Packet #17981136 Success
POSITION_APP packet from VO1SU (VO1) to !ffffffff
45
Total Receptions
1
Unique Gateways
0
Hop Count
22
Payload Bytes
Packet Information
| Database ID: | 17981136 |
|---|---|
| Mesh Packet ID: |
0x8f6440e0
Used for correlation across gateways |
| Timestamp: | 2026-03-27 19:21:46 UTC |
| From Node: | VO1SU (VO1) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | VO1SU (VO1) |
|---|---|
| Channel: | LongFast |
| RSSI: | Unknown |
| SNR: | Unknown |
| Hop Info: |
0/7 hops
Start: 7, Limit: 7 |
| Relay Node: |
51
VO1
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: | 47.749530° |
|---|---|
| Longitude: | -59.310080° |
| Altitude: | 9 m |
| Precision: | 14 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: | !fa505051 |
| 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
+ 2 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 1 more...
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 1 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!fa505051
Node ID format |
channel_id |
LongFast
Default public channel |
packet |
MeshPacket (22 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
4199567441
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 |
7
Remaining hops allowed |
uint32 |
hop_start |
7
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 |
1774639307
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 |
81
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774639306.4325829
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
- ✓ Reduced position precision: ~1500.0m accuracy
- ✓ 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
MQTT-Specific Fields
| Gateway ID: | !fa505051 |
| Position Precision: | 14 bits (~1500.0m accuracy) |
| Position precision meters: | 1500.0 |
| 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: | 22 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 47.7495296,
"longitude": -59.31008,
"altitude": 9,
"sats_in_view": null,
"precision_bits": 14
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!fa505051",
"channel_id": "LongFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 4199567441,
"to": 4294967295,
"id": 2405712096,
"rx_time": 1774639307,
"rx_snr": 0.0,
"rx_rssi": 0,
"hop_limit": 7,
"hop_start": 7,
"via_mqtt": false,
"want_ack": false,
"priority": 10,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 81,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0000761c150000a6dc180925cbd8c6692802b8010e",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 477495296,
"longitude_i": -593100800,
"altitude": 9,
"time": 1774639307,
"location_source": "LOC_INTERNAL",
"precision_bits": 14,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (22 bytes)
0d0000761c150000a6dc180925cbd8c6692802b8010e
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 |
|---|---|---|---|---|---|---|---|---|
| VO1SU (VO1) Primary |
0.000s
Reference |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | Current |
| VO1SU (VO1) |
-0.176s
Before |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
-0.141s
Before |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
-0.129s
Before |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
-0.111s
Before |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
-0.093s
Before |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
-0.076s
Before |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
-0.058s
Before |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
-0.041s
Before |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
-0.020s
Before |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.012s
After |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.024s
After |
Unknown | Unknown | 0 |
51
VO1
|
MediumFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.045s
After |
Unknown | Unknown | 0 |
51
VO1
|
MediumFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.056s
After |
Unknown | Unknown | 0 |
51
VO1
|
MediumFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.067s
After |
Unknown | Unknown | 0 |
51
VO1
|
MediumFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.078s
After |
Unknown | Unknown | 0 |
51
VO1
|
MediumFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.089s
After |
Unknown | Unknown | 0 |
51
VO1
|
MediumFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.100s
After |
Unknown | Unknown | 0 |
51
VO1
|
MediumFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.111s
After |
Unknown | Unknown | 0 |
51
VO1
|
MediumFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.122s
After |
Unknown | Unknown | 0 |
51
VO1
|
MediumFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.133s
After |
Unknown | Unknown | 0 |
51
VO1
|
MediumFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.145s
After |
Unknown | Unknown | 0 |
51
VO1
|
MediumFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.157s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.169s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.182s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.193s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.205s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.217s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.229s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.241s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.252s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.263s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.273s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortFast | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.284s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortTurbo | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.294s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortTurbo | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.305s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortTurbo | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.316s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortTurbo | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.328s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortTurbo | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.341s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortTurbo | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.353s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortTurbo | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.365s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortTurbo | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.377s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortTurbo | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.389s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortTurbo | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.401s
After |
Unknown | Unknown | 0 |
51
VO1
|
ShortTurbo | 2026-03-27 19:21:46 UTC | View |
| VO1SU (VO1) |
+0.413s
After |
Unknown | Unknown | 0 |
51
VO1
|
LongFast | 2026-03-27 19:21:46 UTC | View |
45
Total Receptions
1
Unique Gateways