SDR# RTLAMR questions

[Wireman131]

I have been using RTLAMR on a Windows 10 machine for a few weeks with some luck. Mostly I am receiving reports from several R900 devices - I am assuming that these are smart water meters based on the data:
{Time:2019-06-08T20:29:43.901 R900:{ID:1548625406 Unkn1:0xA3 NoUse:33 BackFlow:0 Consumption: 138223 Unkn3:0x00 Leak: 4 LeakNow:0}}
{Time:2019-06-08T20:30:02.104 R900:{ID:1551775496 Unkn1:0xA3 NoUse:32 BackFlow:0 Consumption: 37114 Unkn3:0x00 Leak: 5 LeakNow:2}}
{Time:2019-06-08T20:30:25.935 R900:{ID:1548625406 Unkn1:0xA3 NoUse:33 BackFlow:0 Consumption: 138223 Unkn3:0x00 Leak: 4 LeakNow:0}}
{Time:2019-06-08T20:30:58.109 R900:{ID:1551775496 Unkn1:0xA3 NoUse:32 BackFlow:0 Consumption: 37114 Unkn3:0x00 Leak: 5 LeakNow:2}}
{Time:2019-06-08T20:32:03.895 R900:{ID:1548625406 Unkn1:0xA3 NoUse:33 BackFlow:0 Consumption: 138223 Unkn3:0x00 Leak: 4 LeakNow:0}}
{Time:2019-06-08T20:32:22.099 R900:{ID:1551775496 Unkn1:0xA3 NoUse:32 BackFlow:0 Consumption: 37114 Unkn3:0x00 Leak: 5 LeakNow:2}}
{Time:2019-06-08T20:32:45.900 R900:{ID:1548625406 Unkn1:0xA3 NoUse:33 BackFlow:0 Consumption: 138223 Unkn3:0x00 Leak: 4 LeakNow:0}}
{Time:2019-06-08T20:33:41.906 R900:{ID:1548625406 Unkn1:0xA3 NoUse:33 BackFlow:0 Consumption: 138223 Unkn3:0x00 Leak: 4 LeakNow:0}}
{Time:2019-06-08T20:34:23.906 R900:{ID:1548625406 Unkn1:0xA3 NoUse:33 BackFlow:0 Consumption: 138223 Unkn3:0x00 Leak: 4 LeakNow:0}}
{Time:2019-06-08T20:34:42.100 R900:{ID:1551775496 Unkn1:0xA3 NoUse:32 BackFlow:0 Consumption: 37116 Unkn3:0x00 Leak: 5 LeakNow:2}}


Occasionally I get something from a SCM device

{Time 2019-06-02T07 54 21.586 SCM 12089578 Type 14 Tamper {Phy 02 Enc 02} Consumption 2689951 CRC 0xBB52}}
{Time 2019-06-02T20 42 33.484 SCM 13577798 Type 0 Tamper {Phy 01 Enc 00} Consumption 7709324 CRC 0xFCAE}}
{Time 2019-06-02T20 42 33.484 SCM 13577798 Type 0 Tamper {Phy 01 Enc 00} Consumption 7709324 CRC 0xFCAE}}
{Time 2019-06-02T20 42 33.484 SCM 13577798 Type 0 Tamper {Phy 01 Enc 00} Consumption 7709324 CRC 0xFCAE}}
{Time 2019-06-02T20 42 33.484 SCM 13577798 Type 0 Tamper {Phy 01 Enc 00} Consumption 7709324 CRC 0xFCAE}}
{Time 2019-05-28T11 29 1.693 SCM 15391217 Type 3 Tamper {Phy 02 Enc 03} Consumption 16437741 CRC 0xC2E7}}
{Time 2019-06-03T04 51 28.399 SCM 21167396 Type 7 Tamper {Phy 00 Enc 02} Consumption 3281146 CRC 0x68F9}}
{Time 2019-06-03T04 51 28.399 SCM 21167396 Type 7 Tamper {Phy 00 Enc 02} Consumption 3281146 CRC 0x68F9}}
{Time 2019-06-03T04 51 28.399 SCM 21167396 Type 7 Tamper {Phy 00 Enc 02} Consumption 3281146 CRC 0x68F9}}
{Time 2019-06-03T04 51 28.399 SCM 21167396 Type 7 Tamper {Phy 00 Enc 02} Consumption 3281146 CRC 0x68F9}}
{Time 2019-06-04T10 4 22.229 SCM 44601053 Type 15 Tamper {Phy 02 Enc 01} Consumption 15696690 CRC 0x9F74}}

I am guessing that these are gas meters.

My smart electric meter has the digits 2.4 in the part number - I am assuming that it operates in the 2.4ghz range.

Will RTLAMR work in the 2.4ghz range? I am sure that my RTL-SDR dongles will not receive transmissions in that range - I plan on using a HackRF One unit. What center frequency should be specified? and, could someone please explain how the center frequency thing works? Is there a need to know exactly what frequency the devices are using? How wide is the band?

 

[alabamarailfan]

Have you looked up the part number on your electric meter to see what the manufacturer says about the part number? There is always the remote chance that the 2.4 means something else.

 

[z31jaime]

you are correct those are water and gas. pm me a picture of your meter and I can tell you if it is a smart meter,cell meter or ERT. all you will be able to read with SDR is the ERTS

 

[Wireman131]

Have you looked up the part number on your electric meter to see what the manufacturer says about the part number? There is always the remote chance that the 2.4 means something else.

Meter type is C2SODS. Not listed on the meters.csv list. Also, model number is SK9ITR24 - looking this up on the FCC website indicates that the meter operates in the 2.4ghz range. Also says ERT Reader and Openway.

 

[z31jaime]

if it is in openway mode then you will not read it