Can the Best Firmware even be better?
Yes, it can! Now direct frequency entry has been added.
Also, there is a 5 hour bandscope available.
#hamradio #hamr #AmateurRadio #firmware #SI4732 #prepping #antenna #shortwave #FM
I picked these up today while sitting in my car.
I was using an ATS-Mini si4732 radio with a small amplifier attached to a 20m ham stick style antenna. I fed the audio into my phone via an earbud pressed into the microphone hole very high tech #sstv #si4732 #atsmini #hamradio
Waterfall on HF
No conditions at this moment.
#hamradio #hamr #AmateurRadio #SI4732
#testing the #waterfall #display
Can be activated at backlight 32 or 33 and use ETM mode.
By turning and pressing the #VFO button you can enter the #station showed on the waterfall.
#hamradio #hamr #AmateurRadio #radio #SI4732 #antenna #SDR
#firmware
With this mod, you will have a #RTTY #decoder
New is the terminal #display to have a larger read back window.
#conditions are bad today but here is a small #demo with Pinneberg #weather #station
#hamradio #hamr #AmateurRadio #antenna #tadio #SI4732 #WX
#HF #shortwave
Two weeks ago, during #JOTA , someone was really impressed by the #SI4732 #mini #radio so I give my device to him.
I bought a new one (V3) and the #hardware #mod for #RTTY decoder is already made.
Playtime.
#hamradio #hamr #AmateurRadio #YOUTH #scouting
In between some appointments, I stopped near a small forest for a #test in a #QRM free area
There only was some QRM from the #SI4732 itself but I could #decode #Pinneberg good on #longwave 147 kHz
#hamradio #hamr #AmateurRadio #RTTY #Weather #SDR #radio #antenna #DDH47 #Germany
CQ WW RTTY contest but now on this #SI4732 #radio
Receiving YT3X in 45 baud, on this small #receiver is almost a #JamesBond #movie
#hamradio #hamr #AmateurRadio #RTTY #telex #Espionnage #contest #antenna #RadioAmateur
#sundayvibes
Have some time to install the newest #firmware on the #SI4732 #radio
This video shows #RTTY decoder of Pinneberg #weather station at a speed of 50 baud on the 30m band.
#hamradio #hamr #AmateurRadio
#RadioAmateur #Shortwave #antenna #weekend
Again a new #firmware update for the #SI4732 mini #radio
This time some nice features for #FM #DX
Mono stereo indicators, also in percentage. And AFC fine tuning. As we had on high end tuners in #70s and #80s
#hamradio #hamr #AmateurRadio #software #STEREO
#mono
After the modification, I can decode #RTTY with the #SI4732 #radio
No luck in #CW decoding yet.
#hamradio #hamr #AmateurRadio #mod #hardware #ESP32 #DIY #electronics #weather #Pinneberg
The #SI4732 #radio has some more new features.
- ETM, preprogrammed channels
- New GUI
- CW decoder
- RTTY decoder
And many more. I try to make video when conditions are better.
#hamradio #hamr #AmateurRadio #firmware #CW #RTTY #shortwave #portable #RDS #FM
A new #firmware (v2.23) for the #popular #radio #SI4732 is just released with again some nice features.
#FM de-emphasis (on region).
All #RDS
#EEPROM #backup
And nice new #signalisfanart and S/N #meter
#hamradio #hamr #AmateurRadio #WiFi #arduino
Compare noise level #SI4732 vs #Belka #radio #receiver
SI4732 starts #receive at around -125 dBm and Belka -135 dBm
Also much more birdies on the SI4732, hard to find a decent clean #frequency
#hamr #HamRadio #AmateurRasio #measurement #HF
How compares a cheap #SI4732 #receiver to the legend #Belka ?
Let's go to this nice place in the #forest away from #QRM sources
I was able to hear weak #signals on the Belka (Q5) but absolute nil on the SI4732
Also nothing on my #kiwiSDR at home
#hamradio
#AmateurRadio #hamr
#POTA #SOTA #field
Installed v2.20 #firmware on the #SI4732 #radio
The most useful new feature for me is direct #frequency input by pushing (hold) and turn the encoder dail knob.
#hamr #hamradio #AmateurRadio #antenna #HF #shortwave #software #cheap #portable #SOTA #POTA
Upload new #firmware v2.11 into the #ESP32 #SI4732 mini #radio toy.
New features on #RDS (RT, PT, PI) and freq database (#SSTV #FT8 #CB).
Still no #CW as mode available but bandwidth at 500Hz is selectable.
#hamr #hamradio
#AmateurRadio #arduino #software #antenna #FM
I had a tiny tiny radio arrive in the mail today, and it’s quite fun :)
www.vk7ben.au/2025/04/10/a-tiny-si4732...
#amateurradio #si4732 #gadgets #electronics cc:bsky
📻 Playing with the SI4732 Mini Radio firmware: I have added UTC time synchronized by RDS under the battery icon 🕰️
github.com/esp32-si4732...
#ESP32-S3 #SI4732 #SWL
Der kleinste Weltempfänger der Welt?
youtu.be/FxfNxYF5QIY #sdr #si4732 #weltempfänger #receiver #swl
Another weak #signal compare between the #Belka DSP #receiver and the cheap #SI4732
Good copy on Belka but hard on SI4732
#hamradio #hamr #AmateurRadio #CW #HF #DX
Weak #signal compare between #Belka receiver and #SI4732 #receiver
About S7 on the #FTdx5000MP (2 elem yagi), good to copy on the #Belka and very weak on #SI4732
(SI4732 has USB only and abt 1.5 kHz offset)
#hamr #hamradio #AmateurRadio #DSP #radio #CW #HF #shortwave
