3 *
Helically-wound antenna performance, top-C loaded with rod or wire.
TOROID *
Ferrite & iron-dust cored, toroidal coils. Size, Mu, Turns, uH, pF, Freq.
VERTLOAD *
Base-fed vertical antenna performance, coil-loaded at any height.
RADIOETH *
DC & RF characteristics of a shallow-buried radial earth wire.
EARTHRES *
Earth Electrodes and Measurement of Soil Resistance.
TANT136 *
Performance on Long Waves of T Antennas above ground radials system.
ENDFEED *
Performance of Inverted-L Antennas above system of ground radials.
LINEAR1 *
Models Class-AB, Push-pull, Bipolar Linear RF amplifiers up to 30 MHz.
BALUN4 *
Models HF transmission line transformers, impedance step-up ratio 4-to-1.
RJELINE1 *
Analysis of openwire lines, 50Hz-1GHz, for any complex termination.
RJELINE2 *
Full analysis of balanced lines, 20Hz-1GHz, for any complex termination.
COAXPAIR *
Full analysis of coaxial lines, 50Hz-1GHz, for any complex termination.
RJELINE3 *
Full analysis of balanced lines with facilities for line xfmr design.
TRAPDIP *
Design of 2-band trapped dipole antennas including trap details.
PHASENET *
Design of T & Pi phase-shifting networks for use with antenna arrays.
TPINET *
Design of T & Pi impedance-matching and phase-shifting networks.
SWR-FREQ *
Simple & folded dipoles. Input Z. Feedline VSWR versus freq. Bandwidth.
SOILSKIN *
Enter soil characteristics. Display a table of skin depth vs frequency.
COAXRATE *
Find safe input power for given cable dimensions and SWR. 0.3-3000 MHz.
ZL_ZIN *
Compute load impedance from measured line input impedance, Zo & length.
SOLNOID2 *
Design of cylindrical, single-layer, air-core coils of all proportions.
MAGLOOP4 *
Performance of regular-shaped magloops versus height and type of ground.
MATCHPAD *
Design of resistive T and Pi matching-pads and attenuators.
MIDLOAD *
Design and performance of short, centre loaded dipoles above a lossy ground.
LCR *
Wideband behaviour of damped, LCR parallel-tuned circuits.
SWRMETER *
Modelling, design, calibration & operation of HF SWR meters, reflectometers.
VARNEY *
Performance of Tuner+Coax+Balun+TwinLine+Dipole, including G5RV.
LOADCOIL *
Design short vertical antenna and loading coil. Slide coil up/down for max efficiency.
PI_TANK *
Design Pi-match output cct for RF power amp. Effncy, harmonic supprn, phase shift.
ZOC_ZSC *
Compute trans line primary and secondary constants from Zoc and Zsc measurements.
Pi_L_Net *
Design Pi and Pi-L output networks for RF PA's. Effncy, harmonics, phase delay.
TETRODE1 *
Design of Class A, AB1, AB2 and C RF Power Amplifiers, beam tetrodes or pentodes.
TOPHAT1 *
Top-capacitance-loaded, short, vertical antennas, including vehicle mounted.
RJELINE4 *
Full analysis of balanced pair transmission lines. Line xfmrs with complex teminations.
T_TUNER *
Design & power performance of T-match networks for transmitting antennas.
GRNDWAV3 *
Groundwave propagation vs pathlength, type of terrain and frequency.
DIFFRAC1 *
Radio propagation by diffraction over a single obstruction. Tx to Rx.
DIFFRAC2 *
Radio propagation by diffraction over two successive obstructions. Tx to Rx.
LINOSITE *
Line-of-sight radio links up 500,000 kM and 90 GHz. Aperture, beamwidths, etc.
STUBTUNE *
Stub transmission line impedance matching transformer design. Includes line loss
MATCHSEC *
A Z-match by inserting in antenna feedline a short section of different Zo.
BOTLOAD *
Calculate value and design the bottom-loading coil for any vertical antenna.
Return to Index