Packet #40713878 Success
POSITION_APP packet from Meshtastic c054 (c054) to !ffffffff
45
Total Receptions
1
Unique Gateways
0
Hop Count
31
Payload Bytes
Packet Information
| Database ID: | 40713878 |
|---|---|
| Mesh Packet ID: |
0x1eebdd57
Used for correlation across gateways |
| Timestamp: | 2026-05-19 09:00:46 UTC |
| From Node: | Meshtastic c054 (c054) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | !a20a1130 (1130) |
|---|---|
| Channel: | MediumFast |
| RSSI: | -28 dBm |
| SNR: | 7.0 dBm |
| Hop Info: |
0/4 hops
Start: 4, Limit: 4 |
| Relay Node: | None |
Payload Data
Protocol: POSITION_APP
Size: 31 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 46.897562° |
|---|---|
| Longitude: | -71.119667° |
| Altitude: | 75 m |
| Satellites: | 8 |
| 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: | 31 bytes |
|---|---|
| Gateway: | !a20a1130 |
| Channel: | MediumFast |
| Payload Type: | POSITION_APP |
| Hop Count: | Unknown / 4 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 3 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 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 |
!a20a1130
Node ID format |
channel_id |
MediumFast
|
packet |
MeshPacket (31 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
4014063700
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
31 bytes
|
size |
hop_limit |
4
Remaining hops allowed |
uint32 |
hop_start |
4
Initial hop limit |
uint32 |
hops_taken |
0
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-28.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
7.00 dB
Signal quality at gateway |
float |
rx_time |
1779181245
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 |
1779181246.2197301
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: ~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: | !a20a1130 |
| Position Precision: | 13 bits (~2900.0m accuracy) |
| Position precision meters: | 2900.0 |
| Zero Hop Policy: |
Enabled
Direct gateway connection |
| Signal Metrics: |
RSSI: -28.0 dBm SNR: 7.00 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 31 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 46.8975616,
"longitude": -71.1196672,
"altitude": 75,
"sats_in_view": 8,
"precision_bits": 13
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!a20a1130",
"channel_id": "MediumFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 4014063700,
"to": 4294967295,
"id": 518774103,
"rx_time": 1779181245,
"rx_snr": 7.0,
"rx_rssi": -28,
"hop_limit": 4,
"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": "0d0000f41b1500009cd5184b258d28cc6958b5017800800100980108b8010d",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 468975616,
"longitude_i": -711196672,
"altitude": 75,
"time": 1774987405,
"PDOP": 181,
"ground_speed": 0,
"ground_track": 0,
"sats_in_view": 8,
"precision_bits": 13,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (31 bytes)
0d0000f41b1500009cd5184b258d28cc6958b5017800800100980108b8010d
Hex Analysis:
| Size: | 31 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 |
|---|---|---|---|---|---|---|---|---|
| !a20a1130 (1130) Primary |
0.000s
Reference |
-28.0 dBm | 7.00 dB | 0 | - | MediumFast | 2026-05-19 09:00:46 UTC | Current |
| !a20a1130 (1130) |
-0.445s
Before |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:45 UTC | View |
| !a20a1130 (1130) |
-0.180s
Before |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.168s
Before |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.156s
Before |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.143s
Before |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.131s
Before |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.119s
Before |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.107s
Before |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.095s
Before |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.083s
Before |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.071s
Before |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.060s
Before |
-28.0 dBm | 7.00 dB | 0 | - | MediumFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.051s
Before |
-28.0 dBm | 7.00 dB | 0 | - | MediumFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.040s
Before |
-28.0 dBm | 7.00 dB | 0 | - | MediumFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.028s
Before |
-28.0 dBm | 7.00 dB | 0 | - | MediumFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
-0.014s
Before |
-28.0 dBm | 7.00 dB | 0 | - | MediumFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.011s
After |
-28.0 dBm | 7.00 dB | 0 | - | MediumFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.024s
After |
-28.0 dBm | 7.00 dB | 0 | - | MediumFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.037s
After |
-28.0 dBm | 7.00 dB | 0 | - | MediumFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.049s
After |
-28.0 dBm | 7.00 dB | 0 | - | MediumFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.062s
After |
-28.0 dBm | 7.00 dB | 0 | - | MediumFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.075s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.091s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.104s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.117s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.139s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.151s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.162s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.171s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.182s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.195s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.204s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortFast | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.215s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortTurbo | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.226s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortTurbo | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.238s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortTurbo | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.250s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortTurbo | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.262s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortTurbo | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.274s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortTurbo | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.286s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortTurbo | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.298s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortTurbo | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.310s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortTurbo | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.321s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortTurbo | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.332s
After |
-28.0 dBm | 7.00 dB | 0 | - | ShortTurbo | 2026-05-19 09:00:46 UTC | View |
| !a20a1130 (1130) |
+0.343s
After |
-28.0 dBm | 7.00 dB | 0 | - | LongFast | 2026-05-19 09:00:46 UTC | View |
45
Total Receptions
1
Unique Gateways