Packet #17731746 Success

POSITION_APP packet from SuitMechanics - t.me/meshtasticmtl (c479) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
27
Payload Bytes
Packet Information
Database ID: 17731746
Mesh Packet ID: 0xb8851881
Used for correlation across gateways
Timestamp: 2026-03-27 06:22:23 UTC
From Node: SuitMechanics - t.me/meshtasticmtl (c479)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Klc Sensecap (klc2)
Channel: ShortTurbo
RSSI: -101 dBm
SNR: -3.25 dBm
Hop Info: 0/7 hops
Start: 7, Limit: 7
Relay Node: 48 c479
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:45.501645°
Longitude:-73.564160°
Altitude:27 m
Precision:15 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:27 bytes
Gateway:!66203958
Channel:ShortTurbo
Payload Type:POSITION_APP
Hop Count:Unknown / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortTurbo
+ 3 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !66203958
Node ID format
channel_id ShortTurbo
packet MeshPacket (27 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2661395784
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 -101.0 dBm
Signal strength at gateway
int32
rx_snr -3.25 dB
Signal quality at gateway
float
rx_time 1774592538
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 72
Relay node ID
uint32
tx_after Not set uint32
timestamp 1774592543.4986384
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: ShortTurbo
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~729.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !66203958
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -101.0 dBm
SNR: -3.25 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": 45.5016448, "longitude": -73.56416, "altitude": 27, "sats_in_view": null, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!66203958", "channel_id": "ShortTurbo", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2661395784, "to": 4294967295, "id": 3095730305, "rx_time": 1774592538, "rx_snr": -3.25, "rx_rssi": -101, "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": 72, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00001f1b15000027d4181b250f22c66928017800800100b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 455016448, "longitude_i": -735641600, "altitude": 27, "time": 1774592527, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (27 bytes)
0d00001f1b15000027d4181b250f22c66928017800800100b8010f
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 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
Klc Sensecap (klc2) Primary 0.000s
Reference
-101.0 dBm -3.25 dB 0 48 c479 ShortTurbo 2026-03-27 06:22:23 UTC Current
Klc Sensecap (klc2) -0.800s
Before
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.770s
Before
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.758s
Before
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.741s
Before
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.731s
Before
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.714s
Before
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.696s
Before
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.685s
Before
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.675s
Before
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.664s
Before
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.653s
Before
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.642s
Before
-101.0 dBm -3.25 dB 0 48 c479 MediumFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.630s
Before
-101.0 dBm -3.25 dB 0 48 c479 MediumFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.617s
Before
-101.0 dBm -3.25 dB 0 48 c479 MediumFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.605s
Before
-101.0 dBm -3.25 dB 0 48 c479 MediumFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.593s
Before
-101.0 dBm -3.25 dB 0 48 c479 MediumFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.581s
Before
-101.0 dBm -3.25 dB 0 48 c479 MediumFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.569s
Before
-101.0 dBm -3.25 dB 0 48 c479 MediumFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.557s
Before
-101.0 dBm -3.25 dB 0 48 c479 MediumFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.544s
Before
-101.0 dBm -3.25 dB 0 48 c479 MediumFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.533s
Before
-101.0 dBm -3.25 dB 0 48 c479 MediumFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.522s
Before
-101.0 dBm -3.25 dB 0 48 c479 MediumFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.511s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.500s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortFast 2026-03-27 06:22:22 UTC View
Klc Sensecap (klc2) -0.489s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortFast 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.478s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortFast 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.468s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortFast 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.452s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortFast 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.144s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortFast 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.129s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortFast 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.118s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortFast 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.107s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortFast 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.097s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortFast 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.086s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortTurbo 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.075s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortTurbo 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.064s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortTurbo 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.052s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortTurbo 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.040s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortTurbo 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.028s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortTurbo 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) -0.015s
Before
-101.0 dBm -3.25 dB 0 48 c479 ShortTurbo 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) +0.012s
After
-101.0 dBm -3.25 dB 0 48 c479 ShortTurbo 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) +0.024s
After
-101.0 dBm -3.25 dB 0 48 c479 ShortTurbo 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) +0.036s
After
-101.0 dBm -3.25 dB 0 48 c479 ShortTurbo 2026-03-27 06:22:23 UTC View
Klc Sensecap (klc2) +0.046s
After
-101.0 dBm -3.25 dB 0 48 c479 LongFast 2026-03-27 06:22:23 UTC View
45

Total Receptions

1

Unique Gateways