Packet #17795888 Success
POSITION_APP packet from VC1 Joyce 🗼 (VC1) to !ffffffff
45
Total Receptions
1
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
| Database ID: | 17795888 |
|---|---|
| Mesh Packet ID: |
0x310aad6a
Used for correlation across gateways |
| Timestamp: | 2026-03-27 09:37:37 UTC |
| From Node: | VC1 Joyce 🗼 (VC1) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
POSITION_APP
Port: 3 |
| Gateway: | lizfort joyce-collingwood (lfjc) |
|---|---|
| Channel: | ShortFast |
| RSSI: | -76 dBm |
| SNR: | 0.25 dBm |
| Hop Info: |
0/7 hops
Start: 7, Limit: 7 |
| Relay Node: |
fc
VC1
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: 28 bytes
Decoded:
Yes
Decoded Data:
| Latitude: | 49.238980° |
|---|---|
| Longitude: | -123.031650° |
| Altitude: | 156 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: | 28 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:
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 |
!73ab1026
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 |
1128196860
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 |
7
Remaining hops allowed |
uint32 |
hop_start |
7
Initial hop limit |
uint32 |
hops_taken |
0
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-76.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
0.25 dB
Signal quality at gateway |
float |
rx_time |
1774604256
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 |
252
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1774604257.8480973
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:
- âš Visible to all nodes on channel
- âš Packet visible to MQTT subscribers
- âš Full GPS precision shared
- âš 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: -76.0 dBm SNR: 0.25 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": 49.23898,
"longitude": -123.03165,
"altitude": 156,
"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": 1128196860,
"to": 4294967295,
"id": 822783338,
"rx_time": 1774604256,
"rx_snr": 0.25,
"rx_rssi": -76,
"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": 252,
"tx_after": 0,
"decoded": {
"portnum": 3,
"payload": "0da845591d152cdcaab6189c01254e4fc66928017800800100b80120",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"latitude_i": 492389800,
"longitude_i": -1230316500,
"altitude": 156,
"time": 1774604110,
"location_source": "LOC_MANUAL",
"ground_speed": 0,
"ground_track": 0,
"precision_bits": 32,
"type": "protobuf",
"portnum": "POSITION_APP",
"message_class": "Position"
}
}
}
}
Raw Packet Data (28 bytes)
0da845591d152cdcaab6189c01254e4fc66928017800800100b80120
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 |
|---|---|---|---|---|---|---|---|---|
| lizfort joyce-collingwood (lfjc) Primary |
0.000s
Reference |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortFast | 2026-03-27 09:37:37 UTC | Current |
| lizfort joyce-collingwood (lfjc) |
-0.360s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.349s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.336s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.324s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.313s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.303s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.292s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.281s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.271s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.260s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.249s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.238s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
MediumFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.226s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
MediumFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.214s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
MediumFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.196s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
MediumFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.183s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
MediumFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.172s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
MediumFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.160s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
MediumFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.148s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
MediumFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.136s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
MediumFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.125s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
MediumFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.114s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
MediumFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.103s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.093s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.081s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.071s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.060s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.049s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.037s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.025s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
-0.012s
Before |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.012s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortFast | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.024s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortTurbo | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.035s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortTurbo | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.047s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortTurbo | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.059s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortTurbo | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.069s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortTurbo | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.080s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortTurbo | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.091s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortTurbo | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.102s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortTurbo | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.113s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortTurbo | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.124s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortTurbo | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.135s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
ShortTurbo | 2026-03-27 09:37:37 UTC | View |
| lizfort joyce-collingwood (lfjc) |
+0.147s
After |
-76.0 dBm | 0.25 dB | 0 |
fc
VC1
|
LongFast | 2026-03-27 09:37:37 UTC | View |
45
Total Receptions
1
Unique Gateways