Packet #17790752 Success
POSITION_APP packet from !ef8aaf79 to !ffffffff
46
Total Receptions
2
Unique Gateways
3
Hop Count
39
Payload Bytes
Packet Information
| Database ID: | 17790752 |
|---|---|
| Mesh Packet ID: |
0x80a3eceb
Used for correlation across gateways |
| Timestamp: | 2026-03-27 09:17:46 UTC |
| From Node: | !ef8aaf79 (af79) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | Mechanicus Alpha (M1) |
|---|---|
| Channel: | MediumFast |
| RSSI: | -117 dBm |
| SNR: | -10.75 dBm |
| Hop Info: |
3/3 hops
Start: 3, Limit: 0 |
| Relay Node: |
ce
Last byte of the last hop that relayed this packet |
Payload Data
Protocol: POSITION_APP
Size: 39 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 49.754931° |
|---|---|
| Longitude: | -97.150566° |
| Altitude: | 224 m |
| Satellites: | 10 |
| Precision: | 12 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: | 39 bytes |
|---|---|
| Gateway: | !433e868c |
| Channel: | MediumFast |
| Payload Type: | POSITION_APP |
| Hop Count: | 3 / 3 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 2 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!433e868c
Node ID format |
channel_id |
MediumFast
|
packet |
MeshPacket (39 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
4018843513
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
39 bytes
|
size |
hop_limit |
Not set | uint32 |
hop_start |
3
Initial hop limit |
uint32 |
hops_taken |
3
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-117.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-10.75 dB
Signal quality at gateway |
float |
rx_time |
1774603065
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 |
206
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774603066.6609201
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: MediumFast
- ✓ Gateway node ID tracked
- ✓ Reduced position precision: ~5800.0m accuracy
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Packet visible to MQTT subscribers
- ⚠ Multi-hop path visible (3 hops)
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !433e868c |
| Position Precision: | 12 bits (~5800.0m accuracy) |
| Position precision meters: | 5800.0 |
| Signal Metrics: |
RSSI: -117.0 dBm SNR: -10.75 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 39 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 49.7549312,
"longitude": -97.1505664,
"altitude": 224,
"sats_in_view": 10,
"precision_bits": 12
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!433e868c",
"channel_id": "MediumFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 4018843513,
"to": 4294967295,
"id": 2158226667,
"rx_time": 1774603065,
"rx_snr": -10.75,
"rx_rssi": -117,
"hop_limit": 0,
"hop_start": 3,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 206,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0000a81d15000018c618e00125394bc66928023dbf4ac66958a901780080010098010ab8010c",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 497549312,
"longitude_i": -971505664,
"altitude": 224,
"time": 1774603065,
"location_source": "LOC_INTERNAL",
"timestamp": 1774602943,
"PDOP": 169,
"ground_speed": 0,
"ground_track": 0,
"sats_in_view": 10,
"precision_bits": 12,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (39 bytes)
0d0000a81d15000018c618e00125394bc66928023dbf4ac66958a901780080010098010ab8010c
Hex Analysis:
| Size: | 39 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 |
|---|---|---|---|---|---|---|---|---|
| Mechanicus Alpha (M1) Primary |
0.000s
Reference |
-117.0 dBm | -10.75 dB | 3 |
ce
|
MediumFast | 2026-03-27 09:17:46 UTC | Current |
| Mechanicus Alpha (M1) |
-0.309s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.279s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.254s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.224s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.203s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.191s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.179s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.167s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.156s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.134s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.119s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.105s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
MediumFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.088s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
MediumFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.074s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
MediumFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.061s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
MediumFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.047s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
MediumFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.030s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
MediumFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.015s
Before |
-117.0 dBm | -10.75 dB | 3 |
ce
|
MediumFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.020s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
MediumFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.039s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
MediumFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.055s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
MediumFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.067s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.080s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.091s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.104s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.118s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortFast | 2026-03-27 09:17:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.482s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortFast | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.496s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortFast | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.510s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortFast | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.526s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortFast | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.538s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortFast | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.552s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortFast | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.564s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortTurbo | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.580s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortTurbo | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.593s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortTurbo | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.608s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortTurbo | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.622s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortTurbo | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.635s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortTurbo | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.649s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortTurbo | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.661s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortTurbo | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.676s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortTurbo | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.699s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortTurbo | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+0.986s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
ShortTurbo | 2026-03-27 09:17:47 UTC | View |
| Mechanicus Alpha (M1) |
+1.002s
After |
-117.0 dBm | -10.75 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:47 UTC | View |
| lidman2 (lid2) |
+1.016s
After |
-126.0 dBm | -12.25 dB | 3 |
ce
|
LongFast | 2026-03-27 09:17:47 UTC | View |
46
Total Receptions
2
Unique Gateways