fluxcoil wiki

• dualband handheld radio
  • Radioddity GD-77
  • Kenwood TH-D75E, i.e. 879,00€
  • YAESU FT-65R
  • BAOFENG UV-5R
• QUANSHENG UV-K5 with custom firmware
  • https://github.com/sq5bpf/k5prog - default soft to save factory settings
  • https://github.com/kamilsss655/uv-k5-firmware-custom - firmware I flashed
  • link
  • https://codeberg.org/armin/uv-k5-firmware-armin
  • For operation in Japan, a label (“技適マーク”) needs to be on the device. It's issued by the government, 無線機　技適証明. I do not see one for the UV-K5 or K6. This shows how a K5 gets modified and then the label is aquired manually. This article also finds the unmodified device to be not compliant.

• my devices:
  • RTL-SDR Blog V4 R828D RTL2832U 1PPM TCXO SMA Software Defined Radio with Dipole Antenna, USD $39.95
  • RTL-SDR Blog SMA Straight Antenna Adapter Set, USD $14.95
• Fedora:
  • gnuradio: allrounder software, dnf -y install gnuradio-examples gr-osmosdr rtl-sdr
  • gqrx: watching the spectrum, dnf -y install gqrx
  • SDR++ dnf install sdrpp (not outputting audio to my hdmi audio sink)
  • SDR-Angel: mostly for recording & analyzing
  • Universal Radio Hacker: mostly for recording & analyzing
  • rtl_433: mostly for recording & analyzing
  • OpenWebRx rx.linkfanel.net
• Kali Linux
  • Convenient as kismet brings in plugins already for ADSB scanning (planes), also AMR
  • https://github.com/bemasher/rtlamr
  • apt install rtl-433 rtl-sdr bladerf-firmware gnuradio gqrx-sdr gr-osmosdr
  • install SDR++ (built for debian sid from github)

• Various SDR hardware
  • RTL-SDR V4 Dongle
  • Hack RF
  • Hack RF one with portapack
  • https://www.crowdsupply.com/lime-micro/
  • https://www.crowdsupply.com/microphase-technology/antsdr-e200
• docs
  • https://blinry.org/50-things-with-sdr/
  • German SDR introduction video: https://media.ccc.de/v/gpn21-57-sdr-software-defined-radio-eine-einfhrung
• Frequencies I can use with Japanese level 4, via site
• wspr, ft8, js8 transmitter

I have a smart meter for my flat, would be nice to get readings.

• Device names:
  • 富士電機メーター F6DWF-TA. Transmission probably by 920mhz mesh network wireless　(“920MHｚメッシュ方式（無線）”), or over power line, or LTE (not likely)
  • Second device: Osaki A6WWA-TA / 4006. For storing power consumption value for 45 days?
• potential encoding: ANSI C12.22 src
• potential protocols of my smart meter
• Wi-SUN（ワイ-サン） might be the protocol in use
  • standardized in: 802.15.4g/e/6LoWPAN
  • Frequency 922.5 ～ 927.9MHz, Modulation Binary GFSK
  • Channel Spacing (KHz): 200, 400, 600, Total Number of channels: 38, 18, 12
  • roles in Wi-SUN setups: ホームICT, HEMS(ヘムス/Home Energy Management System)
• Current state:
  • I see signals with RTL-SDR, in the frequency area 922.5 ～ 927.9MHz. But trying to record it with urh( Universal Radio Hacker), no signal is detected.
  • Maybe it's not GFSK?
  • Wanted to compare with what others receive on http://rx.linkfanel.net/ , but these devices just go to 30Mhz.
  • Creating a baseband recording (.wav file) and then opening it in https://www.sonicvisualiser.org/ on Linux, the program terminates