Packet #17515907 Success

POSITION_APP packet from Essex 78ca (78ca) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
37
Payload Bytes
Packet Information
Database ID: 17515907
Mesh Packet ID: 0x1c71234c
Used for correlation across gateways
Timestamp: 2026-03-26 18:10:27 UTC
From Node: Essex 78ca (78ca)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Essex 78ca (78ca)
Channel: MediumFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: ca 78ca
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: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:42.178970°
Longitude:-82.811290°
Altitude:171 m
Satellites:7
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:37 bytes
Gateway:!6fa578ca
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 3 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !6fa578ca
Node ID format
channel_id MediumFast
packet MeshPacket (37 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1873115338
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 37 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1774548626
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 10
Packet priority level 		enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 202
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774548627.7541926
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: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~2900.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
MQTT-Specific Fields
Gateway ID: !6fa578ca
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Zero Hop Policy: Enabled
Direct gateway connection
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:37 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 42.1789696, "longitude": -82.8112896, "altitude": 171, "sats_in_view": 7, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!6fa578ca", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1873115338, "to": 4294967295, "id": 477176652, "rx_time": 1774548626, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 3, "hop_start": 3, "via_mqtt": false, "want_ack": false, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 202, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00002419150000a4ce18ab01259276c569280258b00178018001f8c1cb05980107b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 421789696, "longitude_i": -828112896, "altitude": 171, "time": 1774548626, "location_source": "LOC_INTERNAL", "PDOP": 176, "ground_speed": 1, "ground_track": 11723000, "sats_in_view": 7, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d00002419150000a4ce18ab01259276c569280258b00178018001f8c1cb05980107b8010d
Hex Analysis:
Size:37 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

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
Essex 78ca (78ca) Primary 0.000s
Reference 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:27 UTC Current
Essex 78ca (78ca) -0.300s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.228s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.208s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.189s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.172s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.085s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.073s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.061s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.048s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.036s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.024s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.012s
Before 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) +0.054s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) +0.110s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) +0.259s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.270s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.281s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.317s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.354s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.436s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.493s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.529s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.628s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.662s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.674s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.687s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.722s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.734s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.745s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.756s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.789s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.869s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.904s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.916s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +1.014s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +1.026s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +1.063s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +1.142s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +1.196s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +1.256s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:29 UTC View
Essex 78ca (78ca) +1.268s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:29 UTC View
Essex 78ca (78ca) +1.280s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:29 UTC View
Essex 78ca (78ca) +1.292s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:29 UTC View
Essex 78ca (78ca) +1.302s
After 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:29 UTC View
45

Total Receptions

1

Unique Gateways