AcuRite 1035 UHF data link tech characteristics query

[VE4PER / Andy]

I am trying to get SDR Uno &  RSP1A to detect and decode signal between
5 in 1 sensor unit to display unit so I can have a backup diagnostic to
verify that data comm link.

I can see what appears  I suspect to be it, but it looks like
cyclical/repetitive  short bursts on the same approx length of xmssn as
FT8, but the bursts seem to be occurring on six different discreet UHF
freqs in a channel width of about 433.8 MHz to 434.1 MHz.

Does anyone have any more tech info about this beyond AcuRite's brochure
that just says it is in 433 MHz band area? I can feed detected burst
audio via VAC to decoders of sorts but need to know what program to use
to detect and decode it.

Does each sensor on the mast unit xmit on it's own? I can maybe grab a
short vid clip to show it if that might be of use?

Thanks for any info.

73 & Gud DX

[rich T]

Andy

Take a look at rtl_433 (https://github.com/merbanan/rtl_433). This software decodes AcuRite sensors.  No, the 5 N 1 transmits different message types that contains the sensor data.  The pressure sensor is located in the console. 

time: "2020-06-27 21:29:46"

model: "Acurite-5n1"

subtype: 56

id: 1531

channel: "A"

sequence_num: 1

battery_ok: 1

wind_avg_km_h: 3.483

temperature_F: 73.8

humidity: 94

mic: "CHECKSUM"

mod: "ASK"

freq: 433.931

rssi: -0.132

snr: 13.244

noise: -13.376

time: "2020-06-27 21:31:16"

model: "Acurite-5n1"

subtype: 49

id: 1531

channel: "A"

sequence_num: 1

battery_ok: 1

wind_avg_km_h: 2.656

wind_dir_deg: 180

rain_in: 19.27

mic: "CHECKSUM"

mod: "ASK"

freq: 433.951

rssi: -0.142

snr: 13.246

noise: -13.388