Packet #17816463 Success
POSITION_APP packet from DIR Hochelaga (DIR2) to !ffffffff
45
Total Receptions
1
Unique Gateways
0
Hop Count
22
Payload Bytes
Packet Information
| Database ID: | 17816463 |
|---|---|
| Mesh Packet ID: |
0x1adf3313
Used for correlation across gateways |
| Timestamp: | 2026-03-27 10:29:22 UTC |
| From Node: | DIR Hochelaga (DIR2) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | DIR Rooftop (DIR) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -61 dBm |
| SNR: | 3.75 dBm |
| Hop Info: |
0/5 hops
Start: 5, Limit: 5 |
| Relay Node: |
e1
DIR2
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: 22 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 45.554074° |
|---|---|
| Longitude: | -73.551053° |
| Altitude: | 27 m |
| Precision: | 15 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: | 22 bytes |
|---|---|
| Gateway: | !6985083c |
| Channel: | ShortFast |
| Payload Type: | POSITION_APP |
| Hop Count: | Unknown / 5 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 3 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 3 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 |
!6985083c
Node ID format |
channel_id |
ShortFast
|
packet |
MeshPacket (22 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
3959922657
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
22 bytes
|
size |
hop_limit |
5
Remaining hops allowed |
uint32 |
hop_start |
5
Initial hop limit |
uint32 |
hops_taken |
0
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-61.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
3.75 dB
Signal quality at gateway |
float |
rx_time |
1774607362
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 |
225
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774607362.142922
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
- ✓ Reduced position precision: ~729.0m accuracy
- ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Packet visible to MQTT subscribers
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !6985083c |
| Position Precision: | 15 bits (~729.0m accuracy) |
| Position precision meters: | 729.0 |
| Zero Hop Policy: |
Enabled
Direct gateway connection |
| Signal Metrics: |
RSSI: -61.0 dBm SNR: 3.75 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 22 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 45.5540736,
"longitude": -73.5510528,
"altitude": 27,
"sats_in_view": null,
"precision_bits": 15
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!6985083c",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 3959922657,
"to": 4294967295,
"id": 450835219,
"rx_time": 1774607362,
"rx_snr": 3.75,
"rx_rssi": -61,
"hop_limit": 5,
"hop_start": 5,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 225,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0000271b15000029d4181b28037800800100b8010f",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 455540736,
"longitude_i": -735510528,
"altitude": 27,
"location_source": "LOC_EXTERNAL",
"ground_speed": 0,
"ground_track": 0,
"precision_bits": 15,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (22 bytes)
0d0000271b15000029d4181b28037800800100b8010f
Hex Analysis:
| Size: | 22 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 |
|---|---|---|---|---|---|---|---|---|
| DIR Rooftop (DIR) Primary |
0.000s
Reference |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortFast | 2026-03-27 10:29:22 UTC | Current |
| DIR Rooftop (DIR) |
-0.368s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.330s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.310s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.300s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.283s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.262s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.250s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.240s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.229s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.218s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.207s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.196s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
MediumFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.185s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
MediumFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.174s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
MediumFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.163s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
MediumFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.151s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
MediumFast | 2026-03-27 10:29:21 UTC | View |
| DIR Rooftop (DIR) |
-0.138s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
MediumFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
-0.126s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
MediumFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
-0.113s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
MediumFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
-0.102s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
MediumFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
-0.090s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
MediumFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
-0.078s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
MediumFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
-0.066s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
-0.055s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
-0.044s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
-0.033s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
-0.022s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
-0.011s
Before |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.011s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.022s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.034s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.046s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortFast | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.058s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortTurbo | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.071s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortTurbo | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.083s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortTurbo | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.095s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortTurbo | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.106s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortTurbo | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.118s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortTurbo | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.129s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortTurbo | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.140s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortTurbo | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.151s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortTurbo | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.162s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortTurbo | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.173s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
ShortTurbo | 2026-03-27 10:29:22 UTC | View |
| DIR Rooftop (DIR) |
+0.184s
After |
-61.0 dBm | 3.75 dB | 0 |
e1
DIR2
|
LongFast | 2026-03-27 10:29:22 UTC | View |
45
Total Receptions
1
Unique Gateways