SWLing PostBuilding an SWL Chimera
https://swling.com/blog/2025/08/building-an-swl-chimera/
#HowTo #Mods #RadioMods #SamWN5C #Si4732 #Si4732Radios #SWLChimera
ThomasHeute ist dieser kleine Mini-Weltempfänger angekommen und ich habe gleich die Firmware aktualisiert, um die Bedienung einfacher und logischer zu machen.
Mini Radio 🕵️ Winziger Spionage Weltempfänger auf SI4732 Basis
TribesmanJohn 🇦🇺🌏👨🏼💻📷I had a tiny tiny radio arrive in the mail today, and it’s quite fun :)
https://www.vk7ben.au/2025/04/10/a-tiny-si4732-receiver/
#amateurradio #si4732 #gadgets #electronics cc:bsky
Olivier Raggi📻 Playing with the SI4732 Mini Radio firmware: I have added UTC time synchronized by RDS under the battery icon 🕰️
Mini SDR Empfänger Si4732 + ESP32
Dr. Fortyseven 🥃 █▓▒░Wrote up a quick thing to document updating the firmware on the #SI4732 "mini spy radio" on Linux.
The interface on this thing is terrible, but plenty of room for improvement. Glad to see there's an update, because it seems like a really cool little radio so far.
https://network47.org/updating-the-firmware-on-the-si4732-mini-spy-radio-on-linux/
Abhinav Krishna C K
hackaday unofficialShortwave Radio Picks up Sideband
With the push to having most of a radio receiver as part of a PC, it might seem odd to have a standalone communication receiver, but [OM0ET] reviews the latest one he picked up, an ATS25. Inside isn't much: a battery, a speaker, an encoder, and a Si4732 that provides the RF muscle.
It appears the receiver is pretty broadband which could be a problem. [OM0ET] suggests adding selectivity in the antenna or adding an extra board to use as a bandpass filter.
The design is simple enough, we are sure you could easily hack the unit to do different things. Most coverage stops at 30MHz, but there is an FM band, so we wondered if you could get the thing to work on other frequencies, too.
Clearly, the Arduino portion would be easily hackable. For the price, we were both impressed with the touchscreen and build, but maybe less impressed with the RF filtering. On the other hand, the small form factor would be great for backpacking or portable use and it isn't that expensive. It does seem to work pretty well in practice.
We've seen similar homebrew radios using the same chipset or, at least, a similar one.
#radiohacks #reviews #teardown #radio #receiver #si4732 #ssb
