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Maria Maluca Antenna - This small beam fed with VHF ribbon line consists of a dipole and a director adjusted for the desired band by dl8ncr

HF Receiving Loop - This experiment was inspired by Peter VK2TPM's receiving loop experiments for 80 metres.

Polarization, lines of force - While polarisation may seem insignificant compared with other considerations in setting up a communications system, choosing the right type can make significant improvement in performance.

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

The Half Square vs the Loop Skywire - by Jim Stafford, W4QO appeared in QRP Quarterly, Fall, 2006

DLØIGI - 28 MHz Beacon - 28.205 MHz Beacon in JN57MT Distrikt Oberbayern (C)

BAARC Welcome - The bay area amateur radio club (baarc) is a non-profit organization of people interested in amateur radio in the bay area of michigan.

Moapa Valley Amateur Radio Club - A club of approximately 20 Members. Interests range from Emergency Preparedness to seeing how many countries we can contact from local radio stations.

HFDX Discussion Forum - HFDX is for all Amateur Radio Discussions...All subjects covered From HF to Vhf/UFH, Antennas Equipment and more

Bay, Saginaw and Tuscola counties live scanner - Live streaming police scanners, streaming Bay, Saginaw and Tuscola counties.

OHIO 2 meter repeater map - prepared by KB8SSH since 2002

JAS-2 - JAS-2 is prepared to succeed the communication of JAS-1b launched in February 1990 and still working. So JAS-2 is also capable of phone,CW and packet BBS.

Solar Activity and 3-day Predictions - Prepared jointly by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center and the U.S. Air Force.

Solar Cycle Progression - The charts on this page depict the progression of the Solar Cycle. The charts and tables are updated by the Space Weather Prediction Center monthly using the latest ISES predictions

2 kW HF Amplifier Rebuild - Heathkit SB-220 amplifier repaired at W8UM

IC-746PRO TX Problem - The IC-746PRO is a great rig. But it has a few reliability issues, especially with the earlier-production units. This article addresses four problem areas:. IC151 on the RF Unit. Driver circuit on the PA Unit. HRX-muting circuit on the CTRL Unit. Predriver on the PA Unit.

ArsGrande Restored Stuff from Europe - Your source in Europe for restored Vintage Radios, Collectibles & Antiques

AMP Lady - Authorized factory sales and service center for Emtron. Repair service on all tube type amps HF Vhf Uhf from Palm Bay FL

Resistor Finder - Resistor Finder is a program that allows the electronics designer or hobbyist to find a combination of 2 resistors that, when connected in parallel, will provide the best match to a desired resistance.

5MhzLog - This logging application has been developed to improve the accuracy of the data being captured for the 5MHz Experiment.

Microwave RF Amplifier Design Tutorial - This tutorial will set out the design stages required to design a theoretical microwave amplifier

Desgin Power amplifiers with Genesys - Article on how use Genesys sowftware to design RF power amplifiers

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.

Remote antenna switch - A remote antenna change-over switching using relay powered over the coaxial feeder

5th order High Pass VHF Filter - Sometimes many VHF-UHF modern transceivers have problems with BROADCAST Interference and CROSS-modulation from FM commercial broadcast stations this article shows a simple Batteworth HI-Pass VHF Filter to reduce this problem