Uploaded Sat Jun 20 2026 03:34 pm

Instructions to build a beam for 40 m - K5DKZ

Uploaded Sat Jun 20 2026 03:34 pm

ANTDL6WU v1.0 YAGI DESIGN program
for 50mhz & up based on the work
of Gunter Hock, DL6WU. Also designs
T-match, coax baluns, & provides
sources of materials. By WA2TIF,
K1DPP, & W1JOT. Written in Basic

Uploaded Sat Jun 20 2026 03:34 pm

UHF/SHF Antenna design

Uploaded Sat Jun 20 2026 03:34 pm

ANTFO v2.0 YAGI ANTENNA DESIGN
program for 144mhz & up based
on the work of Steve Powlishen,
K1FO. Also designs baluns, and
provides sources for materials.
Written in Basic by WA2TIF.

Uploaded Sat Jun 20 2026 03:34 pm

HF wire ant & trans line design v1.5 - WB4YZA

Uploaded Sat Jun 20 2026 03:34 pm

ARIEL v3.00 * HF Wire Antenna Design *
Provides design parameters for various 
HF (1 to 30 MHz) wire antennas.  Now in
color. All SF/SSN, LCF, T-line, sunrise
sunset functions have been removed from
v3.00. Still FreeWare by WB4YZA. 

Uploaded Sat Jun 20 2026 03:34 pm

Antenna system Analysis v1.1 for Windows

Uploaded Sat Jun 20 2026 03:34 pm

Postscript files generate azimuth equidistant

Uploaded Sat Jun 20 2026 03:34 pm

Calc Double bazooka - Win3x/Win95 by W4BEJ

Uploaded Sat Jun 20 2026 03:34 pm

Coax Calculator for Windows.  This will help 
you determine what type of coax would be best 
to use.  Very good for comparing side by 
side.  Gives info on RG58, RG8, 1/2 and 3/8 
inch hardline.  Covers frequencies from 3.5 
to 420 Mhz.  Every ham must have this on his 
hard drive!
*** Rush Limbaugh fans:                  ***
*** Check out your bonus in README.TXT!! ***
Requires VBrun300.dll.

Uploaded Sat Jun 20 2026 03:34 pm

Coax Calculator for Windows. This will help you determine

Uploaded Sat Jun 20 2026 03:34 pm

Discone Antenna Design - K5DKZ

Uploaded Sat Jun 20 2026 03:34 pm

ES-PROP version 1.4 November 1994
Sporadic-E Propagation Analysis 
Program.  A graphic sporadic-E 
analysis program that permits the 
analysis of Es MUF's and paths. 
Based on Emil Pocock's "Sporadic-E 
Propagation at VHF: A Review of 
Progress and Prospects", QST, 
April 1988. 
Version 1.4 corrects a problem in
calculating MUF's.  Previous ver-
sions produced too high of a value.

By James M. Roop, K0BI

Uploaded Sat Jun 20 2026 03:34 pm

╒══════════════════════════════════════════╕
│ HAMFTZ v.03 beta by HB9HFN vom 07.02.1995│
╞══════════════════════════════════════════╡
│     HAMFTZ, Ionospheric propagation      │
│              predictions                 │
╞══════════════════════════════════════════╡
│ Distributed by Radio Amateur BBS  HB9EBW │
│ USR  V.34               +41-61-981 69 69 │
│ ISDN X.75 + V.110       +41-61-983 10 09 │
╘══════════════════════════════════════════╛

Uploaded Sat Jun 20 2026 03:34 pm

Working EME or satellites? Calculate your
circularly polarized antenna with this prog-
ram. Shareware from OH0NC.

Uploaded Sat Jun 20 2026 03:34 pm

J-pole Design Prg V1.1 by WA2ISE

Uploaded Sat Jun 20 2026 03:34 pm

J-pole Design picture - BMP by KI7ZD

Uploaded Sat Jun 20 2026 03:34 pm

This program lets you design Yagi antennas
with Log-Cell feeding for high gain, wide
bandwidth and clean pattern. The author has
used this type of antennas for many years.
Shareware from OH0NC.

Uploaded Sat Jun 20 2026 03:34 pm

Excel sheet to design Logperiodic Dipoles

Uploaded Sat Jun 20 2026 03:35 pm

Calculate mast dim. needed v1.0beta By KD4NUE

Uploaded Sat Jun 20 2026 03:35 pm

Miniloop 1.1 - Small single turn antenna design

Uploaded Sat Jun 20 2026 03:35 pm

Magnetic Loop Antenna Design v3.1 By DK1NB

Uploaded Sat Jun 20 2026 03:35 pm

Meteor Shower Receive

Uploaded Sat Jun 20 2026 03:35 pm

Meteor-scatter v4.2b - predicts meteor showers

Uploaded Sat Jun 20 2026 03:35 pm

Meteor-scatter v4.2e - predicts openings

Uploaded Sat Jun 20 2026 03:35 pm

Meteor Shower transmit and prediction - OH5IY

Uploaded Sat Jun 20 2026 03:35 pm

NEC2 w/32 bit reals (for Powerstations)

Uploaded Sat Jun 20 2026 03:35 pm

(v 1.01) RFPROP - RF Propagation
Windows program (Freeware)
Calculates line-of-sight and diffraction
radio link path budget parameters.  
By Colin Seymour
cseymour@crl.co.uk

Uploaded Sat Jun 20 2026 03:35 pm

Mechanical design for antennas

Uploaded Sat Jun 20 2026 03:35 pm

TL Transmatch Calculations v1.7 By N6BV

Uploaded Sat Jun 20 2026 03:35 pm

m trap dipole construction By K5DKZ

Uploaded Sat Jun 20 2026 03:35 pm

Estimate freq coverage hour/month (Win ver)

Uploaded Sat Jun 20 2026 03:35 pm

Dipole calculations for Windows By N4PVU

Uploaded Sat Jun 20 2026 03:35 pm

Yagi analyzer patch for YA v1.0

Uploaded Sat Jun 20 2026 03:35 pm

Yagimax 3.11