thrust bearing

Adding to an Arrow Satellite Antenna - By adding a tripod for mounting, bearing indicators, and a pre-amplifier, you can create an impressive antenna system for picking up FM signals from AO-51.

A robust rotor fixing system - A robust rotor fixing system using roller bearings, easy to maintain without unmounting the antenna by F6ITS

IOTA Bearing & Distance list for your QTH - A list of all IOTA reference numbers and IOTA groups for the Islands On The Air award, personalised to your own QTH

Custom Ham Maps - The webs premier site for custom ham maps (azimuthal equidistant projection maps) and great circle bearing/distant charts for the radio amateur. Customized azimuthal equidistant projection maps and tables.

Glen Martin Engineering, Inc.  ^pop - Glen Martin manufactures aluminum and steel amateur antenna self-supporting and telescoping towers, mounts, masts, thrust bearings and accessories.

Distance and Bearing Finder - This service uses data from the US Census and a supplementary list of cities around the world to find the latitude and longitude of two places, and then calculates the distance between them. It also provides a map showing the two places, using the Xerox PARC Map Server.

QTH Locator and Calculator - Calculate bearing and distance and Locator online with this Java application.

AntennaCompass Station Bearings - Antennacompass.com will calculate the distance and bearing for Ham, TV, FM, AM, and Shortwave stations and plot it on a compass like display.

Thunt.org : transmitter hunting - Amateur radio direction finding, transmitter hunting web site from San Francisco. Triangulating a radio signal direction and plotting its bearing on a map. Hunters use doppler systems for tracking hidden transmitters anywhere in the san francisco bay area, fremont california

Transmitter hunting, in San Francisco Priority listing - Amateur radio direction finding, transmitter hunting. triangulating a radio signal direction and plotting its bearing on a map. hunters use doppler systems for tracking hidden transmitters

Beacons app for Windows - Shows which beacon is currently transmitting on the selected radio band Displays information about transmitting beacon Informs about direction and bearing from users position towards transmitting beacon

Radio Distance Software - This is a trivial program which calculates the distance and the bearing between two points. Points are either entered as geogr. data (Latitude/Longitude) or as qth-locator in the Maidenhead format (6 or 8 digits), as used in ham radio. Output is in degrees [°] for bearings, in Kilometer [km], US statute miles [mi] or nautical miles [nm] for distance

Great Circle Calculator - A javascript online calculator of bearing and distances by G4VWL

W2IOL GCGC Distance/Bearing - Freeware dos and linux command line executables to calculate grid great circle/geodesic distance, azimuth/bearing and MUF calculator by W2IOL

Qgrid - Maidenhead grid squares calculator, and bearing and distance program

iDXSpot - DX Spots announced by speech in phonetics (or plain). Connect to the worldwide DX-Cluster via the Internet easily. Calculates distance and bearing between Grid locators and sends Grid & distance. Hot buttons to see DX-Spots on specific bands. Editable Hot buttons. Easy switching between favourite DX-Clusters.

Radioman - Freeware dos VHF/UHF Logbook morse code facility, kenwood transceivers interface, moontracking, distance and bearing calculators by DF9CY but discontinued and unsupported

Where is that station - FREE Windows based utility to help find, display and log pertinent AM/BCB station info including distance and bearing from your QTH.

Ham Helper - Ham Helper is a tool that will help Ham Radio operators with many tasks. Features include UTC Time display, Callsign Country lookup, internet callsign lookup, band plans, W1AW schedule, bearing/distance calculation and more.

Ham Dashboard - Iphone App with list of nearby repeaters in the UK, along with details of input and output frequencies, a map, and a handy bearing arrow for each repeater.