cat pc schematic

Call Sign Prefix Allocations - Table of allocation of international Call Sign series

Siskiyou County Amateur Radio Association - SCARA is located in Siskiyou County, CA. Features information on club events, meetings, and membership.

F6CRP Denis Priority listing - Site devoted to weak signal traffic SSB/CW V/UHF meteor Scatter,tropo, aurora, fai, ES homebrew

Denver Amateur Radio Supply - A full service dealer of new and used equipment located in Stevens, PA Lancaster County.

WebSDR in Louisiana USA - WebSDR Receiver on 10 meter by W5ZA located in Shreveport, Louisiana USA

Alpha Delta - Alpha Delta quality accessories for commercial and amateur radio communications

Broadcast microwave services - Designs and manufactures a comprehensive line of microwave communications equipment for television broadcast, video, telemetry, and electronic surveillance applications.

Society of Amateur Radio Astronomers - SARA is a dedicated group of people that formed an international society to learn, trade technical information and do their own observations of the radio sky

National Weather Service Marine Forecasts - Amateur radio, commonly referred to as "Ham" radio, is popular among the yachting and small boat community as a means of providing communications and receiving weather information.

The Morse Telegraph Club - International non-profit organization dedicated to the perpetuation of the knowledge and traditions of telegraphy and American Morse Code.

S. Oregon Amateur Packet Radio Association - SOAPRA promotes packet radio communications in the Southern Oregon and Northern California region

ARRL web: EME and Weak Signals - Moon bounce EME, meteor scatter and weak signal operations, introduction by ARRL.

QEX - "QEX is the ARRL ""Forum for communications experimenters."" Published bimonthly, features technical articles, columns, and other items"

Australian Radio Frequency Allocations  ^pop - Large aurtralian radio frequency charts collection

I.L. Elettronica srl - Import-export telecommunication equipment Cushcraft Antenna Italian dealer, Kenwood Yaesu Icom Dealer

Ham Radio Outlet  ^pop - A full line dealer with 12 locations nationwide.

Radio Europe - Jingle and infos at 7295 7306 USB tx from italy

PolarPlot - Freeware antenna software that lets you see what the polar diagram of your rotatable beam actually looks like where it is operating. With PolarPlot you can measure the polar diagram of the antenna and check for abnormalities - compare plots taken before and after changes to the design or location - check the -3dB beamwidth - look at the front to back ratio - see the size and position of the sidelobes.

Freeware for Amateur Radio Priority listing - Programs for hams written by Alex Shovkoplyas

Spectran - Program designed to do spectral analysis and real-time audio filtering on reception of audio signals for EME, VLF, SETI applications. Offer support for MTHELL, QRSS, DFCW, NDB, WSJT by I2PHD

MixW V3  ^{updated  pop} Priority listing - PSK31, RTTY, SSTV, MFSK, MT63 Olivia Hellschreiber SSTV and other modes, Log, DXCluster, telnet access, log backup, Rotor, CAT and whatever you dream in a single program

FTBasic  ^pop - FTBasic is a CAT control program for Yaesu radios FT100, FT817, FT847, FT1000MP Mark V and FRG100

Pathfinder - A free application that searches more than 100 web-accessible sources to locate QSL information for a callsign that you enter once

FFTDSP  ^pop - FFTDSP is a PC program which can detect weak radio signals in real time. Uses the PC's soundcard and advanced signal processing techniques, extracts and displays weak signals from the receiver audio.

ICOM CI-V Interface schematic - G3VFP schematic for the ICOM CI-V interface with PTT and CW Keying