Author Topic: TIL how to make homemade Miracle Whip (or: Ham Radio Megathread) (Read 1865 times)

This is my only radio.
And I'm working on building one of these and these from junkbox parts. Together the parts for each cost ~$60.
I won't disagree with that.

oh man the circutry in this is a mess:

I'm surprised he even wa able to make a circuit diagram for it

but it still seems pretty neato, my sdr can't receive shortwave, but I'm gonna buy another one and mod it

U2 · July 14, 2014, 12:11:04 PM

Quote from: Aide33 on July 14, 2014, 12:02:23 PM

oh man the circutry in this is a mess:
[im g]http://www.qsl.net/pa2ohh/2bnd3.jpg[/img]
I'm surprised he even wa able to make a circuit diagram for it

but it still seems pretty neato, my sdr can't receive shortwave, but I'm gonna buy another one and mod it

The wiring in that radio is supposed to be awful - the guy who made it used what's called "dead bug" construction, which is sort of a lazy version of Manhattan-style. Lazy, but it works a treat (usually). And he most likely made the schematic before actually making the radio.

Also, you don't need to buy another SDR dongle to do shortwave - just buy a Ham-It-Up frequency upconverter. More expensive, but easier and better.

Aide33 · July 14, 2014, 12:12:40 PM

Quote from: U2 on July 14, 2014, 12:11:04 PM

The wiring in that radio is supposed to be awful - the guy who made it used what's called "dead bug" construction, which is sort of a lazy version of Manhattan-style. And he most likely made the schematic before actually making the radio.

Also, you don't need to buy another SDR dongle to do shortwave - just buy a Ham-It-Up frequency upconverter. More expensive, but easier and better.

yeah but there's a mod for it on certain chips http://www.rtl-sdr.com/rtl-sdr-direct-sampling-mode/

and I don't want to sacrifice mine to do it because it's a R820T micro so I can't do it
an upconverter is an option though