rf spectrum analyzer

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

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

Palstar - Receivers, Antenna Tuners and accessories, antenna analyzers, dummy loads, wattmeters, shortwave radio receivers, baluns, filters

Servo RF Products - Direction finding receivers and finder products

Caltech Submillimeter Observatory (CSO) - A 10.4-meter diameter, submillimeter spectrum telescope. Situated at the top of Mauna Kea, Big island, Hawaii.

FCRAO - A 15-meter diameter, submillimeter spectrum telescope. Situated near the summit of Mauna Kea, Big island, Hawaii.

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

MMANA-GAL - MM Antenna Analyzer by JE3HHT Makoto Mori based on the moment method, which was introduced in MININEC

Hoka Electronics Italia - Decoding and data analyzer software

Code332 - Multitasking data analyzer demodulator and decoder for Windows.

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

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