Packet #17826146 Success
POSITION_APP packet from VE3XLQ Smashtastic (XLQH) to !ffffffff
45
Total Receptions
1
Unique Gateways
5
Hop Count
27
Payload Bytes
Packet Information
| Database ID: | 17826146 |
|---|---|
| Mesh Packet ID: |
0x01c305f9
Used for correlation across gateways |
| Timestamp: | 2026-03-27 10:56:00 UTC |
| From Node: | VE3XLQ Smashtastic (XLQH) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | Tracer-Mesh-bd1c (bd1c) |
|---|---|
| Channel: | MediumFast |
| RSSI: | -118 dBm |
| SNR: | -19.75 dBm |
| Hop Info: |
5/5 hops
Start: 5, Limit: 0 |
| Relay Node: |
3c
Last byte of the last hop that relayed this packet |
Payload Data
Protocol: POSITION_APP
Size: 27 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 43.255398° |
|---|---|
| Longitude: | -79.880192° |
| Altitude: | 73 m |
| 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: | 27 bytes |
|---|---|
| Gateway: | !9ea0bd1c |
| Channel: | MediumFast |
| Payload Type: | POSITION_APP |
| Hop Count: | 5 / 5 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!9ea0bd1c
Node ID format |
channel_id |
MediumFast
|
packet |
MeshPacket (27 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
2021279318
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
27 bytes
|
size |
hop_limit |
Not set | uint32 |
hop_start |
5
Initial hop limit |
uint32 |
hops_taken |
5
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-118.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-19.75 dB
Signal quality at gateway |
float |
rx_time |
1774608957
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 |
60
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774608960.528769
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: MediumFast
- ✓ Gateway node ID tracked
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Packet visible to MQTT subscribers
- ⚠ Full GPS precision shared
- ⚠ Multi-hop path visible (5 hops)
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !9ea0bd1c |
| Position Precision: | 17 bits (~182.0m accuracy) |
| Position precision meters: | 182.0 |
| Signal Metrics: |
RSSI: -118.0 dBm SNR: -19.75 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 27 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 43.2553984,
"longitude": -79.880192,
"altitude": 73,
"sats_in_view": null,
"precision_bits": 17
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!9ea0bd1c",
"channel_id": "MediumFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 2021279318,
"to": 4294967295,
"id": 29558265,
"rx_time": 1774608957,
"rx_snr": -19.75,
"rx_rssi": -118,
"hop_limit": 0,
"hop_start": 5,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 60,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0040c81915004063d01849251062c66928017800800100b80111",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 432553984,
"longitude_i": -798801920,
"altitude": 73,
"time": 1774608912,
"location_source": "LOC_MANUAL",
"ground_speed": 0,
"ground_track": 0,
"precision_bits": 17,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (27 bytes)
0d0040c81915004063d01849251062c66928017800800100b80111
Hex Analysis:
| Size: | 27 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 | -19.75 dB | 5 |
3c
|
MediumFast | 2026-03-27 10:56:00 UTC | Current |
| Tracer-Mesh-bd1c (bd1c) |
-0.651s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:55:59 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.481s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.465s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.453s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.442s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.428s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.417s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.403s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.051s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.038s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.027s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
-0.010s
Before |
-118.0 dBm | -19.75 dB | 5 |
3c
|
MediumFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.013s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
MediumFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.025s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
MediumFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.041s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
MediumFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.056s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
MediumFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.069s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
MediumFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.088s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
MediumFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.101s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
MediumFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.117s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
MediumFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.129s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
MediumFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.140s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.152s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.163s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.178s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.188s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.199s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.209s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.220s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.230s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.241s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.253s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortFast | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.266s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortTurbo | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.278s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortTurbo | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.290s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortTurbo | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.302s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortTurbo | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.313s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortTurbo | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.324s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortTurbo | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.336s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortTurbo | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.347s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortTurbo | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.359s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortTurbo | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.369s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortTurbo | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.380s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
ShortTurbo | 2026-03-27 10:56:00 UTC | View |
| Tracer-Mesh-bd1c (bd1c) |
+0.391s
After |
-118.0 dBm | -19.75 dB | 5 |
3c
|
LongFast | 2026-03-27 10:56:00 UTC | View |
45
Total Receptions
1
Unique Gateways