Packet #12703033 Success

POSITION_APP packet from jopsis_tracker (70d1) to !ffffffff

18
Total Receptions
18
Unique Gateways
3
Hop Count
47
Payload Bytes
Packet Information
Database ID: 12703033
Mesh Packet ID: 0xcd1b793e
Used for correlation across gateways
Timestamp: 2025-09-29 03:44:03 UTC
From Node: jopsis_tracker (70d1)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: ๐ŸŒCharly Unid Movil๐Ÿ›ฐ (C181)
Channel: MediumSlow
RSSI: -23 dBm
SNR: 8.5 dBm
Hop Info: 3/4 hops
Start: 4, Limit: 1
Payload Data
Protocol: POSITION_APP
Size: 47 bytes
Decoded: Yes
Decoded Data:
Latitude:40.316578ยฐ
Longitude:-3.705182ยฐ
Altitude:718 m
Satellites:7
Precision:32 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:47 bytes
Gateway:!b03de73c
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:3 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
โœ“ Direct LoRa transmission (not via MQTT)
โœ“ Custom channel: MediumSlow
+ 1 more...
Exposure Risks:
โš  Visible to all nodes on channel
โš  Packet visible to MQTT subscribers
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !b03de73c
Node ID format
channel_id MediumSlow
packet MeshPacket (47 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 47 bytes size
hop_limit 1
Remaining hops allowed
uint32
hop_start 4
Initial hop limit
uint32
hops_taken 3
Calculated: hop_start - hop_limit
derived
rx_rssi -23.0 dBm
Signal strength at gateway
int32
rx_snr 8.50 dB
Signal quality at gateway
float
rx_time 1759117139
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 144
Relay node ID
uint32
tx_after Not set uint32
timestamp 1759117443.7684982
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
Exposure Risks:
  • โš  Visible to all nodes on channel
  • โš  Packet visible to MQTT subscribers
  • โš  Full GPS precision shared
  • โš  Multi-hop path visible (3 hops)
  • โš  RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b03de73c
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -23.0 dBm
SNR: 8.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:47 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.3165783, "longitude": -3.7051816, "altitude": 718, "sats_in_view": 7, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b03de73c", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 578056401, "to": 4294967295, "id": 3441129790, "rx_time": 1759117139, "rx_snr": 8.5, "rx_rssi": -23, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 144, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d57d207181558a2cafd18ce052552ffd96828023d49fad968506658a20178008001b8a79e10980107b00101b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403165783, "longitude_i": -37051816, "altitude": 718, "time": 1759117138, "location_source": "LOC_INTERNAL", "timestamp": 1759115849, "altitude_geoidal_separation": 51, "PDOP": 162, "ground_speed": 0, "ground_track": 34051000, "sats_in_view": 7, "seq_number": 1, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (47 bytes)
0d57d207181558a2cafd18ce052552ffd96828023d49fad968506658a20178008001b8a79e10980107b00101b80120
Hex Analysis:
Size:47 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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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
๐ŸŒCharly Unid Movil๐Ÿ›ฐ (C181) Primary 0.000s
Reference
-23.0 dBm 8.50 dB 3 MediumSlow 2025-09-29 03:44:03 Current
Meshtastic c498๐Ÿ“ก๐ŸŒ (C498) -308.845s
Before
-116.0 dBm -13.25 dB 1 MediumSlow 2025-09-29 03:38:54 View
[TLG] ๐Ÿ“ก๐ŸŒ๐Ÿ”‹๐Ÿ”Œ (tlg0) -307.620s
Before
-112.0 dBm -3.25 dB 2 MediumSlow 2025-09-29 03:38:56 View
Venturada2๐Ÿ—ผ๐ŸŒโ˜€๏ธ (Vb2) -306.947s
Before
-93.0 dBm 1.75 dB 2 MediumSlow 2025-09-29 03:38:56 View
Mec Rocket Meco (MRM) -306.914s
Before
-108.0 dBm -4.50 dB 2 MediumSlow 2025-09-29 03:38:56 View
Naranjo C191 ๐ŸŒ (FNL) -306.587s
Before
-114.0 dBm -4.75 dB 2 MediumSlow 2025-09-29 03:38:57 View
Villalbilla02 (VBV2) -306.562s
Before
-109.0 dBm -1.00 dB 2 MediumSlow 2025-09-29 03:38:57 View
Kenobi23 QTH (5aec) -306.509s
Before
-109.0 dBm -3.00 dB 2 MediumSlow 2025-09-29 03:38:57 View
Meshtastic 18a4 (18a4) -306.221s
Before
Unknown Unknown 3 MediumSlow 2025-09-29 03:38:57 View
Will - Azuqueca (WAzq) -305.955s
Before
-108.0 dBm Unknown 2 MediumSlow 2025-09-29 03:38:57 View
Fuenca fijo (c578) -305.658s
Before
-120.0 dBm -7.00 dB 2 MediumSlow 2025-09-29 03:38:58 View
Machu Pichu (MaPi) -305.654s
Before
-95.0 dBm 2.50 dB 2 MediumSlow 2025-09-29 03:38:58 View
Meshtastic 1760 (1760) -305.627s
Before
-123.0 dBm -7.00 dB 2 MediumSlow 2025-09-29 03:38:58 View
Glitchs Azuqueca ๐Ÿ“ก (GltA) -305.623s
Before
-128.0 dBm -17.50 dB 3 MediumSlow 2025-09-29 03:38:58 View
Rodashtastic๐Ÿ—ผ๐ŸŒ (RDSt) -305.611s
Before
-114.0 dBm -6.75 dB 2 MediumSlow 2025-09-29 03:38:58 View
SkG@Home ๐Ÿ“ก๐ŸŒ (SkGH) -305.460s
Before
-126.0 dBm -17.00 dB 3 MediumSlow 2025-09-29 03:38:58 View
Monolito (MoN) -305.454s
Before
-64.0 dBm 8.50 dB 3 MediumSlow 2025-09-29 03:38:58 View
Zion ๐Ÿ—ผ (Zion) -305.423s
Before
-110.0 dBm -11.50 dB 3 MediumSlow 2025-09-29 03:38:58 View
18

Total Receptions

18

Unique Gateways