Packet #18800308 Success
TELEMETRY_APP packet from Long deck (ldec) to !ffffffff
45
Total Receptions
1
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
| Database ID: | 18800308 |
|---|---|
| Mesh Packet ID: |
0x240341e6
Used for correlation across gateways |
| Timestamp: | 2026-03-29 18:48:42 UTC |
| From Node: | Long deck (ldec) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
TELEMETRY_APP
Port: 67 |
| Gateway: | Short deck (sdec) |
|---|---|
| Channel: | LongFast |
| RSSI: | -32 dBm |
| SNR: | 6.5 dBm |
| Hop Info: |
0/3 hops
Start: 3, Limit: 3 |
| Relay Node: |
d0
ldec
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions |
Payload Data
Protocol: TELEMETRY_APP
Size: 28 bytes
Decoded:
Yes
Decoded Data:
Device Metrics:
| Battery: | 27% |
|---|---|
| Voltage: | 3.50 V |
| Air Util TX: | 0.1% |
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: | 28 bytes |
|---|---|
| Gateway: | !f1bcfa64 |
| Channel: | LongFast |
| Payload Type: | TELEMETRY_APP |
| Hop Count: | Unknown / 3 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!f1bcfa64
Node ID format |
channel_id |
LongFast
Default public channel |
packet |
MeshPacket (28 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
4053818064
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
67
TELEMETRY_APP |
enum |
decoded.payload_length |
28 bytes
|
size |
hop_limit |
3
Remaining hops allowed |
uint32 |
hop_start |
3
Initial hop limit |
uint32 |
hops_taken |
0
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-32.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
6.50 dB
Signal quality at gateway |
float |
rx_time |
1774810121
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 |
208
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774810122.7585185
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
- ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Default channel - no encryption
- ⚠ Packet visible to MQTT subscribers
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !f1bcfa64 |
| Zero Hop Policy: |
Enabled
Direct gateway connection |
| Signal Metrics: |
RSSI: -32.0 dBm SNR: 6.50 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | TELEMETRY_APP |
|---|---|
| Size: | 28 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"time": 1774810119,
"device_metrics": {
"battery_level": 27,
"voltage": 3.5,
"channel_utilization": 0.0,
"air_util_tx": 0.08141667,
"uptime_seconds": 97790
}
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!f1bcfa64",
"channel_id": "LongFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 4053818064,
"to": 4294967295,
"id": 604193254,
"rx_time": 1774810121,
"rx_snr": 6.5,
"rx_rssi": -32,
"hop_limit": 3,
"hop_start": 3,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 208,
"tx_after": 0,
"decoded": {
"portnum": 67,
"payload": "0d0774c9691215081b15000060401d0000000025c8bda63d28fefb05",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"time": 1774810119,
"device_metrics": {
"battery_level": 27,
"voltage": 3.5,
"channel_utilization": 0.0,
"air_util_tx": 0.08141667,
"uptime_seconds": 97790
},
"type": "protobuf",
"portnum": "TELEMETRY_APP",
"message_class": "Telemetry"
}
}
}
}
Raw Packet Data (28 bytes)
0d0774c9691215081b15000060401d0000000025c8bda63d28fefb05
Hex Analysis:
| Size: | 28 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 |
|---|---|---|---|---|---|---|---|---|
| Short deck (sdec) Primary |
0.000s
Reference |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:42 UTC | Current |
| Short deck (sdec) |
-0.126s
Before |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
-0.101s
Before |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
-0.068s
Before |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
-0.047s
Before |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
-0.024s
Before |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
+0.023s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
+0.047s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
+0.068s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
+0.090s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
+0.111s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
+0.132s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
MediumFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
+0.155s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
MediumFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
+0.179s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
MediumFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
+0.203s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
MediumFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
+0.226s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
MediumFast | 2026-03-29 18:48:42 UTC | View |
| Short deck (sdec) |
+0.248s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
MediumFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.270s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
MediumFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.291s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
MediumFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.312s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
MediumFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.335s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
MediumFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.359s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
MediumFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.383s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.406s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.431s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.452s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.473s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.494s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.525s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.548s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.572s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.595s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.617s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortFast | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.639s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortTurbo | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.666s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortTurbo | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.686s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortTurbo | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.709s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortTurbo | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.735s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortTurbo | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.758s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortTurbo | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.781s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortTurbo | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.803s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortTurbo | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.825s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortTurbo | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.845s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortTurbo | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.872s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
ShortTurbo | 2026-03-29 18:48:43 UTC | View |
| Short deck (sdec) |
+0.894s
After |
-32.0 dBm | 6.50 dB | 0 |
d0
ldec
|
LongFast | 2026-03-29 18:48:43 UTC | View |
45
Total Receptions
1
Unique Gateways