Packet #39489500 Success
POSITION_APP packet from SanPen Relay (SPRL) to !ffffffff
45
Total Receptions
1
Unique Gateways
6
Hop Count
18
Payload Bytes
Packet Information
| Database ID: | 39489500 |
|---|---|
| Mesh Packet ID: |
0x8b346f26
Used for correlation across gateways |
| Timestamp: | 2026-05-16 07:49:12 UTC |
| From Node: | SanPen Relay (SPRL) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | FourSisters (4sis) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -96 dBm |
| SNR: | 4.75 dBm |
| Hop Info: |
6/6 hops
Start: 6, Limit: 0 |
| Relay Node: |
70
Last byte of the last hop that relayed this packet |
Payload Data
Protocol: POSITION_APP
Size: 18 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 48.575283° |
|---|---|
| Longitude: | -123.443610° |
| Altitude: | 147 m |
| Precision: | 13 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: | 18 bytes |
|---|---|
| Gateway: | !a0cb14e8 |
| Channel: | ShortFast |
| Payload Type: | POSITION_APP |
| Hop Count: | 6 / 6 |
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:
⚠ 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 (18 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
2008701038
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
18 bytes
|
size |
hop_limit |
Not set | uint32 |
hop_start |
6
Initial hop limit |
uint32 |
hops_taken |
6
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-96.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
4.75 dB
Signal quality at gateway |
float |
rx_time |
1778917711
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 |
112
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1778917752.6020756
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: ~2900.0m accuracy
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Packet visible to MQTT subscribers
- ⚠ Multi-hop path visible (6 hops)
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !a0cb14e8 |
| Position Precision: | 13 bits (~2900.0m accuracy) |
| Position precision meters: | 2900.0 |
| Signal Metrics: |
RSSI: -96.0 dBm SNR: 4.75 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 18 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 48.5752832,
"longitude": -123.4436096,
"altitude": 147,
"sats_in_view": null,
"precision_bits": 13
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!a0cb14e8",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 2008701038,
"to": 4294967295,
"id": 2335469350,
"rx_time": 1778917711,
"rx_snr": 4.75,
"rx_rssi": -96,
"hop_limit": 0,
"hop_start": 6,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 112,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0000f41c1500006cb61893012801b8010d",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 485752832,
"longitude_i": -1234436096,
"altitude": 147,
"location_source": "LOC_MANUAL",
"precision_bits": 13,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (18 bytes)
0d0000f41c1500006cb61893012801b8010d
Hex Analysis:
| Size: | 18 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 |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortFast | 2026-05-16 07:49:12 UTC | Current |
| FourSisters (4sis) |
-0.402s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.336s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.322s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.307s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.292s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.279s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.265s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.252s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.238s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.225s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.211s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.199s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
MediumFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.187s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
MediumFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.175s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
MediumFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.162s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
MediumFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.151s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
MediumFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.139s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
MediumFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.127s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
MediumFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.111s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
MediumFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.088s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
MediumFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.074s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
MediumFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.060s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
MediumFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.046s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.032s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
-0.016s
Before |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.014s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.027s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.041s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.056s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.071s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.087s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.100s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortFast | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.114s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortTurbo | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.127s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortTurbo | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.145s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortTurbo | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.159s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortTurbo | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.170s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortTurbo | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.191s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortTurbo | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.206s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortTurbo | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.218s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortTurbo | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.232s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortTurbo | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.244s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortTurbo | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.256s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
ShortTurbo | 2026-05-16 07:49:12 UTC | View |
| FourSisters (4sis) |
+0.269s
After |
-96.0 dBm | 4.75 dB | 6 |
70
|
LongFast | 2026-05-16 07:49:12 UTC | View |
45
Total Receptions
1
Unique Gateways