Lowpower Portable Packet Terminal

By Steven Avritch, WB1EOB

Fully featured and compact. A portable terminal you can build with a handful of components.

THE AMTOR MAILBOX STANDARD: A PROGRESS-9

By Peter Martinez, G3PLX

This report describes the progress and future expansion of the author's "AMTOR Mailbox Standard" project which first appeared in the February 1990 issue of QEX.

MICROSAT BI$MODULATOR: INTERFACES WITH ANY VHF TNC------10

By John C. Reed, W6IOJ

Transform normal VHF AFSK output from any unmodified TNC into the Bi$ format. The assembly is relatively simple, and all parts can be purchased from a single supplier.

HF FREQUENCY SYNTHESIZER.. .EASIER THAN EVER — 14

By Pierre Boillat, HB9AIS

Translated from the January 1990 issue of old man, the author describes an easy-to-build HF synthesizer using off-the-self components.

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