Packet #17634493 Success
POSITION_APP packet from PBM4 to !ffffffff
45
Total Receptions
1
Unique Gateways
0
Hop Count
34
Payload Bytes
Packet Information
| Database ID: | 17634493 |
|---|---|
| Mesh Packet ID: |
0xf2f6a247
Used for correlation across gateways |
| Timestamp: | 2026-03-27 01:02:18 UTC |
| From Node: | PBM4 (c6b0) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | PBR3 (88cd) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -37 dBm |
| SNR: | 7.5 dBm |
| Hop Info: |
0/3 hops
Start: 3, Limit: 3 |
| Relay Node: |
b0
PBM4
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: 34 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 42.860544° |
|---|---|
| Longitude: | -80.714138° |
| Altitude: | 253 m |
| Satellites: | 7 |
| Precision: | 13 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: | 34 bytes |
|---|---|
| Gateway: | !0d2388cd |
| 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
+ 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 |
!0d2388cd
Node ID format |
channel_id |
ShortFast
|
packet |
MeshPacket (34 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
883345072
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
34 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 |
-37.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
7.50 dB
Signal quality at gateway |
float |
rx_time |
1774573324
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 |
176
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774573338.8311107
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: ~2900.0m 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: | !0d2388cd |
| Position Precision: | 13 bits (~2900.0m accuracy) |
| Position precision meters: | 2900.0 |
| Zero Hop Policy: |
Enabled
Direct gateway connection |
| Signal Metrics: |
RSSI: -37.0 dBm SNR: 7.50 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 34 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 42.860544,
"longitude": -80.7141376,
"altitude": 253,
"sats_in_view": 7,
"precision_bits": 13
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!0d2388cd",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 883345072,
"to": 4294967295,
"id": 4076249671,
"rx_time": 1774573324,
"rx_snr": 7.5,
"rx_rssi": -37,
"hop_limit": 3,
"hop_start": 3,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 176,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d00008c19150000e4cf18fd012505d7c569280258d3017800800100980107b8010d",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 428605440,
"longitude_i": -807141376,
"altitude": 253,
"time": 1774573317,
"location_source": "LOC_INTERNAL",
"PDOP": 211,
"ground_speed": 0,
"ground_track": 0,
"sats_in_view": 7,
"precision_bits": 13,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (34 bytes)
0d00008c19150000e4cf18fd012505d7c569280258d3017800800100980107b8010d
Hex Analysis:
| Size: | 34 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 |
|---|---|---|---|---|---|---|---|---|
| PBR3 (88cd) Primary |
0.000s
Reference |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortFast | 2026-03-27 01:02:18 UTC | Current |
| PBR3 (88cd) |
-0.397s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.344s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.333s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.323s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.311s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.299s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.287s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.275s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.263s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.250s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.239s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.228s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
MediumFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.216s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
MediumFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.205s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
MediumFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.194s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
MediumFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.184s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
MediumFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.173s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
MediumFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.163s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
MediumFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.153s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
MediumFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.142s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
MediumFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.128s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
MediumFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.116s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
MediumFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.104s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.092s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.080s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.069s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.057s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.043s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.032s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.021s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
-0.011s
Before |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.010s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortFast | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.020s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortTurbo | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.030s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortTurbo | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.041s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortTurbo | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.052s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortTurbo | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.064s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortTurbo | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.075s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortTurbo | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.087s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortTurbo | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.099s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortTurbo | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.110s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortTurbo | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.122s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortTurbo | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.133s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
ShortTurbo | 2026-03-27 01:02:18 UTC | View |
| PBR3 (88cd) |
+0.144s
After |
-37.0 dBm | 7.50 dB | 0 |
b0
PBM4
|
LongFast | 2026-03-27 01:02:18 UTC | View |
45
Total Receptions
1
Unique Gateways