Packet #17914749 Success
POSITION_APP packet from Meshtastic 16d0 (16d0) to !ffffffff
45
Total Receptions
1
Unique Gateways
3
Hop Count
36
Payload Bytes
Packet Information
| Database ID: | 17914749 |
|---|---|
| Mesh Packet ID: |
0x930550fa
Used for correlation across gateways |
| Timestamp: | 2026-03-27 15:30:33 UTC |
| From Node: | Meshtastic 16d0 (16d0) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | Tracer-Mesh-bd1c (bd1c) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -118 dBm |
| SNR: | -17.75 dBm |
| Hop Info: |
3/4 hops
Start: 4, Limit: 1 |
| Relay Node: | None |
Payload Data
Protocol: POSITION_APP
Size: 36 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 43.175117° |
|---|---|
| Longitude: | -79.455846° |
| Altitude: | 117 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: | 36 bytes |
|---|---|
| Gateway: | !9ea0bd1c |
| Channel: | ShortFast |
| Payload Type: | POSITION_APP |
| Hop Count: | 3 / 4 |
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
+ 2 more...
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!9ea0bd1c
Node ID format |
channel_id |
ShortFast
|
packet |
MeshPacket (36 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
4055635664
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
36 bytes
|
size |
hop_limit |
1
Remaining hops allowed |
uint32 |
hop_start |
4
Initial hop limit |
uint32 |
hops_taken |
3
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-118.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-17.75 dB
Signal quality at gateway |
float |
rx_time |
1774625430
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 |
Not set | uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774625433.7641325
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
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Packet visible to MQTT subscribers
- ⚠ Multi-hop path visible (3 hops)
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !9ea0bd1c |
| Position Precision: | 13 bits (~2900.0m accuracy) |
| Position precision meters: | 2900.0 |
| Signal Metrics: |
RSSI: -118.0 dBm SNR: -17.75 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 36 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 43.1751168,
"longitude": -79.4558464,
"altitude": 117,
"sats_in_view": 7,
"precision_bits": 13
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!9ea0bd1c",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 4055635664,
"to": 4294967295,
"id": 2466599162,
"rx_time": 1774625430,
"rx_snr": -17.75,
"rx_rssi": -118,
"hop_limit": 1,
"hop_start": 4,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 0,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0000bc19150000a4d0187525aaa2c669280258dd0278008001c084b702980107b8010d",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 431751168,
"longitude_i": -794558464,
"altitude": 117,
"time": 1774625450,
"location_source": "LOC_INTERNAL",
"PDOP": 349,
"ground_speed": 0,
"ground_track": 5096000,
"sats_in_view": 7,
"precision_bits": 13,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (36 bytes)
0d0000bc19150000a4d0187525aaa2c669280258dd0278008001c084b702980107b8010d
Hex Analysis:
| Size: | 36 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 |
|---|---|---|---|---|---|---|---|---|
| Tracer-Mesh-bd1c (bd1c) Primary |
0.000s
Reference |
-118.0 dBm | -17.75 dB | 3 | - | ShortFast | 2026-03-27 15:30:33 UTC | Current |
| Tracer-Mesh-bd1c (bd1c) |
-0.406s
Before |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.381s
Before |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.362s
Before |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.351s
Before |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.335s
Before |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.312s
Before |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.301s
Before |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.290s
Before |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.279s
Before |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.268s
Before |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.257s
Before |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.246s
Before |
-118.0 dBm | -17.75 dB | 3 | - | MediumFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.236s
Before |
-118.0 dBm | -17.75 dB | 3 | - | MediumFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.225s
Before |
-118.0 dBm | -17.75 dB | 3 | - | MediumFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.214s
Before |
-118.0 dBm | -17.75 dB | 3 | - | MediumFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.202s
Before |
-118.0 dBm | -17.75 dB | 3 | - | MediumFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.190s
Before |
-118.0 dBm | -17.75 dB | 3 | - | MediumFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.178s
Before |
-118.0 dBm | -17.75 dB | 3 | - | MediumFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.165s
Before |
-118.0 dBm | -17.75 dB | 3 | - | MediumFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.148s
Before |
-118.0 dBm | -17.75 dB | 3 | - | MediumFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.136s
Before |
-118.0 dBm | -17.75 dB | 3 | - | MediumFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.122s
Before |
-118.0 dBm | -17.75 dB | 3 | - | MediumFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.107s
Before |
-118.0 dBm | -17.75 dB | 3 | - | ShortFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.096s
Before |
-118.0 dBm | -17.75 dB | 3 | - | ShortFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.086s
Before |
-118.0 dBm | -17.75 dB | 3 | - | ShortFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.075s
Before |
-118.0 dBm | -17.75 dB | 3 | - | ShortFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.065s
Before |
-118.0 dBm | -17.75 dB | 3 | - | ShortFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.055s
Before |
-118.0 dBm | -17.75 dB | 3 | - | ShortFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.045s
Before |
-118.0 dBm | -17.75 dB | 3 | - | ShortFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.035s
Before |
-118.0 dBm | -17.75 dB | 3 | - | ShortFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.024s
Before |
-118.0 dBm | -17.75 dB | 3 | - | ShortFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.012s
Before |
-118.0 dBm | -17.75 dB | 3 | - | ShortFast | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.012s
After |
-118.0 dBm | -17.75 dB | 3 | - | ShortTurbo | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.024s
After |
-118.0 dBm | -17.75 dB | 3 | - | ShortTurbo | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.036s
After |
-118.0 dBm | -17.75 dB | 3 | - | ShortTurbo | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.048s
After |
-118.0 dBm | -17.75 dB | 3 | - | ShortTurbo | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.059s
After |
-118.0 dBm | -17.75 dB | 3 | - | ShortTurbo | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.076s
After |
-118.0 dBm | -17.75 dB | 3 | - | ShortTurbo | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.087s
After |
-118.0 dBm | -17.75 dB | 3 | - | ShortTurbo | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.098s
After |
-118.0 dBm | -17.75 dB | 3 | - | ShortTurbo | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.109s
After |
-118.0 dBm | -17.75 dB | 3 | - | ShortTurbo | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.120s
After |
-118.0 dBm | -17.75 dB | 3 | - | ShortTurbo | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.132s
After |
-118.0 dBm | -17.75 dB | 3 | - | ShortTurbo | 2026-03-27 15:30:33 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.144s
After |
-118.0 dBm | -17.75 dB | 3 | - | LongFast | 2026-03-27 15:30:33 UTC | View |
45
Total Receptions
1
Unique Gateways