differential mode rf cap

BV6 50 Mhz Yagis - Two Yagis for six meters band, one 1 wavelength long with a gain of 9.5dBd, and the other a 2.1wl model with a gain of 11.8 dBd.

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

How to build a tuned loop antenna  ^pop - How can you vastly improve your Medium Wave reception? its quite simple really, all you need is 120 foot of wire, a few lengths of timber and an old tuning capacitor with which you can build the answer to every DX'ers prayers, a tuned loop antenna.

EU Sprint Contest - It's a nice DOS program to handle the EU Sprint Contest written by Peter, DL2NBU (tnx). Both the screen and most of the commands are very similar to CT by K1EA so the program will be real friendly. Use a standard CW interface (see below) to connect your computer to the radio and send CW from your keyboard. SPRINT runs on any IBM compatible computer (XT, AT) with MS-DOS 3.3 or higher, W95 and W98. The ZIP file includes an ASCII file in English written by the author with instructions.

CWSP Award - The CWSP Award is issued by the CWSP "Grupo de CW de Sao Paulo" for all radioamateurs who have worked 5 (five) different members of the group (CW mode only), are valid contacts after October 15, 1976.

Tri-County Ham Radio Club N. Texas - Serving Tarrant, Parker, Wise counties, and city of Fort Worth, Azle, Springtown, Boyd, Weatherford, Saginaw

Albion PA Radio Stations - Live Police and Fire scanner feeds from Albion PA, Erie County PA USA.

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

RF Applications, Inc. - Specialized in RF Power Measurement Systems and other devices that make operating radio transmitting stations safer and easier.

XMATCH Antenna Tuner - Ham Radio Antenna Tuners--Full Legal Power--Patented Circuit--Outstanding Efficiency and Power Capability

I5XWW Crispino Kits - Ham Radio Kits, soundcard interface for digimodes, usb CAT Interfaces, PA interface cables, connectors, DRM hardware and software, DRM converters

APRS Documentation - This documentation and other files listed here are done by Bob Bruninga, WB4APR. Some of this documentation is applicable to MacAPRS and WinAPRS as well as dosAPRS.

Soundcard Interfacing - This page is an attempt to correlate the interfacing schemes for various Radio models, and Sound Card configurations.

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

OK1TEH - Prague - Active station on VHF UHF and in particular in TROPO/ES/AURORA/MS/EME modes

Yaesu 920 & SoundCard - This circuit provides an interface between the Yaesu 920 transceiver and IBM computer sound card which allows data transfer and control of PSK31, RTTY, KEYBOARD CW, and SSTV modes for Amateur Radio

RTTY Fan Club - Everything you need about RTTY is here! Operating modes, contests, software, hardware, clubs, societies, propagation, links etc

S marks the spot - Forecasting powerful solar explosions several days in advance now be possible

WACARS  ^pop - The only ACARS software to feature in-line message decoding and aircraft tracking. ACARS Reception and Decoding Software For Windows

WinMSDSP 2000 - Shareware program to receive and transmit high speed CW (morse code) used in MS (amateur radio communication mode) with MS Windows 95/98 and sound card.

WLOG2000 LogBook for OM SWL BCL CB - Database logbook for OM SWL BCL & CB with utility like DXCLuster DXtelnet PSK PSK-Pbbs (TNC or PC sound card) radio rotor CDbook interface and many other features. Free Update at homepage.

Next generation beacon - The next generation beacon platform for the OZ7IGY beacons should encompass both the analog and digital mode, i.e. FSK and MGM in a mixed mode configuration

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

A 50 MHz MicroWattMeter - A design for a simple microwattmeter. Input range -75 dBm to + 5 dBm. Frequency range 2 to 50 MHz

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