Packet #17805470 Success
TELEMETRY_APP packet from Duncan Downtown LF20 (DDT) to !ffffffff
45
Total Receptions
1
Unique Gateways
5
Hop Count
27
Payload Bytes
Packet Information
| Database ID: | 17805470 |
|---|---|
| Mesh Packet ID: |
0xcf91b878
Used for correlation across gateways |
| Timestamp: | 2026-03-27 10:10:15 UTC |
| From Node: | Duncan Downtown LF20 (DDT) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
TELEMETRY_APP
Port: 67 |
| Gateway: | FourSisters (4sis) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -106 dBm |
| SNR: | -0.75 dBm |
| Hop Info: |
5/5 hops
Start: 5, Limit: 0 |
| Relay Node: |
63
Last byte of the last hop that relayed this packet |
Payload Data
Protocol: TELEMETRY_APP
Size: 27 bytes
Decoded:
Yes
Decoded Data:
Device Metrics:
| Battery: | 39% |
|---|---|
| Voltage: | 3.62 V |
| Channel Usage: | 2.5% |
| Air Util TX: | 0.6% |
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: | 27 bytes |
|---|---|
| Gateway: | !a0cb14e8 |
| Channel: | ShortFast |
| Payload Type: | TELEMETRY_APP |
| Hop Count: | 5 / 5 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 1 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 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 |
ShortFast
|
packet |
MeshPacket (27 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 |
27 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 |
-106.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-0.75 dB
Signal quality at gateway |
float |
rx_time |
1774606210
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 |
99
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774606215.114392
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
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: -106.0 dBm SNR: -0.75 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | TELEMETRY_APP |
|---|---|
| Size: | 27 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"time": 1774606201,
"device_metrics": {
"battery_level": 39,
"voltage": 3.623,
"channel_utilization": 2.5433333,
"air_util_tx": 0.6059167,
"uptime_seconds": 3601
}
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!a0cb14e8",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 3662964436,
"to": 4294967295,
"id": 3482433656,
"rx_time": 1774606210,
"rx_snr": -0.75,
"rx_rssi": -106,
"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": 99,
"tx_after": 0,
"decoded": {
"portnum": 67,
"payload": "0d7957c66912140827153bdf67401df9c52240255b1d1b3f28911c",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"time": 1774606201,
"device_metrics": {
"battery_level": 39,
"voltage": 3.623,
"channel_utilization": 2.5433333,
"air_util_tx": 0.6059167,
"uptime_seconds": 3601
},
"type": "protobuf",
"portnum": "TELEMETRY_APP",
"message_class": "Telemetry"
}
}
}
}
Raw Packet Data (27 bytes)
0d7957c66912140827153bdf67401df9c52240255b1d1b3f28911c
Hex Analysis:
| Size: | 27 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 |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortFast | 2026-03-27 10:10:15 UTC | Current |
| FourSisters (4sis) |
-0.617s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.589s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.562s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.536s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.515s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.495s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.472s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.448s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.426s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.391s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.369s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.349s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
MediumFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.328s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
MediumFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.308s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
MediumFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.286s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
MediumFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.263s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
MediumFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.240s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
MediumFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.217s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
MediumFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.195s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
MediumFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.174s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
MediumFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.154s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
MediumFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.133s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
MediumFast | 2026-03-27 10:10:14 UTC | View |
| FourSisters (4sis) |
-0.111s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortFast | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
-0.088s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortFast | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
-0.066s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortFast | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
-0.043s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortFast | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
-0.021s
Before |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortFast | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.021s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortFast | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.041s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortFast | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.063s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortFast | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.088s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortFast | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.110s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortFast | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.133s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortTurbo | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.154s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortTurbo | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.175s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortTurbo | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.196s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortTurbo | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.217s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortTurbo | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.239s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortTurbo | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.271s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortTurbo | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.294s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortTurbo | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.316s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortTurbo | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.337s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortTurbo | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.358s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
ShortTurbo | 2026-03-27 10:10:15 UTC | View |
| FourSisters (4sis) |
+0.379s
After |
-106.0 dBm | -0.75 dB | 5 |
63
|
LongFast | 2026-03-27 10:10:15 UTC | View |
45
Total Receptions
1
Unique Gateways