Packet #17920341 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: | 17920341 |
|---|---|
| Mesh Packet ID: |
0x0bfc5e16
Used for correlation across gateways |
| Timestamp: | 2026-03-27 15:48:29 UTC |
| From Node: | VE3XLQ Smashtastic (XLQH) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | TMS stationary outdoor node (TMSO) |
|---|---|
| Channel: | LongFast |
| RSSI: | -124 dBm |
| SNR: | -12.5 dBm |
| Hop Info: |
5/5 hops
Start: 5, Limit: 0 |
| Relay Node: |
18
rrB1
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: 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: | !43b596d0 |
| Channel: | LongFast |
| Payload Type: | POSITION_APP |
| Hop Count: | 5 / 5 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 4 more...
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 4 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!43b596d0
Node ID format |
channel_id |
LongFast
Default public channel |
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 |
-124.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-12.50 dB
Signal quality at gateway |
float |
rx_time |
1774626508
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 |
24
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774626509.8400602
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
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Default channel - no encryption
- ⚠ 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: | !43b596d0 |
| Position Precision: | 17 bits (~182.0m accuracy) |
| Position precision meters: | 182.0 |
| Signal Metrics: |
RSSI: -124.0 dBm SNR: -12.50 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": "!43b596d0",
"channel_id": "LongFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 2021279318,
"to": 4294967295,
"id": 201088534,
"rx_time": 1774626508,
"rx_snr": -12.5,
"rx_rssi": -124,
"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": 24,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0040c81915004063d0184925a8a6c66928017800800100b80111",
"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": 1774626472,
"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)
0d0040c81915004063d0184925a8a6c66928017800800100b80111
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 |
|---|---|---|---|---|---|---|---|---|
| TMS stationary outdoor node (TMSO) Primary |
0.000s
Reference |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:29 UTC | Current |
| TMS stationary outdoor node (TMSO) |
-0.083s
Before |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
-0.054s
Before |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
-0.035s
Before |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
-0.018s
Before |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.011s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.022s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.032s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.043s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.054s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.065s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.076s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
MediumFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.088s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
MediumFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.100s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
MediumFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.112s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
MediumFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.125s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
MediumFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.136s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
MediumFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.148s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
MediumFast | 2026-03-27 15:48:29 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.160s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
MediumFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.172s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
MediumFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.183s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
MediumFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.194s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
MediumFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.205s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.216s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.226s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.238s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.248s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.259s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.271s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.284s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.296s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.308s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.321s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortFast | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.332s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortTurbo | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.344s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortTurbo | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.356s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortTurbo | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.367s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortTurbo | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.378s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortTurbo | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.389s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortTurbo | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.400s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortTurbo | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.411s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortTurbo | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.422s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortTurbo | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.433s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortTurbo | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.443s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
ShortTurbo | 2026-03-27 15:48:30 UTC | View |
| TMS stationary outdoor node (TMSO) |
+0.456s
After |
-124.0 dBm | -12.50 dB | 5 |
18
rrB1
|
LongFast | 2026-03-27 15:48:30 UTC | View |
45
Total Receptions
1
Unique Gateways