qrp receiver

QPR and portable antennas articles - This is a collection of articles, generally from QRP-L, about QRP operations and portable antennas

PAC-12 Antenna - mobile multiband  ^pop - Here’s an award-winning, easy-to-homebrew, multi-band portable vertical antenna designed by long-time antenna aficionado James Bennett, KA5DVS. He’s documented the design and construction plans for a portable antenna that can be built with relatively ordinary components

Antenna tips for the beginner - Some rules of thumb for beginners, with a QRP approach, by James R. Duffey KK6MC/5

NorCal Doublet Antenna - A simple antenna that can be erected very fast, only need one center support, and do not take up much storage room. Works from 40 to 10 meters band

Crappie Antenna - A NorCal Project A Crappie, not crappy, portable antenna

SoftRock-40 - The SoftRock-40 is a small, low-cost, good-performing "software defined radio" receiver that plugs into a computer USB port and delivers I-Q audio signals to the computer's sound card. It was designed by Tony Parks, KB9YIG and Bill Tracey, KD5TFD as an "SDR sampler project" for hams everywhere to easily try out software defined radio.

What is QRP - To those new to the hobby of Amateur Radio, hearing the term QRP often raises questions: What is QRP? Why do some hams choose to operate QRP? How can I operate QRP? These are good questions, and all are worth asking. This article will attempt to answer these questions. by William Eric McFadden

QRP Station in a Bag - QRP Station in a Bag is a complete QRP station in an old laptop PC carrying case (photo). It is a true "Work in Progress" in that wd8rif is constantly changing the contents of the bag as learn what works and what doesn't.

30m QRSS Receiver - Article on a QRSS receiver for 30 meters band

A low power 3.5MHz ARDF transmitter - This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.

ARDF80 Receiver - Documentation to build your onw 80m ARDF receiver

HRX80 80 meters receivers for APRS - 80-meter peilontvanger / receiver includes printed circuit sample and list of components

W8WWV Icom 706MKIIG simple accessories - Acc1 Breakout Box, Fused Power Cable with Accessory Tap, Microphone Breakout Box, CI-V Interface, Using the Auto Sound System for Receiver Audio

Mods fro Yaesu FT-1000 (FT 1000 FT1000) - ham.dmz.ro FT1000 pages

FT-817 Accessories - Low (or zero) Cost Accessories for the FT-817 Portable QRP MF/HF/VHF/UHF Transceiver

K8ZT's FT 817 resources - Ham radio resources about qrp, dx, logging, contesting, includes lots of links to FT817 resources on the web

N2APB Yaesu FT-817 review - Yaesu's FT817 and Super Antennas MP-1 review by George Heron, N2APB

Køemt's FT-817 QRP portable station - Transporting Yaesu FT-817 along with antennas and other accessories.

Digital Radio DCM - Programmable Digital Radio Receivers

FhG Software Radio - The Fraunhofer Software Radio is a first-class DRM reception system which provides audio and multimedia data content

Build a logging frequency counter - Pictures, photos, source code and plans to build a logging frequency counter

The manhatten style nb6m 10 - An Homebrew 10 Meter transceiver

Tuna Tin - A resurrection of some homebrew projects from our vintage years and the NorCal-sponsored project series in tribute to Doug DeMaw, W1FB

BPL FAQs - Frequently asked questions about broadband over powerline (BPL PLT)

Rainbow Antenna Analyzer - A small and inexpensive measurement device designed to determine antenna performance across the amateur bands through use of automatically collected SWR readings