rf amp circuits

Sommerkamp users page - Info-page for Sommerkamp radio's by DO-X germany

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.

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

I4CHY Carlo Priority listing - i4chy 10 ghz tropo eme rs

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.

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

Radio History - Here you can find examples of old-time radio during its developmental period. The material consists of first-hand memories, gleanings from radio archives and other sources

ATV De ik1hgi - Projects and design atv de ik1hgi Progetti, circuits, master, fotos in Italian

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

Ham Radio & DSP - Related histories, facts and opinions by EA2BAJ, includes example of PSK MT63 QPSK audio files in wav file

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

Packet Radio User's Group - Japanes Packet radio club with link to Jouban TCP/IP network one of regional network of AMPRnet

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

Wind Watcher Warning Systems - High wind warning system, programmable, gives progressive series of alarms at three windspeed thresholds. Can be building-mounted or made portable for storm spotters, chasers, etc. Totally unique system!

QSL-Shop.com - Premium quality QSL cards, with samples, preview and on-line order

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

Finite difference program - This software is able to calculate the properties of odd shaped transmission lines. Particularly good in valve amplifier design, for aiding the design of transmission line resonators.

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.

Shacklog - Quality logging software for the Radio Amateur & SWL, real-time and post-event QSO logging,log analysis and reporting, QSL label printing, country status display, rig control, import of logs, interface to CallBook CD-ROMs

HamScope  ^{updated  pop} - HamScope is a freeware windows multi-mode communications package for amateur radio that supports: PSK31 BPSK and QPSK RTTY ASCII MFSK16 PACKET CW. Support radio control interface for several ICOM, TenTec, Kenwood, and Yaesu transceivers. Compatible with DXbase LOGic 7 RYLogit TRX-Manager YPLOG. By KD5HIO Glen

Commander  ^{updated  pop} - A free application that controls up to 4 Alinco, Elecraft, FlexRadio, Icom, JST, Kachina, Kenwood, TenTec, or Yaesu transceivers, switching between them manually or automatically based on frequency, and displaying frequency-dependent settings for devices like tuners and amplifiers; includes a bandspread, and supports transverters, frequency and mode tracking by an independent transceiver or receiver, SDR-based panadaptors, and SO2R switching with microHam or OTRSP-compliant devices.

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.

Push pull 2m amplifier - This shows an unsuccesful attempt to build a push pull 2 m amplifier, with the tubes in grounded screen.