70 vertical

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

20 Meter Vertical Moxon - A 14 mhz version of the vertical moxon antenna homebrewed by Paul M1PAF

OH2FFY - Car Antenna Priority listing - Low cost build up of a 20 meter vertical for stationary mobile use that performs exceptionally well.

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

7elements yagi for 70MHz - 7ele homemade DK7ZB yagi for 70MHz

Dualband yagi for 50 70 Mhz - PA5DD version of the dual band yagi antenna for 50 and 70 Mhz

GW8IZR - A simple 70MHz antenna - A simple way to make a four metre antenna

Dual band 6m/4m Yagi - This antenna was optimized with the goal to minimize any changes in 6jxx6 impedance/lobes. The result is a 7 el on 70 MHz with a little loss of gain comparing with the other monobands of the same lenght.

YU7EF Pop 6 & 7 Elements antenna - YU7EF Pop 6 elm for 50Mhz and 7elm for 70Mhz, a 4+6m douband with 12mm Alu tubing

DF9CY 11 Element for 432 MHz - A short good performing antenna for 70cm

80 Meter Pizza Pan Antenna - This is a resonant, half-wave, vertical antenna. It takes up little space in the back yard, was designed for operation on a single frequency 80 meter PSK net, and is reasonably inexpensive to construct by Chuck Hines, K6QKL

VHF/UHF Wideband Portable Dipole - A portable dualband dipole robust and compact antenna usable for horizontal and vertical polarisation by ON6MU

Radiation Characteristics - Tailoring Patterns for HF Verticals

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

G8JNJ Broadband HF Vertical Antenna - G8JNJ Broadband HF Vertical Antenna - Requires no tuner - great results from 40m to 10m plus 80m & 6m with reduced performance

VHF UHF European Beacons - MMMonVHF maintains the data for 6m, 2m, 70cm and 23cm bands in collaboration to LA0BY. This site allow display of a beacon map and latest beacon spots.

ZS1J/B - 28.2025 MHz. 5 Watts output to a half wave, end fed, vertical antenna.

VA3GRR - Radio Beacon - VA3GRR is a radio beacon, operating on the 10 meter amateur band. Its frequency is 28.205.5 MHz. It runs just under 5 watts of power into a vertical half-wave ringo style antenna

W5RTX Beacon - 10 Meter Beacon on 28.259 mhz. 15 W into 1/2 wave vertical.

Operating NVIS - Near Vertical Incidence Sky Wave (NVIS) Propagation, PPT presentation by Marc C. Tarplee, Ph.D. N4UFP

Near Vertical Incidence Skywave - NVIS definition at Wikipedia

Acom 1000 70 Mhz modification - ACOM 1000 modification uses electric band switching, such that both 6m and 4m operation can be maintained.

ICOM IC-706MKIIG Tech Note - If your IC-706MKIIG will not power up without even hearing a relay click, check the state of the HV line.

Low Pass Filter Construction - Low Pass Filter Module Construction Manual

Lightning Protection : Protecting each I/O line - KB22UT Article on how protecting ham radio station and in particular I/O Lines such as AC power, coax cable, control circuits, telephone line.