477mhz uhf 11element pla

10 Meters EH Antenna  ^pop - PDF file with plans to build an eh antenna for 10 meters band, by lloyd butler VK5BR

17 Meter Coaxial Moxon Antenna - 17 m reduced size coaxial moxon rectangle, an exercise with an MFJ 259B plans by N0KHQ

20 Meters EH antenna plans - 20 M, 1 Foot antenna plan by wb5cxc, includes also two more versions of bigger eh antennas for 20 meters, contribuited by w0kph.

I4SBX EH Antennas - Three eh antenna plans for 20 40 meters bands.

50MHz J-Pole Antenna  ^pop - Need a general purpose antenna on the magic band? The J-Pole is an easy-to-build and inexpensive device that provides an omni-directional vertically polarised antenna without the need for a ground plane. In technical terms, it is an end fed vertical 1/2 wave which is fed via a 1/4 wave matching stub.

80 Meters EH Antenna plan  ^pop - Building this antenna is very easy and inexpensive, 6 Foot EH Antenna

Homebrew G5RV  ^pop - A G5RV plan for 10-160 meters, 10-40 and 10-80 meters band

Super J-Pole plans - The super J-pole is a regular J-pole antenna with a 1/2 wave element mounted above with a 1/2 wave phasing harness connecting the element to the bottom part of the J-pole. The antenna can be built for any band, but I built mine for 2 meters

J-Pole theory  ^pop - The J-Pole antenna is an omnidirectional antenna that can be used for base, mobile and field day stations. It does not need a ground plane, radials or a complicated matching system. The J-Pole can be cheaply, simply and quickly constructed using a variety of techniques, some of which are discussed in this article.

A J-Pole for 2-meters and 70-cm  ^pop - An Easy Dual-Band VHF/UHF Antenna from QST September 1994

Jpole by EA6IC - Jpole antenna plan for 144 and 435 Mhz

A Stacked 3-Element J-Pole - Plan and photos of a stacked 3 element jpole antenna

AR88 page - This model was introduced in the early 40's to replace or augment the HRO in applications demanding a more onerous duty than basic operational point-to-point communications such as intercepting coded axis radio messages during WWII.

UDY-2 Voice Keyer - The UDY-2 Voice Keyer digital voice keyer amateur radio software utility integrates many popular voice keyer features in one convenient easy to use program. Whether you're working a contest as multi op, single op, running a net, or just plain rag chewing the UDY-2 Voice Keyer has something to make hamming more fun and convenient for you.

Norfolk Fire and Rescue - Live dispatch audio from Norfolk Fire and Rescue by www.hrconnect.com

Chesapeake Police Dispatch - Live dispatch audio from Chesapeake, Va police dept by www.hrconnect.com

Newport News Police & Fire Dispatch - Live dispatch audio from Newport News, Virginia by www.hrconnect.com

Definition of frequency bands - Definition of radio frequency bands, hf vhf uhf etc.

Southern California Repeater Lists - The most up-to-date listing of VHF/UHF amateur repeater stations operating in Southern California.

G7IZU Radio Reflection Detection Page - Meteor Shower, Aurora, Sporadic-E and Solar Flares detected using Radio Signal Reflection, by Andy Smith, G7IZU. Live waterfall displays from three receivers, live Es propagation maps.

ERP Calculator Plus - ERP Calculator is an Amateur Radio software utility designed to perform a side-by-side comparison of two Ham Radio antenna systems. ERP Calculator comes pre-programmed with data files including published data for several popular brands and types of coax cable as well as several popular antenna system brands and models. ERP Calculator displays values of ERP, Antenna Power Gain, Antenna Feed point Power, Antenna System Gain in dB, Antenna Gain in dBd, SWR Attenuation in dB, SWR Power Attenuation, Coax Loss in dB, and Coax Power Loss

QuickRecord - QuickRecord is a compact application for recording and playing sound on a Microsoft Windows PC. It works on Windows 95, 98, Me, NT4, 2000, and XP. Recording and playing back directly to and from disk files, QuickRecord 2 maintains the simplicity of the standard Windows Sound Recorder applet but without the restrictions.

Electromagnetic Radiation Explained - by Jim Hawkins - WA2WHV How Radio Waves Are Born

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

Receive only processing equipment - One of our most popular products, receiving preamplifiers are used for achieving top signal band performance in competition operating, low noise longwave reception, repeater applications into the UHF region, or lab use