Packet #17803186 Success
TELEMETRY_APP packet from Meshtastic f818 (f818) to !ffffffff
45
Total Receptions
1
Unique Gateways
1
Hop Count
28
Payload Bytes
Packet Information
| Database ID: | 17803186 |
|---|---|
| Mesh Packet ID: |
0xd10cc3f5
Used for correlation across gateways |
| Timestamp: | 2026-03-27 10:00:51 UTC |
| From Node: | Meshtastic f818 (f818) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
TELEMETRY_APP
Port: 67 |
| Gateway: | JPG 37fc (JPGx) |
|---|---|
| Channel: | LongFast |
| RSSI: | -144 dBm |
| SNR: | -17.0 dBm |
| Hop Info: |
1/4 hops
Start: 4, Limit: 3 |
| Relay Node: |
ab
PBR1
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: | 98% |
|---|---|
| Voltage: | 4.16 V |
| Channel Usage: | 1.9% |
| Air Util TX: | 1.3% |
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: | !f71e37fc |
| Channel: | LongFast |
| Payload Type: | TELEMETRY_APP |
| Hop Count: | 1 / 4 |
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:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!f71e37fc
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 |
1128069144
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 |
4
Initial hop limit |
uint32 |
hops_taken |
1
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-144.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-17.00 dB
Signal quality at gateway |
float |
rx_time |
1774605650
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 |
171
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774605651.865613
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:
- ⚠ Visible to all nodes on channel
- ⚠ Default channel - no encryption
- ⚠ Packet visible to MQTT subscribers
- ⚠ Multi-hop path visible (1 hops)
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !f71e37fc |
| Signal Metrics: |
RSSI: -144.0 dBm SNR: -17.00 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": 1774605619,
"device_metrics": {
"battery_level": 98,
"voltage": 4.163,
"channel_utilization": 1.89,
"air_util_tx": 1.3152223,
"uptime_seconds": 170724
}
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!f71e37fc",
"channel_id": "LongFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 1128069144,
"to": 4294967295,
"id": 3507274741,
"rx_time": 1774605650,
"rx_snr": -17.0,
"rx_rssi": -144,
"hop_limit": 3,
"hop_start": 4,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 171,
"tx_after": 0,
"decoded": {
"portnum": 67,
"payload": "0d3355c66912150862154c3785401d85ebf13f253459a83f28e4b50a",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"time": 1774605619,
"device_metrics": {
"battery_level": 98,
"voltage": 4.163,
"channel_utilization": 1.89,
"air_util_tx": 1.3152223,
"uptime_seconds": 170724
},
"type": "protobuf",
"portnum": "TELEMETRY_APP",
"message_class": "Telemetry"
}
}
}
}
Raw Packet Data (28 bytes)
0d3355c66912150862154c3785401d85ebf13f253459a83f28e4b50a
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 |
|---|---|---|---|---|---|---|---|---|
| JPG 37fc (JPGx) Primary |
0.000s
Reference |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:51 UTC | Current |
| JPG 37fc (JPGx) |
-0.142s
Before |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:51 UTC | View |
| JPG 37fc (JPGx) |
-0.096s
Before |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:51 UTC | View |
| JPG 37fc (JPGx) |
-0.069s
Before |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:51 UTC | View |
| JPG 37fc (JPGx) |
-0.043s
Before |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:51 UTC | View |
| JPG 37fc (JPGx) |
-0.021s
Before |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:51 UTC | View |
| JPG 37fc (JPGx) |
+0.021s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:51 UTC | View |
| JPG 37fc (JPGx) |
+0.044s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:51 UTC | View |
| JPG 37fc (JPGx) |
+0.068s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:51 UTC | View |
| JPG 37fc (JPGx) |
+0.092s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:51 UTC | View |
| JPG 37fc (JPGx) |
+0.115s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:51 UTC | View |
| JPG 37fc (JPGx) |
+0.137s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
MediumFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.158s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
MediumFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.179s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
MediumFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.200s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
MediumFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.221s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
MediumFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.243s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
MediumFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.264s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
MediumFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.285s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
MediumFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.319s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
MediumFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.348s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
MediumFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.377s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
MediumFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.404s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.430s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.456s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.481s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.509s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.536s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.565s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.594s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.618s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.645s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.672s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortFast | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.697s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortTurbo | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.725s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortTurbo | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.755s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortTurbo | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.782s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortTurbo | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.807s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortTurbo | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.833s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortTurbo | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.860s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortTurbo | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.891s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortTurbo | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.922s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortTurbo | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.952s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortTurbo | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+0.979s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
ShortTurbo | 2026-03-27 10:00:52 UTC | View |
| JPG 37fc (JPGx) |
+1.007s
After |
-144.0 dBm | -17.00 dB | 1 |
ab
PBR1
|
LongFast | 2026-03-27 10:00:52 UTC | View |
45
Total Receptions
1
Unique Gateways