Packet #17790147 Success
POSITION_APP packet from Meshtastic NJF Base 🛰 (🛰) to !ffffffff
47
Total Receptions
3
Unique Gateways
1
Hop Count
28
Payload Bytes
Packet Information
| Database ID: | 17790147 |
|---|---|
| Mesh Packet ID: |
0x859b81fd
Used for correlation across gateways |
| Timestamp: | 2026-03-27 09:16:04 UTC |
| From Node: | Meshtastic NJF Base 🛰 (🛰) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | Mechanicus Dominus (M4) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -100 dBm |
| SNR: | -14.0 dBm |
| Hop Info: |
1/3 hops
Start: 3, Limit: 2 |
| Relay Node: |
fd
Last byte of the last hop that relayed this packet |
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: | !6984d8b8 |
| Channel: | ShortFast |
| Payload Type: | POSITION_APP |
| Hop Count: | 1 / 3 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 2 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 2 more...
Exposure Risks:
âš Visible to all nodes on channel
âš Packet visible to MQTT subscribers
+ 2 more...
âš Visible to all nodes on channel
âš Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!6984d8b8
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 |
2
Remaining hops allowed |
uint32 |
hop_start |
3
Initial hop limit |
uint32 |
hops_taken |
1
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-100.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-14.00 dB
Signal quality at gateway |
float |
rx_time |
1774602963
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 |
253
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774602964.5903962
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
Exposure Risks:
- âš Visible to all nodes on channel
- âš Packet visible to MQTT subscribers
- âš Multi-hop path visible (1 hops)
- âš RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !6984d8b8 |
| Position Precision: | 14 bits (~1500.0m accuracy) |
| Position precision meters: | 1500.0 |
| Signal Metrics: |
RSSI: -100.0 dBm SNR: -14.00 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": "!6984d8b8",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 3559411698,
"to": 4294967295,
"id": 2241561085,
"rx_time": 1774602963,
"rx_snr": -14.0,
"rx_rssi": -100,
"hop_limit": 2,
"hop_start": 3,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 253,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0000c21d15000016c618e80125c44ac66928017800800100b8010e",
"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": 1774602948,
"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)
0d0000c21d15000016c618e80125c44ac66928017800800100b8010e
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 Dominus (M4) Primary |
0.000s
Reference |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortFast | 2026-03-27 09:16:04 UTC | Current |
| Mechanicus Dominus (M4) |
-0.323s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.284s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.269s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.253s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.236s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.225s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.214s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.204s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.193s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.182s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.170s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.157s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
MediumFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.145s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
MediumFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.128s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
MediumFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.112s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
MediumFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.100s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
MediumFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.088s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
MediumFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.077s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
MediumFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.044s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
MediumFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.033s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
MediumFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.022s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
MediumFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
-0.011s
Before |
-100.0 dBm | -14.00 dB | 1 |
fd
|
MediumFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.012s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.032s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.044s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.057s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.068s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.088s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.099s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.110s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.121s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.132s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.143s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortTurbo | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.154s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortTurbo | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.165s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortTurbo | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.175s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortTurbo | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.187s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortTurbo | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.199s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortTurbo | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.212s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortTurbo | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.224s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortTurbo | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.235s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortTurbo | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.247s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortTurbo | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.259s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
ShortTurbo | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Dominus (M4) |
+0.271s
After |
-100.0 dBm | -14.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Alpha (M1) |
+0.315s
After |
-120.0 dBm | -13.00 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
| Mechanicus Cadia (M3) |
+0.326s
After |
-127.0 dBm | -16.50 dB | 1 |
fd
|
LongFast | 2026-03-27 09:16:04 UTC | View |
47
Total Receptions
3
Unique Gateways