477mhz uhf 11element pla

VK2ABQ Wire Beams - The VK2ABQ wire beam is described in Les Moxon's HF Antennas for all Locations which also contains the original references, but they are rather difficult to find. The VK2ABQ antenna is a planar wire beam that can be constructed from a single hub and four spreaders.

Dipole/Yagi Antenna - DX dual dipoles by nb6z for 20 and 15 meters

LA6NCA Loop antenna - Car mount magnetic loop antenna plans from 3.5 MHz to 7.5 MHz, LA6NCA, Larvik, Norway

County Hunter Net Procedures - The main purpose of the county hunter's net is to facilitate the operations of those hams seeking to work all counties in the United State. It is also a useful place for CW emergency communications as there is almost always someone monitoring the frequencies.

East Tennessee DX Association - A club dedicated to DXing (HF as well as VHF/UHF) and contesting.

QRP LABS - The QRPLABS series of single band QRP CW tranceiver kits are high performance CW tranceivers with easy operating features, small size and light weight.

Ham-Shack.com : Packet Radio Explained - Packet radio explained, a brief introduction to packet radio operating mode

G0ISW VHF/UHF DX - Ultimate VHF/UHF DX resource site

Dominion Radio Astrophysical Observatory - operates the seven-antenna Synthesis Telescope (ST), the 26-meter Telescope, and the 10-cm Solar Flux Monitor. It is a member of the Canadian Galactic Plane Survey , a project to map 60 degrees of the Galactic plane at numerous wavelengths with a uniform sensitivity.

WWV -- SEC's Geophysical Alert Message - WWv explained. Document explaining the Geophysical Alert Message file format available on the web, and the SEC Geophysical Alert description

F5LEN Solar forecast - Display solar activity forecast for next 27 days, display A-index, Sunspot Numbers and Flux forecast

Yaesu FT-817 - Yaesu FT-817 Portable QRP MF/HF/VHF/UHF Transceiver, an assortment of technical information

Put Your Scanner Online - how to - This tutorial explain how to put your radio feed streaming on the internet using MS windows media encoder.

Azimuth - The AZIMUTH program plots a world map in either azimuth (beam heading) or Mercator projections. If you specify your home location in latitude and longitude, the azimuth projection is centred on your location. The Azimuth map program can display Maidenhead grids - this is useful for 6m, 2m, and UHF DX communication display. Various features of the map are: Azimuth or Mercator projections , Maidenhead grid display, Simple map zooming, Print maps with adequate resolution up to one meter sized map

AZMap - Azimuthal maps generator - AZMap is a freeware Windows program for the Windows PC which will generate, display, and print an Azimuthal-Equidistance (A-E) map of the world, centered at any point on the surface of the earth (except very near the poles). The A-E map is also known as a Great Circle map since straight lines from the center point to any other point always fall along a great circle path and represent the shortest distance between the center and that point

Palm Globe - A World Globe for Palm OS - Displays one hemisphere of the earth from any location. Can also display the greyline, and measure the distance between two points on the globe. It does not do a great circle projection.

QSO Diary - Freeware logging programme for the Palm Platform.

MiniLog Beta - MiniLog is a very basic electronic amateur radio contact log from palm platform. It is intended for small-scale use, such as back-packing and emergency setups.

ptelnet - ptelnet is a powerful communication software for the Palm Computing platform, By using the built-in TCP/IP stack (telnet mode), it acts as a Telnet Client. By accessing the serial (RS232 or IR) port directly (serial mode), it acts as a standard Terminal Emulator. Freeware

Defpom's CB Radio Simulator - It is a application which can be used for troubleshooting CB radio faults, by giving a graphical display of the normal operating frequencies generated by various parts of the CB radios circuits, it can help you identify if a frequency is incorrect or even missing. Another good use for this software is simulating possible frequency expansions, as it allows you to choose any frequency that the PLL is capable of generating, so you can see what the radio will allow you to get !

Introduction to spectrum analyzer - Explains the fundamentals of swept-tuned, super heterodyne spectrum analyzers and discusses the latest advances.

VHF UHF preamp - ON6MU project for a vhf uhf preamplifier

Low noise preamplifiers  ^pop - Lot of projects of preamplifies from HF to VHF and UHF by yu1aw

TVI filters - These filters are in use by hundreds of VHF weak signal operators and have been proven to be an effective solution for fundamental overload problems.

6m High Pass TVI filter - Are you suffering from TVI? Then why not try this filter for size. It is a three-stage high-pass filter that blocks low-frequency 50MHz signals while letting through UHF TV.