Packet #28278558 Success

POSITION_APP packet from K0L0bock1 (K1BK) to !ffffffff

10
Total Receptions
10
Unique Gateways
4
Hop Count
45
Payload Bytes
Packet Information
Database ID: 28278558
Mesh Packet ID: 0x631b8e16
Used for correlation across gateways
Timestamp: 2025-12-17 14:09:32 UTC
From Node: K0L0bock1 (K1BK)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Leo Meshi (LMSI)
Channel: LongFast
RSSI: Unknown
SNR: Unknown
Hop Info: 4/7 hops
Start: 7, Limit: 3
Relay Node: 6c AMSH
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: 45 bytes
Decoded: Yes
Decoded Data:
Latitude:41.376154°
Longitude:2.146304°
Altitude:-849 m
Satellites:6
Precision:16 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:45 bytes
Gateway:!db29e9e8
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:4 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !db29e9e8
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (45 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2666207108
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 45 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1765980571
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 64
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 108
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765980572.7167444
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)
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ Multi-hop path visible (4 hops)
MQTT-Specific Fields
Gateway ID: !db29e9e8
Position Precision: 16 bits (~364.0m accuracy)
Position precision meters: 364.0
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:45 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 41.3761536, "longitude": 2.146304, "altitude": -849, "sats_in_view": 6, "precision_bits": 16 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db29e9e8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2666207108, "to": 4294967295, "id": 1662750230, "rx_time": 1765980571, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 3, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 64, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 108, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0080a918150080470118aff9ffffffffffffff01256db94269280258b30178018001c8b5dd10980106b80110", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 413761536, "longitude_i": 21463040, "altitude": -849, "time": 1765980525, "location_source": "LOC_INTERNAL", "PDOP": 179, "ground_speed": 1, "ground_track": 35085000, "sats_in_view": 6, "precision_bits": 16, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (45 bytes)
0d0080a918150080470118aff9ffffffffffffff01256db94269280258b30178018001c8b5dd10980106b80110
Hex Analysis:
Size:45 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
Leo Meshi (LMSI) Primary 0.000s
Reference 		Unknown Unknown 4 6c AMSH LongFast 2025-12-17 14:09:32 UTC Current
CODY-ConcaDeTremp-GW-868 (CODY) +0.574s
After 		-128.0 dBm -19.75 dB 4 8f LongFast 2025-12-17 14:09:33 UTC View
CROQUETASTIC-CL-868 (CRQT) +1.510s
After 		-74.0 dBm 13.75 dB 4 20 LongFast 2025-12-17 14:09:34 UTC View
g0maintt (g0mq) +1.744s
After 		-78.0 dBm -8.00 dB 4 60 g0sr LongFast 2025-12-17 14:09:34 UTC View
EA3JAV-SBD-MPL2-CM-8 🏠 (MPL2) +2.621s
After 		-59.0 dBm 7.00 dB 5 4e MPL1 LongFast 2025-12-17 14:09:35 UTC View
CV-Oriol-GW-8 📡 (CVO2) +2.967s
After 		-105.0 dBm -9.75 dB 5 5c CV05 LongFast 2025-12-17 14:09:35 UTC View
EB3FWC-Girona📡-GW-868 (EB3F) +2.999s
After 		-87.0 dBm 2.25 dB 5 - LongFast 2025-12-17 14:09:35 UTC View
MontcadaCentro-CL-868🗼🌐 (d9e8) +4.490s
After 		-89.0 dBm 6.25 dB 5 77 LongFast 2025-12-17 14:09:37 UTC View
Rubí - FCSv4 (FCS4) +6.363s
After 		-108.0 dBm -12.50 dB 6 88 LongFast 2025-12-17 14:09:39 UTC View
EAMG_rubí 🏠 (EAMG) +8.699s
After 		-83.0 dBm -13.75 dB 7 e0 FCS4 LongFast 2025-12-17 14:09:41 UTC View
10

Total Receptions

10

Unique Gateways