feed line calculation

The Double Bazooka Antenna - The Double Bazooka Dipole is a very efficient single band antenna which is very quite, and does not require the use of a balun. This antenna consists of coax (RG58) or other 50 ohm type with the shield split at the center and the feedline attached to the open ends

Ladder line J-Pole - Building a VHF or UHF Ladder Line J-Pole Antenna

T-Match Construction - The T-Match with its balanced feed point is one method of feeding a Balanced Dipole.

Russian Callsign database - Russians Ham on-line lookup database. Search and create new callsign records. The most full russian and CIS callsign database (more 50,000 CIS records). More than 1,400,000 international calls.

Energy line 2000 - Solar power, biodiesel fuels, wind energy, streaming video, articles, news, and more. Renewable Energy and Emergency Communications by Terry McGleish

Fareham & District Amateur Radio Club Priority listing - Fareham District Amateur Radio Club UK

ScannerBuddy.com  ^pop - Directory of emergency scanners pinpointed by location on a map of the US with direct feeds

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

IK-Telecom - The official web-site of the firm IK-Telecom, Finland, manufacturer of base station antenna-feeder systems

MicroSignals - MicroSignals produces a line of RF and IF signal processing components that offer high performance at an exceptional value. To achieve this MicroSignals began with an engineering team that possessed an excellent background in RF Transformer and Balun design.

Otto engineering - Otto engineering is comprised of two divisions otto controls and otto communications. otto controls designs and manufactures a full line of switches and grips used in heavy equipment, aerospace, marine, medical and other demanding applications. otto communications designs and manufactures audio accessories for two-way radios used in public safety, police, fire, retail, hospitality manufacturing and other markets.

Begali - Officina Meccanica Begali has been manufacturing electro-mechanical precision components since 1960, and our line of fine keys and paddles for the ham community are a more recent addition.

G-tor - G-TOR is a trademark of Kantronics, Inc. G-TOR (Golay-Teleprinting Over Radio) can be viewed, in part, as a variant of the Automatic Link Establishment (ALE) protocol, outlined in MIL-STD-188-141A.

PTT line interface for ICOM IC-706 family - Interfacing tips for ICOM IC-706MKII transceiver with a Collins 30L-1 linear amplifier

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

ARRL: Kenwodd TS-2000 test results - ARRL Laboratory Expanded Test-Result Report Kenwood TS-2000 prepared by American Radio Relay League, Inc. Technical Department Laboratory in pdf format

FT-1000MP with the HEIL Goldline - Optimization notes provided by Andy, KK7AC

Yaesu VL-1000 amplifier - The Yaesu VL-1000 Quadra HF Linear amplifier

Bit line meteo - Data loggers, meteo devices

LCF Calculator - LCF online Calculator, calculate relation between Frequency Capacitance Inductance and Reactance

Grounding and RFI - Described system was designed to provide a high level of lightning protection - there are three levels of defense to guard against let-through. It isn't perfect, but does, however, follow good guidelines and shows measured improvements in RFI reduction.

BPL FAQs - Frequently asked questions about broadband over powerline (BPL PLT)

NOJCG BPL tutorial - Tutorial about broadband over power line and the new FCC rules restricting how it can be deployed.

Wave report BPL tutorial - Broadband Power Line Tutorial by James Stenger

Broadband over power lines - Compatibility and BPL RF Interference