newark pd

Antenna Baluns: What they are - Baluns what do they do, in a pdf file by W7EL

Build a Double Bazooka HF antenna  ^pop - Build a double bazooka coaxial dipole, broad-band dipole antenna

Vertical antenna for 2 mt and 70cm  ^{updated  pop} - How to Build a Dual-Band Antenna for 2M/70cm

New Carolina windom antenna  ^pop - PDF file by QRP Expressions by By N. T. Len Carlson, K4IWL

USA frequency allocations - The radio spectrum in usa, PDF File representing the united stares frequency allocations in graphical mode, by NTIA

AJ3U - SuitSat web log - Suitsat audio recordings and updates Welcome to AJ3U.com - The website of A.J. Farmer Hollywood, MD, USA

Austin Antenna - Austin Antenna employs leading-edge antenna technology in the production of the highest performance antennas currently available. Marine Antenna, Multi-band Mobile, Point-to-Point, Base Station, Wide-band Land Based, LPDA, Linear Omni, Triplexer, Scanner Antennas

Canada, radio spectrum allocations - Graphical maps of radio spectrum and frequency allocations in canada

Pactor III - PACTOR-III is a software upgrade for existing PACTOR-II modems that provides a new data transmission mode for improved speed and robustness. PACTOR-III is not a new modem or hardware device. Most current PACTOR-II modems are upgradeable to use PACTOR-III via a software update since PACTOR-II firmware accommodates the new PACTOR-III software

JT65 - JT65 is a digital protocol intended for Amateur Radio communication with extremely weak signals. It was designed to optimize Earth-Moon-Earth (EME) contacts on the VHF bands, and conforms efficiently to the established standards and procedures for such QSOs.

Icom IC-746 impressions and mods. - This article is a follow-up of Dallas Lankford's article Icom IC-746 Pro: Impressions and Mods, published on www.kongsfjord.no and (partially) in the Swedish Short Wave Bulletin.

Icom IC-746 Pro Arrl tests - ARRL Laboratory Expanded Test-Result Report ICOM IC-746 Pro

FT817 DSP noise reduction noise - Add-on audio DSP unit from BHI

Yaesu FT-857 brochure - Yaesu PDF brouchure for FT-857 transceiver

LDG FT Meter for 857 and 897 - Meter for Yaesu FT-857 and FT-897

Yaesu FT-857 undocumented features  ^pop - The Yaesu FT-857 has a number of undocumented features some of which are very interesting.

Yaesu FT-857 RSGB Review - June 2003 RadCon review of te Yaesu FT-857 in pdf format. Need login to yahoo group.

Yaesu FT897 specifications - Includes a link to brochure and operatings manual in pdf format

Yaesu FT-897d mods - Programming interface schematics for Yaesu FT-897D programming interface, Yaesu 4 pin plug PDF User Manual for Yaesu FT-897D (FT 897 D FT897D)

DRM modification for 897 - English and germand PDF document for the Yaesu FT-897 DRM modification

Batterytech - Buy nimh, ncicad, and li-ion batteries, chargers, and analyzers for laptops, pdas, digital cameras, cellular phones, nextel radios, hand held scanners, and eliminators

GeoAlert-Extreme Wizard - GeoAlert-Extreme Wizard maintains updated geophysical indices and displays the information in a friendly - at a glance - manner. GeoAlert-Extreme Wizard features a Global Maximum Usable Frequency, MUF, map that creates and manages predictions from the VOACAP engine. Displayed geophysical indices include: solar wind Bz component, speed and pressure, current WWV type indices and predicted solar flux, planetary A-Index and probability of major storms at middle latitudes for the next day.

Install a PL-259 on an RG-8X  ^pop - A better way to install PL-259 connectors on RG-8X type coax by Dan Richardson, K6MHE

Delabs technologies Product Design and Engineering - Around 200 electronic circuits in pdf format or images, There are also over 1000 links to useful electronics, freeware, open source websites. There are some 100 useful documents, software and pcbs too. Mainly industrial electronics, instrumentation. Covers Various aspects of electronics and basics of circuit design.

A 6M Transverter - Build a transverter based on a 6M receive converter. A 32MHz TTL oscillator is used as the local oscillator for both transmitting and receiving. RX/TX switching is handled by three SPDT relays.