feed listing

W5GI Mystery Antenna  ^pop - W5GI Mystery Antenna is a multi-band wire antenna that performs exceptionally well even though it confounds antenna modeling software. This antenna covers 80 to 6 meters with low feed point impedance and will work with most radios, with or without an antenna tuner. It is approximately 100 feet long, can handle the legal limit, and is easy and inexpensive to build. It�s similar to a G5RV but a much better performer especially on 20 meters.

2-Element-Yagis for HF  ^{updated  pop} - 2-Element parasitic Yagis for the Shortwave-Bands 10-12-15-17-20-30m. The antennas are feeded with the DK7ZB-match. A quarter-wave choke of coax is grounded at the socket.

The 2-Element-HB9CV-Beam  ^updated - The HB9CV-Beam is a 2-Element-Yagi with two driven elements and was introduced by Rudolf Baumgartner, HB9CV in the 1950ies. The Beam is a coax-feeded version of the ZL-Special Construction by DK7ZB for 2m, 6m and 10m

Better Feedline Loss Measurements with Antenna Analyzers - Various publications through the years have shown how the SWR measured on a shorted (or open) feed line can be used to calculate feed line attenuation

Transmission Lines - About feed lines, parallel lines and coaxial lines, notes on impedance, SWR, Baluns, velocity factor and more by NZART

Eliminating TX RF Feedback Problems - Malfunction of transceivers due to stray RF pickup is a common problem, especially when using end-fed antennas, high-impedance feedlines, or a poor ground counterpoise

LU9DPD Windom dipole - A multiband windom dipole antenna for 80 40 20 10 meters, feeded with a home made 4:1 balun, in spanish.

DK7ZB 144 mhz Yagis - High gain, good pattern and acceptable bandwidth. These aims can be realized with a radiation-resistance of 25-35Ohms, because the 28-Ohm-feedpoint is very simple to match.

Copper Cactus Single Coax Feed - Single Coax Feed to Multi-Band Copper Cactus Antenna.

Orlando Florida live scanner  ^pop - Public safety scanner feed from Orlando Fl

Louisville Metro Police - Louisville Metro Police Department live scanner feeds, includes 8 live feeds and commonly used 10 codes.

Dallas police live scanner  ^pop - Listen to the Dallas Ambulance, Fire & Police live scanner radio feed

Las Vegas Metro Police Department 24/7 Scanner  ^pop - Las Vegas, NV Police scanner. It is 24/7 and live.

Attleboro - Mass Live Feed - Live feed Attleboro Ma and Cumberland RI, Fire and Police

Houston area firefighters live feed - Houston FD live dispatch audio and discussion group

Southern Maryland Police & Fire - Southern Maryland (somd) police/fire live scanner feed

Eufaula, AL Live police scanner - Live polive scanner feed from Alabama

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

Las Vegas Live Scanner  ^pop - Las Vegas, Nevada Police and Fire Live Scanner

Minnesota - Willmar Police & Fire-EMS Scanner Feed - WILLMAR MN KANDIYOHI CO. Police fire EMS highway dept.

New York Live Police Radio  ^{updated  pop} - Listen to NYC Live Police Radio

Citizen Weather Observer Program - A private-public partnership with three main goals to collect weather data contributed by citizens; to make these data available for weather services and homeland security; and to provide feedback to the data contributors so that they have the tools to check and improve their data quality

NDB Weblog - Many NDB radio enthusiasts publish their reception logs on the web. A completely separate system designed for individual listeners to make their own logs and obtain statistics on NDBs, DGPS and now Navtex Stations they have received. Log listings can be exported in a multitude of formats and then emailed to the NDB List

Amateur Radio Repeater Directory - Amateur Radio Repeater Listings at your fingertips for the first time on your PDA

Negative feedback output circuit - Negative feedback is often referred to as shunt feedback in conjunction with emitter degeneration.