national speaker

The Gain of the Axial-Mode Helix Antenna - by Dr. D.T. Emerson, National Radio Astronomy Observatory (NRAO++). Antenna Compendium Volume 4, pp 64-68, 1995, published by the ARRL.

BRASIL-DX International - International Brazilian DX Group

SIERRA PAPA, International Dx & Packet Group - International Organization working for a complete 11 mt. band, Radio Foundation G. Marconi's Memory

International Communication Friends - Official website of the ICF group

November Echo International D.X. Group. - 11 metres d.x. group northeast england.

SIERRA PAPA - International Dx & Packet Group - We are an International Organization working for a complete 11 mt. band - Radio Foundation G. Marconi 's Memory

NCDXF/IARU International Beacon Network - The NCDXF, in cooperation with the IARU, constructed and operates a worldwide network of high-frequency radio beacons.

Omiss - OM International sideband society incorporated nets 75M, 40M, and 20M Nets begin one hour earlier during Daylight Savings Time

The National Traffic System - ARRL National Traffic System for routing formal written message traffic

National International Doublers Net - 7.278.6 MHz USA Canada and Mexico

IARC 4U1ITU - International Amateur Radio Club at ITU

FRR - Romanian Amateur Radio Federation - Federatia RomÈna de Radioamatorism (Romanian Amateur Radio Federation)- The national non-governmental hamradio association in Romania

CHICAGO FM CLUB, Inc. - RADIO EXPO, a nationally-recognized radio exposition, is sponsored by CFMC. This hamfest offers commercial exhibits, forums and a large flea market.

ACOM  ^pop - ACOM international, manufacturer of HF power amplifiers, HF Antennas, Antenna tuners, Switches and Crankup masts

INRAD International Radio - Supplier of custom designed, high performance quartz crystal filters for communications receivers and transceivers, for Yaesu Icom Kenwood and Collins radios

RMS international - RMS International, italian distributor of Alcava batteries and power supply, since 1975 manufacture power amplifiers, watt meters, antenna tuners, TVI filters and other accessories for hams and cb radio

PCE Int. - PCE International Inc, towers and accessories

Radio Alphabet - Listen to phonetics recommended by the International Telecommunication Union, or ITU.

Australian RTTY Society - Australian National Amateur Radio Teleprinter Society (ANARTS)

NCDXF/IARU International Beacon Network - The NCDXF, in cooperation with the IARU, maintains a network of beacon stations which operate sequentially on five bands.

Sunspot answer book - Mr Sunspot's Answer Book National Solar Observatory Sacramento.

National Weather Service - Some little known facts about the NOAA Weather Radio system

Electronic Goldmine - Electronic components dealer, semiconductors, switches, leds, motors, solar energy, ferrites, toroids, capacitors, batteries, jacks and plugs, microphones, meters, power supplies, speakers, transformers, wire and more

HF Beacon tracker - This Windows program will identify the 18 worldwide NCDXF/IARU International Beacon Stations and display each, as they become active n just 3 minutes, you will know if a band is really open

Speaker Design - Java applet to design speakers