Kv4p HT – A homebrew 1W radio (VHF or UHF) that plugs into an Android phone
181 points by krupan
by thenthenthen
2 subcomments
There are many cheap shanzhai android phones with walkie talkie ptt functions (around 400MHz iirc) for about a decade. We tried to convince manufactures to open up the software stack to no avail, while being bullied at local hackerspaces (“this is illegal!”). I am licensed.
Is it so difficult to have schematics and pcb exported as PDF so that people do not need to fire up KiCAD to view the stuff?
by wolvoleo
1 subcomments
Nice!! I wish it could do DMR though. Analog isn't used to much anymore in these parts. Although to be more precise, HAM radio has declined a lot but DMR repeaters are linked in groups so it seems like there's a lot more activity.
by bdavbdav
0 subcomment
I used to use SDR for DAB radio in the nexus 7 in the dash of my BMW E46. It didn’t work very well but was closer to being some kind of radio receiver (not trans at least)
by RobotToaster
3 subcomments
1w seems a little limited? A cheap baofeng is 8w.
by landgenoot
3 subcomments
> 1 watt transmit can go miles yet sips your phone’s battery
How far can such a device reach in a typical urban environment with the longer antenna?
by Melatonic
1 subcomments
Is it still worth it to mess around with older full duplex handhelds ?
by tamimio
0 subcomment
I loved it, amazing work, thanks for sharing it!
by Crunchified
3 subcomments
This doesn't turn your phone into a ham transceiver at all.
It turns your phone into a transceiver controller.
Given that a cell phone is a transceiver, this headline is rather disappointing clickbait.
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