rf choke location

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

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

ARRL: US frequencies allocation - Transmitter power limits and frequencies allocation by band

K¤ARF Keeping Amateur Radio Fun - Keeping the fun in amateur radio with portable operating events and some contesting. Located in central Minnesota, U.S.A.

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.

Scanner feed tutorial - This tutorial is designed to help the average person get his scanner feed on the net pdf file

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

Mutek - Transverters, amplifiers and low noise preamplifiers

District Map of Spain - Call sign allocations in spain

RTTY.com - RTTY.COM has been established to focus on the many aspects of Amateur Radio Teletype (RTTY) and to present to the dedicated RTTYer, and to the curious, a location wherein one can find information relating to RTTY and BAUDOT communications.

Repeaters in Ecuador - Frequency, location and coverage of repeaters in Ecuador.

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

US Airphone Frequencies - Airphone Frequencies & City Allocations

W6ELProp - Predicts ionospheric (sky-wave) propagation between any two locations on the earth on frequencies between 3 and 30 MHz

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

Sun Clock - shows time zones around the world a well as the time at locations of your choice.

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.

HSCW transmit interface box - Versatile transmit interface circuit

Build your hamcomm interface - This is the small easy to build interface that will allow you to receive most all the digital modes on you shortwave radio.

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