Packet #13751278 Success

POSITION_APP packet from โš ๏ธ (AAAA) to !ffffffff

15
Total Receptions
15
Unique Gateways
1
Hop Count
36
Payload Bytes
Packet Information
Database ID: 13751278
Mesh Packet ID: 0x53f4d209
Used for correlation across gateways
Timestamp: 2025-10-05 18:45:11 UTC
From Node: โš ๏ธ (AAAA)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: GRN1-Base๐Ÿ—ผ๐ŸŒ (GRN1)
Channel: MediumSlow
RSSI: -108 dBm
SNR: -12.25 dBm
Hop Info: 1/5 hops
Start: 5, Limit: 4
Payload Data
Protocol: POSITION_APP
Size: 36 bytes
Decoded: Yes
Decoded Data:
Latitude:40.658534ยฐ
Longitude:-3.748659ยฐ
Altitude:672 m
Satellites:5
Precision:13 bits
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysis
Packet Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) โ†’ MeshPacket (Mesh layer) โ†’ Decoded Payload (Application data)
Total Size:36 bytes
Gateway:!43b706e8
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:1 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
โœ“ Direct LoRa transmission (not via MQTT)
โœ“ Custom channel: MediumSlow
+ 2 more...
Exposure Risks:
โš  Visible to all nodes on channel
โš  Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !43b706e8
Node ID format
channel_id MediumSlow
packet MeshPacket (36 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3208414582
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 3
POSITION_APP
enum
decoded.payload_length 36 bytes size
hop_limit 4
Remaining hops allowed
uint32
hop_start 5
Initial hop limit
uint32
hops_taken 1
Calculated: hop_start - hop_limit
derived
rx_rssi -108.0 dBm
Signal strength at gateway
int32
rx_snr -12.25 dB
Signal quality at gateway
float
rx_time 1759689909
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 4
Relay node ID
uint32
tx_after Not set uint32
timestamp 1759689911.252852
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:
  • โœ“ Direct LoRa transmission (not via MQTT)
  • โœ“ Custom channel: MediumSlow
  • โœ“ Gateway node ID tracked
  • โœ“ Reduced position precision: ~2900.0m accuracy
Exposure Risks:
  • โš  Visible to all nodes on channel
  • โš  Packet visible to MQTT subscribers
  • โš  Multi-hop path visible (1 hops)
  • โš  RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !43b706e8
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -108.0 dBm
SNR: -12.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:36 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.6585344, "longitude": -3.7486592, "altitude": 672, "sats_in_view": 5, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!43b706e8", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3208414582, "to": 4294967295, "id": 1408553481, "rx_time": 1759689909, "rx_snr": -12.25, "rx_rssi": -108, "hop_limit": 4, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 4, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00003c18150000c4fd18a00525b5bce268280258c40278088001f8ad37980105b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 406585344, "longitude_i": -37486592, "altitude": 672, "time": 1759689909, "location_source": "LOC_INTERNAL", "PDOP": 324, "ground_speed": 8, "ground_track": 907000, "sats_in_view": 5, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (36 bytes)
0d00003c18150000c4fd18a00525b5bce268280258c40278088001f8ad37980105b8010d
Hex Analysis:
Size:36 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
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Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Channel Timestamp Actions
GRN1-Base๐Ÿ—ผ๐ŸŒ (GRN1) Primary 0.000s
Reference
-108.0 dBm -12.25 dB 1 MediumSlow 2025-10-05 18:45:11 Current
Monolito (MoN) +0.329s
After
-57.0 dBm 8.25 dB 2 MediumSlow 2025-10-05 18:45:11 View
Venturada2๐Ÿ—ผ๐ŸŒโ˜€๏ธ (Vb2) +0.608s
After
-97.0 dBm -3.25 dB 2 MediumSlow 2025-10-05 18:45:11 View
[TLG] ๐Ÿ“ก๐ŸŒ๐Ÿ”‹๐Ÿ”Œ (tlg0) +0.940s
After
-119.0 dBm -15.25 dB 2 MediumSlow 2025-10-05 18:45:12 View
Will - Azuqueca (WAzq) +1.038s
After
-99.0 dBm 6.00 dB 2 MediumSlow 2025-10-05 18:45:12 View
Mec Rocket Meco (MRM) +1.058s
After
-91.0 dBm 5.25 dB 2 MediumSlow 2025-10-05 18:45:12 View
Trasto ๐Ÿฐ Va (trva) +1.360s
After
-113.0 dBm -9.25 dB 2 MediumSlow 2025-10-05 18:45:12 View
Meshtastic 1760 (1760) +1.366s
After
-129.0 dBm -8.75 dB 2 MediumSlow 2025-10-05 18:45:12 View
Meshtastic 18a4 (18a4) +1.368s
After
-119.0 dBm -9.50 dB 2 MediumSlow 2025-10-05 18:45:12 View
Baldur Fijo (BalF) +1.376s
After
-104.0 dBm -3.75 dB 2 MediumSlow 2025-10-05 18:45:12 View
Antonio 82d4 (82d4) +1.588s
After
-120.0 dBm -10.50 dB 2 MediumSlow 2025-10-05 18:45:12 View
Rodashtastic๐Ÿ—ผ๐ŸŒ (RDSt) +1.954s
After
-114.0 dBm -6.50 dB 2 MediumSlow 2025-10-05 18:45:13 View
Villalbilla02 (VBV2) +2.168s
After
-109.0 dBm -6.50 dB 3 MediumSlow 2025-10-05 18:45:13 View
tizon (Sylv) +2.613s
After
-114.0 dBm -5.25 dB 3 MediumSlow 2025-10-05 18:45:13 View
Aldinra_1640_๐Ÿ—ผ_๐ŸŒ (AldB) +390.371s
After
-114.0 dBm -7.00 dB 2 MediumSlow 2025-10-05 18:51:41 View
15

Total Receptions

15

Unique Gateways