active antenna/cache

Active magnetic Antenna - DF9CY Active Magnetic Antenna project

Another Approach to Active Antennas - Active antenna with a frequency response that is flat from 5kHz to over 30MHz

Beacon Station MO 189.5 KHz - This site is dedicated to experimental low frequency operation in the 160 to 190 kHz spectrum. LF beacon MO is no longer active. This page is retained only for reference information.

SU8JOTA Egypt - The amateur radio station SU8JOTA will be active on HF Bands during the JOTA event 16 - 17 Oct 2010. During the weekend, SU8JOTA station will be operational from the Cairo International Scout Center.

DX Newsletter (DXNL) - The DARC DX Newsletter (aka DX-Mitteilungsblatt) is an important source of information for the active DXer. It is published on a weekly basis in German and English and keeps the readers up to date about current and planned DX activities.

SQ1BHQ blog - A blog from poland about VHF and Satellite operations, including D-Star. Many pictures and movies from this active vhf dxer

W4GBR DeKalb County Amateur Radio Club - Active for over 25 years, providing amateur radio service to Northeast Alabama

K4BFT Huntsville Amateur Radio Club - Huntsville Area Active Amateur Radio Organization

W4AP - Montgomery Amateur Radio Club - The Montgomery Amateur Radio Club is an active organization that has earned the Special Services Club designation from the ARRL.

Northern Lights Radio Society - Organization of Upper Midwest amateur radio operators who are active in weak signal (SSB/CW) work on the VHF, UHF, and Microwave bands

Macon County ARC - The Macon County ARC has been actively supporting the interest of Amateur Radio for over 30 years. In 1998, we received a 25 years of ARRL Affiliation Certificate

Tri-County Amateur Radio Club - Small, vibrant and active group of Amateur Radio Operators residing in the counties of Guilford, Randolph, and Davidson in central North Carolina.

Women On The Air - Dedicated to active YL... YL IS !

EA4FRB Melchor Varela - Interested in electronics, active in HF and 6M, mostly in digital modes and also enjoy listening and receiving from utility stations. Many interesting homebrew projects

Tecom - Tecom industries product line encompasses a wide range of highly sensitive active and passive antennas for use in airborne and ground applications, providing complete coverage of the 20 MHz to 40 GHz frequency range.

Oceania Radio Entities Map - Interactive map of Oceania radio entities with clickable links and information from Oceania Amateur Radio DX Group.

Solar Monitor - These pages contain near-realtime and archived information on active regions and solar activity

THD-7 Mods - Expanding tx range of a TH-D7A

TH-D7 Protocol Specification - This document has been produced by examining the data going into and coming out of the TH-D7 HT from Kenwood.

UT8LN QSL print - Provide quality QSL design and print by very attractive prices.

Radio Active Style - T-Shirts - Radio Active Style, LLC designs and produces high quality and innovative t-shirts for hams, amateur radio operators, and shortwave listeners.

AktivFilter - Active filter design software for windows, AktivFilter 3 for the design of active filters tuned on the opamp type.

BeaconAid-HF - Iphone app for ncdxf IARU beacon monitoring, shows the currently transmitting beacon on each band, reception charts from the active monitoring stations, and latest solar flux A and K indices

ARDF Active Attenuator Project - New ideas from old concepts, an attenuator project

Low-Pass Active Filter Designer - Javascript filter design page with introduction to low pass filters by k7mem