Packet #27155287 Success

POSITION_APP packet from EA2EAQ Caparroso (CAPA) to Sobradiel/EA2EYJ > Pedestre/🚶 (Luis)

3
Total Receptions
3
Unique Gateways
1
Hop Count
23
Payload Bytes
Packet Information
Database ID: 27155287
Mesh Packet ID: 0x25077e39
Used for correlation across gateways
Timestamp: 2025-12-12 08:46:02 UTC
From Node: EA2EAQ Caparroso (CAPA)
To Node: Sobradiel/EA2EYJ > Pedestre/🚶 (Luis)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Sobradiel/EA2EYJ > Pedestre/🚶 (Luis)
Channel: LongFast
RSSI: -68 dBm
SNR: 10.0 dBm
Hop Info: 1/3 hops
Start: 3, Limit: 2
Relay Node: f0 Luis
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: 23 bytes
Decoded: Yes
Decoded Data:
Latitude:42.299100°
Longitude:-1.654500°
Altitude:447 m
Precision:32 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:23 bytes
Gateway:!4ea625b6
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:1 / 3
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...
Exposure Risks:
âš  Default channel - no encryption
âš  Packet visible to MQTT subscribers
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !4ea625b6
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (23 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1617659905
Source node ID 		uint32
to 1319511478
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 23 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -68.0 dBm
Signal strength at gateway 		int32
rx_snr 10.00 dB
Signal quality at gateway 		float
rx_time Not set 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 240
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765529162.7080162
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Targeted to specific node
  • ✓ Gateway node ID tracked
Exposure Risks:
  • âš  Default channel - no encryption
  • âš  Packet visible to MQTT subscribers
  • âš  Full GPS precision shared
  • âš  Multi-hop path visible (1 hops)
  • âš  RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !4ea625b6
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -68.0 dBm
SNR: 10.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:23 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 42.2991, "longitude": -1.6545, "altitude": 447, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!4ea625b6", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1617659905, "to": 1319511478, "id": 621248057, "rx_time": 0, "rx_snr": 10.0, "rx_rssi": -68, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 240, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d9854361915188b03ff18bf0328017800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 422991000, "longitude_i": -16545000, "altitude": 447, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (23 bytes)
0d9854361915188b03ff18bf0328017800800100b80120
Hex Analysis:
Size:23 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
Sobradiel/EA2EYJ > Pedestre/🚶 (Luis) Primary 0.000s
Reference 		-68.0 dBm 10.00 dB 1 f0 Luis LongFast 2025-12-12 08:46:02 UTC Current
Sobradiel_EA2EYJ>Nodo Principal/Solar (Luis) -12.545s
Before 		-82.0 dBm -18.75 dB 1 c0 ebc0 , Luis LongFast 2025-12-12 08:45:50 UTC View
BUZ 🚶 Óscar (BUZ1) +29.260s
After 		-123.0 dBm -17.00 dB 2 d3 FDRn LongFast 2025-12-12 08:46:31 UTC View
3

Total Receptions

3

Unique Gateways