Correction CQ. THE RADIO AMATEUR'S JOURNAL Apr 1985 (v.41#4) pg. 116
Understanding the RS-232C communications standard.
CQ. THE RADIO AMATEUR'S JOURNAL Nov 1988 (v.44#11) pg. 32
Building flow-control mechanisms to pass ASCII files from one computer to another. Both RS-232C hardware and software wiring patterns are described.
CQ. THE RADIO AMATEUR'S JOURNAL Jan 1989 (v.45#1) pg. 98
A primer on digital signal interfaces (RS-232, RS-422, and RS-485).
CQ. THE RADIO AMATEUR'S JOURNAL Mar 1998 (v.54#3) pg. 46
Understanding digital modulation, the technique behind high speed data transfers, high-speed digital modems, and HDTV.
ELECTRONICS NOW Dec 1999 (v.70#12) pg. 38
How to link up your home to a computer center. The basics of terminals, teletypes, modems, signal transmission via telephone lines and costs involved.
ELEMENTARY ELECTRONICS Sep-Oct 1977 (v.17#5) pg. 41
Inexpensive teletype interface allows you to connect a RS232C I/O port to a 20 mA TTY. Estimated cost: $10. Limited to 110 baud.
ELEMENTARY ELECTRONICS Jan-Feb 1980 (v.20#1) pg. 35
An introduction to the RS-232 standard.
HANDS-ON ELECTRONICS Summer 1984 (v.2#1) pg. 36
Interfacing tips. Communicating with the outside world. A look at basic TTL-to-current and TTL-from-current interfaces and some specific applications.
KILOBAUD MICROCOMPUTING #14 Feb 1978 pg. 72
Experiments in software. Serial to parallel conversion programs written for an Altair 8800 allows communication with a CRT with an RS 232C serial I/O via the 3P+S I/O board.
KILOBAUD MICROCOMPUTING #17 May 1978 pg. 44
Error correcting codes, a software technique for detecting and correcting hardware errors that sometimes occur in data-transmission systems.
KILOBAUD MICROCOMPUTING #18 Jun 1978 pg. 76
Error-correcting techniques for use in data transmission or interfacing.
KILOBAUD MICROCOMPUTING #21 Sep 1978 pg. 80
Build a serial-to-parallel converter. Connect parallel devices to serial ports with this device. Will provide either TTL or RS-232 inputs/outputs. Est. cost: $35.
KILOBAUD MICROCOMPUTING #23 Nov 1978 pg. 84
Circuit will convert parallel to serial (RS-232). Est. cost: $42.
KILOBAUD MICROCOMPUTING #28 Apr 1979 pg. 62
Simple, low-cost circuit converts TTL-level signals to RS-232 and vice versa. Est. cost: $4.
KILOBAUD MICROCOMPUTING #30 Jun 1979 pg. 88
Data communication error measurement. This 8080 machine-language program checks for errors in data-transmission systems.
KILOBAUD MICROCOMPUTING #41 May 1980 pg. 52
All about ASCII. Get a fuller understanding of the ASCII character set and its use in data communications.
KILOBAUD MICROCOMPUTING #47 Nov 1980 pg. 129
Build a "Quick Fox" terminal tester. Battery powered unit sends out a continuous stream of ASCII characters for testing a terminal or printer.
KILOBAUD MICROCOMPUTING #54 Jun 1981 (v.5#6) pg. 104
Special issue on communications and microcomputers including a review of available on-line data bases and information services.
KILOBAUD MICROCOMPUTING #58 Oct 1981 (v.5#10) pg. 42+
How data travels over telephone lines.
KILOBAUD MICROCOMPUTING #58 Oct 1981 (v.5#10) pg. 46
Communications program for a North Star Horizon computer. Use it to send and receive data and communicate with remote time-share systems or other microcomputers. Written in BASIC.
KILOBAUD MICROCOMPUTING Jan 1982 (v.6#1) pg. 118
List of active electronic message systems along with their location and telephone number.
MICROCOMPUTING Jul 1982 (v.6#7) pg. 20
Program to transmit TEXT files between an Apple III and an IBM PC over a 3-wire cable at 300 baud.
MICROCOMPUTING #83 Nov 1983 (v.7#11) pg. 32
Programs to "download" BASIC programs to a Commodore-64 machine via a hardwired RS-232 port.
MICROCOMPUTING #83 Nov 1983 (v.7#11) pg. 96
Build a serial-to-parallel interface using the RCA 1802 microprocessor.
MICROCOMPUTING #84 Dec 1983 (v.7#12) pg. 102
Hardware and software modifications needed to transfer files between a Texas Instrument 99/4A and an IBM PC computer.
MICROCOMPUTING #89 May 1984 (v.8#5) pg. 82
Free BASIC programs by radio. How you can capture computer programs that are broadcast internationally and in the U.S.
MODERN ELECTRONICS [2] Jun 1986 (v.3#6) pg. 36
A radio data link for Commodore 64. R-f link eliminates parallel cable between computer and peripheral, thus extending data transmission to as far as 1000 feet away.
MODERN ELECTRONICS [2] Aug 1986 (v.3#8) pg. 30
Motorola's MC14411 programmable bit rate generator IC is described.
MODERN ELECTRONICS [2] Feb 1988 (v.5#2) pg. 70
Wireless data link. This 300-baud accessory eliminates the need for long cable runs when connecting serial peripherals to a computer. Radio Shack's "Space Patrol" walkie-talkies are converted to transmit computer data on the 49-MHz citizens band.
MODERN ELECTRONICS [2] Sep 1988 (v.5#9) pg. 18
How computers detect and correct transmission errors.
POPULAR ELECTRONICS [1] Jun 1977 (v.11#6) pg. 70
Schematic for a circuit to interface an RS-232 data output port to a 20-mA current-loop printer.
POPULAR ELECTRONICS [1] Jun 1981 (v.19#6) pg. 82
Computer connection. A look at the most popular interfacing schemes. Looks at TTL, current-loop, RS-232, and Centronics parallel.
POPULAR ELECTRONICS [2] Aug 1990 (v.7#8) pg. 64
Answers to some of the most common questions about modems and computer communications.
POPULAR ELECTRONICS [2] Jan 1991 (v.8#1) pg. 64
The cheap-link file-transfer system. Using a direct port-to-port cable and inexpensive software to transfer files between two IBM compatible PCs.
POPULAR ELECTRONICS [2] Mar 1991 (v.8#3) pg. 70
All about parallel-port signals. What it transmits, receives, and how they are related.
POPULAR ELECTRONICS [2] Jan 1992 (v.9#1) pg. 38
Troubleshooting parallel connections. Information needed to interconnect parallel devices safely and properly, even without the manuals.
POPULAR ELECTRONICS [2] Feb 1992 (v.9#2) pg. 41
Programming parallel ports. Learn how to control and monitor the parallel port on your computer so you can interface it with your own computer projects.
POPULAR ELECTRONICS [2] Feb 1993 (v.10#2) pg. 47
Programming serial ports on your computer so you can build RS-232 based projects.
POPULAR ELECTRONICS [2] Aug 1993 (v.10#8) pg. 63
RS-232 and RS-485. An introduction to the terminology and applications of two mature serial interface standards.
POPULAR HOME AUTOMATION Jul 1998 (v.3#3) pg. 52
FireWire. An introduction to the IEEE 1394 serial interface standard.
POPULAR HOME AUTOMATION Sep 1998 (v.3#4) pg. 52
Digital data transmission. How a computer communicates with peripheral devices. A review of various transmission methods, transmission rates and interface schemes.
RADIO-ELECTRONICS May 1978 (v.49#5) pg. 44
Protocol converter. Allows RS-232 asynchronous terminals or CPU's which operate in X-on/X-off (also called DC1/DC3, Control-Q/Control-S) protocol to communicate with devices that use lead control for handshaking (RTS, CTS).
RADIO-ELECTRONICS Jul 1986 (v.57#7) pg. 11 (ComputerDigest)
All about microcomputer interfacing (connecting peripheral devices). Part 1. Serial vs. parallel. Parallel transmission. Transmission rates, baud rates, etc.
RADIO-ELECTRONICS Dec 1986 (v.57#12) pg. 9 (ComputerDigest)
DTMF (dual-tone multi-frequency) encoding and decoding. How to use "Touch-Tone" techniques to speed up signal transmission.
RADIO-ELECTRONICS Dec 1986 (v.57#12) pg. 65
All about microcomputer interfacing. Part 2. RS-232. Hints for debugging serial interfaces.
RADIO-ELECTRONICS Jan 1987 (v.58#1) pg. 13 (ComputerDigest)
Simple adaptor (interface) to exchange files between an Apple IIc and an IBM PC. Est. cost: $5.
RADIO-ELECTRONICS Mar 1988 (v.59#3) pg. 79
Understanding RS-232. RS-232-C pinouts identified. Includes an RS-232 driver circuit built around the MAX232 IC and requiring only a single +5-volt supply.
RADIO-ELECTRONICS Jun 1988 (v.59#6) pg. 65
The general purpose interface bus. Using the GPIB, IEEE 488 bus, or HP Interface Bus to exchange digital data and maintain control between instrumentation devices and computers. Part 1.
RADIO-ELECTRONICS Jul 1988 (v.59#7) pg. 57
The general purpose interface bus. Part 2.
RADIO-ELECTRONICS Aug 1988 (v.59#8) pg. 53
RS-232 monitor/control system. Hardware and software of an I/O control system that interfaces to your personal computer through an RS-232 port, is modular, and has full duplex operation for both input and output. Est. cost: $50.
RADIO-ELECTRONICS Aug 1988 (v.59#8) pg. 83, 68
Correction RADIO-ELECTRONICS Sep 1988 (v.59#9) pg. 16
New and improved RS-232 serial interface standard. A comparison between RS-232-C and EIA-232-D.
RADIO-ELECTRONICS Nov 1988 (v.59#11) pg. 87
The Exar XR-4151 chip converts an applied DC voltage to a pulse output that has a repetition frequency proportional to the DC voltage. Also convert square-wave or pulse input to DC. Use in A/D and D/A conversion and data transmission.
SCIENCE & ELECTRONICS [2] Mar-Apr 1981 (v.21#2) pg. 75