Packet #2573499 Success

POSITION_APP packet from Zaphod B 01 (Z01) to Unknown

2
Total Receptions
2
Unique Gateways
0
Hop Count
27
Payload Bytes
Packet Information
Database ID: 2573499
Mesh Packet ID: 0x633e29c4
Used for correlation across gateways
Timestamp: 2025-08-15 16:38:54 UTC
From Node: Zaphod B 01 (Z01)
To Node: Unknown
Broadcast message
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Zaphod B 01 (Z01)
Channel: LongFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/0 hops
Start: 0, Limit: 0
Payload Data
Protocol: POSITION_APP
Size: 27 bytes
Decoded: Yes
Decoded Data:
Latitude:52.230759°
Longitude:6.916205°
Altitude:60 m
Satellites:12
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:!ba661f1c
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:Unknown / Unknown
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !ba661f1c
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (27 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3127254812
Source node ID 		uint32
to Not set uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 27 bytes size
hop_limit Not set uint32
hop_start Not set uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time Not set 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 28
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1755268734.7593167
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
MQTT-Specific Fields
Gateway ID: !ba661f1c
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:27 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 52.230759, "longitude": 6.9162046, "altitude": 60, "sats_in_view": 12, "precision_bits": null }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!ba661f1c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3127254812, "to": 0, "id": 1665018308, "rx_time": 0, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 0, "hop_start": 0, "via_mqtt": 0, "want_ack": 0, "priority": 64, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 28, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d06c8211f153e541f04183c2576469f6828033d76469f6898010c", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 522307590, "longitude_i": 69162046, "altitude": 60, "time": 1755268726, "location_source": "LOC_EXTERNAL", "timestamp": 1755268726, "sats_in_view": 12, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (27 bytes)
0d06c8211f153e541f04183c2576469f6828033d76469f6898010c
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

Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Channel Timestamp Actions
Zaphod B 01 (Z01) Primary 0.000s
Reference 		Unknown Unknown 0 LongFast 2025-08-15 16:38:54 Current
Zaphod B 02 (Z02) +1178.326s
After 		-39.0 dBm 6.00 dB 0 LongFast 2025-08-15 16:58:33 View
2

Total Receptions

2

Unique Gateways