Packet #17515921 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: 17515921
Mesh Packet ID: 0x1c71234c
Used for correlation across gateways
Timestamp: 2026-03-26 18:10:28 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 1774548628.0240138
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 18:10:28 UTC Current
Essex 78ca (78ca) -0.569s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.497s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.478s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.459s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.442s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.355s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.343s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.330s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.318s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.306s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.294s
Before 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.282s
Before 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.270s
Before 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.215s
Before 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.160s
Before 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:27 UTC View
Essex 78ca (78ca) -0.011s
Before 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.011s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.048s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.084s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.166s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.223s
After 		Unknown Unknown 0 ca 78ca MediumFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.259s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.358s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.392s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.405s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.417s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.452s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.464s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.475s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.486s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.519s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.599s
After 		Unknown Unknown 0 ca 78ca ShortFast 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.634s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.646s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.744s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.756s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.793s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.872s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.926s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:28 UTC View
Essex 78ca (78ca) +0.986s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:29 UTC View
Essex 78ca (78ca) +0.998s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:29 UTC View
Essex 78ca (78ca) +1.010s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:29 UTC View
Essex 78ca (78ca) +1.022s
After 		Unknown Unknown 0 ca 78ca ShortTurbo 2026-03-26 18:10:29 UTC View
Essex 78ca (78ca) +1.033s
After 		Unknown Unknown 0 ca 78ca LongFast 2026-03-26 18:10:29 UTC View
45

Total Receptions

1

Unique Gateways