Packet #18013066 Success
POSITION_APP packet from Mechanicus Alpha (M1) to !ffffffff
47
Total Receptions
3
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
| Database ID: | 18013066 |
|---|---|
| Mesh Packet ID: |
0xbb953311
Used for correlation across gateways |
| Timestamp: | 2026-03-27 21:21:21 UTC |
| From Node: | Mechanicus Alpha (M1) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | Mechanicus Dominus (M4) |
|---|---|
| Channel: | LongFast |
| RSSI: | -39 dBm |
| SNR: | 6.25 dBm |
| Hop Info: |
0/7 hops
Start: 7, Limit: 7 |
| Relay Node: |
8c
M1
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions |
Payload Data
Protocol: POSITION_APP
Size: 28 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 49.922867° |
|---|---|
| Longitude: | -97.149747° |
| Altitude: | 233 m |
| Precision: | 18 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: | 28 bytes |
|---|---|
| Gateway: | !6984d8b8 |
| Channel: | LongFast |
| Payload Type: | POSITION_APP |
| Hop Count: | Unknown / 7 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!6984d8b8
Node ID format |
channel_id |
LongFast
Default public channel |
packet |
MeshPacket (28 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
1128171148
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
28 bytes
|
size |
hop_limit |
7
Remaining hops allowed |
uint32 |
hop_start |
7
Initial hop limit |
uint32 |
hops_taken |
0
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-39.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
6.25 dB
Signal quality at gateway |
float |
rx_time |
1774646480
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 |
140
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774646481.598669
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)
- ✓ Gateway node ID tracked
- ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Default channel - no encryption
- ⚠ Packet visible to MQTT subscribers
- ⚠ Full GPS precision shared
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !6984d8b8 |
| Position Precision: | 18 bits (~91.0m accuracy) |
| Position precision meters: | 91.0 |
| Zero Hop Policy: |
Enabled
Direct gateway connection |
| Signal Metrics: |
RSSI: -39.0 dBm SNR: 6.25 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 28 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 49.9228672,
"longitude": -97.1497472,
"altitude": 233,
"sats_in_view": null,
"precision_bits": 18
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!6984d8b8",
"channel_id": "LongFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 1128171148,
"to": 4294967295,
"id": 3147117329,
"rx_time": 1774646480,
"rx_snr": 6.25,
"rx_rssi": -39,
"hop_limit": 7,
"hop_start": 7,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 140,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d00a0c11d15002018c618e90125cff4c66928017800800100b80112",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 499228672,
"longitude_i": -971497472,
"altitude": 233,
"time": 1774646479,
"location_source": "LOC_MANUAL",
"ground_speed": 0,
"ground_track": 0,
"precision_bits": 18,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (28 bytes)
0d00a0c11d15002018c618e90125cff4c66928017800800100b80112
Hex Analysis:
| Size: | 28 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 Dominus (M4) Primary |
0.000s
Reference |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:21 UTC | Current |
| Mechanicus Dominus (M4) |
-0.091s
Before |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
-0.054s
Before |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
-0.043s
Before |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
-0.032s
Before |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
-0.022s
Before |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
-0.011s
Before |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.011s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.023s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.035s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.048s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.060s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
MediumFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.072s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
MediumFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.084s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
MediumFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.096s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
MediumFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.107s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
MediumFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.117s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
MediumFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.128s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
MediumFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.138s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
MediumFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.149s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
MediumFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.160s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
MediumFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.170s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
MediumFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.180s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.192s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.203s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.215s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.228s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.240s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.252s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.263s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.274s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.286s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.297s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortFast | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.308s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortTurbo | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.319s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortTurbo | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.330s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortTurbo | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.341s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortTurbo | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.352s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortTurbo | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.363s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortTurbo | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.374s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortTurbo | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.386s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortTurbo | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.398s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortTurbo | 2026-03-27 21:21:21 UTC | View |
| Mechanicus Dominus (M4) |
+0.413s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortTurbo | 2026-03-27 21:21:22 UTC | View |
| Mechanicus Dominus (M4) |
+0.427s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
ShortTurbo | 2026-03-27 21:21:22 UTC | View |
| Mechanicus Dominus (M4) |
+0.464s
After |
-39.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:22 UTC | View |
| Mechanicus Cadia (M3) |
+0.478s
After |
-31.0 dBm | 6.25 dB | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:22 UTC | View |
| Mechanicus Alpha (M1) |
+0.935s
After |
Unknown | Unknown | 0 |
8c
M1
|
LongFast | 2026-03-27 21:21:22 UTC | View |
47
Total Receptions
3
Unique Gateways