Michigan Mighty Mite

Michigan Mighty Mite QRPp transmitter. About the simplest transmitter you can make. This one is my first attempt and out of scrap parts. Didn't have exact parts but close. Sure, it chips like a sick bird but it puts out approx 220mw. Has about 7 parts I think. Built it a few years ago.

Other radios I have built are: small wonder lab's rockmite..an awsome milliwatt rig. I built the sw=40 from small wonder lab's also. I also have a beloved K-2 that has the best filters and an effective noise blanker. The K-2 was fun but I couldn't have done it without a vibrant support group and Elecraft support. I did learn a lot but mostly I just follow the directions. It's still "magic" to me. I still don't get it. hi hi I've also built the $10.00 pixie. Not a good rig so save the money and build it from scraps. Better yet, find a schmatic of the tiny texas tornado which is a modified pixie-II and build that..As requested here is the schematic I found this from!
http://www.zianet.com/dhassall/mm.pdf

Category:

Science & Technology

Tags:

• qrp
• qrpp
• QRP
• QRPP
• QRPp
• amateur
• radio
• kit
• electronics
• gadget
• roland
• skeeter
• whitsitt

[gliderrider]

I haven't made any contacts with this rig. I didn't really give it a good try though. A couple of friends across town did tell me they heard the signal so I'm sure it would work. The best I've ever done was a rockmite radio to rockmite from Northern California to near Seattle Washington. That was a thrill. Also had a guy about 70 miles away who heard me on a pixie II with his $12,000 ICOM.

[Grunta5]

Hi, I just built one...( 80m) no qso's yet but a friend has received my signal about 7km away. Im a bit high up on the band , need to get a crystal closer to 3.5

My antenna is a Windom. 73' Grant.

[mrdinx]

Where can you get a schematic for this tx?

[gauchoheavy]

Your transmission isn't chirpy. It drifts on transmission peaks, but the tone seems pretty clear in my opinion.

[5p1cc]

Great little trx..:-) Why dont i have an x-tal ? Did you make any contacts with it..?

[XtalQRP]

Nice rig! I watched this video today and it inspired me to root in my 'bits' box. An hour later and voila! Another Mite QRP transmitter!

Appr0x 500milliwatts with a BFY50 NPN transister. unning on 40 meters

Regards, Robs.

[kc7fys]

Nice video--my comment must have been filtered. Sounds like despite the instability of your oscillator, you've got a usable transmitter. And cute kids there to tell you so.

Best 73, DE 7J1AWL Jonathan