wide range oscillator

The 4-Square Site - 4 Square Vertical Array website dedicated to vertical arrays antenna installations worldwide by G4ATA

An intro to OWA Quad's Priority listing - An introduction to OWA (Optimised wideband array) 50Ohm direct feed Quad beam antennas

The OWA Yagi Priority listing - An introduction to the OWA (optimised Wideband Array) Yagi antenna

Duoband DK7ZB-Yagis 2m and 70cm  ^updated - These Yagis cover the range of 144-146MHz on 2m and 430-440MHz on 70cm. They can be used for alle modes (FM and SSB/CW). On both bands the SWR is good across the whole band.

K9OZ - An attempt to explain why I love this strange hobby

Valcom - Valcom Guelph specializes in the design and manufacturing of a full range of MF Beacon 100 KHz - 600 KHz, AM Broadcasting 540 - 1700 KHz, HF 1.8 - 30 MHz, VHF 30 - 300 MHz and UHF 300 - 1,200 MHz and SHF up to 6 GHz antennas based in Canada

Kathrein Inc - Manufacturer of professional antenna and filter systems for communications and broadcasting, serving commercial and governmental markets worldwide.

PSI Antennas - Antennas for Broadcasters, PSI manufactures a complete range of slot antennas for UHF television broadcasting

RYMSA - The RYMSA Corporation designs, manufactures and distributes a wide range of sophisticated antennas and components for the telecommunications industry supplying technical solutions tailored to the needs of its clients around the world.

Quartslab - Quartslab has over 30 years of experience in supplying quartz crystals to the international communications market. Our product range includes the supply of quartz crystals in the frequency range 1.5 to 225 MHz in all popular holder types as well as crystal oscillators in DIL8 and DIL14 packages.

Martek Power - Martek Power designs and manufactures a wide of high performance power supplies for various industries. Power supplies AC-DC, DC-AC inverters, DC-DC, EMI Filters

APRS Servers - List of APRS server worlwide mantained by ae5pl

A Two-Way Morse Practice Set - The system consists of a pair of Morse practice oscillators connected by a piece of two-conductor cable. Pressing the key on one unit produces a sound in both units by Peter Parker VK3YE -

Dynamic range measurements - Comparison of FT-1000D FT-736R FT-817 FT-847 FT-897 IC-765 Orion TS-2000 Spectral purity of a continous carrier, of a SSB and CW signals

AussieScanners.com - For all your Radio and Scanning information in and around Australia. Online feeds, various links, heaps of information. Come and join Australia's Premier Radio Scanninf Forum

Fatpigdog's Real Time FFT Audio Spectrum Analyzer - Fatpigdog's Real Time FFT Audio Spectrum Analyzer. User interface has the look and Feel of an HP Spectrum Analyzer. But, in addition to the regular Spectrum Plot, it also produces detailed Waterfall plots. The user can optimize the color map, chosing from a wide assortment of color themes. This analyzer supports multiple traces, trace arithmetic and normalization.

DataSheet4U - DataSheet4U is a free electronic engineering tool that enables you to locate product datasheets from hundreds of electronic component manufacturers worldwide.

Basic RF Oscillator - A simple RF oscillator by Harry Lythall - SM0VPO

Digital Wattmeter - 300nW to 30W - The digital wattmeter project was created for the purpose of measuring power in the range of 300nw to 30w.

Wideband PreAmp's for HF/VHF/UHF - Wideband VHF/UHF/SHF monolithic PreAmp based on MARx-series by ON6MU

General purpose RF Wideband PreAmp - General purpose RF Wideband PreAmp based on BSX-20 transistor with a frequency range 14-550 MHz

Resolving 6 Meter Amateur Interference - Transmitting operations in the 50-54 MHz range offer some unique problems that over the past 50 years have stymied station owners, forcing them to tolerate quiet hours and hostility from family and neighbors attempting to enjoy other electronic services.

Receiver Dynamic Range - Receiver dynamic range is the ability of a receiver to receive a weak signal without loss of readability while a strong signal is present.

Frequency calibration procedure - Method of master oscillator calibration on most solid state rigs that are out there today by KK5DR

Kenwood TH-215 TH-415 mods - Unfilter LF output from the TH215/415 kenwood portable radio