Packet #18001823 Success
POSITION_APP packet from Meshtastic NJF Base 🛰 (🛰) to !ffffffff
46
Total Receptions
2
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
| Database ID: | 18001823 |
|---|---|
| Mesh Packet ID: |
0xf714ae08
Used for correlation across gateways |
| Timestamp: | 2026-03-27 20:40:16 UTC |
| From Node: | Meshtastic NJF Base 🛰 (🛰) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | Mechanicus Cadia (M3) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -125 dBm |
| SNR: | -15.5 dBm |
| Hop Info: |
0/3 hops
Start: 3, Limit: 3 |
| Relay Node: |
f2
🛰
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: 28 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 49.925325° |
|---|---|
| Longitude: | -97.163674° |
| Altitude: | 232 m |
| Precision: | 14 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: | 28 bytes |
|---|---|
| Gateway: | !4359649c |
| Channel: | ShortFast |
| Payload Type: | POSITION_APP |
| Hop Count: | Unknown / 3 |
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:
âš Visible to all nodes on channel
âš Packet visible to MQTT subscribers
+ 1 more...
âš Visible to all nodes on channel
âš Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!4359649c
Node ID format |
channel_id |
ShortFast
|
packet |
MeshPacket (28 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
3559411698
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_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 |
-125.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-15.50 dB
Signal quality at gateway |
float |
rx_time |
1774644009
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 |
242
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774644016.503851
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: ~1500.0m accuracy
- ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
- âš Visible to all nodes on channel
- âš Packet visible to MQTT subscribers
- âš RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !4359649c |
| Position Precision: | 14 bits (~1500.0m accuracy) |
| Position precision meters: | 1500.0 |
| Zero Hop Policy: |
Enabled
Direct gateway connection |
| Signal Metrics: |
RSSI: -125.0 dBm SNR: -15.50 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 28 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 49.9253248,
"longitude": -97.1636736,
"altitude": 232,
"sats_in_view": null,
"precision_bits": 14
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!4359649c",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 3559411698,
"to": 4294967295,
"id": 4145327624,
"rx_time": 1774644009,
"rx_snr": -15.5,
"rx_rssi": -125,
"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": 242,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0000c21d15000016c618e801251debc66928017800800100b8010e",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 499253248,
"longitude_i": -971636736,
"altitude": 232,
"time": 1774643997,
"location_source": "LOC_MANUAL",
"ground_speed": 0,
"ground_track": 0,
"precision_bits": 14,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (28 bytes)
0d0000c21d15000016c618e801251debc66928017800800100b8010e
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 |
|---|---|---|---|---|---|---|---|---|
| Mechanicus Cadia (M3) Primary |
0.000s
Reference |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortFast | 2026-03-27 20:40:16 UTC | Current |
| Mechanicus Cadia (M3) |
-1.437s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-1.077s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-1.063s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-1.046s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-1.028s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-1.013s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-1.001s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-0.985s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-0.597s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-0.582s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-0.570s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-0.558s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
MediumFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-0.545s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
MediumFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-0.533s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
MediumFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-0.517s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
MediumFast | 2026-03-27 20:40:15 UTC | View |
| Mechanicus Cadia (M3) |
-0.502s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
MediumFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
-0.488s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
MediumFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
-0.473s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
MediumFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
-0.092s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
MediumFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Alpha (M1) |
-0.077s
Before |
-117.0 dBm | -9.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
-0.063s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
MediumFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
-0.046s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
MediumFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
-0.030s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
MediumFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
-0.014s
Before |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
+0.021s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
+0.044s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
+0.059s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
+0.088s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
+0.099s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
+0.115s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
+0.129s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
+0.142s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
+0.159s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortFast | 2026-03-27 20:40:16 UTC | View |
| Mechanicus Cadia (M3) |
+0.556s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortTurbo | 2026-03-27 20:40:17 UTC | View |
| Mechanicus Cadia (M3) |
+0.568s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortTurbo | 2026-03-27 20:40:17 UTC | View |
| Mechanicus Cadia (M3) |
+0.580s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortTurbo | 2026-03-27 20:40:17 UTC | View |
| Mechanicus Cadia (M3) |
+0.949s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortTurbo | 2026-03-27 20:40:17 UTC | View |
| Mechanicus Cadia (M3) |
+0.961s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortTurbo | 2026-03-27 20:40:17 UTC | View |
| Mechanicus Cadia (M3) |
+0.973s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortTurbo | 2026-03-27 20:40:17 UTC | View |
| Mechanicus Cadia (M3) |
+0.987s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortTurbo | 2026-03-27 20:40:17 UTC | View |
| Mechanicus Cadia (M3) |
+1.003s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortTurbo | 2026-03-27 20:40:17 UTC | View |
| Mechanicus Cadia (M3) |
+1.024s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortTurbo | 2026-03-27 20:40:17 UTC | View |
| Mechanicus Cadia (M3) |
+1.037s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortTurbo | 2026-03-27 20:40:17 UTC | View |
| Mechanicus Cadia (M3) |
+1.054s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
ShortTurbo | 2026-03-27 20:40:17 UTC | View |
| Mechanicus Cadia (M3) |
+1.478s
After |
-125.0 dBm | -15.50 dB | 0 |
f2
🛰
|
LongFast | 2026-03-27 20:40:17 UTC | View |
46
Total Receptions
2
Unique Gateways