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Expensive: https://store.oratek.com/products/tofu-electronic-board Slightly less expensive:

As an EE you should know the reason. When you use a boost converter to increase the nominal 5V, you reduce the total current available AND increase chip count on the board. The Pi foundation has

Having a BSEE, I've always wondered why the developers of this Ri5 have a need for the extra +.1v on the 5v input, that the other versions are not critical of. I'm thinking it's to ensure there is

Check out this thread. /g/RaspberryPi-4-HamRadio/topic/power_pi_4_or_5_from_12_volts/104033513 Scroll down and you will find some Amazon links for products I tried. As stated

IIRC the RPi4 states 5.2v. but what is 0.1v between fiends. I use old recycled 'Traco Power' 5v 5A smpsus and supply power direct to the Pin Headers using two power and two sense cables. I had a good

SupTronics Technologies suptronics.com Sent while portable! please excuse typos.

I ended up buying a bunch of buck converters that will take 10-24V in and give a constant adjustable output. I have a couple devices (like weather radio) that run from 9V wall warts as well as some

my experience is that most wall warts provide 4.99 volts and the rpis want 5.1

I'm tired of it! The voltage drop in most or all USB cables is too much. Hearing about all the 'high current' capability of USB C cables, I ordered some SHORT one and USB C to micro adapters for my

You can do this using Analog Reflector in a DVSwitch server but unless you have some Linux command line experience it is difficult to implement. -- Bob AF9W

Michael, So something like the ClearNode but the price is eye-watering. https://www.node-ventures.com/buy-clearnode/ I could buy a DMR radio, Pi and MMDVM hat for much less, and drive everything

Don't think you can do that. A hotspot is an interface between your digital radio and the internet. Most common hand held FM radios have neither the bandwidth or short enough switching times.

As I understand it, you can use a standard sound device like a Digirig to do modes like Dstar (GMSK), YSF (C4FM), and P25-Phase1 but DMR requires deeper control of the RF waveform. As such, you need

I found a bunch of stuff about DroidStar and other stuff using an AMBE dongle, but, so far, nothing about how to interface it to a radio. They all seem to be some kind of interface to on line nodes

Droidstar allows all but D-Star to work without the AMBE chip including the new M17 mode. Google it. -- Bob AF9W

I suspect that you'd also need an AMBE2 dongle for this, and also a USB sound card for handling the microphone input - presuming, of course, that he was talking about actually working the digital

There may be some smoke. However, there are products such as the ThumbDV from NW Digital Radio (and other dongles that contain an AMBE chip) that allow the use of software such as BlueDV that allow

Never used it and think you need an interface but this is the software. https://www.pistar.uk/ I know a few people that use this but it has never been anything I am interested in but you should get

Well you would need a 2mtr radio with a 9600 baud packet port as most of the DigiModes use similar types of modulation to get two audio channels into one normal channel. You could then probably

Overheard a conversation on a repeater the other day that was very interesting. The person claimed he had a basic 2 meter analog radio and connected a Raspberry Pi via Digirig interface which allowed