Packet #18153617 Success
POSITION_APP packet from VC2 to !ffffffff
47
Total Receptions
3
Unique Gateways
0
Hop Count
27
Payload Bytes
Packet Information
| Database ID: | 18153617 |
|---|---|
| Mesh Packet ID: |
0x4d88b617
Used for correlation across gateways |
| Timestamp: | 2026-03-28 05:18:42 UTC |
| From Node: | VC2 (3438) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | lizfort joyce-collingwood (lfjc) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -74 dBm |
| SNR: | 2.75 dBm |
| Hop Info: |
0/7 hops
Start: 7, Limit: 7 |
| Relay Node: |
38
VC2
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: 27 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 49.238890° |
|---|---|
| Longitude: | -123.031840° |
| Altitude: | 126 m |
| Precision: | 32 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: | 27 bytes |
|---|---|
| Gateway: | !73ab1026 |
| Channel: | ShortFast |
| Payload Type: | POSITION_APP |
| Hop Count: | Unknown / 7 |
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 |
!73ab1026
Node ID format |
channel_id |
ShortFast
|
packet |
MeshPacket (27 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
862598200
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
3
POSITION_APP |
enum |
decoded.payload_length |
27 bytes
|
size |
hop_limit |
7
Remaining hops allowed |
uint32 |
hop_start |
7
Initial hop limit |
uint32 |
hops_taken |
0
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-74.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
2.75 dB
Signal quality at gateway |
float |
rx_time |
1774675116
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 |
56
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774675122.5841606
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
- ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Packet visible to MQTT subscribers
- ⚠ Full GPS precision shared
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !73ab1026 |
| Position Precision: | 32 bits (~1.0m accuracy) |
| Position precision meters: | 1.0 |
| Zero Hop Policy: |
Enabled
Direct gateway connection |
| Signal Metrics: |
RSSI: -74.0 dBm SNR: 2.75 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | POSITION_APP |
|---|---|
| Size: | 27 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"latitude": 49.23889,
"longitude": -123.03184,
"altitude": 126,
"sats_in_view": null,
"precision_bits": 32
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!73ab1026",
"channel_id": "ShortFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 862598200,
"to": 4294967295,
"id": 1300805143,
"rx_time": 1774675116,
"rx_snr": 2.75,
"rx_rssi": -74,
"hop_limit": 7,
"hop_start": 7,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 56,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0d2442591d15c0d4aab6187e256a64c76928017800800100b80120",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 492388900,
"longitude_i": -1230318400,
"altitude": 126,
"time": 1774675050,
"location_source": "LOC_MANUAL",
"ground_speed": 0,
"ground_track": 0,
"precision_bits": 32,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (27 bytes)
0d2442591d15c0d4aab6187e256a64c76928017800800100b80120
Hex Analysis:
| Size: | 27 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 |
|---|---|---|---|---|---|---|---|---|
| lizfort joyce-collingwood (lfjc) Primary |
0.000s
Reference |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortFast | 2026-03-28 05:18:42 UTC | Current |
| lizfort joyce-collingwood (lfjc) |
-1.849s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:40 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.832s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:40 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.817s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:40 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.802s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:40 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.784s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:40 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.768s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:40 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.747s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:40 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.730s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:40 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.716s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:40 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.699s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:40 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.336s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:41 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.323s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
MediumFast | 2026-03-28 05:18:41 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.308s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
MediumFast | 2026-03-28 05:18:41 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.288s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
MediumFast | 2026-03-28 05:18:41 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.270s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
MediumFast | 2026-03-28 05:18:41 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.233s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
MediumFast | 2026-03-28 05:18:41 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.219s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
MediumFast | 2026-03-28 05:18:41 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.205s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
MediumFast | 2026-03-28 05:18:41 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-1.185s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
MediumFast | 2026-03-28 05:18:41 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.794s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
MediumFast | 2026-03-28 05:18:41 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.780s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
MediumFast | 2026-03-28 05:18:41 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.393s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
MediumFast | 2026-03-28 05:18:42 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.376s
Before |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortFast | 2026-03-28 05:18:42 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.021s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortFast | 2026-03-28 05:18:42 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.040s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortFast | 2026-03-28 05:18:42 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.056s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortFast | 2026-03-28 05:18:42 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.076s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortFast | 2026-03-28 05:18:42 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.695s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortFast | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.712s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortFast | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.724s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortFast | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.736s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortFast | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.750s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortFast | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.762s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortTurbo | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.773s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortTurbo | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.785s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortTurbo | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+1.141s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortTurbo | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+1.156s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortTurbo | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+1.168s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortTurbo | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+1.178s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortTurbo | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+1.195s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortTurbo | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+1.208s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortTurbo | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+1.225s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortTurbo | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+1.235s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
ShortTurbo | 2026-03-28 05:18:43 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+1.246s
After |
-74.0 dBm | 2.75 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:43 UTC | View |
| el8010_1 (e108) |
+1.257s
After |
-135.0 dBm | -13.00 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:43 UTC | View |
| FourSisters (4sis) |
+1.268s
After |
-109.0 dBm | -2.25 dB | 0 |
38
VC2
|
LongFast | 2026-03-28 05:18:43 UTC | View |
47
Total Receptions
3
Unique Gateways