QEX

Memex Research Institute, Tetherless Access, Ltd and special-interest user groups. Among the latter is the City of San Diego Public Library, which is using packet radio for a 1.54-Mbit s link among the central and branch libraries and San Diego State University where the public library subnetwork gateways to the Internet. The Council on Library Resources and Apple Computer, Inc are the sponsors of the San Diego Packet Radio Project. One project objective was to prove that FCC Part 15.247 rules...

Gateway

Development of California State Packet Radio Network continues MIR SAREX news DOVE telemetry studies in classrooms modifying commerical radios for speed station automation improved by new PB and PG the low down on AMSAT bulletin distribution everything you always wanted to know about satellite frequencies ROSE directory in the works do you receive UoSAT-OSCAR-11 bulletins Also, survey for new packet-radio satellite. On the cover Lawn sheep and other animals are now being joined by lawn radios,...

Satellite Sleuthing

This avocation has been raised to the level of high artform by Geoff Perry and others of the legendary Kettering Group in England, and the techniques discussed here should certainly be attributed to them (Davidoff, 1990,1412 to 14-17). The key to determining the orbital characteristics of an unknown satellite is to observe Doppler-induced changes in its apparent frequency, and to graph them over time. If we can accurately observe Time of Closest Approach (TCA), along with Acquisition of Signal...

Bmkmulty

-mode software by G4BMK for your IBM-PC or compatible. Advanced AMTOR algorithm syncs extremely rapidly. Automatic selection of MODE-L, FEC orARQ-QSO. Unique multi-sampling RTTY algorithm. Works with any terminal unit such as CP-1, ST- 5. ST- 6, ST- 6000. etc. Detailed literature upon request. Matching T.U. available. AMTOR RTTY CW Audio Spectrum Analyzer 95. Extended version with HF WEFAX and SSTV reception 125. Visa Mastercard Amateur callsign required with order Authorized U.S. Distributor...

Doveoscar

145.812 MHz PSK, CW, RTTY 145.985 MHz PSK, CW, RTTY 435.423-435.573 MHz SSB, CW 145.825-145.975 MHz SSB, CW, inverting 435.651 MHz PSK, RTTY 435.677 MHz PSK, RTTY 1269.351-1269.641 MHz SSB, CW 435.715-436.005 MHz SSB, CW, inverting 144.423-144.473 MHz SSB, CW 435.940-435.990 MHz SSB, CW, inverting 2400.325 MHz PSK, RTTY 2400.664 MHz PSK, RTTY 435.603-435.639 MHz SSB, CW, FM 2400.711-2400.747 MHz SSB, CW, FM 1269.710 MHz inoperative 435.677 MHz inoperative 145.975 MHz FSK FM 435.070 MHz FSK FM...