70 cm beam

A 5 element beam for 10 meter band - Here is a very simple 5 element covering the entire 10 meter band (28.000-29.700) with a swr of less than 1.4 at the band edges

Trapped dipole for 40-80-160 meters  ^pop - Build a space efficient trapped dipole antenna for 40-80-160 meter bands using RG-58 and PVC pipe by W8NX

The All Copper X-Beam for 17 Meters - WA2UGT X-beam antenna for 17 meters band

The 2-Element-HB9CV-Beam  ^updated - The HB9CV-Beam is a 2-Element-Yagi with two driven elements and was introduced by Rudolf Baumgartner, HB9CV in the 1950ies. The Beam is a coax-feeded version of the ZL-Special Construction by DK7ZB for 2m, 6m and 10m

70MHz-Yagis - Various Yagi antennas for 70 Mhz band

Vertical half-wave aerials for 4m - Practical designs pictures and alternative design of antennas for 70 Mhz by Ross Wilkinson G0WJR

70cm yagi antennas - Pictures and plans to build 70 cm yagi antennas

70cm Longyagis - 70cm-Longyagis in 28Ohm-DK7ZB-Design

A two band halo for VHF Mobile - 50 and 144 Mhz with a single mobile antenna system

HF Antenna and Tower Raising - Raising a new tower and a pair of large beam antennas pictures and notes

Wire-Beam - Wire beam antenna for the bands 6m, 10m, 12m, 15m, 17m and 20m

4 element yagi for 20 meters - Pictures and plans of a 4 elements yagi beam antenna for 14 Mhz

ZS6BKW variant of the G5RV - The ZS6BKW variant of the G5RV claims to offer multi-band coverage without the need for a tuner. This article looks at whether or not these claims are valid in a real life installation.

Lunar-Link Amplifiers - Complete 70 cm amp by lunar link systems

Coastal ChipWorks - Amateur Radio Products From John Hansen, W2FS, Kenwood D700 Keyboard Interface, Expandable TNC with an Optional, remote controls for ICOM radios, frequency keypads for yaesu and icom radios

6m technical docuemnts - A collection of scanned diagrams and designs, documents and modifications for 50 Mhz ham radio equipment

Hourly STD Solar and Geophysical Report - Boulder K-Indices, Planetary K-Indices, 10.7 cm solar radio flux updated every 30 minutes by Canada's Space Weather center

BEIJING ELJVT - Sell the China made electron tubes over a long period of time, the vacuum tubes/electron valves/Power tubes/Audio Tubes/Thyratrons/Magnetrons and accessories, the tube sockets, the vacuum capacitors, high voltage ceramic capacitors, aluminum electrolytic capacitor.

BCmap - This program shows a polar-projection map of the northern part of Region 2 (Western hemisphere) with the patterns of all AM radio stations in Canada, the United States, Mexico and Cuba, on a specified frequency, with the map centered on a user-specified "home" location.

abc Morse Code for Palm - Palm OS Morse code tutor. Farnsworth support, Flashing backlight support, HUGE font in random free run mode, a cool scrolly bar when listening to QSOs, a handy Morse-to-text-and-back translator / converter, built-in Q code quiz, For Palm OS 3.5 or higher

OpenBCM - The BayCom-Mailbox is an amateur radio/citizen band AX.25 Bulletin Board System with AX.25 store and forward capabilities. The software is available for Linux, DOS and Win-NT. OpenBCM is opensource and freeware.

GI-7 B/GI-70 BT - The GI-7B (GI-70B) microwave triode

IK5MEN HF amplifier 10-160m. - Italian page including pictures schematics diagrams of an home made linear amplifier using four EL509 in parallel. Output power is about 700W.

KD5FZX 23 CM GS-15B PA - GS23B / 4CX1600U 1KW Power amplifier for 23cm

13cm RF Amplifier - This amplifier uses two 60w Spectrian amplifier boards with the usual input and output hybrid coupler and combiner.