Packet #2353873 Success

POSITION_APP packet from HGL9 - PD0ZZ - Hengelo Ov (HGL9) to !ffffffff

21
Total Receptions
9
Unique Gateways
3
Hop Count
20
Payload Bytes
Packet Information
Database ID: 2353873
Mesh Packet ID: 0xf65d4ea0
Used for correlation across gateways
Timestamp: 2025-08-14 03:49:05 UTC
From Node: HGL9 - PD0ZZ - Hengelo Ov (HGL9)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Terwinselen | Kerkrade | Netherlands (TKNB)
Channel: OpenChat
RSSI: -123 dBm
SNR: -7.0 dBm
Hop Info: 3/7 hops
Start: 7, Limit: 4
Payload Data
Protocol: POSITION_APP
Size: 20 bytes
Decoded: Yes
Decoded Data:
Latitude:52.265191°
Longitude:6.828188°
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:20 bytes
Gateway:!da9d6938
Channel:OpenChat
Payload Type:POSITION_APP
Hop Count:3 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: OpenChat
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !da9d6938
Node ID format
channel_id OpenChat
packet MeshPacket (20 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3926066804
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 20 bytes size
hop_limit 4
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -123.0 dBm
Signal strength at gateway 		int32
rx_snr -7.00 dB
Signal quality at gateway 		float
rx_time 1755136144
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 1755136145.1747532
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: OpenChat
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ Multi-hop path visible (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !da9d6938
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -123.0 dBm
SNR: -7.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:20 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 52.2651906, "longitude": 6.8281881, "altitude": null, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!da9d6938", "channel_id": "OpenChat", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3926066804, "to": 4294967295, "id": 4133310112, "rx_time": 1755136144, "rx_snr": -7.0, "rx_rssi": -123, "hop_limit": 4, "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": "0d0209271f1519e611042582409d682802b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 522651906, "longitude_i": 68281881, "time": 1755136130, "location_source": "LOC_INTERNAL", "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (20 bytes)
0d0209271f1519e611042582409d682802b80120
Hex Analysis:
Size:20 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
Terwinselen | Kerkrade | Netherlands (TKNB) Primary 0.000s
Reference 		-123.0 dBm -7.00 dB 3 OpenChat 2025-08-14 03:49:05 Current
HGL0 - PD0ZZ - Hengelo Ov (HGL0) -12.561s
Before 		-65.0 dBm 7.25 dB 0 LongFast 2025-08-14 03:48:52 View
HGL0 - PD0ZZ - Hengelo Ov (HGL0) -12.429s
Before 		-65.0 dBm 7.25 dB 0 LongFast 2025-08-14 03:48:52 View
HGL0 - PD0ZZ - Hengelo Ov (HGL0) -12.412s
Before 		-65.0 dBm 7.25 dB 0 LongFast 2025-08-14 03:48:52 View
HGL0 - PD0ZZ - Hengelo Ov (HGL0) -12.389s
Before 		-65.0 dBm 7.25 dB 0 LongFast 2025-08-14 03:48:52 View
Renze 2 EORA-S3 (RN2) -9.578s
Before 		-121.0 dBm -11.50 dB 1 LongFast 2025-08-14 03:48:55 View
Renze 2 EORA-S3 (RN2) -9.524s
Before 		-121.0 dBm -11.50 dB 1 LongFast 2025-08-14 03:48:55 View
Renze 2 EORA-S3 (RN2) -9.502s
Before 		-121.0 dBm -11.50 dB 1 LongFast 2025-08-14 03:48:55 View
Renze 2 EORA-S3 (RN2) -9.489s
Before 		-121.0 dBm -11.50 dB 1 LongFast 2025-08-14 03:48:55 View
Meshtastic 7304 (7304) -9.180s
Before 		-106.0 dBm -7.00 dB 1 LongFast 2025-08-14 03:48:55 View
ENS_EAUROUGE_NL 🏠 🌐 (ENSB) -9.166s
Before 		-126.0 dBm -12.25 dB 1 LongFast 2025-08-14 03:48:56 View
ENS_EAUROUGE_NL 🏠 🌐 (ENSB) -9.152s
Before 		-126.0 dBm -12.25 dB 1 LongFast 2025-08-14 03:48:56 View
ENS_EAUROUGE_NL 🏠 🌐 (ENSB) -9.137s
Before 		-126.0 dBm -12.25 dB 1 LongFast 2025-08-14 03:48:56 View
ENS_EAUROUGE_NL 🏠 🌐 (ENSB) -9.122s
Before 		-126.0 dBm -12.25 dB 1 LongFast 2025-08-14 03:48:56 View
Tuindorp Enschede Gateway 🌐🔌 (TDRG) -7.723s
Before 		-128.0 dBm -19.75 dB 2 LongFast 2025-08-14 03:48:57 View
Tuindorp Enschede Gateway 🌐🔌 (TDRG) -7.707s
Before 		-128.0 dBm -19.75 dB 2 LongFast 2025-08-14 03:48:57 View
Tuindorp Enschede Gateway 🌐🔌 (TDRG) -7.695s
Before 		-128.0 dBm -19.75 dB 2 LongFast 2025-08-14 03:48:57 View
Tuindorp Enschede Gateway 🌐🔌 (TDRG) -7.683s
Before 		-128.0 dBm -19.75 dB 2 LongFast 2025-08-14 03:48:57 View
MT Node Pey (PEY) +1.631s
After 		-117.0 dBm -11.25 dB 4 LongFast 2025-08-14 03:49:06 View
Tolkamer 93b4 (Erdw) +8.112s
After 		-123.0 dBm -17.25 dB 5 LongFast 2025-08-14 03:49:13 View
Meshtastic bb5c (bb5c) +8.123s
After 		-118.0 dBm -7.75 dB 5 LongFast 2025-08-14 03:49:13 View
21

Total Receptions

9

Unique Gateways