Packet #17965922 Success
TELEMETRY_APP packet from Duncan Downtown LF20 (DDT) to !ffffffff
45
Total Receptions
1
Unique Gateways
5
Hop Count
29
Payload Bytes
Packet Information
| Database ID: | 17965922 |
|---|---|
| Mesh Packet ID: |
0xf3d53069
Used for correlation across gateways |
| Timestamp: | 2026-03-27 18:35:29 UTC |
| From Node: | Duncan Downtown LF20 (DDT) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
TELEMETRY_APP
Port: 67 |
| Gateway: | FourSisters (4sis) |
|---|---|
| Channel: | MediumFast |
| RSSI: | -99 dBm |
| SNR: | -0.75 dBm |
| Hop Info: |
5/5 hops
Start: 5, Limit: 0 |
| Relay Node: |
70
Last byte of the last hop that relayed this packet |
Payload Data
Protocol: TELEMETRY_APP
Size: 29 bytes
Decoded:
Yes
Decoded Data:
Environment Metrics:
| Temperature: | 12.6°C |
|---|---|
| Humidity: | 0.0% |
| Pressure: | 1024.4 hPa |
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: | 29 bytes |
|---|---|
| Gateway: | !a0cb14e8 |
| Channel: | MediumFast |
| Payload Type: | TELEMETRY_APP |
| Hop Count: | 5 / 5 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 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 |
!a0cb14e8
Node ID format |
channel_id |
MediumFast
|
packet |
MeshPacket (29 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
3662964436
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
67
TELEMETRY_APP |
enum |
decoded.payload_length |
29 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 |
-99.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-0.75 dB
Signal quality at gateway |
float |
rx_time |
1774636517
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 |
112
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774636529.634823
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
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Packet visible to MQTT subscribers
- ⚠ Multi-hop path visible (5 hops)
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !a0cb14e8 |
| Signal Metrics: |
RSSI: -99.0 dBm SNR: -0.75 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | TELEMETRY_APP |
|---|---|
| Size: | 29 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"time": 1774636506,
"environment_metrics": {
"temperature": 12.601185,
"relative_humidity": 0.000100694175,
"barometric_pressure": 1024.3887,
"gas_resistance": 1949.0911,
"iaq": 0
}
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!a0cb14e8",
"channel_id": "MediumFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 3662964436,
"to": 4294967295,
"id": 4090835049,
"rx_time": 1774636517,
"rx_snr": -0.75,
"rx_rssi": -99,
"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": 112,
"tx_after": 0,
"decoded": {
"portnum": 67,
"payload": "0ddacdc6691a160d749e494115c62bd3381d700c804425eaa2f3443800",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"time": 1774636506,
"environment_metrics": {
"temperature": 12.601185,
"relative_humidity": 0.000100694175,
"barometric_pressure": 1024.3887,
"gas_resistance": 1949.0911,
"iaq": 0
},
"type": "protobuf",
"portnum": "TELEMETRY_APP",
"message_class": "Telemetry"
}
}
}
}
Raw Packet Data (29 bytes)
0ddacdc6691a160d749e494115c62bd3381d700c804425eaa2f3443800
Hex Analysis:
| Size: | 29 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 |
|---|---|---|---|---|---|---|---|---|
| FourSisters (4sis) Primary |
0.000s
Reference |
-99.0 dBm | -0.75 dB | 5 |
70
|
MediumFast | 2026-03-27 18:35:29 UTC | Current |
| FourSisters (4sis) |
-0.400s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.362s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.337s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.308s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.288s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.266s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.242s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.220s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.198s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.176s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.156s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.135s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
MediumFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.114s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
MediumFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.091s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
MediumFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.068s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
MediumFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.045s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
MediumFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
-0.022s
Before |
-99.0 dBm | -0.75 dB | 5 |
70
|
MediumFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.021s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
MediumFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.042s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
MediumFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.062s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
MediumFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.084s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
MediumFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.107s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.131s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.153s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.175s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.196s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.218s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.239s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.261s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.284s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.307s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.333s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortFast | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.354s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortTurbo | 2026-03-27 18:35:29 UTC | View |
| FourSisters (4sis) |
+0.374s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortTurbo | 2026-03-27 18:35:30 UTC | View |
| FourSisters (4sis) |
+0.395s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortTurbo | 2026-03-27 18:35:30 UTC | View |
| FourSisters (4sis) |
+0.415s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortTurbo | 2026-03-27 18:35:30 UTC | View |
| FourSisters (4sis) |
+0.437s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortTurbo | 2026-03-27 18:35:30 UTC | View |
| FourSisters (4sis) |
+0.461s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortTurbo | 2026-03-27 18:35:30 UTC | View |
| FourSisters (4sis) |
+0.489s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortTurbo | 2026-03-27 18:35:30 UTC | View |
| FourSisters (4sis) |
+0.513s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortTurbo | 2026-03-27 18:35:30 UTC | View |
| FourSisters (4sis) |
+0.534s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortTurbo | 2026-03-27 18:35:30 UTC | View |
| FourSisters (4sis) |
+0.554s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortTurbo | 2026-03-27 18:35:30 UTC | View |
| FourSisters (4sis) |
+0.575s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
ShortTurbo | 2026-03-27 18:35:30 UTC | View |
| FourSisters (4sis) |
+0.595s
After |
-99.0 dBm | -0.75 dB | 5 |
70
|
LongFast | 2026-03-27 18:35:30 UTC | View |
45
Total Receptions
1
Unique Gateways