Packet #39241421 Success
POSITION_APP packet from !b2a7c04c to !1a4bf053
46
Total Receptions
2
Unique Gateways
2
Hop Count
29
Payload Bytes
Packet Information
| Database ID: | 39241421 |
|---|---|
| Mesh Packet ID: |
0x43f9fdb1
Used for correlation across gateways |
| Timestamp: | 2026-05-15 16:40:46 UTC |
| From Node: | !b2a7c04c (c04c) |
| To Node: | !1a4bf053 (f053) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | Mechanicus Alpha (M1) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -121 dBm |
| SNR: | -17.25 dBm |
| Hop Info: |
2/3 hops
Start: 3, Limit: 1 |
| Relay Node: |
ce
Last byte of the last hop that relayed this packet |
Payload Data
Protocol: POSITION_APP
Size: 29 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 49.825722° |
|---|---|
| Longitude: | -97.049729° |
| Altitude: | 235 m |
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: | 29 bytes |
|---|---|
| Gateway: | !433e868c |
| Channel: | ShortFast |
| Payload Type: | POSITION_APP |
| Hop Count: | 2 / 3 |
Privacy Summary
Exposure Level:
Direct Message
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
+ 1 more...
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
+ 1 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!433e868c
Node ID format |
channel_id |
ShortFast
|
packet |
MeshPacket (29 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
2997338188
Source node ID |
uint32 |
to |
441184339
Target node ID |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
29 bytes
|
size |
hop_limit |
1
Remaining hops allowed |
uint32 |
hop_start |
3
Initial hop limit |
uint32 |
hops_taken |
2
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-121.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-17.25 dB
Signal quality at gateway |
float |
rx_time |
1778863244
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 |
1778863246.4540837
Unix timestamp |
uint32 |
MQTT Privacy & Exposure Analysis
Analysis of privacy features and exposure risks when packet is shared via MQTT
Exposure Level: Direct Message
Privacy Features:
- ✓ Direct LoRa transmission (not via MQTT)
- ✓ Targeted to specific node
- ✓ Custom channel: ShortFast
- ✓ Gateway node ID tracked
Exposure Risks:
- ⚠ Packet visible to MQTT subscribers
- ⚠ Multi-hop path visible (2 hops)
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !433e868c |
| Signal Metrics: |
RSSI: -121.0 dBm SNR: -17.25 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 29 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 49.8257217,
"longitude": -97.0497285,
"altitude": 235,
"sats_in_view": null,
"precision_bits": null
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!433e868c",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 2997338188,
"to": 441184339,
"id": 1140456881,
"rx_time": 1778863244,
"rx_snr": -17.25,
"rx_rssi": -121,
"hop_limit": 1,
"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": "0d41cdb21d15fb6227c618eb0125714c076a2803489e0378158001e702",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 498257217,
"longitude_i": -970497285,
"altitude": 235,
"time": 1778863217,
"location_source": "LOC_EXTERNAL",
"altitude_hae": 207,
"ground_speed": 21,
"ground_track": 359,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (29 bytes)
0d41cdb21d15fb6227c618eb0125714c076a2803489e0378158001e702
Hex Analysis:
| Size: | 29 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 |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortFast | 2026-05-15 16:40:46 UTC | Current |
| Mechanicus Alpha (M1) |
-0.299s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.283s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.271s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.259s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.237s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.217s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.200s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.188s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.171s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.160s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.151s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.135s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
MediumFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.124s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
MediumFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.114s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
MediumFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.103s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
MediumFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.093s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
MediumFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.081s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
MediumFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.069s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
MediumFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.058s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
MediumFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.034s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
MediumFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.023s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
MediumFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
-0.011s
Before |
-121.0 dBm | -17.25 dB | 2 |
ce
|
MediumFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.011s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.022s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.033s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.043s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.054s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.064s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.075s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.085s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.095s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.106s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortFast | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.117s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortTurbo | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.129s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortTurbo | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.141s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortTurbo | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.152s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortTurbo | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.164s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortTurbo | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.175s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortTurbo | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.187s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortTurbo | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.198s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortTurbo | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.209s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortTurbo | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.219s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortTurbo | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.230s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
ShortTurbo | 2026-05-15 16:40:46 UTC | View |
| Mechanicus Alpha (M1) |
+0.240s
After |
-121.0 dBm | -17.25 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
| lidman2 (lid2) |
+0.251s
After |
-124.0 dBm | -11.75 dB | 2 |
ce
|
LongFast | 2026-05-15 16:40:46 UTC | View |
46
Total Receptions
2
Unique Gateways