low power amp

Building an own Stackmatch - Nowdays lots of people are putting up antennas to either beam in different directions at the same time or just to stack them and get a lower angle of radiation. Use this stackmatch to match you array.

EI7BA's Amateur Radio Pages  ^updated - Multi Band Quad,Cushcraft R5, R7, R7000, repair and maintenance, Remote Antenna Switching, Hexagonal Beam, Automatic Band Decoder, Low Band Verticals, Crank-up Tiltover Tower etc

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.

Zlog for windows - zLog for Windows is a freeware full-featured contest logging software that runs on Windows. It supports major international and domestic (JA) contests and is customizable to many other contests not directly supported by zLog. Features include CW keying via parallel/serial/USB interfaces, highly sophisticated TCP/IP network that allows instant synchronization of a log of an M/M station, rig control, PacketCluster connenction. By JJ1MED/AD6AJ

Low Land DX-pedition Team - Contains stories, pictures, audio files of all previous expeditions and current ones.

G1IVG Colin - Amateur Radio mods for FT847, TM732, TH48, C510, GP300, GM300, MCMicro, IC2800 plus others

IZ8DWG Onofrio - Includes Amplifier, antenna tuner, quad, yagi, rotators project in italian

VK2FLR DX Sounds Archive - Real Audio files containing interesting examples of VHF DX propagation from Sydney, Australia

Pravacy Speaker PMR446 - We are a leading developer and manufacturer PMR446 in Korea. Our new developed PMR446 model no. IFR-100 has new function like as private speaker it allow not to speak out from the radio and only you can hear the communication by using a private talk mode.

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

Ham.shineline.it - Maps of Italy for ui-view and many APRS progrmams and links in italian

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

G0ITP Ham radio SSTV Pages - The UK Home of Slow Scan Television

SSTV History - Slow Scan TV History from 1957 till today

ATV Compendium - by Mike Wooding, G6IQM, British Amateur Television Club

Yaesu FT-817 discussion group - Members discuss the operation of and modifications to this outstanding QRP rig that covers 160m 70cm with all modes. Site contains a large database of FT-817 FAQs and data files. Antennas, tuners, and power sources are also covered as related to this ultra-compact transceiver.

Duracell DR36 battery to the FT 817 - The Duracell DR 36 laptop battery can be easily find and supplies 12 volts X 4 amperes. The main advantages on this system are, the weight, size, quick battery changing and no stress to the FT 817 power connector by PY1AHD

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.

WINRLC - Simple freeware tool to calculate several kinds of HF filters. Use to calculate L-C and R-C band filters and bandpasses, L-C, L-R and R-C highpasses and lowpasses, coils and capacitors.

Cloudlog - Self-hosted Open source PHP Amateur Radio Logging Application originally started by Peter 2E0SQL to allow simple interaction with the Ham Radio Deluxe logbook using MySQL

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.

How modify a CB linear to use in HF band  ^pop - how to modify a Cb linear amplifier to use in HAm HF band

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

Fuse Those Batteries - The proper way to fuse the 12 VDC power cable between a battery and a mobile radio.

Homebrew projects by dl5dbm  ^pop Priority listing - KW,2-meter,6-meter,antennas,amplifiers,preamps,powersupplys, and more