rf amp circuits

Inexpensive GPS mobile Antenna - An inexpensive external GPS antenna, for 1.5 GHz band for GPS receiver, If you operate APRS or just need an external antenna for your GPS receiver, here’s one that is easy to build yet offers surprisingly good performance in a compact size. Best of all, it uses commonly available components and materials.

Radio Foxtrot Denmark Priority listing - RFD dx club based in denmark

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

CN2DX Morocco - Expedition on Morocco from CN2DX, all activity

Russian Oblasts and prefixes - Russian callsign prefix series: RAA-RZZ, UAA-UIZ, includs Amateur callsign system in Russia

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

IW6MKI Uba I6YOT Mimma - A surf between radio history, home made and the sea.

Everything RF - everything RF is a web portal for RF & Microwave Engineers providing News, Design Articles, Information on new products and a component search engine which helps you find the RF & Microwave Components that are right for you.

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

Aceco - Frequency counters, bug finder, RF testers, distributed by WiMo Antennen

Servo RF Products - Direction finding receivers and finder products

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

G8SLB SSTV Packet modems - SSTV and Packet Radio interfaces for PC and Amiga computers.

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

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

YLE Radio Finland - Website of YLE radio finland, scandinavia, europe.

Scan505 - It is a simple freeware scanner program for the Kachina DSP505. The software does NOT control the radio thru the interface port - it works in conjuction with the Kachina control software using the file interface

BuTel Software - Software Information PC Interfaces for the scanning radio hobbyist & professional radio control applications

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

7 MHz SSB Transceiver  ^pop - Circuit diagram and discription of 7 MHz Ham Radio SSB Transceiver. Transceiver using two MC1496, 4.43 MHz Ladder filter, LM386, LM324 and IRF840 in final.

Ham Radio Circuits  ^pop - Circuits of SSB Transceiver, AM DSB Transmitter, Antennas, BFO, VFO, 807, FM Mike, Crystal filter and more.

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

HSCW transmit interface box - Versatile transmit interface circuit

PTT and Sound Card Interface - PTT and soundcard interface schematic by ON6MU

Interface for MS_DSP - Minimal interface circuits for receiver and transmitter audio, also for PSK31