transmission line calcul

N. American Data Communications Museum - Telephony technology from telegraph to digital transmission

Beacon Transmission Schedule - This table gives the minute and second within each hour of the start of the first transmission of each of beacon on each frequency

Mongolia DX Association - Mongolian DX club with a lot of dx info and an online DX newsletter

VP8CRB - On-Line VP8CRB DXpedition Log

E30GA Eritrea - NFDXA On-Line Eritrea DXpedition Log

XR0YG Online-Log - XR0YG Log On-line Easter Island 2013

DX & IOTA News Bulletin - Subscribe now to get CB DX & IOTA News bulletin every 2nd week for free.

Amateur Radio RF Safety Calculator - This is a main beam power density estimation program intended for use as part of a routine evaluation of RF safety compliance with FCC regulations.

Grey Line Map - Earth view, with satellite data provided by The Living Earth.

Grey Map - Gray line map in black and white

PA3ANG Online Receivers - Control an ICOM PCR-100 and listen to the audio stream. This web controlled receiver si based in the Netherlands by PA3ANG and offer 10kHz - 1300MHz in AM, FM, FMW

Angle linear  ^pop - Linear Radio Frequency (RF) products and peripherals for communications

Texas Towers - Ham radio products, with on-line catalog and prices

All Electronics Corp. - Surplus and electronics parts. On-line catalog available.

Pryme - Full line of VHF/UHF handheld and and mobile transceivers and accessories

KBT DC Supplies - Linear Regulated DC Power Supplies

Morse Code Teaching Machine - morse code machine to learn cw transmission

TC CB Linears & Amps  ^pop - Sale of new CB Radio Linears Amps Modulators and more large price list on site.

Universal Radio  ^pop - Online Catalog. All about Radio comms, HF VHF Scanner CB radios, antennas and accessories

DOS programs by g4fgq - Small collection of DOS antenna design and RF calculations programs

W9DMK Software - Various radio related software, including some antenna analysis, and impedance calculators.

CQRLOG - Advanced ham radio Linux logger based on Firebird database. Provides radio control based on hamlib libraries, DX cluster connection, QRZ callbook, a grayliner, ON6DP QSL manager database support and a most accurate country resolution algorithm based on country tables developed by OK1RR. CQRLOG is strongly focused on easy operation and maintenance.

Morse Academy - Online documentation and overview about Morse Academy, shareware cw learning software

BTL Blaster TeLetype - High performance RTTY reception and transmission software, need a Sound Blaster compatible sound card.

Resistor values by color - Calculate Resistor Values from Color Codes