Packet #39790646 Success
POSITION_APP packet from VE4ACD #2 (📡) to !ffffffff
45
Total Receptions
1
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
| Database ID: | 39790646 |
|---|---|
| Mesh Packet ID: |
0xf13f4d12
Used for correlation across gateways |
| Timestamp: | 2026-05-17 00:58:41 UTC |
| From Node: | VE4ACD #2 (📡) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | Brandon South (YBR1) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -109 dBm |
| SNR: | -19.25 dBm |
| Hop Info: |
0/4 hops
Start: 4, Limit: 4 |
| Relay Node: | None |
Payload Data
Protocol: POSITION_APP
Size: 28 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 49.846682° |
|---|---|
| Longitude: | -99.968614° |
| Altitude: | 393 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: | !a2ebb39c |
| Channel: | ShortFast |
| Payload Type: | POSITION_APP |
| Hop Count: | Unknown / 4 |
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 |
!a2ebb39c
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 |
1771863616
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 |
4
Remaining hops allowed |
uint32 |
hop_start |
4
Initial hop limit |
uint32 |
hops_taken |
0
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-109.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-19.25 dB
Signal quality at gateway |
float |
rx_time |
1778979520
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 |
Not set | uint32 |
tx_after |
Not set | uint32 |
timestamp |
1778979521.7510626
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: | !a2ebb39c |
| Position Precision: | 14 bits (~1500.0m accuracy) |
| Position precision meters: | 1500.0 |
| Zero Hop Policy: |
Enabled
Direct gateway connection |
| Signal Metrics: |
RSSI: -109.0 dBm SNR: -19.25 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": 49.8466816,
"longitude": -99.9686144,
"altitude": 393,
"sats_in_view": null,
"precision_bits": 14
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!a2ebb39c",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 1771863616,
"to": 4294967295,
"id": 4047457554,
"rx_time": 1778979520,
"rx_snr": -19.25,
"rx_rssi": -109,
"hop_limit": 4,
"hop_start": 4,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 0,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d0000b61d1500006ac418890325be12096a28013d2de7036ab8010e",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 498466816,
"longitude_i": -999686144,
"altitude": 393,
"time": 1778979518,
"location_source": "LOC_MANUAL",
"timestamp": 1778640685,
"precision_bits": 14,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (28 bytes)
0d0000b61d1500006ac418890325be12096a28013d2de7036ab8010e
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 |
|---|---|---|---|---|---|---|---|---|
| Brandon South (YBR1) Primary |
0.000s
Reference |
-109.0 dBm | -19.25 dB | 0 | - | ShortFast | 2026-05-17 00:58:41 UTC | Current |
| Brandon South (YBR1) |
-0.356s
Before |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.330s
Before |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.310s
Before |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.295s
Before |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.284s
Before |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.272s
Before |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.260s
Before |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.248s
Before |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.237s
Before |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.224s
Before |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.211s
Before |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.199s
Before |
-109.0 dBm | -19.25 dB | 0 | - | MediumFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.188s
Before |
-109.0 dBm | -19.25 dB | 0 | - | MediumFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.176s
Before |
-109.0 dBm | -19.25 dB | 0 | - | MediumFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.164s
Before |
-109.0 dBm | -19.25 dB | 0 | - | MediumFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.152s
Before |
-109.0 dBm | -19.25 dB | 0 | - | MediumFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.141s
Before |
-109.0 dBm | -19.25 dB | 0 | - | MediumFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.129s
Before |
-109.0 dBm | -19.25 dB | 0 | - | MediumFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.118s
Before |
-109.0 dBm | -19.25 dB | 0 | - | MediumFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.107s
Before |
-109.0 dBm | -19.25 dB | 0 | - | MediumFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.096s
Before |
-109.0 dBm | -19.25 dB | 0 | - | MediumFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.081s
Before |
-109.0 dBm | -19.25 dB | 0 | - | MediumFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.068s
Before |
-109.0 dBm | -19.25 dB | 0 | - | ShortFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.055s
Before |
-109.0 dBm | -19.25 dB | 0 | - | ShortFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.042s
Before |
-109.0 dBm | -19.25 dB | 0 | - | ShortFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
-0.030s
Before |
-109.0 dBm | -19.25 dB | 0 | - | ShortFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.012s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.030s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.042s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.053s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.065s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.076s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortFast | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.087s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortTurbo | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.098s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortTurbo | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.113s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortTurbo | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.124s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortTurbo | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.134s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortTurbo | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.146s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortTurbo | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.158s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortTurbo | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.171s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortTurbo | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.183s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortTurbo | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.195s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortTurbo | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.208s
After |
-109.0 dBm | -19.25 dB | 0 | - | ShortTurbo | 2026-05-17 00:58:41 UTC | View |
| Brandon South (YBR1) |
+0.220s
After |
-109.0 dBm | -19.25 dB | 0 | - | LongFast | 2026-05-17 00:58:41 UTC | View |
45
Total Receptions
1
Unique Gateways