73 Amateur Radio Today – June 1985

73 Amateur Radio Today – June 1985

Issue Contents:

Tune In the TU-1000

– Has your RTW budget hit bottom? Then dust off that soldering iron-k9EUI’s no-nonsense terminal unit gives store-bought performance at a build-it-yourself price…… K9EUI 14

Secrets of Telehamming

– When the bands are dead try trading your transmitter for a telephone. Operators are standing by …… K9EI 24

CoCo’s Counter

– Use this dirt-cheap method to tune up your AFSK generator …… KG4Q 26

Is Ham Radio Baking Us?

– What damage occurs when human bodies are subjected to electromagnetic fields is not fully understood. Here an expert in biostatistics examines the problem from an amateur’s perspective-and offers some practical preventative suggestions …… VE3KSP 28

AFSK And Ye Shall Transceive

– A sine from heaven is what you’ll get when you build the AFSK-1020 …… K9EUI 32

Through the Looking Glass

– If you could peek at a RTW signal through magic audio glasses what would you see? You’ll find out with KN4L’s Apple opus. a program that whispers. “Run me” …… KN4L 34

Perfection Plus

– It’s not often a prize-winning package can be improved. Here’s a new look for a popular RTTY tuner …… W1PDI 36

Speak-No-evil RTTY

– This tiny routine is all you need to transform your Heath H-8 into a RTTY receiving demon! …… WA6NHC 40

On the Flip Side

– Here’s how to add reverse shift to your Kantronics Interface …… K1QPS 42

Quash QRM

– Add a “RTTY Narrow” position to your TS-520’s mode switch-you’ll never copy hits again! …… KA4MTO 44

The D-day Demodulator

– When the CV-89A joins forces with your micro. you’ll take the RTTY bands by storm! …… WB5LLM 46

Slick VIC Trick

– Here’s the cheapest way we know of to add a printer to your VIC-20. First find a Model 33 …… KW9L 50

QSK for Your Vintage Vfo

– All it takes is an hour …… KA3GCQ 54

73 Amateur Radio Today – June 1985

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