fir filter

W5JI Boatanchor Haven - Dedicated to the Care and Feeding of BoatAnchors, includes some Drake catalogs, and 1968 Collins Mechanical filter catalog pages

Antique Radio Repair Service - I collect, repair, refinish, restore, and sell tabletop, tombstone, and cathedral, radios from the mid-1930's through the mid-1950's.

The 9K Contest Club - The first Kuwaiti contest club,idea of 9K2RR

Ham Radio And The WTC Disaster - "W2IK's Personal experience being the first responder at ""ground zero"" during the WTC 9/11 disaster."

LiveScannerAudio group - Live Scanner Broadcasts Online 24/7. Learn how to broadcast your scanner as well as listen to others worldwide. Police/Fire/EMS

Hampton Police & Fire Dept - Live dispatch audio from the Hampton Police and Fire Department by www.hrconnect.com

Blackford County, Indiana Live Scanner feed - Blackford and surrounding counties Police, Fire, EMS, and EMA.

Virginia Beach Fire Department / EMS - Live streaming audio of the Virginia Beach Fire Department and EMS services by www.hrconnect.com

Norfolk Fire and Rescue - Live dispatch audio from Norfolk Fire and Rescue by www.hrconnect.com

Hampton Road's Emergency Services - STPD, VDOT Mutual Aid/Airport Fire, Hospital to Ambulance COR by www.hrconnect.com

Newport News Police & Fire Dispatch - Live dispatch audio from Newport News, Virginia by www.hrconnect.com

Coral Springs Police and Fire Dispatch - Coral Springs Police and Fire Dispatch Florida

Braintree Fire Local 920 - Fire department live scanner

ON7TZ Recording web site - The WW MP3 Recording website. Welcome on the first MP3 Recording website of Radio Amateurs

The Italian Amateur Radio Webring - The first Italian Amateur Radio Webring

Radio Filters.Com - Low Cost FM Notch Filters: Radio Filters.com, manufactures frequency control products including band pass, notch, reject, electronic filters

ARTRA QRP Kits - Lots of homebrew kits, you can buy kits or download as free, Association des Réalisation et Techniques RadioAmateurs. Transceivers, filters, converters, frequency meters, antenna analyzers, ATV receivers, interfaces

PROCOM Antennas - Manufacturer of communications antennas, bandpass filters, RF combiners, receiver multicouplers, diplexers, duplexers, RF connectors, RF circulators, RF isolators, RF couplers and SWR meters

Timewave manuals - Timewave Documents for User Download, PK-900 Multimode Data Controller, PK-232 Multimode Data Controller, DSP-232 Multimode Data Controller, DSP-9 Noise Reduction and Bandpass Filter, Audio Signal Processor and Noise Reduction Filter, Audio Signal Processor and Noise Reduction Filter for Yaesu SP-5 and SP-6 Speakers

ScanNewBedford.com - Welcome to scannewbedford.com. This site was built for people who would like to hear a live broadcast of New Bedford Massachusetts public services. There are also a few frequencies from other local towns such as Dartmouth, and Fairhaven being broadcasted on our live audio feed. The web site is free for everyone to use and pass along to another friend. Thank you and enjoy the Scan New Bedford Live Scanner Audio Broadcast of New Bedford`s Police, Fire, and EMS.

Eurofrequence Dierking in Germany - Accessories, like universal audiofilter, Mixer interface for sound card, highvoltage powersupply, accessories for 706, hamradio vacation,Roger Beep, Microphons, Headsets and more. Please look

Blue's radio stuff - Site for radio, antenna, and scanner sales. There is also some useful information about mods and mic wiring.

Spectrum Lab  ^pop - DL4YHF's Audio Spectrum Analyser Spectrum Lab or Speclab started as a simple FFT program running under DOS a long time ago, but it is now a specialized audio analyzer, filter, frequency converter, hum filter, data logger and more. Can be used for MTHELL QRSS, DFCW, PSK, MSK, Castle

TVI filters - These filters are in use by hundreds of VHF weak signal operators and have been proven to be an effective solution for fundamental overload problems.

6m High Pass TVI filter - Are you suffering from TVI? Then why not try this filter for size. It is a three-stage high-pass filter that blocks low-frequency 50MHz signals while letting through UHF TV.