Packet #3138384 Success

POSITION_APP packet from HGL0 - PD0ZZ - Hengelo Ov (HGL0) to Cor TTGO V1 mobiel (GLB2)

10
Total Receptions
4
Unique Gateways
1
Hop Count
17
Payload Bytes
Packet Information
Database ID: 3138384
Mesh Packet ID: 0x88bf22ab
Used for correlation across gateways
Timestamp: 2025-08-19 21:50:02 UTC
From Node: HGL0 - PD0ZZ - Hengelo Ov (HGL0)
To Node: Cor TTGO V1 mobiel (GLB2)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Tuindorp Enschede Gateway 🌐🔌 (TDRG)
Channel: LongFast
RSSI: -112 dBm
SNR: -3.25 dBm
Hop Info: 1/7 hops
Start: 7, Limit: 6
Payload Data
Protocol: POSITION_APP
Size: 17 bytes
Decoded: Yes
Decoded Data:
Latitude:52.264913°
Longitude:6.828384°
Altitude:35 m
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:17 bytes
Gateway:!433a9b64
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:1 / 7
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !433a9b64
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (17 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2733363716
Source node ID 		uint32
to 2759070284
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 17 bytes size
hop_limit 6
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -112.0 dBm
Signal strength at gateway 		int32
rx_snr -3.25 dB
Signal quality at gateway 		float
rx_time 1755633000
Receive timestamp 		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 Not set uint32
tx_after Not set uint32
timestamp 1755633002.3431892
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:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !433a9b64
Signal Metrics: RSSI: -112.0 dBm
SNR: -3.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:17 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 52.264913, "longitude": 6.828384, "altitude": 35, "sats_in_view": null, "precision_bits": null }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!433a9b64", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2733363716, "to": 2759070284, "id": 2294227627, "rx_time": 1755633000, "rx_snr": -3.25, "rx_rssi": -112, "hop_limit": 6, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d2afe261f15c0ed110418232564d5a468", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 522649130, "longitude_i": 68283840, "altitude": 35, "time": 1755632996, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (17 bytes)
0d2afe261f15c0ed110418232564d5a468
Hex Analysis:
Size:17 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
Tuindorp Enschede Gateway 🌐🔌 (TDRG) Primary 0.000s
Reference 		-112.0 dBm -3.25 dB 1 LongFast 2025-08-19 21:50:02 Current
HGL0 - PD0ZZ - Hengelo Ov (HGL0) -4.862s
Before 		Unknown Unknown 0 LongFast 2025-08-19 21:49:57 View
HGL0 - PD0ZZ - Hengelo Ov (HGL0) -4.728s
Before 		Unknown Unknown 0 LongFast 2025-08-19 21:49:57 View
HGL0 - PD0ZZ - Hengelo Ov (HGL0) -4.722s
Before 		Unknown Unknown 0 LongFast 2025-08-19 21:49:57 View
HGL0 - PD0ZZ - Hengelo Ov (HGL0) -4.717s
Before 		Unknown Unknown 0 LongFast 2025-08-19 21:49:57 View
Zaphod B 02 (Z02) -3.892s
Before 		-128.0 dBm -20.00 dB 0 LongFast 2025-08-19 21:49:58 View
Meshtastic 7304 (7304) -3.883s
Before 		-112.0 dBm -5.25 dB 0 LongFast 2025-08-19 21:49:58 View
Tuindorp Enschede Gateway 🌐🔌 (TDRG) +0.008s
After 		-112.0 dBm -3.25 dB 1 LongFast 2025-08-19 21:50:02 View
Tuindorp Enschede Gateway 🌐🔌 (TDRG) +0.133s
After 		-112.0 dBm -3.25 dB 1 LongFast 2025-08-19 21:50:02 View
Tuindorp Enschede Gateway 🌐🔌 (TDRG) +0.144s
After 		-112.0 dBm -3.25 dB 1 LongFast 2025-08-19 21:50:02 View
10

Total Receptions

4

Unique Gateways