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Antenna rotator: how it work,how to repair and how to modify it

Dchematics and photos of a secure power supply (short-cut, Rf feedback, high voltage etc.) by iz7ath

Drawings and short descriptio in spanish for dipoles and bazooka antenna.

Web receiver of hb9afz-using icom pcr 1000 on weekends 0800-2000 utc.

YAESU FT-1000/MP/MARK V (filed) interface, this one of numerous RTX sound blaster interfaces you can find on the internet, but this one include: FSK KEYING to use with the RTTY port, DVS-2 to use the interface in AFSK mode, this include all digital modes + voice keyer, CW KEYING

The G3TPW Cobwebb antenna covers five bands, 14 - 28 mhz, including the WARC bands

Amateur Radio G3TXQ Cobweb Antenna a 5 band antenna that can be quickly assembled.

Simple eprom programmer for 27Cxx family , used in TNC and G3ruh modem, eprom tutorial, schematics and KissEprom software for windows by iz7ath

Esr meter to measure the equivalent serie resistance of capacitors

How to build a trapped rotary dipole with many photos ecc.

Live scanner feed

Dedicated to Yaesu FT847 with mods infos and links... by F1MDT

Collectible,antique, Radio Tubes, special purpose and audio electron tubes and literature.

The page provides detailed instructions on how to build a double bazooka antenna for the 40 meters band. It includes information on materials needed, measurements, and assembly steps. The antenna can be configured as an extended dipole or an inverted V, offering low noise, wide bandwidth, and a 1:1 standing wave ratio. The content also offers calculations for other bands and includes photos of the antenna fabrication process.

This site is dedicated to mobile amateur radio operators, old and new alike. Whether you are into HF, or VHF operation, I trust the information presented will increase your enjoyment of our great hobby. With safety as a byword, there are articles on amplifiers, antennas, bonding, impedance matching, installing hardware, mobile equipment, noise and RFI abatement, wiring, and much more. I do my best to keep these articles up to date, and easy to follow.

DXFun Web Cluster is a Spanish-based DX Cluster website with chat, propagation reports, solar status, and DX news. Provides special features for registered users like filters, use of tools for calculating dxcc status. Dedicated reporting tools display spots reports with real time graphs that show the most used frequency bands, break by modes, cw ssb or digital modes.

How to obtain a dual voltage without a transformer

These web receiver based in Kiew Ukraine show PSK31 activity on 20m band 14.070-14.074 MHz remotely by using a web browser. Requires java by the MixW team

A comprehensive guide to CW world.

Jpole antenna plan for 144 and 435 Mhz

All about amateur radio, police scanner frequencies. Frequency Listings for Kentucky, West Virginia, Virginia and others. Add your URL to the Scanner Link Page.

WebSDR.org is a WebSDR network. List of all active WebSDR radios.

Pictures of the Ameritron AL-811 modification for 10 meter band extension by km5ps

Information about railroad radio channels and frequencies is provided along with laws relating to using scanners as well as tips and suggestions for programing and using radio scanners.

M0WYM slinky dipole setup into an attic.

US national radio amateur civil emergency service web site

A 5-band (20m-10m) HF antenna - Just 7ft square and great for a small garden. Build it yourself for around 60 GBP.

VX-5R Loose antenna cure, Vx-5r Free Band, VX 5 R modification for German, VX-5R expanded frequency mod, VX-5R MARS/CAP & freeband mod

4 elements HB9CV antenna for six meter band by JA1HWO

The starting idea was to build a battery charger for Pb battery used in car and moto...

Members only articles on HF mobile antennas, includes an interesting RV antenna with a 5 bands coverage, and another similar antenna for camper.

The webring that contains lots of links relateed to pirate radio

Flexnet and AGW packet engine tested and reviewed by IZ7ATH

how to easy and quickly unsolder and recover electronic components from old electronic board (SMD and not) by iz7ath Talino

A scanner resource for the Dallas-Fort Worth Metroplex including trunk information and a live scanner feed.

Discussion on cobwebb experiences on towertalk mailing list

A useful tool to make PCB

Ham Radio, Scanning, Marine, GPS and electronic web shop in Denmark

Orange County Sheriff Live Audio Feed at radioreference. Florida USA

Website for all Chesterfield Gateways on 446, using eQso.

Tune in live to the Grants Pass DPS police radio and Josephine County Sheriff's Office radio feeds.

Morse Tutor is a DOS based program written in C++. It can be used to practice morse code. Various options are available. Morse tutor with Complete Source Code and Binary is available for Download (32KB).

Win-EQF* for Windows provides sophisticated logging and station control features in a flexible and straight-forward package

To enable switching of a large number of antennas in a two radio setup, and get a smooth solution, calls for a lot of consideration.

What Amateur Radio (ham radio) is. How to get started in ham radio. License requirements. Where to find instructions.

How to easy connect two Pc together with a Ethernet Lan

A Study of Amateur Radio Gender Demographics. How many ham radio operators in the usa ? Estimated Number of Hams in Each State, by Gender

Moon bounce EME, meteor scatter and weak signal operations, introduction by ARRL.

Live Walton County Sheriff, Fire, and EMS Radio

ARRL page on SDR technology