{"id":2405,"date":"2020-07-03T21:32:49","date_gmt":"2020-07-03T21:32:49","guid":{"rendered":"https:\/\/www.snapwhole.com\/index.php\/73-amateur-radio-today-april-1971\/"},"modified":"2023-01-17T01:05:10","modified_gmt":"2023-01-17T01:05:10","slug":"73-amateur-radio-today-april-1971","status":"publish","type":"page","link":"https:\/\/www.snapwhole.com\/index.php\/73-amateur-radio-today-april-1971\/","title":{"rendered":"73 Amateur Radio Today – April 1971"},"content":{"rendered":"\n

73 Amateur Radio Today – April 1971<\/span><\/p>\n\n\n\n

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

What’s Really Different About FM?<\/h3>\n\n\n\n

– A lot a whole lot! …… K6MVH 12<\/p>\n\n\n\n

Aftermath: A Noise Blanker That Works<\/h3>\n\n\n\n

– The author returns to the drawing board …… W8RHR 18<\/p>\n\n\n\n

FM Intermodulation on 2m<\/h3>\n\n\n\n

– Chart for locating interference sources …… W6YAN 20<\/p>\n\n\n\n

Hotroddinq Motorola’s Hybrid HTs<\/h3>\n\n\n\n

– A commercial bid for the 450 market …… W7PUG 28<\/p>\n\n\n\n

Stability Without Crystals<\/h3>\n\n\n\n

– Introducing the Sentry Modcom whatever that is …… Staff 30<\/p>\n\n\n\n

Switching Remote Linears<\/h3>\n\n\n\n

– or local linears …… W0HKF 32<\/p>\n\n\n\n

Using Microwave for Repeater Links<\/h3>\n\n\n\n

– Microwave propagation for any purpose really …… Lenkurt 34<\/p>\n\n\n\n

IC Repeater Identifier<\/h3>\n\n\n\n

– It will also identity any other station …… WB6BFM 49<\/p>\n\n\n\n

Testing the National NCX 1000<\/h3>\n\n\n\n

– And enjoying every minute of it …… W2NSD\/1 58<\/p>\n\n\n\n

Build Your Own 2M FM<\/h3>\n\n\n\n

– Build this little hand transceiver …… K1CLL 60<\/p>\n\n\n\n

Repeater Directory for 1971<\/h3>\n\n\n\n

– Every open repeater in North America listed here …… Staff 78<\/p>\n\n\n\n

National FM Standards<\/h3>\n\n\n\n

– FM channels on the VHF and UHF bands …… W6YAN 100<\/p>\n\n\n\n

The FM-marketplace<\/h3>\n\n\n\n

– Buyers’ guide to 2m FM transceivers …… Staff 102<\/p>\n\n\n\n

Meter Evaluator<\/h3>\n\n\n\n

– New and-much better way to measure meter resistance …… Marovitch 116<\/p>\n\n\n\n

A Simple Varactor Modulator for Going FM<\/h3>\n\n\n\n

– Changes AM rig to FM …… WA9TFY 121<\/p>\n\n\n\n

FM Fun With a Scanner<\/h3>\n\n\n\n

– Listening to eight channels at once …… Staff 122<\/p>\n\n\n\n

Low Cost Signal Source<\/h3>\n\n\n\n

– 1.8 to 450 MHz for tuning your receiver …… VE3GFW 124<\/p>\n\n\n\n

Even More on Touchtone<\/h3>\n\n\n\n

– Answers to your questions on Touchtone …… W1IRH 126<\/p>\n\n\n\n

A Solid-state Preselector<\/h3>\n\n\n\n

– Tubes you’re expecting? Read brand C magazine …… W5JJ 128<\/p>\n\n\n\n

The Transistor 12 Watter for 10<\/h3>\n\n\n\n

– Three transistors and a barrel of fun …… W5PAG 131<\/p>\n\n\n\n

A Slice of Nippon Culture<\/h3>\n\n\n\n

– How did an SWL article get into 73? Lordy! …… Staff 135<\/p>\n\n\n\n

Ten Tee Receiver Test<\/h3>\n\n\n\n

– Nice new portable receiver …… WB2MYU 138<\/p>\n\n\n\n

Getting Publicity for Ham Radio<\/h3>\n\n\n\n

– And boy! Can we use it! …… K0YTI 140<\/p>\n\n\n