Raspberry Pi Pirate Radio -- Episode 355

Considering my inspiration, I just realized that I probably should've closed that comment with

TALK HARD

The Powerboost 1000 is a nice little piece of kit that combines a boost converter and regulator from the LiPo's 3.3V to the requisite 5V for the Pi as well as providing a convenient charge and protection circuit for the battery. It's not required if you're using a different power source. Mine was a self-contained, mobile unit to capture that "third act of Pump Up The Volume" aesthetic

Cheers, and happy broadcasting!

Thanks for getting back to me and I hope you had a great Christmas! These documents will undoubtedly prove useful as well. I also wanted to ask further about the ADA2465 component. While it wasn't discussed in the video, it is on the shopping list. I've been having some mixed understanding of the function of this piece. Is it to boost the power to the FM signal or to aid with mobile power supply? If it is concerning mobile power supply I have a RPi UPS (ASIN B07RPLPK2C) which I hope will work as an acceptable substitute. Thanks again.

Hi Nathan!

This was one of the very early projects on element14 Presents, before we really got into our groove, so to speak, and I didn't get a chance to do much follow-up regarding band pass filters. However, since you've joined element14, you do have access to one of the largest communities of electronics engineers and enthusiasts to ask questions of!

Feel free to drop questions in these comments, or start a post in the RF community!

These links might be helpful to get you started:

RF (Radio Frequency)

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Software Defined Radio Lessons with GNU Radio

This looks like a fun project to do with my son. I wasn't able to open this 'exclusive to members' content until I became a member. When I did I was expecting some more detailed documentation on this project, but only saw a parts list which, while helpful, wasn't necessary. Is there any 'deeper look' documentation? Particularly regarding the low & high pass filter circuitry? I'll admit I may be overlooking the link, but any help I would appreciate.

Kind regards!

Not having success in getting correct audio out of the Pi at 147 MHz.  Recorded voice is garbled and tones don't seem to come through at all.  Audio on the regular FM bands comes through fine and will reach almost a half a block.  Morse code will break squelch.  This was how I tested my filter.  I've tried overclocking the Pi and setting the core frequency to 250.  Is anyone else having success at the higher (Amateur Radio) frequencies?

Build it, man!

It is making a comeback, Like Matthew Eargle above said, dont underestimate the  power of radio. With more devices in the hands, Now more can turn to it than at any other time in the past.
Even though small transistor radios were cheap enough they were never as prolific in the hands of the public as cell phones have become, With the right app, that can change and grow like never before.  Might be a oppertunity there for a app with more to it than just a dial and frequencies...
As with the internet it's the substance that can be accesed on the other end of the signal, that draws in the viewers.
But having a transmission station in your hands has never been this easy. Introducing youth to this might be a key to bringing back more use of the 65.8~108 (depending on broadcast location) back.

That'll be fun! Let us know how it goes!