indoor coverage

Adding top band to inverted L - GM0ONX extends the coverage of his inverted-L antenna to 160 meters band

40-meter Rectangular Loop Antenna - A 40-meter antenna that provides good local and regional coverage during the day and good DX capability at night

Random wire Unun - Get all band coverage with a single wire and the icom 703

Indoor multiband dipole - This indoor dipole is available in two version for 20-10 meters and 40-10 meters. EZNEC data files available by HB9MTN

T2FD, The Forgotten Antenna - The terminated. tilted, folded dipole T2FD is a little known antenna that performs excellently. Compact in size compared to a half­-wave dipole the T2FD provides signal gain, wide frequency coverage, and exceptionally low noise characteristics.

A 144 MHz Halo - This halo antenna was built to have an omnidirectional coverage while working in VHF contests. The idea was to have a small but useful antenna for receiving, but it has demonstrated very capable on TX also.

The Indoor spiral dipole - An attic indoor antenna successfully implemented by N9RET by using two runs of 2-conductor wire

G0FTD's experimental INDiX antenna - This antenna is meant to be hung indoors within a window frame for those who can't get an outdoor antenna erected. Plan include dimensions for 50mhz 70Mhz and 144Mhz

Shortened antennas - Drawings of shortened antenna for indoor usage, using short pvc tubes for 2 , 20 and 40 Mhz by f1rfm

CO2KK Wire antenna for 50 Mhz - 6m (50Mhz) Long wire antenna There is another form of long wire antenna which provides uni-directional coverage and is easy to build. Description by Arnie Coro CO2KK

Mackenzie Highway Network - The Mackenzie Regional ARC currently Operates the VE6PRR (146.82- ) repeater. It's located approximately 15 Km North of Peace River. It is linked to the SARA system via Grande Prairie. We are currently in the process of expanding the coverage by adding number of repeater sites through out the area.

NI4CE West Central Florida Group, Inc - Founded in 2001 to manage and operate West Central Florida's only regional linked amateur radio repeater system. Currently, the NI4CE Repeater System operates nine repeaters from five sites with more on the way. NI4CE covers all or parts of twelve counties in West Central Florida and provides mobile coverage along the areas I-75 and the I-4 corridors.

UltraBeam Antennas - Electronically controlled HF antennas. General coverage. Top features on all ham bands. Very advanced materials and state of the art technology.

Surge Suppression Incorporated - Unequaled surge suppression for indoor/outdoor/military and custom needs.

DDS-60 Kit - A 1-60 MHz coverage VFO with built-in amplifier and variable output level from 0 to 4V p-p.

TowerWorx - Mobile and portable towers for the use in temporary cell phone coverage, military use and mobile communications for surveillance and emergencies

K6MDD Mt Diablo D-Star - Mt. Diablo D-Star System is situated on the North peak of Mt. Diablo in California's East Bay 33 miles east of San Fransisco. At 3,600' the K6MDD System has excellent coverage of most of the Bay area !

Rhode Island Amateur FM repeater service Priority listing - This website explains coverage and construction for our repeaters. Includes useful links and an insight into the Ham community in Rhode Island

IC-756 Modifications - Spectrum Scope Adjustments, ACC1 Audio Output Increase, General Coverage TX Mod

FT-847 General Coverage Mod - General Coverage TX Mods by G1IVG.

Yaesu VR-5000 Product Reviews - Review of the Yaesu VR5000 general coverage receiver

Yaesu VR-5000 Review - Strong Signals review of the yaesu VR 5000 general coverage radio receiver

SPLAT! for Windows - This free software is useful for visualizing terrain and performing Longley-Rice path loss and coverage prediction using the Irregular Terrain Model. A Windows port of the Linux-based SPLAT by John Magliacane.

General Coverage Receiver - This is a compact three transistor regenerative general coverage receiver with fixed feedback

Harmonic Converter for Spectrum Analyzers - Extending the frequency coverage of spectrum analyzers, Harmonic mixer by Matjaz Vidmar, S53MV