{"id":4210,"date":"2020-07-05T14:19:18","date_gmt":"2020-07-05T14:19:18","guid":{"rendered":"https:\/\/www.snapwhole.com\/index.php\/73-amateur-radio-today-april-1980\/"},"modified":"2023-01-17T01:05:10","modified_gmt":"2023-01-17T01:05:10","slug":"73-amateur-radio-today-april-1980","status":"publish","type":"page","link":"https:\/\/www.snapwhole.com\/index.php\/73-amateur-radio-today-april-1980\/","title":{"rendered":"73 Amateur Radio Today – April 1980"},"content":{"rendered":"\n

73 Amateur Radio Today – April 1980<\/span><\/p>\n\n\n\n

Issue Contents:<\/span><\/h3>\n\n\n\n

Sunspots… What Do They Mean?<\/h3>\n\n\n\n

– your guess is as good as mine …… G3WDI 32<\/p>\n\n\n\n

More on Jammer Nabbing<\/h3>\n\n\n\n

– hints on equipment and strategy …… WB0CMC 36<\/p>\n\n\n\n

Cheapy Scanner for the Memorizer<\/h3>\n\n\n\n

– is $5 cheap enough for you? …… WA2ORU 38<\/p>\n\n\n\n

Back to School<\/h3>\n\n\n\n

– we can still learn a thing or two about basic electricity …… W6HDM 40<\/p>\n\n\n\n

Moving Display ASCII Readout<\/h3>\n\n\n\n

– works with UARTs keyboards and micros …… W8VL 46<\/p>\n\n\n\n

Lab-quality Hi I Supply<\/h3>\n\n\n\n

– part II …… McClellan 54<\/p>\n\n\n\n

A Better Car Regulator<\/h3>\n\n\n\n

– improved reliability …… Gelsinger 58<\/p>\n\n\n\n

Test Gear Bargain from Heath<\/h3>\n\n\n\n

– a multi-purpose RCL bridge …… Staff 62<\/p>\n\n\n\n

Semiconductor Test Gadget<\/h3>\n\n\n\n

– use with your scope …… Truesdale 64<\/p>\n\n\n\n

Shoes and Socks for the IC-502<\/h3>\n\n\n\n

– when your vacation ends you’ll appreciate this amplifler\/pS combo …… N4QH 66<\/p>\n\n\n\n

Hams on The Trail of UFOs<\/h3>\n\n\n\n

– the Army’s “flying saucer” movie… did you see it? …… K8NQN 68<\/p>\n\n\n\n

Hi-fi CW for the TS-820<\/h3>\n\n\n\n

– the SSB filter copes with numbing noise …… K3HBP 70<\/p>\n\n\n\n

Going 2m All-mode with Yaesu’s FT-225RD<\/h3>\n\n\n\n

– not just another pretty face …… W6OJF 72<\/p>\n\n\n\n

The PL-259 Connection<\/h3>\n\n\n\n

– reducing adapters need not try your patience …… AC5P 73<\/p>\n\n\n\n

A Micro-controlled Ham Station<\/h3>\n\n\n\n

– TRS-80 does it …… W4UCH\/2 76<\/p>\n\n\n\n

CW and the TRS-80<\/h3>\n\n\n\n

– send Morse with a Level l …… WB7TUG 80<\/p>\n\n\n\n

A Solid-state RTTY Keyboard<\/h3>\n\n\n\n

– with auto-shift …… K2BLA 88<\/p>\n\n\n\n

SWLing? Try This Souped-up SSR-1<\/h3>\n\n\n\n

– digital readout and more for Drake’s fine receiver …… G3WDI 92<\/p>\n\n\n\n

Off to MARS with the S1<\/h3>\n\n\n\n

– mod is also useful for oddball repeater splits …… K5EDS 96<\/p>\n\n\n\n

Field-strength Fever<\/h3>\n\n\n\n

– this simple meter eases antenna tuning …… W6DOB 98<\/p>\n\n\n\n

CB to 10<\/h3>\n\n\n\n

– part XXIV: Penny’s SSB rig …… WA4UUV 100<\/p>\n\n\n\n

Build an Audio VOM<\/h3>\n\n\n\n

– and keep your eyes where they belong …… AC5P 104<\/p>\n\n\n\n

Sound-sensitive CW Sender<\/h3>\n\n\n\n

– for hands-free Morse …… W2GZ 106<\/p>\n\n\n\n

A Tightwad’s FSK Demodulator<\/h3>\n\n\n\n

– using the 567 PLL …… WA5WPQ 108<\/p>\n\n\n\n

Measure Frequency on your DVM<\/h3>\n\n\n\n

– this 3-chip circuit works to 10 kHz …… W3HB 115<\/p>\n\n\n