Pioneer Spacecraft Tracking from Earth with Doppler Shift.

The DSP Interchange for Weaksignal Communication and SETI.

"Computers are moving ever closer to the Antenna"

With contributions from C.R. MacCluer, W8MQW.

Compiled by W6/PA0ZN

FLASH ( Ultimate Weak signal operations )

A New UHF DX record by the Stanford Radio Group.
Latest from JPL / Stanford
Expanding Radio Search Party for Mars Polar Lander.

Stanford is breaking old weaksignal record.
Another new UHF DX record by the Stanford Radio Group.


    Amateur Radio will and must transer itself from some of its present branches into fields that are unique and challenging in the future. For those of us who are only interested in communication, many possibilities are now on line such as cellular and satellite telephone, different forms of internet communication, email etc.

    The competitive activities of amateur radio such as contesting are doomed and will eventually lose their appeal. Many of us find ourselves in situations where we have to live in rental housing or own a house in a strictly regulated development or community, have to observe maximum radiation limits, and have to contend with high noise levels from signals that are generated by consumer electronic devices.

    For Radio to remain interesting to many of us, we will have to return to the BASICS such as propagation, low power (QRP), weaksignal, small and compact antennas and the like. It might be necessary to flee from the shack and do Radio out in a quiet spot - away from people - if we are fortunate enough to be able to locate such areas.


    Large racks with with mercury vapour rectifiers in the bottom, the light intensity of the bulbs in the house being modulated by the rhythm of the transmitted code, and high towers loaded with aluminum are becoming more rare and hard to efford in today's developed world, especially for younger people with limited resources.

    Some of the areas with increased activity and interest are all kinds of low power (QRP) applications, for operating as well as construction, advanced receiver design and the utilization of computing power for the enhancements of the communication process. In addition to this, computers enable better research and design for antennas. In this connection it is worth noting the increased interest of amateurs in radio astronomy, meteor scatter, satellite communication, VLF (Very Low Frequecy) and the observation of natural radio phenomena.

    The purpose of this page is to draw attention to the developments that have been in progress for at least a last decade or more. This is certainly not intended to force anything on anyone.

    Although many in the amateur radio community are resisting this development, the scientific and military defense communities have seen this years ago.

Historically, radio amateur licences were granted to enable amateurs
to participate and contribute to this development process.

DSP-10 in EME

Roger, W3SZ reviews his DSP experiences in the world of weaksignal.
A SUPERB Weaksignal Page.
WOLF, a New weaksignal protocol, by K0LR and KK7KA.
AF9Y with his MCA, the most popular Spectrum Analyser for Weaksignal and Astronomy plus weaksignal protocols.
DSP in Amateur Radio or Not?
What makes a QSO a "Real" Amateur Radio Contact?
More of this discussion...
A Future for EME? by IK5QLO
ARRL Articles on Digital Signal Processing
Digital Signal Processing Demo Applets. (JAVA)
AA7FV/G3SYS Weaksignal and Radio Astronomy Pages.
SETI League with Weaksignal detection hits.

JT44, The DSP breakthrough for small EME stations.

DSP-10 Receiver Concepts

LINRAD, New PC Based DSP Receiver Project by SM5BSZ.

General Analog DC Receiver and DSP Based Projects.

More DSP Based receiver Designs and Concepts.

Spectrum Analyses in DSP

Comet Hyakutake(C/1996 B2):Radar Detection of Nucleus and Coma.[ref. 1]

LF/VLF and other frontiers

PSK31 Section.

This section will be expanded.

LINUX and Sounblaster Related.

Texts on DSP and Transforms

DSP Products.

More General DSP Related Links.

Software of Interest to Designers.

        (1) Comet Hyakutake (C/1996 B2): Radar Detection of Nucleus and Coma.
        R.Rose,D.Kelley,M.A.Slade,and M.L.Thomas.
        Science 278, 1921-1924 (1997).

This page is under construction and we are open for suggestions.


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