hf tubes linear amp

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

Italian VHF Beacons - Beacon list mantained by I5WBE

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

Microwave audio samples - 10GHz Rainscatter audio files

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

Scout Telecomunicazioni - VHF, UHF, CB antennas for marine, mobile, base, remote radio monitoring and control system

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

Amateur Packet Radio Gateways - Amateur Packet Radio Gateways by dl1eis

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

Ken's N. Alabama Scanner Radio Frequencies - Gadsden Alabama area frequencies including MILCOM UHF listings.

Ham Center s.r.l - Italian Dealer, electronic components, tubes, capacitors inductors and more

VOACAP - Point to Point hf ionospheric communications analysis and prediction program

Simplex - SIMPLEX is a free windows program which transforms any transceiver into an audio repeater. It works on HF, VHF, UHF etc with SSB, CW, FM, packet, SSTV and every modulation mode.

SRL QuickSilver QS1R VERB - The QS1R VERB is the most advanced open source digital down conversion (DDC) receiver board on the market. It features a Linear Technologies LTC2208 16 bit, 130 MSPS Analog Digital Converter (ADC) and an Altera EP3C16 Cyclone III FPGA. Connectivity to the PC is through a high speed USB 2.0 interface. QS1R covers 15 kHz through 55 MHz in its standard configuration and can be used in undersampling applications to 300+ MHz.

Freq 51 - Program samples the input, performs an FFT, and graphs the output

WV7U - Hank's Amp Pages - WV7U YC156 and 3CPX800 amplifier projects. See pictures, schematics, test data, links, 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.

50 MHz GS35B 1500 Watt Amplifier - 50 MHz 1500 Watt Russian GS35B amplifier. Well documented. Complete construction details,pictures,schematics, and more.

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.

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