AMSAT

ARRL 1995 Digital Communication Conference Mark your calendar and start making plans to enjoy a little Texas hospitality and attend the year's premier event in digital communications. The 14th Annual American Radio Relay League (ARRL) Digital Communications Conference just minutes from the Dallas Ft Worth Airport The ARRL Digital Communications Conference is an international forum for radio amateurs and experts in digital communications, networking, and related technologies to meet, publish...

With Filter and Amplifier

This mixer for both transmit and receive sides of a transverter provides good performance. At Microwave Update '92 in Rochester, I presented a description of my modular building-block approach for assembling a transverter for 5760 MHz.1 I've used this transverter for 3 years, and recently NJ2L described his transverter that uses the same mixer, so perhaps it's time to describe what we've learned and add some improvements.2 The heart of any transverter system is the mixer, and there are few...

Info

3 A Simple Frequency Deviation Meter Using Time-Domain Techniques 9 A Dual Mixer for 5760 MHz with Filter and Amplifier 14 Using the Motorola DSP56002EVM for Amateur Radio DSP Projects 13 Upcoming Technical Conferences 21 Digital Communications American Radio Relay League 26, 29, Communications Specialists Inc 30 Down East Microwave Inc 29 Software 30 PacComm Cov II, Cov III PC Electronics 29 Tucson Amateur Packet Radio Corp 31 Z Domain Technologies, Inc 30

Arrl

This 17th edition of 77ie ARRL Antenna Book features a new chapter on HFYagi Arrays. Other highlights include an expanded Radio Wave Propagation chapter, including comprehensive statistical data on the range of elevation angles, to an upgraded VHF and UHF Antenna Systems chapter with K1F0 optimized Yagi designs. This new 736-page edition of The ARRL Antenna Book comes bundled with a 3 -inch IBM format disk with programs to help you design and analyze Yagi antennas, forecast propagation,...

The American Radio Relay League

The American Radio Relay League, Inc, is a noncommercial association of radio amateurs, organized for the promotion of interests in Amateur Radio communication and experimentation, for the establishment of networks to provide communications in the event of disasters or other emergencies, for the advancement of radio art and of the public welfare, for the representation of the radio amateur in legislative matters, and for the maintenance of fraternalism and a high standard of conduct. ARRL is an...

QEX

Solder on a hot plate using paste-rosin flux. Until recently, affordable MMIC devices only worked well at frequencies below 4 GHz. Some devices still had a little gain at 5760 MHz, so it was possible to make an amplifier using multiple low-gain stages.118 A new GaAs MMIC, the MGA-86576 also available from Down-East Microwave offers excellent performance to 8 GHz at a very reasonable price. I built an amplifier using one on a scrap of Teflon PC board with a...

Simple Frequency Deviation Meter Using Time Domain Techniques

No more excuses 'for packet overdeviation This easy-to-use meter will let you set it right. With the large amount of packet activity on VHF, attention has been frequently directed to the need for properly setting the frequency deviation of the associated transmitter or transceiver. This article describes a simple frequency deviation meter that provides a way to accurately measure deviation of both 2-meter and 70-cm transmitters and transceivers. It's particularly suitable for HTs. If your...

Proceedings

Proceedings of the 29th Conference of the Central States VHF Society. ISBN 0-87259-519-6. Cost i2 from ARRL. Order number 5196. SET I Range How Near Do We Hear , Dr. H. Paul Shuch, N6TX Conservative Design for 10 Watt V UHF Transverters, Bill Wageman, K5MAT A Matched Filter for EME, C. R. MacCluer, W8MQW SMIRK History, Accomplishments and Future, Pat Rose, W50ZI Amplifiers and Tubes, Russ Miller, N7ART A 23-cm Diagonal Waveguide Feed for Most Dishes, Russ Miller, N7ART Cavity Design Tips, Russ...