Packet #17810352 Success

POSITION_APP packet from Tree Trunk (TTRK) to !ffffffff

45
Total Receptions
1
Unique Gateways
2
Hop Count
27
Payload Bytes
Packet Information
Database ID: 17810352
Mesh Packet ID: 0x63203d54
Used for correlation across gateways
Timestamp: 2026-03-27 10:13:06 UTC
From Node: Tree Trunk (TTRK)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: DIR Rooftop (DIR)
Channel: ShortFast
RSSI: -87 dBm
SNR: -4.25 dBm
Hop Info: 2/5 hops
Start: 5, Limit: 3
Relay Node: 8f
Last byte of the last hop that relayed this packet
Payload Data
Protocol: POSITION_APP
Size: 27 bytes
Decoded: Yes
Decoded Data:
Latitude:45.527859°
Longitude:-73.590374°
Altitude:40 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:!6985083c
Channel:ShortFast
Payload Type:POSITION_APP
Hop Count:2 / 5
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 !6985083c
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

FieldValueType
from 1771852888
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 3
Remaining hops allowed
uint32
hop_start 5
Initial hop limit
uint32
hops_taken 2
Calculated: hop_start - hop_limit
derived
rx_rssi -87.0 dBm
Signal strength at gateway
int32
rx_snr -4.25 dB
Signal quality at gateway
float
rx_time 1774606387
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 143
Relay node ID
uint32
tx_after Not set uint32
timestamp 1774606386.6265657
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: ~729.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !6985083c
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -87.0 dBm
SNR: -4.25 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": 45.5278592, "longitude": -73.5903744, "altitude": 40, "sats_in_view": null, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!6985083c", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1771852888, "to": 4294967295, "id": 1663057236, "rx_time": 1774606387, "rx_snr": -4.25, "rx_rssi": -87, "hop_limit": 3, "hop_start": 5, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 143, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000231b15000023d41828252258c66928017800800100b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 455278592, "longitude_i": -735903744, "altitude": 40, "time": 1774606370, "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)
0d0000231b15000023d41828252258c66928017800800100b8010f
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
DIR Rooftop (DIR) Primary 0.000s
Reference
-87.0 dBm -4.25 dB 2 8f ShortFast 2026-03-27 10:13:06 UTC Current
DIR Rooftop (DIR) -0.316s
Before
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.292s
Before
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.280s
Before
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.263s
Before
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.246s
Before
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.228s
Before
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.216s
Before
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.205s
Before
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.192s
Before
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.180s
Before
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.169s
Before
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.159s
Before
-87.0 dBm -4.25 dB 2 8f MediumFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.148s
Before
-87.0 dBm -4.25 dB 2 8f MediumFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.137s
Before
-87.0 dBm -4.25 dB 2 8f MediumFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.126s
Before
-87.0 dBm -4.25 dB 2 8f MediumFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.115s
Before
-87.0 dBm -4.25 dB 2 8f MediumFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.103s
Before
-87.0 dBm -4.25 dB 2 8f MediumFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.091s
Before
-87.0 dBm -4.25 dB 2 8f MediumFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.079s
Before
-87.0 dBm -4.25 dB 2 8f MediumFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.068s
Before
-87.0 dBm -4.25 dB 2 8f MediumFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.056s
Before
-87.0 dBm -4.25 dB 2 8f MediumFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.044s
Before
-87.0 dBm -4.25 dB 2 8f MediumFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.032s
Before
-87.0 dBm -4.25 dB 2 8f ShortFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.022s
Before
-87.0 dBm -4.25 dB 2 8f ShortFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) -0.011s
Before
-87.0 dBm -4.25 dB 2 8f ShortFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.010s
After
-87.0 dBm -4.25 dB 2 8f ShortFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.021s
After
-87.0 dBm -4.25 dB 2 8f ShortFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.032s
After
-87.0 dBm -4.25 dB 2 8f ShortFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.043s
After
-87.0 dBm -4.25 dB 2 8f ShortFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.054s
After
-87.0 dBm -4.25 dB 2 8f ShortFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.066s
After
-87.0 dBm -4.25 dB 2 8f ShortFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.079s
After
-87.0 dBm -4.25 dB 2 8f ShortFast 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.091s
After
-87.0 dBm -4.25 dB 2 8f ShortTurbo 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.103s
After
-87.0 dBm -4.25 dB 2 8f ShortTurbo 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.115s
After
-87.0 dBm -4.25 dB 2 8f ShortTurbo 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.127s
After
-87.0 dBm -4.25 dB 2 8f ShortTurbo 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.139s
After
-87.0 dBm -4.25 dB 2 8f ShortTurbo 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.151s
After
-87.0 dBm -4.25 dB 2 8f ShortTurbo 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.162s
After
-87.0 dBm -4.25 dB 2 8f ShortTurbo 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.173s
After
-87.0 dBm -4.25 dB 2 8f ShortTurbo 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.184s
After
-87.0 dBm -4.25 dB 2 8f ShortTurbo 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.195s
After
-87.0 dBm -4.25 dB 2 8f ShortTurbo 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.206s
After
-87.0 dBm -4.25 dB 2 8f ShortTurbo 2026-03-27 10:13:06 UTC View
DIR Rooftop (DIR) +0.216s
After
-87.0 dBm -4.25 dB 2 8f LongFast 2026-03-27 10:13:06 UTC View
45

Total Receptions

1

Unique Gateways