hf amplifiers

HF Antennas for small places - Isotron antennas and EH antennas, solutions for small places by F5IXU in french

K8CU Log Periodic Antenna - Plans, photos, electrical and mechanical design for this HF Log periodic antenna.

Contest Assist Priority listing - VHF & Up Software management, Station Log and maps, in English

DL1IAO Stefan - HF Radio Contesting and personal information: Latest scores, station tour, DL contest records and large photo section, maps and software

1721 Hf Roundtable Group On 40 Meters! Priority listing - The 1721 HF Roundtable Group meets nightly on 7.261 + - QRM. Just a big ham radio family. Informal QSO'S in a rountable fashion.

F9HS VHF EME - My hamradio activity : very high frequency communications using the moon as a passive reflector.

Eco Antenne  ^updated - Italian antenna manufacturer. Verticals, yagis, delta loops, mobile and wire antennas from HF up to VHF and UHF bands including ham radio CB and commercial product lines

J-ames Pole Antennas - Manufacturer of all types of copper J antennas,uhf,vhf, 6 meter,10 meter, portable roll ups, combinations etc.

Fenghuo Communication - HF and VHF transceivers manufacturer based in China

The KM5ES Weak Signal Homepage Priority listing - This website is for amateur radio op's that use VHF/UHF weak signal communication's. Also homepage for the Sidewinders on Two Radio Club or SWOT.

G7ORR VHF DX and Contest pages - The G7ORR and GW7ORR VHF DX and contest website.

OK1JKT Karel - Information about traffic on SHF, 10GHz band

WSJT/JT44 Forum - Meet users of the new and revolutionary WSJT/JT44 mode, ask for help, arrange skeds, learn how to run JT44 and WSJT.

Make More Miles On VHF - "Lists of hotlinks for VHF radio amateurs hunting dx via meteorscatter, aurora, Es, Tropo; eMail listings of operators qrv in meteorscatter; listing of current VHF DXpeditions"

4NEC2 antenna modeler  ^pop - 4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and experienced antenna modeler. Can be interfaced to HFwin32 propagation prediction software.

Beacon-Prediction Wizard Priority listing - Specialized interface for the communications-analysis-prediction engine provided by VOACAP, predicts the expected performance of high frequency, HF, radio systems

ACE-HF Propagation Prediction Software - Professional PC software for hams that uses VOACAP and includes area coverage maps animated by time or frequency

78thFloor - Download Sw 4 sstv,cw,rtty, via sb, and other appz 4 radioamateurs

KMIJ Kenwood Remote Control for TS-850/TS-450 - Windows radio control software for the Kenwood TS-850S and TS-450S HF Rigs. Originally released as shareware, there is a version that is now Freeware, with free registration upon request. Old program by VE3MIJ

Shortwave Log - A logging and radio control program. Supports HFCC, ILGRadio, FCC HF, FCC AM, PrimeTime Shortwave, and more!

1.5 to 30 Mhz RF Amplifier  ^pop - This high range amplifier is very small [SB200 size] Vacuum variable input and output caps as well input and output switching.

Quokka's Sawtron Museum - Information on Sawtron Kyodo VHF & UHF radio transceivers

K8CU Technical Topics - Well documented Amateur Radio HF/VHF antenna projects, high power Russian GS35B RF amplifiers, mobile RFI solutions, related accessories, vintage radios, Six meter equipment, and useful techniques by K8CU are inside.

CAT Interface for Yaesu - schematic diagram for CAT interface for yaesu HF Transceivers

AWA RT85A (RT85) notes - Conversion, programming, and software notes for the AWA RT85A UHF transceiver for 70cm