Packet #10443522 Success

POSITION_APP packet from EA4HDZ Movil πŸ“± (AAVA) to !ffffffff

21
Total Receptions
18
Unique Gateways
3
Hop Count
37
Payload Bytes
Packet Information
Database ID: 10443522
Mesh Packet ID: 0x45a4efce
Used for correlation across gateways
Timestamp: 2025-09-13 17:04:44 UTC
From Node: EA4HDZ Movil πŸ“± (AAVA)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic fbec (fbec)
Channel: MediumSlow
RSSI: -124 dBm
SNR: -5.25 dBm
Hop Info: 3/4 hops
Start: 4, Limit: 1
Payload Data
Protocol: POSITION_APP
Size: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:40.815821Β°
Longitude:-3.748659Β°
Altitude:992 m
Satellites:3
Precision:13 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:37 bytes
Gateway:!7aa6fbec
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:3 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
βœ“ Direct LoRa transmission (not via MQTT)
βœ“ Custom channel: MediumSlow
+ 2 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 !7aa6fbec
Node ID format
channel_id MediumSlow
packet MeshPacket (37 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 382730848
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 3
POSITION_APP
enum
decoded.payload_length 37 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 -124.0 dBm
Signal strength at gateway
int32
rx_snr -5.25 dB
Signal quality at gateway
float
rx_time 1757783083
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 1757783084.7201738
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: MediumSlow
  • βœ“ Gateway node ID tracked
  • βœ“ Reduced position precision: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !7aa6fbec
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -124.0 dBm
SNR: -5.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:37 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.8158208, "longitude": -3.7486592, "altitude": 992, "sats_in_view": 3, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!7aa6fbec", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 382730848, "to": 4294967295, "id": 1168437198, "rx_time": 1757783083, "rx_snr": -5.25, "rx_rssi": -124, "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": 0, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00005418150000c4fd18e007253da4c568280258ea017863800190f4f30d980103b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 408158208, "longitude_i": -37486592, "altitude": 992, "time": 1757783101, "location_source": "LOC_INTERNAL", "PDOP": 234, "ground_speed": 99, "ground_track": 29162000, "sats_in_view": 3, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d00005418150000c4fd18e007253da4c568280258ea017863800190f4f30d980103b8010d
Hex Analysis:
Size:37 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
Meshtastic fbec (fbec) Primary 0.000s
Reference
-124.0 dBm -5.25 dB 3 MediumSlow 2025-09-13 17:04:44 Current
Venturada baseπŸ—ΌπŸŒ (Vb) -2.413s
Before
-111.0 dBm -2.00 dB 1 MediumSlow 2025-09-13 17:04:42 View
Perseo πŸ—ΌπŸŒ (nvm1) -0.874s
Before
-87.0 dBm 5.50 dB 3 MediumSlow 2025-09-13 17:04:43 View
Will - Azuqueca (WAzq) -0.871s
Before
-101.0 dBm -10.50 dB 3 MediumSlow 2025-09-13 17:04:43 View
Venturada2πŸ—ΌπŸŒβ˜€οΈ (Vb2) -0.866s
Before
-97.0 dBm -1.50 dB 3 MediumSlow 2025-09-13 17:04:43 View
Mec Rocket Meco (MRM) -0.858s
Before
-97.0 dBm 3.00 dB 3 MediumSlow 2025-09-13 17:04:43 View
Tlgo πŸ“‘πŸŒπŸ”‹πŸ”Œ (TLG0) -0.547s
Before
-78.0 dBm 8.25 dB 3 MediumSlow 2025-09-13 17:04:44 View
GRN1-BaseπŸ—ΌπŸŒ (GRN1) -0.514s
Before
-102.0 dBm 5.25 dB 3 MediumSlow 2025-09-13 17:04:44 View
SkG@Home πŸ—ΌπŸŒ (SkGH) -0.497s
Before
-121.0 dBm -12.50 dB 3 MediumSlow 2025-09-13 17:04:44 View
Glitchs Azuqueca πŸ“‘ (GltA) -0.491s
Before
-124.0 dBm -12.25 dB 3 MediumSlow 2025-09-13 17:04:44 View
🌐Charly Torre 3πŸ›° (C184) -0.349s
Before
-120.0 dBm -16.50 dB 3 MediumSlow 2025-09-13 17:04:44 View
@lazynoda cocidito πŸ₯΅ πŸ—ΌπŸŒ (LNCM) -0.065s
Before
-110.0 dBm -2.25 dB 3 MediumSlow 2025-09-13 17:04:44 View
RodashtasticπŸ—ΌπŸŒ (RDSt) -0.036s
Before
-112.0 dBm -4.25 dB 3 MediumSlow 2025-09-13 17:04:44 View
🌐Charly Unid MovilπŸ›° (C181) +0.198s
After
-116.0 dBm -12.00 dB 3 MediumSlow 2025-09-13 17:04:44 View
Suop πŸ“‘ 🌐 (SUOP) +0.680s
After
-112.0 dBm -4.00 dB 4 MediumSlow 2025-09-13 17:04:45 View
Ocumare_Home_πŸ“±βš‘ (RRN) +0.954s
After
-9.0 dBm 8.25 dB 4 MediumSlow 2025-09-13 17:04:45 View
Zion πŸ—Ό (Zion) +1.270s
After
-107.0 dBm -16.25 dB 4 MediumSlow 2025-09-13 17:04:45 View
Raor🐟 (PMI) +213.333s
After
-109.0 dBm -7.75 dB 3 MediumSlow 2025-09-13 17:08:18 View
Raor🐟 (PMI) +252.367s
After
-109.0 dBm -7.75 dB 3 MediumSlow 2025-09-13 17:08:57 View
Raor🐟 (PMI) +274.372s
After
-109.0 dBm -7.75 dB 3 MediumSlow 2025-09-13 17:09:19 View
Raor🐟 (PMI) +295.378s
After
-109.0 dBm -7.75 dB 3 MediumSlow 2025-09-13 17:09:40 View
21

Total Receptions

18

Unique Gateways