hf filter

W6RCA's No-Tuner, All-HF-Band - W6RCA's No-Tuner, All-HF-Band, Horizontal, Center-Fed Antenna

Short HF Antenna - A short HF antenna by SM0VP0

OK1CDJ Ondrej - VHF, UHF page, technical articles, projects, datasheets

LinkPlus - LinkPlus products enhance the voice quality of HF SSB amateur. Eliminates virtually all channel noise and interference and greatly strengthens SSB radio signals

Commander Amplifiers  ^pop - HF anf VHF amplifiers made in U.S.A. by Command Technologies, Inc. now acquired by Palstar

Bencher Antennas - HF Vertical and Beam Antennas, antennas accessories by Butternut

Cushcraft  ^pop - Cushcraft Amateur Radio and commercial antennas HF and VHF vertical and yagi antennas owned by MFJ.

Sirio Antenne - Antenna for GSM, CB, marine, VHF/UHF, HAM and high frequency 1,9/2,4GHz

C3I Antennas - The finest in VHF/UHF antennas for Amateur and Commercial Applications. Antennas and Repeater Controller Accessories includes Rutland Arrays.

Bencher Inc. - Paddles, Keys, Filters, Antennas

Mirage - VHF and VHF amplifiers including repeater rf amplifiers

HF Propagational Resources - Create Online Maps, Check Forcasts and Conditions, more features being added each month, by hfradio.org

200 Morse Code QSO`s by Les Johnstone, GM¤SOZ - These are 200 Morse Code QSO`s which might typically be heard on the HF bands.

The Adcock HF RDF Antenna - The Adcock antenna has been used for a long time for RDF. It is basically an interferometer.

High Frequency Propagation Models - Institute for Telecommunication Sciences High Frequency Propagation Models

Radio Shack 2-Way/VHF Radios - RadioShack manuals for 2 way radios, scanners and cb radios.

High Sierra Antennas - HF and VHF antennas for cars, trucks, homes, trailers and recreational vehicles

Universal Radio  ^pop - Online Catalog. All about Radio comms, HF VHF Scanner CB radios, antennas and accessories

Weather Satellite FAQ - A comprehensive guide to receive Weather Satellites signals in wefax mode

Monitoring the Crisis in the Balkans - By the Monitoring Times Staff, NATO HF Frequencies, NATO Common VHF/UHF Frequencies and English Language Shortwave Broadcasts from the Balkans

CwGet  ^{updated  pop} Priority listing - A program to decode morse code (CW) via sound card to text. It can work as narrow-band sound DSP-filter also. No additional hardware required — you need only receiver and computer with a sound card. Can integrate with AALog logger.

HF Propagation Models from NTIA ITS - Windows-95/98/NT 32-bit HF Propagation Models from NTIA/ITS

600 Watt HF Amplifier  ^pop - Schematics plans by K9GDT and all infos to build a 600 Watt HF Amplifier

QRP Amplifier - HF Bands QRP linear amplifier by SM0VPO

The Islander HF RTX - A practical solution by Cuban radio amateurs, hybrid circuit with mostly defunct TV set parts.