Packet #39418637 Success
POSITION_APP packet from NGC3_Tag (NGC3) to !ffffffff
45
Total Receptions
1
Unique Gateways
2
Hop Count
30
Payload Bytes
Packet Information
| Database ID: | 39418637 |
|---|---|
| Mesh Packet ID: |
0x00da5785
Used for correlation across gateways |
| Timestamp: | 2026-05-16 03:30:05 UTC |
| From Node: | NGC3_Tag (NGC3) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | AH001 (0d74) |
|---|---|
| Channel: | MediumFast |
| RSSI: | -109 dBm |
| SNR: | -2.75 dBm |
| Hop Info: |
2/3 hops
Start: 3, Limit: 1 |
| Relay Node: |
38
Last byte of the last hop that relayed this packet |
Payload Data
Protocol: POSITION_APP
Size: 30 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 43.660083° |
|---|---|
| Longitude: | -79.390310° |
| Altitude: | 97 m |
| Satellites: | 12 |
| 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: | 30 bytes |
|---|---|
| Gateway: | !b03d0d74 |
| Channel: | MediumFast |
| Payload Type: | POSITION_APP |
| Hop Count: | 2 / 3 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 2 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 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 |
!b03d0d74
Node ID format |
channel_id |
MediumFast
|
packet |
MeshPacket (30 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
239472739
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
30 bytes
|
size |
hop_limit |
1
Remaining hops allowed |
uint32 |
hop_start |
3
Initial hop limit |
uint32 |
hops_taken |
2
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-109.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-2.75 dB
Signal quality at gateway |
float |
rx_time |
1778902204
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 |
56
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1778902205.5202744
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
- ✓ Reduced position precision: ~1500.0m accuracy
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Packet visible to MQTT subscribers
- ⚠ Multi-hop path visible (2 hops)
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !b03d0d74 |
| Position Precision: | 14 bits (~1500.0m accuracy) |
| Position precision meters: | 1500.0 |
| Signal Metrics: |
RSSI: -109.0 dBm SNR: -2.75 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 30 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 43.6600832,
"longitude": -79.3903104,
"altitude": 97,
"sats_in_view": 12,
"precision_bits": 14
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!b03d0d74",
"channel_id": "MediumFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 239472739,
"to": 4294967295,
"id": 14309253,
"rx_time": 1778902204,
"rx_snr": -2.75,
"rx_rssi": -109,
"hop_limit": 1,
"hop_start": 3,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 56,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0000061a150000aed0186125f56d096a2803780080010098010cb8010e",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 436600832,
"longitude_i": -793903104,
"altitude": 97,
"time": 1779002869,
"location_source": "LOC_EXTERNAL",
"ground_speed": 0,
"ground_track": 0,
"sats_in_view": 12,
"precision_bits": 14,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (30 bytes)
0d0000061a150000aed0186125f56d096a2803780080010098010cb8010e
Hex Analysis:
| Size: | 30 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 |
|---|---|---|---|---|---|---|---|---|
| AH001 (0d74) Primary |
0.000s
Reference |
-109.0 dBm | -2.75 dB | 2 |
38
|
MediumFast | 2026-05-16 03:30:05 UTC | Current |
| AH001 (0d74) |
-0.273s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.236s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.222s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.204s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.187s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.177s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.166s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.154s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.142s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.131s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.119s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.107s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
MediumFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.095s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
MediumFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.084s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
MediumFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.073s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
MediumFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.060s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
MediumFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.050s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
MediumFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.039s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
MediumFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.026s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
MediumFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
-0.010s
Before |
-109.0 dBm | -2.75 dB | 2 |
38
|
MediumFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.012s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
MediumFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.168s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.209s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.269s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.304s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.317s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.345s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.394s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.402s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.416s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.439s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.452s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortFast | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.464s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortTurbo | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.476s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortTurbo | 2026-05-16 03:30:05 UTC | View |
| AH001 (0d74) |
+0.489s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortTurbo | 2026-05-16 03:30:06 UTC | View |
| AH001 (0d74) |
+0.500s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortTurbo | 2026-05-16 03:30:06 UTC | View |
| AH001 (0d74) |
+0.512s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortTurbo | 2026-05-16 03:30:06 UTC | View |
| AH001 (0d74) |
+0.546s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortTurbo | 2026-05-16 03:30:06 UTC | View |
| AH001 (0d74) |
+0.558s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortTurbo | 2026-05-16 03:30:06 UTC | View |
| AH001 (0d74) |
+0.570s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortTurbo | 2026-05-16 03:30:06 UTC | View |
| AH001 (0d74) |
+0.582s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortTurbo | 2026-05-16 03:30:06 UTC | View |
| AH001 (0d74) |
+0.593s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortTurbo | 2026-05-16 03:30:06 UTC | View |
| AH001 (0d74) |
+0.620s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
ShortTurbo | 2026-05-16 03:30:06 UTC | View |
| AH001 (0d74) |
+0.632s
After |
-109.0 dBm | -2.75 dB | 2 |
38
|
LongFast | 2026-05-16 03:30:06 UTC | View |
45
Total Receptions
1
Unique Gateways