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160-meters antenna problems and solutions - Bill Orr W6SAI ham radio techniques. Improving ground connection, computer analysis of the antenna, modelling sample antennas pdf file

A 40 meters DDRR Antenna - A direct drive ring radiator antenna for the 40 meters band by W6WYQ QST article.

The K9AY Terminated Loop - A compact directional receiving antenna

How to build the K9AY loop - This document provided by AT technologies explains how to build the K9AY loop receiving antenna.

Flat plate aerial for 23 cm - This is a simplified design for /P aerials yet offers about a +12dBd gain on 23 cm

The ZS6BKW Multiband HF Antenna - Antenna design from ZS6BKW (G0GSF), similar to the G5RV, but it actually resonates on five bands It’s only 90 ft long 27.51 m, with a 40 ft 12.2 m downlead

Live Amateur Radio Contest Scores - This website accept live Amateur Radio Contest Scores from contesting logging programs, and produce web output showing the real-time status of participating stations. by W1VE

FT5GA live DX Spots - DXWatch provide live spots for FT5GA Glorioso dxpedition 2009

Douglas: Live Douglas County Sheriff - Douglas County Sheriff dispatch channel

ScanJackson: Live Jackson County Sheriff - This site allows you to listen to Jackson County, Georgia Sheriff and Fire Department radio communications.

ScanLee: Live Lee County Sheriff - This site allows you to listen to Police, Sheriff and Fire Department radio communications from around Georgia.

ScanLumpkin: Live Lumpkin County Sheriff, - This site allows you to listen to Lumpkin County, Georgia Sheriff and Fire Department radio communications.

Illinois Live scanner - Live dispatch from Bureau, LaSalle, and Putnam counties in Illinois. Sponsored by LinComm and Scanillinois.net.

Ham Radio Terms - This glossary contains general definitions of typical amateur radio terms

US grid square map - A pdf file of US grid square map by Icom america

ITU Zones map - A PDF File of ITU zones made available by Icom America

CQ Zones World Map - A PDF file of CQ Zones made available by Icom America.

Getting started on RTTY - A complete guide from the station setup, rtty software customization, tips on tuning rtty signals and setting the proper audio level and filters by Andrew G8GNI M5AEX

Alinco Manuals - Alinco Instruction manuals on the Internet mostly on PDF format

Ameritron manuals - Manuals section for the Ameritron HF amplifiers mostly in PDF format

Kenwood manuals - Many of Kenwood’s instruction manuals are available for download. Manuals are in PDF.

DK9IP - A Band Decoder for the TS-850 - A Band Decoder for the Kenwood TS-850 HF-Transceiver by Winfried Kriegl DK9IP/KH7CD (April 2001)

TS-850 service manual - Here is the Service Manual for the Kenwood TS-850 Transceiver split into four parts for download. TS-850 instruction manual also available

Diplexer design notes - Standard diplexer design is based on singly-terminated Butterworth filters.

YCCC 6 Band Receive Bandpass filter - This is a 6 band receive only filter designed to protect your receiver front end and provide 45dB reject at the stop bands.