Packet #39333582 Success
POSITION_APP packet from Logan_Mobile (LOGN) to !ffffffff
1
Total Receptions
1
Unique Gateways
2
Hop Count
37
Payload Bytes
Packet Information
| Database ID: | 39333582 |
|---|---|
| Mesh Packet ID: |
0x14ce42c4
Used for correlation across gateways |
| Timestamp: | 2026-05-15 22:24:28 UTC |
| From Node: | Logan_Mobile (LOGN) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | 📻PTBA LINK mqtt.mt.gt msh/CA/ON (PTBA) |
|---|---|
| Channel: | LongFast |
| RSSI: | -70 dBm |
| SNR: | -0.25 dBm |
| Hop Info: |
2/7 hops
Start: 7, Limit: 5 |
| Relay Node: |
f3
Last byte of the last hop that relayed this packet |
Payload Data
Protocol: POSITION_APP
Size: 37 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 44.272435° |
|---|---|
| Longitude: | -78.341325° |
| Altitude: | 190 m |
| Satellites: | 6 |
| Precision: | 19 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: | 37 bytes |
|---|---|
| Gateway: | !02e7901c |
| Channel: | LongFast |
| Payload Type: | POSITION_APP |
| Hop Count: | 2 / 7 |
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:
âš Visible to all nodes on channel
âš Default channel - no encryption
+ 4 more...
âš Visible to all nodes on channel
âš Default channel - no encryption
+ 4 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!02e7901c
Node ID format |
channel_id |
LongFast
Default public channel |
packet |
MeshPacket (37 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
1357481753
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
37 bytes
|
size |
hop_limit |
5
Remaining hops allowed |
uint32 |
hop_start |
7
Initial hop limit |
uint32 |
hops_taken |
2
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-70.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-0.25 dB
Signal quality at gateway |
float |
rx_time |
1778883868
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 |
243
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1778883868.3715272
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:
- âš Visible to all nodes on channel
- âš Default channel - no encryption
- âš Packet visible to MQTT subscribers
- âš Full GPS precision shared
- âš Multi-hop path visible (2 hops)
- âš RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !02e7901c |
| Position Precision: | 19 bits (~45.0m accuracy) |
| Position precision meters: | 45.0 |
| Signal Metrics: |
RSSI: -70.0 dBm SNR: -0.25 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 37 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 44.2724352,
"longitude": -78.3413248,
"altitude": 190,
"sats_in_view": 6,
"precision_bits": 19
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!02e7901c",
"channel_id": "LongFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 1357481753,
"to": 4294967295,
"id": 349061828,
"rx_time": 1778883868,
"rx_snr": -0.25,
"rx_rssi": -70,
"hop_limit": 5,
"hop_start": 7,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 243,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0070631a1500104ed118be0125179d076a2802589e0278008001b0a9c90b980106b80113",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 442724352,
"longitude_i": -783413248,
"altitude": 190,
"time": 1778883863,
"location_source": "LOC_INTERNAL",
"PDOP": 286,
"ground_speed": 0,
"ground_track": 24270000,
"sats_in_view": 6,
"precision_bits": 19,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (37 bytes)
0d0070631a1500104ed118be0125179d076a2802589e0278008001b0a9c90b980106b80113
Hex Analysis:
| Size: | 37 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
| Gateway | Time Offset | RSSI | SNR | Hops | Relay | Channel | Timestamp | Actions |
|---|---|---|---|---|---|---|---|---|
| 📻PTBA LINK mqtt.mt.gt msh/CA/ON (PTBA) Primary |
0.000s
Reference |
-70.0 dBm | -0.25 dB | 2 |
f3
|
LongFast | 2026-05-15 22:24:28 UTC | Current |
| No other receptions found within ±2 seconds | ||||||||
1
Total Receptions
1
Unique Gateways