fir filter

N3KNZ Loop designs - Inspired by his first magnetic loop featured on this site, John takes loop building by the horns, and comes up with some excellent designs

Build your first dipole - The dipole antenna is an easily designed and made antenna usually used on HF, although can be (and sometimes is) made for VHF and UHF antennas, and in varying forms is also used as part of different designs of antennas – i.e. as the driven element for directional antennas.

EUDXF - The European DX Foundation (EUDXF) is the first and only all European Foundation to support DX activities. It is a non-profit organization established in 1986 in the German town of Bad Bentheim

South Florida DX Assn - Florida DXers meet every other month in Ft. Lauderdale to discuss DX, antennas and such. We host the DX forum at the Tropical Hamboree in Miami the first Saturday in Feb.

Nevada County Live scanner - Nevada county CA live fire/police scanner by fmwifi.net

Yakimia Scanner - Listen to police and fire from the Yakima valley

New York Police scanner, NYPD FDNY  ^pop - Listen to NYPD and FDNY fight crime and fires on Staten Island. New York police scanner radio streaming in real audio.

Gwinett County, GA - Police and fire broadcasts

Oregon Live - Follow the news as it happens. Listen live as the police and fire service do their jobs

Grand Rapids Police Scanner - Listen as Grand Rapids cops fight crime and firefighters battle blazes, live and uncensored, 24/7.

Cincinnati Police and Fire - WCPO police scanner ohio

MassLive.com: Police Scanners - Listen to the Holyoke and Springfield police and firefighters, live and uncensored. This is the real thing, so anything could

Syracuse Police/Fire Scanner - Live scanner feed

Council Bluffs, Iowa Live Scanner - Live scanner feed from Council Bluffs, Iowa. Police, IHP, EMS, Fire.

TX RX Systems Inc - TX RX Systems Inc. manufactures signal boosters, rf antennas, transmitter combiners, cell enhancers, land mobile radios, duplexers, receiver multicouplers, bidirectional amplifiers, bda, rf amplifiers, rf filters, rf cavity filters, rf combiners, rf components, in building rf coverage, repeaters, repeater amplifiers, rf management equipment, rf systems, and rf solutions. TX RX Delivers Reliable Solutions.

Otto Engineering - OTTO Communications designs and manufactures audio accessories for two-way radios used in public safety, police, fire, retail, hospitality manufacturing and other markets.

Elcom Research - Small enough to carry it in your shirt pocket and powerful to fit your needs. It will be your companion for years, thanks to the "FirmwareLiveUpdate" feature. Use it for everyday packet, for APRS, as a Tracker with a GPS or as APRS digi.

Tasmanian emergency services - Police, ambulance and fire frequencies

Melbourne metro scan frequency guide - Police, fire, transport, ambulance and many more frequencies

S.A. Scanner Monitoring - Police, emergency services, fire and other useful frequency pages

ESP - ESP provides repair service down to the component level. We offer reasonable rates. Out-of-date equipment is not a problem.

MTS Ham Radio Repair - Radio / electronics repair ICOM authorized service center

The Voice Of Mongolia - The Voice Of Mongolia is the country's only overseas broadcasting service and is operated by Mongolian Radio & Television, a public service broadcaster of the Mongolian Government.

BR-universal-Filt - Freeware real time DSP filter particularly for applications of amateur radios , IIR, FIR filter, low-pass, high-pass, band-pass filter, band suppressor (notch filter) individually adjustable

Filters for NDB reception - RF Filters to help with NDB reception problems