indoor coverage

Distributed Antenna System DAS - Distributed Antenna Systems technology used for gaining better coverage and using a lower power.

N5ESE\'s Notebook Antenna - A Low -Power Indoor Portable HF Antenna by Monty Northrup, N5ESE

144 MHz Halo Antenna - This halo antenna was built to have an omnidirectional coverage while working in VHF contests.

Homebrew traps - Traps can be one way round multiband coverage without the need of an atu. Learn how to homebrew your own traps

G4FON Magnetic Loop Antenna - A simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres, but by changing the overall length of the wire coverage of other bands is feasible

2 Meter Indoor Slim Jim Antenna - 2 Meter Indoor Slim Jim Antennas for Cyclone Season and Other Uses by VK4MDX

Stealth Antennas: Indoor antennas - 8Mb pdf file containing a presentation made to the KC DX Club on stealth antennas. In search of maximal performance indoor antennas by AC0C Jeff Blaine

88' Zig Zag Double Extended Zepp - A Double Zepp indoor antenna based on Cebik's reccomendations and design.

An indoor HF stealth antenna - A wire loop antenna around a bedroom wall

An indoor VHF stealth antenna - VHF Delta loop antenna

CARLA Repeater Network - C.A.R.L.A. is a growing network of repeaters providing coverage across Northern & Central California and Western Nevada. It is intended to be used as a reliable communications resource during significant local, regional and wide area incidents, and is open to all licensed amateur radio operators

Suburban Amateur Radio Repeater - Suburban amateur radio repeater is a wider coverage machine with six receiver sites in the chicago metropolitan area.

Joplin Annual Hamfest Priority listing - Plan a trip to the Ozarks and join all your radio buddies at one of the largest hamfests in Missouri. Over 20,000 sq-ft A/C indoors with over 200 flea market tables.

K2JJI Tryon Amateur Radio Club - Listen to the K2JJI repeater (146.70- PL 100.00 Hz) located on Fulton Co. NY. Coverage of grids near and around FN23/FN22.

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.

PM-SDR - A new SDR-receiver from the italian SDR developers community. Low-cost, DDS-less Software Defined Radio full coverage receiver for all HF bands, used with powerful software on the PC for multi-mode operation

k7ICU Tucson AZ Repeater - The K7ICU repeater system is situated about 500' above metro Tucson, at the base of the Catalina Mountains. It is an open system providing coverage to the greater Tucson area.

IC-7000 Expand TX - MARS CAP Modification to extend transmit frequency coveragefor the IC-7000

Modifications for the Kenwood TS-50 - Collection of TS-50 mods, LCD display dark, TS50<-->AT50 communication, TS-50 Power Mod for QRP, TX Coverage mod TS-50, CAT control for TS-50S

Yaesu 857 and 897 Extending frequency coverage - How to extend frequency coverage for yeasu FT 857 and 897 in italian by HB9TQF

Cloud RF for Android - SPLAT! VHF-UHF planning on Android

Radio Works - RadioWORKS is a tool for calculating various items related to radio waves and radio wave propagation. Get detailed information about a frequency, such as the free-space wavelength, band classification, propagation methods, common transmitter configurations, etc. Calculate antenna lengths or frequencies. View a 3D coverage map by providing a latitude / longitude coordinate and transmitter height.

75 meter AM Transceiver - Frequency coverage: 3.75 MHz to 4.00 MH transceiver for 75 MHz band

Circuit Improvements for the TS-440S - Some improvements for the Kenwood TS-440S, including distortion level in SSB in transmitted signals, Lack of crispness in the RX audio and Limited transmit frequency coverage.

UHF on a VHF Rig - This circuit enables fair copy of strong 444 MHz signals, off a local repeater, using a 2m rig and a 1/4λ 70 cm indoor ground plane antenna.