Packet #17812475 Success
POSITION_APP packet from eLoRaMesh Base (ELR2) to !ffffffff
45
Total Receptions
1
Unique Gateways
1
Hop Count
23
Payload Bytes
Packet Information
| Database ID: | 17812475 |
|---|---|
| Mesh Packet ID: |
0xc4c73bd8
Used for correlation across gateways |
| Timestamp: | 2026-03-27 10:19:43 UTC |
| From Node: | eLoRaMesh Base (ELR2) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | Seri Base d120 (SRB) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -96 dBm |
| SNR: | -2.75 dBm |
| Hop Info: |
1/3 hops
Start: 3, Limit: 2 |
| Relay Node: |
48
Last byte of the last hop that relayed this packet |
Payload Data
Protocol: POSITION_APP
Size: 23 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 43.689306° |
|---|---|
| Longitude: | -80.439402° |
| Altitude: | 412 m |
| Precision: | 32 bits |
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysisPacket Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)
| Total Size: | 23 bytes |
|---|---|
| Gateway: | !16ced120 |
| Channel: | ShortFast |
| Payload Type: | POSITION_APP |
| Hop Count: | 1 / 3 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 1 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!16ced120
Node ID format |
channel_id |
ShortFast
|
packet |
MeshPacket (23 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
861939080
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
23 bytes
|
size |
hop_limit |
2
Remaining hops allowed |
uint32 |
hop_start |
3
Initial hop limit |
uint32 |
hops_taken |
1
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-96.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-2.75 dB
Signal quality at gateway |
float |
rx_time |
1774606782
Receive timestamp |
fixed32 |
via_mqtt |
False
Direct LoRa transmission |
bool |
want_ack |
False
No ACK requested |
bool |
priority |
Not set | enum |
delayed |
Not set | enum |
channel |
Not set | uint32 |
pki_encrypted |
False
Standard encryption |
bool |
next_hop |
Not set | uint32 |
relay_node |
72
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774606783.3799088
Unix timestamp |
uint32 |
MQTT Privacy & Exposure Analysis
Analysis of privacy features and exposure risks when packet is shared via MQTT
Exposure Level: Broadcast
Privacy Features:
- ✓ Direct LoRa transmission (not via MQTT)
- ✓ Custom channel: ShortFast
- ✓ Gateway node ID tracked
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Packet visible to MQTT subscribers
- ⚠ Full GPS precision shared
- ⚠ Multi-hop path visible (1 hops)
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !16ced120 |
| Position Precision: | 32 bits (~1.0m accuracy) |
| Position precision meters: | 1.0 |
| Signal Metrics: |
RSSI: -96.0 dBm SNR: -2.75 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 23 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 43.689306,
"longitude": -80.439402,
"altitude": 412,
"sats_in_view": null,
"precision_bits": 32
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!16ced120",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 861939080,
"to": 4294967295,
"id": 3301391320,
"rx_time": 1774606782,
"rx_snr": -2.75,
"rx_rssi": -96,
"hop_limit": 2,
"hop_start": 3,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 72,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d84750a1a15dceb0dd0189c0328017800800100b80120",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 436893060,
"longitude_i": -804394020,
"altitude": 412,
"location_source": "LOC_MANUAL",
"ground_speed": 0,
"ground_track": 0,
"precision_bits": 32,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (23 bytes)
0d84750a1a15dceb0dd0189c0328017800800100b80120
Hex Analysis:
| Size: | 23 bytes |
|---|---|
| Format: | Protobuf (Protocol Buffers) |
| Encoding: | Binary with varint and length-delimited fields |
This is the raw protobuf-encoded payload as received from MQTT.
The structure follows the Meshtastic protobuf schema definitions.
All Receptions
All gateways that received this packetCorrelation: Using Mesh Packet ID
Reception Locations
Loading...
Loading reception map...
Map shows gateway locations that received this packet. Hop counts are displayed if available.
| Gateway | Time Offset | RSSI | SNR | Hops | Relay | Channel | Timestamp | Actions |
|---|---|---|---|---|---|---|---|---|
| Seri Base d120 (SRB) Primary |
0.000s
Reference |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortFast | 2026-03-27 10:19:43 UTC | Current |
| Seri Base d120 (SRB) |
-0.358s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.328s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.317s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.300s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.280s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.269s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.252s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.241s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.229s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.217s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.206s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.195s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
MediumFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.184s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
MediumFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.173s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
MediumFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.162s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
MediumFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.152s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
MediumFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.141s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
MediumFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.130s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
MediumFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.120s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
MediumFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.108s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
MediumFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.093s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
MediumFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.081s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
MediumFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.069s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.057s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.045s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.033s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.022s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
-0.011s
Before |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.011s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.022s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.038s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.048s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortFast | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.059s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortTurbo | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.070s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortTurbo | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.082s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortTurbo | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.094s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortTurbo | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.106s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortTurbo | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.118s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortTurbo | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.130s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortTurbo | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.141s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortTurbo | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.153s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortTurbo | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.165s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortTurbo | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.175s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
ShortTurbo | 2026-03-27 10:19:43 UTC | View |
| Seri Base d120 (SRB) |
+0.186s
After |
-96.0 dBm | -2.75 dB | 1 |
48
|
LongFast | 2026-03-27 10:19:43 UTC | View |
45
Total Receptions
1
Unique Gateways