hf filter

Folded Dipoles for VHF/UHF Yagis  ^pop - Make your own VHF/UHF folded dipoles from aluminium tubing. Learn tips for folding yagi, softening the tubing, bending jig and make all waterproofing

G5RV Antenna  ^pop - The G5RV antenna, with its special feeder arrangement, is a multiband centre-fed antenna capable of very efficient operation on all hf bands from 3.5 to 28 MHz

Cheap VHF/UHF Antennas  ^pop - Cheap Yagi Antennas for VHF/UHF

KF4KHC's 2m SSB net listing - A listing of 2m SSB nets around the US.

Boletin YV DX VHF - Site dedicated to DX in 50 MHz and above, published weekly every Saturday in English and Spanish, many interesting sections. Statation of the week, articles, and more.

IARU Region II HF Band Plan - This band plan was approved by the XIII General Assembly of Delegates of IARU Region II held at Porlamar, Margarita Island, Venezuela from September 28 to October 2, 1998

Great Yarmouth Radio Club - Promoting Amateur and CB Radio. Uk repeaters, World Prefix list, UK & U.S bandplans, HF World-wide beacons, Free Ad's, Web site awards

Penn-Ohio DX Society - Unaffiliated amateur radio group based in New Castle, Pennsylvania dedicated to having fun on the HF bands

N2BR Bobby - Amateur Shortwave Radios Links and information,Also Swap Radio Groups Bearcat-scanner Drake Radios Hallicrafters and more

Gisela Dierking NF/HF-Technik Germany - Many interessting accessories, like unversal audiofilter, Mixer interface for sound card, highvoltage powersupply,accessories for 706, hamradio vacation, and more

ZX-YAGI Antennas - Fine HF beams for Ham Radio and CB made in Germany

EME resources by DL4EBY - Several kinds of operational data needed for Amateur Radio moonbounce (EME, earth moon earth) communications, the technical challenge amongst the various propagation modes on VHF, UHF and microwaves

User tips for VHF-UHF Operation - Reccomendations and tips for VHF-UHF operation

Dubus - Ham radio magazine intended for the serious VHF and up operator. Published in Germany, but fully bilingual.

Minnesota DX Club - The MDXC has monthly meeting in the Twin Cites. Coverage all bands from LW to UHF. We also have Summer and Winter DXpeditions.

ADDX programs schedule - List of transmissions compiled and updated by Andreas Volk, you can choose the language among a large choice. Website is in german.

Scanrec Scanner Recorder - Scanner Recorder (Scanrec) is a free audio recorder that is primarily designed to record speech. It has a VOX control that allows the user to save disk space when no sound is present in the signal. Since FM communications has such an effective squelch, the recorder works best with FM. HF ham bands and World Band radio have such a poor signal to noise ratio that the VOX gate on Scanrec might not be very easy to set.

BeaconSee - BeaconSee shows you, in real time, worldwide HF band openings on your PC. Analyses the audio signals from your radio, which is tuned to the NCDXF IARU HF beacon network and shows you the signal strength received from each of the 18 beacon transmitters as a plot of frequency spectrum against time.

Voice Descramble - This program descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO (numerical controlled oscillator) to re-produce the originally inverted audio band.

K9SE E-Layer Propagation Assessment - SE-PROP, Field-Aligned Scatter Assessment, Sporadic-E Propagation Assessment for the VHF Operator

Kenwood TS-570D RCP-2 software - Download Kenwood's free radio control software for the TS-570 HF

Radio Clock - Enables you to decode the time signals sent by various LF and HF radio stations in the standard frequency and time service

WB0NNI Home Brew HF Amps and Tutorials  ^pop Priority listing - Tutorials and other information on designing and building hf amplifiers. Includes tube data and amplifier projects.

Mode J Desense Filter - This type of filter can be used in a Mode J satellite station (uplink on 2m, downlink on 70cm) to reduce the problem of the uplink signal desensing the receiver

DSP-10 2-meter DSP transceiver - The DSP-10 is an amateur-radio, software-defined 2-meter transceiver that can be built at home. It operates not only on SSB, FM and CW, but also on four Weak-Signal modes. Features are tailored to operation on VHF, UHF and Microwave frequencies. By W7PUA