Packet #39809935 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: | 39809935 |
|---|---|
| Mesh Packet ID: |
0xb6bcf914
Used for correlation across gateways |
| Timestamp: | 2026-05-17 02:10:43 UTC |
| From Node: | VE4ACD #2 (📡) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | Brandon South (YBR1) |
|---|---|
| Channel: | LongFast |
| RSSI: | -108 dBm |
| SNR: | -18.25 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: | LongFast |
| Payload Type: | POSITION_APP |
| Hop Count: | Unknown / 4 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 2 more...
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 2 more...
Exposure Risks:
âš Visible to all nodes on channel
âš Default channel - no encryption
+ 2 more...
âš Visible to all nodes on channel
âš Default channel - no encryption
+ 2 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!a2ebb39c
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 |
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 |
-108.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-18.25 dB
Signal quality at gateway |
float |
rx_time |
1778983843
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 |
1778983843.8253222
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
- ✓ Reduced position precision: ~1500.0m accuracy
- ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
- âš Visible to all nodes on channel
- âš Default channel - no encryption
- 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: -108.0 dBm SNR: -18.25 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": "LongFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 1771863616,
"to": 4294967295,
"id": 3065837844,
"rx_time": 1778983843,
"rx_snr": -18.25,
"rx_rssi": -108,
"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": "0d0000b61d1500006ac418890325a023096a28013d2de7036ab8010e",
"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": 1778983840,
"location_source": "LOC_MANUAL",
"timestamp": 1778640685,
"precision_bits": 14,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (28 bytes)
0d0000b61d1500006ac418890325a023096a28013d2de7036ab8010e
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 |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:43 UTC | Current |
| Brandon South (YBR1) |
-0.080s
Before |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
-0.055s
Before |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
-0.044s
Before |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
-0.033s
Before |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
-0.022s
Before |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
-0.011s
Before |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.011s
After |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.023s
After |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.036s
After |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.049s
After |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.061s
After |
-108.0 dBm | -18.25 dB | 0 | - | MediumFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.080s
After |
-108.0 dBm | -18.25 dB | 0 | - | MediumFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.092s
After |
-108.0 dBm | -18.25 dB | 0 | - | MediumFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.104s
After |
-108.0 dBm | -18.25 dB | 0 | - | MediumFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.116s
After |
-108.0 dBm | -18.25 dB | 0 | - | MediumFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.127s
After |
-108.0 dBm | -18.25 dB | 0 | - | MediumFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.138s
After |
-108.0 dBm | -18.25 dB | 0 | - | MediumFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.149s
After |
-108.0 dBm | -18.25 dB | 0 | - | MediumFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.160s
After |
-108.0 dBm | -18.25 dB | 0 | - | MediumFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.171s
After |
-108.0 dBm | -18.25 dB | 0 | - | MediumFast | 2026-05-17 02:10:43 UTC | View |
| Brandon South (YBR1) |
+0.182s
After |
-108.0 dBm | -18.25 dB | 0 | - | MediumFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.193s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.206s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.218s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.231s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.243s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.257s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.269s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.281s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.303s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.320s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.332s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortFast | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.341s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortTurbo | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.352s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortTurbo | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.363s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortTurbo | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.375s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortTurbo | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.387s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortTurbo | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.399s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortTurbo | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.411s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortTurbo | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.423s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortTurbo | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.436s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortTurbo | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.451s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortTurbo | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.463s
After |
-108.0 dBm | -18.25 dB | 0 | - | ShortTurbo | 2026-05-17 02:10:44 UTC | View |
| Brandon South (YBR1) |
+0.474s
After |
-108.0 dBm | -18.25 dB | 0 | - | LongFast | 2026-05-17 02:10:44 UTC | View |
45
Total Receptions
1
Unique Gateways