Packet #18262043 Success
POSITION_APP packet from Meshtastic 8b90 (8b90) to !ffffffff
45
Total Receptions
1
Unique Gateways
0
Hop Count
25
Payload Bytes
Packet Information
| Database ID: | 18262043 |
|---|---|
| Mesh Packet ID: |
0x542b91be
Used for correlation across gateways |
| Timestamp: | 2026-03-28 11:47:57 UTC |
| From Node: | Meshtastic 8b90 (8b90) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | Meshtastic 8b90 (8b90) |
|---|---|
| Channel: | ShortFast |
| RSSI: | Unknown |
| SNR: | Unknown |
| Hop Info: |
0/3 hops
Start: 3, Limit: 3 |
| Relay Node: |
90
8b90
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: 25 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 45.539328° |
|---|---|
| Longitude: | -73.624781° |
| Precision: | 17 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: | 25 bytes |
|---|---|
| Gateway: | !75e98b90 |
| Channel: | ShortFast |
| Payload Type: | POSITION_APP |
| Hop Count: | Unknown / 3 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 2 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!75e98b90
Node ID format |
channel_id |
ShortFast
|
packet |
MeshPacket (25 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
1978239888
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
25 bytes
|
size |
hop_limit |
3
Remaining hops allowed |
uint32 |
hop_start |
3
Initial hop limit |
uint32 |
hops_taken |
0
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
Not set | int32 |
rx_snr |
Not set | float |
rx_time |
1774698476
Receive timestamp |
fixed32 |
via_mqtt |
False
Direct LoRa transmission |
bool |
want_ack |
False
No ACK requested |
bool |
priority |
10
Packet priority level |
enum |
delayed |
Not set | enum |
channel |
Not set | uint32 |
pki_encrypted |
False
Standard encryption |
bool |
next_hop |
Not set | uint32 |
relay_node |
144
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774698477.19997
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
- ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Packet visible to MQTT subscribers
- ⚠ Full GPS precision shared
MQTT-Specific Fields
| Gateway ID: | !75e98b90 |
| Position Precision: | 17 bits (~182.0m accuracy) |
| Position precision meters: | 182.0 |
| Zero Hop Policy: |
Enabled
Direct gateway connection |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 25 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 45.539328,
"longitude": -73.6247808,
"altitude": null,
"sats_in_view": null,
"precision_bits": 17
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!75e98b90",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 1978239888,
"to": 4294967295,
"id": 1412141502,
"rx_time": 1774698476,
"rx_snr": 0.0,
"rx_rssi": 0,
"hop_limit": 3,
"hop_start": 3,
"via_mqtt": false,
"want_ack": false,
"priority": 10,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 144,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d00c0241b1500c01dd425ecbfc76928017800800100b80111",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 455393280,
"longitude_i": -736247808,
"time": 1774698476,
"location_source": "LOC_MANUAL",
"ground_speed": 0,
"ground_track": 0,
"precision_bits": 17,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (25 bytes)
0d00c0241b1500c01dd425ecbfc76928017800800100b80111
Hex Analysis:
| Size: | 25 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 |
|---|---|---|---|---|---|---|---|---|
| Meshtastic 8b90 (8b90) Primary |
0.000s
Reference |
Unknown | Unknown | 0 |
90
8b90
|
ShortFast | 2026-03-28 11:47:57 UTC | Current |
| Meshtastic 8b90 (8b90) |
-0.357s
Before |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.332s
Before |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.316s
Before |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.306s
Before |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.295s
Before |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.282s
Before |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.270s
Before |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.257s
Before |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.245s
Before |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.233s
Before |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.221s
Before |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.209s
Before |
Unknown | Unknown | 0 |
90
8b90
|
MediumFast | 2026-03-28 11:47:56 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.197s
Before |
Unknown | Unknown | 0 |
90
8b90
|
MediumFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.186s
Before |
Unknown | Unknown | 0 |
90
8b90
|
MediumFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.174s
Before |
Unknown | Unknown | 0 |
90
8b90
|
MediumFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.163s
Before |
Unknown | Unknown | 0 |
90
8b90
|
MediumFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.152s
Before |
Unknown | Unknown | 0 |
90
8b90
|
MediumFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.141s
Before |
Unknown | Unknown | 0 |
90
8b90
|
MediumFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.130s
Before |
Unknown | Unknown | 0 |
90
8b90
|
MediumFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.119s
Before |
Unknown | Unknown | 0 |
90
8b90
|
MediumFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.108s
Before |
Unknown | Unknown | 0 |
90
8b90
|
MediumFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.096s
Before |
Unknown | Unknown | 0 |
90
8b90
|
MediumFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.084s
Before |
Unknown | Unknown | 0 |
90
8b90
|
ShortFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.072s
Before |
Unknown | Unknown | 0 |
90
8b90
|
ShortFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.059s
Before |
Unknown | Unknown | 0 |
90
8b90
|
ShortFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.048s
Before |
Unknown | Unknown | 0 |
90
8b90
|
ShortFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.036s
Before |
Unknown | Unknown | 0 |
90
8b90
|
ShortFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.023s
Before |
Unknown | Unknown | 0 |
90
8b90
|
ShortFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
-0.011s
Before |
Unknown | Unknown | 0 |
90
8b90
|
ShortFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.011s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.022s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.033s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortFast | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.044s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortTurbo | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.056s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortTurbo | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.067s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortTurbo | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.078s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortTurbo | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.090s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortTurbo | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.102s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortTurbo | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.114s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortTurbo | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.127s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortTurbo | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.138s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortTurbo | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.150s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortTurbo | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.162s
After |
Unknown | Unknown | 0 |
90
8b90
|
ShortTurbo | 2026-03-28 11:47:57 UTC | View |
| Meshtastic 8b90 (8b90) |
+0.175s
After |
Unknown | Unknown | 0 |
90
8b90
|
LongFast | 2026-03-28 11:47:57 UTC | View |
45
Total Receptions
1
Unique Gateways