136 144mhz

Four over Four for 144MHz - This article describes the 144MHz horizontally polarised antenna at VK1OD in November 2008. The antenna uses two identical four element arrays that were constructed around 1970

144MHz Cubical Quad - A 16 elements cubical quad for the two meters band

12el 144MHz Plus2 LFA Priority listing - A Low-Noise Urban 12 element Plus2 LFA Yagi antenna for 144MHz no match required, 50Ohm direct feed

Superloop receiving antenna for 136kHz - Receiving loop antenna project by G3LDO for 136kHz

Lazy Loop - The "Lazy" Loop by Jim Moritz for 136 Khz

Cubical quad for 144MHz - An 8 elements cubical quad for 2 meter band

144MHz Cubical Quad - A project by N6BG for a four element cubical quad antenna for the 2 meters band

G0FTD's experimental INDiX antenna - This antenna is meant to be hung indoors within a window frame for those who can't get an outdoor antenna erected. Plan include dimensions for 50mhz 70Mhz and 144Mhz

Sidemount VHF/UHF Antenna - This antenna is designed to be mounted off the side of a tower. Works on 136-153 Mhz range but also on 70 cm band

Comparison of two windom antennas - The antenna comparison being reported was between a commercial Chelcom 136ft multi-band windom designed for 80m to 10m and a home brew 260ft full size windom designed for 160m to 10m by G0VVN, G3KAU and G3GRO

VKV zavody Contest site - These pages containing informations about contesting on 144MHz and higher bands. All informations are only in Czech language.

E-skip Warnings via Email - Automatic 144MHz E-skip Warnings via Email for European Region

Hellschreiber snapshots - 136khz and hf hellschreiber images

136KHz portable station - 136kHz portable station project by PA4VHF, Dick

Long Wave Radio - The World of LF, by G3YXM reference site for longwave operations. Introduction to operating on 136 and 501 Khz

Build a 136 kHx TX - Two versions of a 350 and 900 W output TX for longwave by G3YXM

Antennas for 136kHz - Extensive article on building antennas for the 136 Khz band by ON7YD

Mobile on 136kHz - G3YXM mobile operations on 136 Khz !

Extreme narrowband modes: QRSS - ON7YD narrowbands modes on 136 Khz

G4OEP QRSS pages - Pictures of QRSS Signals, a homebrew receiver for 136 Khz

144MHz E-skip Alerts for North America - Automatic 144MHz E-skip Alerts for North America

Kenwood TH-D7a TX band modification - Allows TX 136 - 173.995 and 400 - 479.995

TANT 136 - DOS program for calculating the performance of a T antenna. Gives loading coil info and matching plus ERP by Reg G4FGQ

144 MHz Amplifier using 2xGS-35B - This 144 MHz PA is using 2xGS-35B tubes. It was build by Joel F6JMT for the Radio Club of Fontainebleau F8KTH

Preamplifier for 144 mhz - CX2UA 144 mhz preamplifier homemade project in spanish