Brewing Master

Question:

I am an electronics engineer and I though a good project would be to build an aircraft tranceiver. Has anyone got any good schematics or ideas ?

You can engineer up a simple single or double conversion AM receiver with 2N2222A transistors and a couple of opamps for the audio section. A simple diode detector will do. I did this when I was an EE student in comm lab, you must have been one of those bit head in school — Scott F. Migaldi, K9PO MI-150972 PP-ASEL-IA Are you a PADI Instructor or DM? Then join the PADI Instructor Yahoo Group at http://groups.yahoo.com/group/PADI-Instructors/join Catch the wave! www.hamwave.com **"A long time ago being crazy meant something, nowadays everyone is crazy" — Charles Manson**

Response:

How about a kit? http://www.ramseyelectronics.com/cgi-bin/commerce.exe?preadd=action&k… I am an electronics engineer and I though a good project would be to build an aircraft tranceiver. Has anyone got any good schematics or ideas ? Thanks s

– –Ray Andraka, P.E. President, the Andraka Consulting Group, Inc. 401/884-7930     Fax 401/884-7950 http://www.andraka.com  "They that give up essential liberty to obtain a little   temporary safety deserve neither liberty nor safety."                                           -Benjamin Franklin, 1759

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I am an electronics engineer and I though a good project would be to build an aircraft tranceiver. Has anyone got any good schematics or ideas ? Thanks

Do a few web searches, there are several diode-detector based schematics out there. If you’re looking for one with a heterodyning (is that a word?) front end… http://www.reed-electronics.com/ednmag/archives/1997/092597/20di_03.htm -Nathan

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I am an electronics engineer and I though a good project would be to build an aircraft tranceiver. Has anyone got any good schematics or ideas ? Thanks s

There was a receiver only project in Electronics Now a few years ago.  IIRC, they became Poptronics then went out of business.  Design was based on a NE602.

Response:

There was a receiver only project in Electronics Now a few years ago.  IIRC, they became Poptronics then went out of business.  Design was based on a NE602.

Larry’s still around operating the magazine as a web page.  Of course, nothing has changed in six months as near as I can tell.

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- Hide quoted text — Show quoted text – I am an electronics engineer and I though a good project would be to build an aircraft tranceiver. Has anyone got any good schematics or ideas ? Thanks s There was a receiver only project in Electronics Now a few years ago.  IIRC, they became Poptronics then went out of business.  Design was based on a NE602.

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shared these priceless pearls of wisdom: – I am an electronics engineer and I though a good project would be to build – an aircraft tranceiver. – -You may not operate such a tranciever (even to test it) unless you and the -equipment are licensed. That is not true.  You can’t get the license until you do the TA & C tests, and you can’t do the tests until you get the license?  No, the FCC does not make us do the chase-your-tail routine so common with the FAA. BTW for both of you, it is "transceiver".   You won’t get the equipment licensed without paying -mucho money. The rules allow a little latitude, much more than you realize.  Mucho is in the eye of the muchee.   Amateur ("ham") radio operator can build and operate their own -equipment but only on the ham bands. That isn’t true either.   That would be something to look into.  Go -to http://www.arrl.com for information on how to get involved in ham radio and -get licensed. You are telling an electronic engineer about ARRL?  That’s a kick. Jim Jim Weir    (A&P/IA, CFI, & other good alphabet soup) VP Eng RST   Pres. Cyberchapter   EAA Tech. Counselor

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I am an electronics engineer and I though a good project would be to build an aircraft tranceiver.

You may not operate such a tranciever (even to test it) unless you and the equipment are licensed.  You won’t get the equipment licensed without paying mucho money.  Amateur ("ham") radio operator can build and operate their own equipment but only on the ham bands.  That would be something to look into.  Go to http://www.arrl.com for information on how to get involved in ham radio and get licensed. Jose — (for Email, make the obvious changes in my address)

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I don’t think it would hurt anybody if you kept your project in a faraday cage into a resistive load.  As another person mentioned, don’t use a home brew transceiver in the aircraft band.  If you have a lawful reason to be transmitting there, buy a 300 dollar hand held transceiver.   A good place for that is in the amateur radio band.  They will welcome you there.  Not enough home brewer’s in the hobby any more.  If you want to do something AM in the VHF range have a look at the band plan for the 144 – 148 Mhz or Ham 2 meter band.  You will get simular propagation charaisticts. Oh and you will be allowed to run higher output radios there as well if you want. I am an electronics engineer and I though a good project would be to build an aircraft tranceiver. Has anyone got any good schematics or ideas ? Thanks s

– "How can there possibly be liberty and justice for all, when, in the name of justice, people claim rights to income, food, housing, education, health care, transportation, ad infinitum? We can’t. Positive rights to receive such things, absent an obligation to earn them, must violate others’ liberty, by taking some of their income without their consent. They are really just wishes, convertible into benefits for some only by employing the government to violate others’ rights not to have what is theirs taken." –Pepperdine Professor Gary Galles

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I am an electronics engineer and I though a good project would be to build an aircraft tranceiver. Has anyone got any good schematics or ideas ?

Since you want to build a transmitter on the aviation band, you have to meet some pretty tight bandwidth requirements.  The last thing the aviation community needs is a unlicensed, possibly "dirty" transmitter on the aviation band.

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I am an electronics engineer and I though a good project would be to build an aircraft tranceiver. Has anyone got any good schematics or ideas ? Thanks s

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