Packet #18023411 Success

POSITION_APP packet from CLY-B 0dde (0dde) to !ffffffff

45
Total Receptions
1
Unique Gateways
4
Hop Count
28
Payload Bytes
Packet Information
Database ID: 18023411
Mesh Packet ID: 0x19b29ab6
Used for correlation across gateways
Timestamp: 2026-03-27 21:56:47 UTC
From Node: CLY-B 0dde (0dde)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: FLAN-F208 (FLAN)
Channel: ShortFast
RSSI: -40 dBm
SNR: 6.5 dBm
Hop Info: 4/6 hops
Start: 6, Limit: 2
Relay Node: 96 FLAM
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:43.594547°
Longitude:-79.613133°
Altitude:153 m
Precision:13 bits
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysis
Packet Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)
Total Size:28 bytes
Gateway:!433af208
Channel:ShortFast
Payload Type:POSITION_APP
Hop Count:4 / 6
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ 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...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !433af208
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

FieldValueType
from 3982953950
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 2
Remaining hops allowed
uint32
hop_start 6
Initial hop limit
uint32
hops_taken 4
Calculated: hop_start - hop_limit
derived
rx_rssi -40.0 dBm
Signal strength at gateway
int32
rx_snr 6.50 dB
Signal quality at gateway
float
rx_time 1774648602
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 150
Relay node ID
uint32
tx_after Not set uint32
timestamp 1774648607.0158536
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 (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !433af208
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -40.0 dBm
SNR: 6.50 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": 43.5945472, "longitude": -79.6131328, "altitude": 153, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!433af208", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3982953950, "to": 4294967295, "id": 431135414, "rx_time": 1774648602, "rx_snr": 6.5, "rx_rssi": -40, "hop_limit": 2, "hop_start": 6, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 150, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000fc191500008cd018990125ecfcc66928037801800144b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 435945472, "longitude_i": -796131328, "altitude": 153, "time": 1774648556, "location_source": "LOC_EXTERNAL", "ground_speed": 1, "ground_track": 68, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d0000fc191500008cd018990125ecfcc66928037801800144b8010d
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 packet
Correlation: Using Mesh Packet ID
Reception Locations
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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
FLAN-F208 (FLAN) Primary 0.000s
Reference
-40.0 dBm 6.50 dB 4 96 FLAM ShortFast 2026-03-27 21:56:47 UTC Current
FLAN-F208 (FLAN) -2.803s
Before
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.759s
Before
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.352s
Before
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.342s
Before
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.331s
Before
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.314s
Before
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.304s
Before
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.286s
Before
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.266s
Before
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.253s
Before
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.240s
Before
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.224s
Before
-40.0 dBm 6.50 dB 4 96 FLAM MediumFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.209s
Before
-40.0 dBm 6.50 dB 4 96 FLAM MediumFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.194s
Before
-40.0 dBm 6.50 dB 4 96 FLAM MediumFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -2.183s
Before
-40.0 dBm 6.50 dB 4 96 FLAM MediumFast 2026-03-27 21:56:44 UTC View
FLAN-F208 (FLAN) -1.761s
Before
-40.0 dBm 6.50 dB 4 96 FLAM MediumFast 2026-03-27 21:56:45 UTC View
FLAN-F208 (FLAN) -1.747s
Before
-40.0 dBm 6.50 dB 4 96 FLAM MediumFast 2026-03-27 21:56:45 UTC View
FLAN-F208 (FLAN) -1.733s
Before
-40.0 dBm 6.50 dB 4 96 FLAM MediumFast 2026-03-27 21:56:45 UTC View
FLAN-F208 (FLAN) -1.248s
Before
-40.0 dBm 6.50 dB 4 96 FLAM MediumFast 2026-03-27 21:56:45 UTC View
FLAN-F208 (FLAN) -0.870s
Before
-40.0 dBm 6.50 dB 4 96 FLAM MediumFast 2026-03-27 21:56:46 UTC View
FLAN-F208 (FLAN) -0.517s
Before
-40.0 dBm 6.50 dB 4 96 FLAM MediumFast 2026-03-27 21:56:46 UTC View
FLAN-F208 (FLAN) -0.506s
Before
-40.0 dBm 6.50 dB 4 96 FLAM MediumFast 2026-03-27 21:56:46 UTC View
FLAN-F208 (FLAN) -0.494s
Before
-40.0 dBm 6.50 dB 4 96 FLAM ShortFast 2026-03-27 21:56:46 UTC View
FLAN-F208 (FLAN) -0.478s
Before
-40.0 dBm 6.50 dB 4 96 FLAM ShortFast 2026-03-27 21:56:46 UTC View
FLAN-F208 (FLAN) -0.467s
Before
-40.0 dBm 6.50 dB 4 96 FLAM ShortFast 2026-03-27 21:56:46 UTC View
FLAN-F208 (FLAN) -0.054s
Before
-40.0 dBm 6.50 dB 4 96 FLAM ShortFast 2026-03-27 21:56:46 UTC View
FLAN-F208 (FLAN) -0.027s
Before
-40.0 dBm 6.50 dB 4 96 FLAM ShortFast 2026-03-27 21:56:46 UTC View
FLAN-F208 (FLAN) -0.014s
Before
-40.0 dBm 6.50 dB 4 96 FLAM ShortFast 2026-03-27 21:56:47 UTC View
FLAN-F208 (FLAN) +0.012s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortFast 2026-03-27 21:56:47 UTC View
FLAN-F208 (FLAN) +0.393s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortFast 2026-03-27 21:56:47 UTC View
FLAN-F208 (FLAN) +0.411s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortFast 2026-03-27 21:56:47 UTC View
FLAN-F208 (FLAN) +0.423s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortFast 2026-03-27 21:56:47 UTC View
FLAN-F208 (FLAN) +0.765s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortTurbo 2026-03-27 21:56:47 UTC View
FLAN-F208 (FLAN) +0.776s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortTurbo 2026-03-27 21:56:47 UTC View
FLAN-F208 (FLAN) +0.788s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortTurbo 2026-03-27 21:56:47 UTC View
FLAN-F208 (FLAN) +0.801s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortTurbo 2026-03-27 21:56:47 UTC View
FLAN-F208 (FLAN) +1.188s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortTurbo 2026-03-27 21:56:48 UTC View
FLAN-F208 (FLAN) +1.199s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortTurbo 2026-03-27 21:56:48 UTC View
FLAN-F208 (FLAN) +1.215s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortTurbo 2026-03-27 21:56:48 UTC View
FLAN-F208 (FLAN) +1.247s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortTurbo 2026-03-27 21:56:48 UTC View
FLAN-F208 (FLAN) +1.265s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortTurbo 2026-03-27 21:56:48 UTC View
FLAN-F208 (FLAN) +1.669s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortTurbo 2026-03-27 21:56:48 UTC View
FLAN-F208 (FLAN) +1.685s
After
-40.0 dBm 6.50 dB 4 96 FLAM ShortTurbo 2026-03-27 21:56:48 UTC View
FLAN-F208 (FLAN) +2.061s
After
-40.0 dBm 6.50 dB 4 96 FLAM LongFast 2026-03-27 21:56:49 UTC View
45

Total Receptions

1

Unique Gateways