most wanted grid squares

Dipole Antenna Radiation Patterns - Much confusion exists about the radiation patterns of antennas. In particular, the horizontal dipole is misunderstood by most who use it.

Wireless Antenna Connectors - A chart and picture of some of the most common connectors

Remotely-tuned loop antenna for LW and MW - This article describes how to build a loop antenna for low frequency (LF) and medium wave (MW) reception with remote-controlled tuning. The antenna is extremely sensitive and can be built mostly from parts from old radios and tape recorders. Like all loop antennas, it is highly directional, which allows you to null out unwanted noise sources.

Types of Coax in Satellite operations - Coax is a very important part of a satellite station. It is almost as important as the antennas you choose.

Quarter Wave Verticals - One of the most useful antennas in the repertoire is the Marconi or quarter wave grounded vertical antenna. Its invention made it possible to halve the length of antennas, simplifying communications, especially at HF and below.

Antique Mall Books - We have a large selection of PHOTOFACT, repair manuals as well as some Perpetual Troubleshooter's Manuals. New ones are added almost daily.

Radio Scanner Citizen's Band DX Group - RadioScanner (Radio Sierra) russian citizens band radio club. Most operators are from CIS countries in Europe and Asia.

STØRY - Sudan DXpedition March 2003 - On March 20, 2003, we brought Sudan, one of the most needed and top-ranking DXCC entities, on the air with the call sign STØRY (Sierra Tango Zero Radio Yankee). After some 48,000 QSOs, STØRY became hiSTORY on March 31, 2003.

AA1TT/B - 28.269 CLAREMONT, NH grid FN33uj

KB9NK - 10 Meter Beacon - 28.2845 Mhz Location: Jamestown Township, Michigan USA - Grid EN72bu

PMR446 - Resource center - PMR446 LPD433 SRD860 Resource site for PMR 446 users mostly in french

Catalina Amateur Repeater Association - Covering most of So. Cal. from 26 miles off the coast! 2m, 220, & 900.

Long Island Amateur Radio Club - 575-Long Island Amateur Radio Simplex Club, Operating locally on 147.575 FM Simplex from Grid Square FN-30

TSARC INC - Texas Southmost Amateur Radio Club

K1KAA - Mike DeChristopher Priority listing - The Contest Cam shows the M/S or M/2 position during most contests.

Phase Noise. - This is perhaps the most important parameter in many oscillators and it deserves an in-depth discussion on what it is, how it affects a system and how it can be minimised in an oscillator design.

The Heathkit Shop - Here you will find all kinds of information, PCB layouts, hints and kinks and case histories of some of the most popular Heathkit ham gear.

The Tube Center - Supplying over 2000 different vacuum tube types, valves, grid caps, sockets and capacitors. It is easy for Antique collectors, Ham radio operators, audio enthusiasts, broadcast enthusiasts and amateur radio hobbyists to buy, sell and trade vacuum tubes, electron tubes, audio tubes, valves, grid caps, sockets and capacitors

Grig Radio Control - Grig is a freeware simple Ham Radio control (CAT) program based on the Ham Radio Control Libraries (Hamlib). It is intended to be highly generic presenting the user to the same graphical user interface regardless of which radio is being controlled. Grig supports the most commonly used CAT commands that are implemented by Hamlib, and integrates well with other ham radio programs like Xlog and gMFSK. Grig has been developed on Linux, but has been ported on Mac and Windows OS.

COLLINS 30L-1 HF Linear Amplifier - The Collins 30L-1 Linear Amplifier has 1000 watts PEP power input on SSB and 1000 watts average on CW on all bands. It can be driven by the Collins 32S-3 Transmitter Collins KWM-2 or KWM-1 Transceiver, or most 70-100 watt exciters.

Ameritron AL-1200 to gs35b Conversion - The Ameritron AL-1200 Amplifier is in current production. In its factory configuration it uses a single 3CX1200A7 (triode) tube, grounded grid configuration. Re-tubing the AL-1200 with a GS-35b with success.

W2DTC Homebew RF Amplifier - Grounded grid, Cathode driven, 3CX3000F7 Triodes

Accurate Inductance Calculator - This page allows you to calculate in the most accurate way high-Q inductor coils.

Clean Up Your Signals with Band-Pass Filters part 2 - Part 2—You’re now much closer to saying goodbye to your unwanted signal problems!

500mw CW Transmitter - A very quick and easy way to get on the air is to build a "Michigan Mighty Mite" CW transmitter for 160, 80, 40 or 30 meters. It can't get simpler than this. It has very few parts, costs almost nothing, and it works! Cost estimate $10 by VE6WTF