XPost: rec.radio.amateur.equipment, rec.radio.info
The DXZone.com Amateur Radio Internet Guide
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AGCW-DL QRP Contest
Posted:
https://www.dxzone.com/dx34731/agcw-dl-qrp-contest.html
DX Resources/Contest
The AGCW-DL invites all radio amateurs to participate in the annual QRP CONTEST. Annually on the second Saturday in March from 1400 to 2000 UTC.
80-10 meters bands except WARC
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BITX QRP RTX
Posted:
https://www.dxzone.com/dx34727/bitx-qrp-rtx.html
Technical Reference/HF Radios
An easy to build 6 watts SSB transceiver for 14MHz. BITX is an easily
assembled transceiver for the beginner with very clean performance. Using ordinary electronic components and improvising where specific components
like toroids are not available, It has a minimum number of coils to be
wound.
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A Simple Dual-band Transceiver
Posted:
https://www.dxzone.com/dx34728/a-simple-dual-band-transceiver.html
Technical Reference/HF Radios
This a well performing, simple two band transceiver. The transceiver design
is inspired by the S7C superhet. A dual-band transceiver with a crisp
receiver and a clean SSB signal
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Specan Spectrum analyzer
Posted:
https://www.dxzone.com/dx34729/specan-spectrum-analyzer.html
Technical Reference/Spectrum Analyzers
The Specan is actually a very simple but robustly built receiver. it is, in essence, a double conversion superhet receiver with 112 Mhz and 12 Mhz Intermediate frequencies. The first mixer uses an Si570 as the local oscillator. The Ardiuno that controls the Specan is a very flexible microcontroller board that you can program in simple C language
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Two Tone Generator
Posted:
https://www.dxzone.com/dx34730/two-tone-generator.html
Technical Reference/Test Equipment/Signal Generator
A two tone generator is an essential test gear made with just four
transistors that helps you evaluate your amplifiers, mixers, receivers for distortion. Distortion makes all the difference between a pleasant receiver
and a horrible sounding one, between a clean transmitter and bad,
splattering one on air.
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