Packet #28244035 Success

POSITION_APP packet from jopsis_tracker (πŸ‘Ύ) to !ffffffff

17
Total Receptions
17
Unique Gateways
1
Hop Count
46
Payload Bytes
Packet Information
Database ID: 28244035
Mesh Packet ID: 0xb66b7f27
Used for correlation across gateways
Timestamp: 2025-12-17 10:01:10 UTC
From Node: jopsis_tracker (πŸ‘Ύ)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: tizon (Sylv)
Channel: MediumFast
RSSI: Unknown
SNR: Unknown
Hop Info: 1/5 hops
Start: 5, Limit: 4
Relay Node: 0c Sylv
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: POSITION_APP
Size: 46 bytes
Decoded: Yes
Decoded Data:
Latitude:40.316760Β°
Longitude:-3.705455Β°
Altitude:649 m
Satellites:19
Precision:32 bits
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysis
Packet Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) β†’ MeshPacket (Mesh layer) β†’ Decoded Payload (Application data)
Total Size:46 bytes
Gateway:!9e7809e8
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:1 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
βœ“ Direct LoRa transmission (not via MQTT)
βœ“ Custom channel: MediumFast
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !9e7809e8
Node ID format
channel_id MediumFast
packet MeshPacket (46 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 578056401
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 3
POSITION_APP
enum
decoded.payload_length 46 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 Not set int32
rx_snr Not set float
rx_time 1765965670
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 12
Relay node ID
uint32
tx_after Not set uint32
timestamp 1765965670.8864956
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:
  • βœ“ Direct LoRa transmission (not via MQTT)
  • βœ“ Custom channel: MediumFast
  • βœ“ 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 (1 hops)
MQTT-Specific Fields
Gateway ID: !9e7809e8
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:46 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.31676, "longitude": -3.705455, "altitude": 649, "sats_in_view": 19, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9e7809e8", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 578056401, "to": 4294967295, "id": 3060498215, "rx_time": 1765965670, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 4, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 64, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 12, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d70d9071815aa97cafd18890525747f426928023d767e42695066586178008001f096d510980113b00101b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403167600, "longitude_i": -37054550, "altitude": 649, "time": 1765965684, "location_source": "LOC_INTERNAL", "timestamp": 1765965430, "altitude_geoidal_separation": 51, "PDOP": 97, "ground_speed": 0, "ground_track": 34950000, "sats_in_view": 19, "seq_number": 1, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (46 bytes)
0d70d9071815aa97cafd18890525747f426928023d767e42695066586178008001f096d510980113b00101b80120
Hex Analysis:
Size:46 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 Relay Channel Timestamp Actions
tizon (Sylv) Primary 0.000s
Reference
Unknown Unknown 1 0c Sylv MediumFast 2025-12-17 10:01:10 UTC Current
πŸ€– Nicolas Cage 🌐 (Cage) -0.217s
Before
-117.0 dBm -6.75 dB 0 d1 πŸ‘Ύ MediumFast 2025-12-17 10:01:10 UTC View
Meshtastic b2b4πŸ“‘πŸŒ (b2b4) +0.315s
After
-110.0 dBm -7.50 dB 1 2d SkyB MediumFast 2025-12-17 10:01:11 UTC View
Karabanchel_Baldur (KarB) +0.319s
After
-95.0 dBm 1.00 dB 1 2d SkyB MediumFast 2025-12-17 10:01:11 UTC View
GRN1-BaseπŸ—ΌπŸŒ πŸ”‹ (GRN1) +1.404s
After
-105.0 dBm -12.00 dB 2 - MediumFast 2025-12-17 10:01:12 UTC View
Varela Bot πŸ‘πŸ€– (πŸ€–) +2.041s
After
-82.0 dBm 7.75 dB 3 1c 🏑 MediumFast 2025-12-17 10:01:12 UTC View
RodashtasticπŸ—ΌπŸŒ (RDSt) +2.203s
After
-116.0 dBm -6.25 dB 3 e8 GRN1 MediumFast 2025-12-17 10:01:13 UTC View
Venturada2πŸ—ΌπŸŒβ˜€οΈ (Vb2) +2.321s
After
-88.0 dBm 7.25 dB 4 61 TO1 MediumFast 2025-12-17 10:01:13 UTC View
ETH Maverick (ET01) +2.577s
After
-105.0 dBm -7.25 dB 4 61 TO1 MediumFast 2025-12-17 10:01:13 UTC View
Fenix (FENX) +2.652s
After
-117.0 dBm -11.25 dB 4 61 TO1 MediumFast 2025-12-17 10:01:13 UTC View
P3 iGate 🏠🌐 (P3N2) +3.274s
After
-38.0 dBm 11.00 dB 5 25 P3N1 MediumFast 2025-12-17 10:01:14 UTC View
Villarejo01 (VIL1) +3.308s
After
-39.0 dBm 10.75 dB 5 c6 d5c6 MediumFast 2025-12-17 10:01:14 UTC View
XiaoWatt c4c8 πŸŒπŸ”Œ (c4c8) +3.326s
After
-78.0 dBm -8.25 dB 5 b0 Vbm , Vb2 MediumFast 2025-12-17 10:01:14 UTC View
Meshtastic 1760 (1760) +3.552s
After
-132.0 dBm -11.75 dB 5 b0 Vbm , Vb2 MediumFast 2025-12-17 10:01:14 UTC View
ETH Goose (ET03) +3.898s
After
-33.0 dBm 11.00 dB 5 41 ET01 MediumFast 2025-12-17 10:01:14 UTC View
Ocumare NorteπŸ—ΌπŸŒ (RRN) +4.049s
After
-80.0 dBm 9.00 dB 4 96 TCLS MediumFast 2025-12-17 10:01:14 UTC View
Mec Rocket Meco (MRM) +5.475s
After
-108.0 dBm -8.50 dB 5 a8 CALB MediumFast 2025-12-17 10:01:16 UTC View
17

Total Receptions

17

Unique Gateways