lafayette hb 740

The HB9CV antenna - Gain of this two element antenna is the same like gain of classical three element antenna of the YAGI type. Dimensions for 7-14-21-28 Mhz by pa3dlp

The Doble L antenna for 160 and 80 m - The antenna has the form of a C, it is fed in the centre of the vertical section which is abt 20 m high by HB9TPL

The HB9CV - a two element 6m-beam - A dual driven antenna for the 6 meters band.

HB9MTN Loop for 6 meters - picture and dimensions of a coax loop antenna centered at 51.490 MHz

HB9CV antenna for 70 cm - An HB9CV antenna for the 70 cm band in french

160/80M Mammoth Beam - A full size 160M 3 element beam antenna and a 80 m 5 element beam antenna on a 330ft Tower

Sloper antennas  ^updated - HB9TQF sloper antenna notes, setting up a multiband trapped half sloper antenna for 80 and 40 meters in italian PDF File

How to make an HB9CV - A two meter version of the HB9CV beam antenna at G3VRE

Antenne VHF TOPFKREIS - A HB9BBN VHF antenna by F5KIN

N0EQ Trashbeam - A 2m, 6 element beam built from neighborhood garbage

HB9FBG Collection Old QSL - HB9FBG - Collection Old QSL

AntennaCompass Station Bearings - Antennacompass.com will calculate the distance and bearing for Ham, TV, FM, AM, and Shortwave stations and plot it on a compass like display.

Real-Time Maps - A Collection of Maps and Charts for the Radio Amateur

Digital modes Babel Tower - A review of ham radio digital modes with watefall differences between PSK RTTY Hellschreiber MFSK Olivia JT65A and digital voice by HB9TPL

SwissATV - swissATV.ch swiss site dedicated to Ham radio ATV

Digital Television - ATV - What is it? - How does it work? - How does it affect me?

FT-2000 Menu and Memory Saver - Save menu settings and memories of your Yaesu FT-2000

Yaesu 857 and 897 Extending frequency coverage - How to extend frequency coverage for yeasu FT 857 and 897 in italian by HB9TQF

The Hustler 5BTV Conversion to 160 Meters - Dave Cuthbert, WX7G

Miltimonitor - Linux Radio Transmission Decoder support AX.25 POCSAG DTMF ZVEI by Thomas Sailer, HB9JNX/AE4WA

50 Mhz Amplifier - This is a homebrew 100 watt six meter linear amplifier. The project was designed by Pat Bunn - N4LTA, and was featured in the October 1990 issue QST magazine.

Diplexer 2m 70cm - This DIPLEXER separates 2m from 70cm on the same coax cable, and allows to use 2 antennas over the same cable and permits transmission on one band and simultaneous receiption on the other band by hb9abx

Home Brew HF SSB Transceiver - KL7GQ Home Brew HF SSB Transceiver

KD1JV MMR-40 dead bug style - A 40 meter rig with SSB and CW operating modes. This is a low power QRP rig with up to 6 watts CW or PEP output.

RF Radiation and Electromagnetic Field Safety - Preprinted from the 1997 ARRL Handbook for Radio Amateurs. Thermal Effects of RF Energy, Safe Exposure Levels, Cardiac Pacemakers and RF Safety, Determining RF Power Density