Packet #2686928 Success

POSITION_APP packet from PD1RB-QTH (1RBH) to !ffffffff

20
Total Receptions
18
Unique Gateways
3
Hop Count
22
Payload Bytes
Packet Information
Database ID: 2686928
Mesh Packet ID: 0x7a2116bb
Used for correlation across gateways
Timestamp: 2025-08-16 13:25:36 UTC
From Node: PD1RB-QTH (1RBH)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: MeshNet (GS-D)
Channel: LongFast
RSSI: Unknown
SNR: Unknown
Hop Info: 3/3 hops
Start: 3, Limit: 0
Payload Data
Protocol: POSITION_APP
Size: 22 bytes
Decoded: Yes
Decoded Data:
Latitude:52.395009°
Longitude:5.171573°
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:22 bytes
Gateway:!55cafe69
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:3 / 3
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 !55cafe69
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (22 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3677292404
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 22 bytes size
hop_limit Not set uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1755343535
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 212
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1755343536.1758513
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 (3 hops)
MQTT-Specific Fields
Gateway ID: !55cafe69
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:22 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 52.3950085, "longitude": 5.1715728, "altitude": 0, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!55cafe69", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3677292404, "to": 4294967295, "id": 2048988859, "rx_time": 1755343535, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 0, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 64, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 212, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d05d83a1f15901e1503180028037800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 523950085, "longitude_i": 51715728, "altitude": 0, "location_source": "LOC_EXTERNAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (22 bytes)
0d05d83a1f15901e1503180028037800800100b80120
Hex Analysis:
Size:22 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
MeshNet (GS-D) Primary 0.000s
Reference 		Unknown Unknown 3 LongFast 2025-08-16 13:25:36 Current
ALM-BC-Satisfaction (Ally) -154.424s
Before 		-108.0 dBm -9.25 dB 0 LongFast 2025-08-16 13:23:01 View
Meshtastic 9e2c (9e2c) -1.573s
Before 		-118.0 dBm -8.00 dB 1 LongFast 2025-08-16 13:25:34 View
Y0sh1 TD (Y0TD) -1.261s
Before 		Unknown Unknown 2 LongFast 2025-08-16 13:25:34 View
Destiny Long 🏠🔌🌐🛰️ (Long) -1.126s
Before 		-135.0 dBm -11.00 dB 1 LongFast 2025-08-16 13:25:35 View
Joozt - Rijen 🏠 (JZT) -1.114s
Before 		-123.0 dBm -13.00 dB 1 LongFast 2025-08-16 13:25:35 View
Meshtastic 5578 (5578) -1.101s
Before 		-134.0 dBm -16.75 dB 1 LongFast 2025-08-16 13:25:35 View
Y0sh1 Base (Y0v2) -0.857s
Before 		-143.0 dBm -18.50 dB 1 LongFast 2025-08-16 13:25:35 View
HolRad (HlRd) -0.846s
Before 		-128.0 dBm -18.25 dB 1 LongFast 2025-08-16 13:25:35 View
Colossus 1 (ccw1) -0.148s
Before 		-114.0 dBm -5.50 dB 2 LongFast 2025-08-16 13:25:36 View
MeshNet (GS-D) -0.013s
Before 		Unknown Unknown 3 LongFast 2025-08-16 13:25:36 View
MeshNet.NL (GS0D) +0.025s
After 		-112.0 dBm -2.50 dB 2 LongFast 2025-08-16 13:25:36 View
MeshNet.NL (GS0D) +0.043s
After 		-112.0 dBm -2.50 dB 2 LongFast 2025-08-16 13:25:36 View
Ams Zuid (AMS) +0.259s
After 		-95.0 dBm 7.00 dB 2 LongFast 2025-08-16 13:25:36 View
Leimuiden - Bas (LMDN) +0.638s
After 		-122.0 dBm -11.50 dB 2 LongFast 2025-08-16 13:25:36 View
NL-3545-Knalliebar (KNB0) +0.822s
After 		-111.0 dBm 1.25 dB 2 LongFast 2025-08-16 13:25:36 View
HLM Raaks Base 🏡🛜 (HLR1) +1.441s
After 		-79.0 dBm 6.25 dB 2 LongFast 2025-08-16 13:25:37 View
Meshtastic gf30c (gf3c) +1.711s
After 		-130.0 dBm -7.00 dB 3 LongFast 2025-08-16 13:25:37 View
Ams Zuidas Base (AZ4) +4.024s
After 		-112.0 dBm -12.25 dB 3 LongFast 2025-08-16 13:25:40 View
Xebia 🌐🔌 Hilversum Bridge (XHB) +7.047s
After 		-85.0 dBm 12.75 dB 3 LongFast 2025-08-16 13:25:43 View
20

Total Receptions

18

Unique Gateways