Packet #39397936 Success
POSITION_APP packet from VE1EJB-3 (caa0) to !ffffffff
45
Total Receptions
1
Unique Gateways
0
Hop Count
36
Payload Bytes
Packet Information
| Database ID: | 39397936 |
|---|---|
| Mesh Packet ID: |
0x0cd3f4b1
Used for correlation across gateways |
| Timestamp: | 2026-05-16 02:09:20 UTC |
| From Node: | VE1EJB-3 (caa0) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | VE1EJB-0 (d158) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -21 dBm |
| SNR: | 6.25 dBm |
| Hop Info: |
0/5 hops
Start: 5, Limit: 5 |
| Relay Node: |
9d
caa0
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: 36 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 44.413747° |
|---|---|
| Longitude: | -64.533299° |
| Altitude: | 10 m |
| Satellites: | 6 |
| Precision: | 15 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: | 36 bytes |
|---|---|
| Gateway: | !da5ed158 |
| Channel: | ShortFast |
| Payload Type: | POSITION_APP |
| Hop Count: | Unknown / 5 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 3 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 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 |
!da5ed158
Node ID format |
channel_id |
ShortFast
|
packet |
MeshPacket (36 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
39018653
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
36 bytes
|
size |
hop_limit |
5
Remaining hops allowed |
uint32 |
hop_start |
5
Initial hop limit |
uint32 |
hops_taken |
0
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-21.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
6.25 dB
Signal quality at gateway |
float |
rx_time |
1778897352
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 |
157
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1778897360.8615077
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: ShortFast
- ✓ Gateway node ID tracked
- ✓ Reduced position precision: ~729.0m 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: | !da5ed158 |
| Position Precision: | 15 bits (~729.0m accuracy) |
| Position precision meters: | 729.0 |
| Zero Hop Policy: |
Enabled
Direct gateway connection |
| Signal Metrics: |
RSSI: -21.0 dBm SNR: 6.25 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 36 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 44.4137472,
"longitude": -64.5332992,
"altitude": 10,
"sats_in_view": 6,
"precision_bits": 15
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!da5ed158",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 39018653,
"to": 4294967295,
"id": 215217329,
"rx_time": 1778897352,
"rx_snr": 6.25,
"rx_rssi": -21,
"hop_limit": 5,
"hop_start": 5,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 157,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0000791a15000089d9180a25c1d1076a280258d00278008001f08bc10a980106b8010f",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 444137472,
"longitude_i": -645332992,
"altitude": 10,
"time": 1778897345,
"location_source": "LOC_INTERNAL",
"PDOP": 336,
"ground_speed": 0,
"ground_track": 22038000,
"sats_in_view": 6,
"precision_bits": 15,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (36 bytes)
0d0000791a15000089d9180a25c1d1076a280258d00278008001f08bc10a980106b8010f
Hex Analysis:
| Size: | 36 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 |
|---|---|---|---|---|---|---|---|---|
| VE1EJB-0 (d158) Primary |
0.000s
Reference |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortFast | 2026-05-16 02:09:20 UTC | Current |
| VE1EJB-0 (d158) |
-0.386s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.370s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.355s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.335s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.313s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.297s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.286s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.273s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.261s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.249s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.237s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.225s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
MediumFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.210s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
MediumFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.198s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
MediumFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.185s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
MediumFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.173s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
MediumFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.162s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
MediumFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.151s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
MediumFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.140s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
MediumFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.129s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
MediumFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.117s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
MediumFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.107s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
MediumFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.096s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.083s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.071s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.057s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.043s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.029s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
-0.013s
Before |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
+0.038s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
+0.049s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
+0.060s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortFast | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
+0.072s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortTurbo | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
+0.086s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortTurbo | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
+0.097s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortTurbo | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
+0.109s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortTurbo | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
+0.120s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortTurbo | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
+0.130s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortTurbo | 2026-05-16 02:09:20 UTC | View |
| VE1EJB-0 (d158) |
+0.142s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortTurbo | 2026-05-16 02:09:21 UTC | View |
| VE1EJB-0 (d158) |
+0.159s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortTurbo | 2026-05-16 02:09:21 UTC | View |
| VE1EJB-0 (d158) |
+0.177s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortTurbo | 2026-05-16 02:09:21 UTC | View |
| VE1EJB-0 (d158) |
+0.189s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortTurbo | 2026-05-16 02:09:21 UTC | View |
| VE1EJB-0 (d158) |
+0.203s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
ShortTurbo | 2026-05-16 02:09:21 UTC | View |
| VE1EJB-0 (d158) |
+0.215s
After |
-21.0 dBm | 6.25 dB | 0 |
9d
caa0
|
LongFast | 2026-05-16 02:09:21 UTC | View |
45
Total Receptions
1
Unique Gateways