28v power supply

Online Antenna Analysis and Design Software - Free online software to calculate wire antenna power patterns, directivity, input impedance using method of moments.

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

VSWR Reactive Power - Many antennas and antenna designers neglect the true cause of loss. The major problem using short antennas is the reactance, not the length

GB3JB 2m Repeater - Willoughby Hedge - The Green Repeater Powered by Wind and Solar Energy

PVPower.com Solar Panels - PV Solar Panels, Photovoltaic Panels, Solar Power

5W SWR Meters - HF VHF UHF Digital SWR & Power meter manufacturer based in China

Baofeng Radio - Fujian Nan'an Baofeng Electronics Co Ltd. specializes in the research, manufacturing, and marketing of communication products including amateur radio Ham Radio VHF UHF handheld transceivers.

GQRP Club - A non profit organisation run entirely by volunteers to promote Low Power Radio.

Tracking Amateur Radio Satellites - N8VI\'s powerpoint on satellite keplerian elements.

Amateur Radio in Space - The ARRL powerpoint on satellite Operations by WB8IMY

Home Power Magazine - Independently published since 1987, home power magazine and homepower.com are resources dedicated to small-scale renewable energy and sustainable living technologies.

eham.net TL-922A Reviews - Reviews of the Kenwood TL-922A Power amplifier

TL-922 Modifications by VK2FC - Collection of modifications to the Kenwood TL-922 ham radio power amplifier by VK2FC

Kenwood TL-922 by LA4WAA - Review and picture of the Kenwood tl922A power amplifier

Restoring A Drake TR-7 To Full Output Power - By Floyd Sense K8AC

Kenwood TS-480 Notes - N0RQ's brief notes on the Kenwood TS-480

IRTTY2 - IRTTY2 is an HF Ham Radio modem for RTTY (170 hz, 45 baudot) mode. Easy to use but powerful, with waterfall and Macros.

SDR-RADIO.com - SDR-RADIO.com is a Windows console for SDR receivers and transceivers. Designed for the commercial, amateur radio and short-wave listener communities, the console provides a powerful interface for all SDR users. Many SDR owners have made their radios available over the internet. Just look at the Web Servers page for a list of the radios you can use. You do not need a licence to use this sodftware with RFSPACE, FUNcube Dongles, Soundcard (SoftRock) and low-end SDRs.

MorseDec - MorseDec decodes and encodes Morse with a range of 5 to 50 wpm. It includes: auto-tracking for wpm speed, macros, spectrum analyzer. Easy to use but powerful.

Low Power LF Amplifier - ON6MU Low Power amplifier

Power Supply for Floating Pb Batteries - An easy-to-build power supply for floating pb batteries

Installing Anderson Power Poles - Installing Anderson Power Poles by Dave Schier K1UHF

Non-relay instant RF Switching - Coax lines to do the RF switching. The advantages are instant switching, no power wasting DC control circuits.

0-20V 5A adjustable power supply - This project describe building an adjustable power supply, capable of delivering 0-20V output at 5A.

RF Safety Compliance Calculator  ^updated - This program is intended for far-field calculations, Calculate Estimated Power Density based on several factors.