QZX
Publisher: QZX
QZX was a newsletter for people with a combined interest in amateur radio and the SinclairโTimex computers. Hams would have regular “meetings” on-air. For example, one group met Wednesday nights at 10 p.m. EST on the 20 meter band, at about 14.345 MHz.
Peak publication of QZX was 300 copies per issue in the early 1980s. By 1987, circulation was at 100 copies per issue.
QZX was published by Alex Burr.
Articles
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(1000) 232 = 2050TS 2050 Hardware project Converting the TS 2050 to work as a RTTY modem.
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A Simple Morse Decoder for the QLQL Type-in program Program to decode morse off the network port.
- A Z80 machine language program to use the ZX81 as an audio frequency counterZX81 TS 1000 Type-in program
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Bits and BytesTS 1000 TS 2068 QL Type-in program Resetting the joystick port on the TS 2068 with a SOUND command. Machine language routine for TS 1000 to clear just the bottom of the screen. Programming hints for the 1000 and QL.
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Bits and BytesTS 2068 QL Differences in pull-up resistors between Z80 and Z80A/Z80B. Spectrum software may run on 2068. Bug in 2068 gives invalid value for INT(-65536). Monitor tips for QL.
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Butterworth Filter DesignTS 1000 Type-in program This program for the Timex-Sinclair 1000 computer was written for completely automated design of Butterworth low-pass, high-pass, band-pass or band-stop filters. Modern solid-state transmitters are more prone to harmonic and parasitic frequency radiation, and therefore it is desirable for the radio amateur to have access to modern filter design in order to comply with present…
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Phased Vertical AntennasTS 1000 Type-in program A Sinclair BASIC program to print radiation pattern plots for phased vertical antenna arrays.
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Publisher's NotesQuantum Computing going out of business; American QLs being sold in England.
- Publisher's Notes
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QL Antenna ProgramQL Type-in program Calculates antenna size for specific frequencies.
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QZX FriendsNotes about renewals. Bill Jones is starting a T/S 2068 magazine.
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QZX FriendsTS 2068 User gets 2068 working on packet radio.
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Telecommunications on the QLQL Type-in program Short program to send CTRL-C, discussion of British ham radio software.
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The Future of QZXPostal rates going up, subscribers decreasing.
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The T/S 1000 on PacketTS 1000 Discusses converting the TS 2050 modem to an RS-242 port for use with ZTX80 terminal program (from Fred Nachbaur) to do packet radio.