Packet #10682660 Success

POSITION_APP packet from 🌐Charly Unid Movil🛰 (C181) to !ffffffff

21
Total Receptions
21
Unique Gateways
3
Hop Count
37
Payload Bytes
Packet Information
Database ID: 10682660
Mesh Packet ID: 0xbf5bb158
Used for correlation across gateways
Timestamp: 2025-09-15 08:40:19 UTC
From Node: 🌐Charly Unid Movil🛰 (C181)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic 1760 (1760)
Channel: MediumSlow
RSSI: -123 dBm
SNR: -4.75 dBm
Hop Info: 3/4 hops
Start: 4, Limit: 1
Payload Data
Protocol: POSITION_APP
Size: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:40.343142°
Longitude:-3.706880°
Altitude:704 m
Satellites:5
Precision:18 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:37 bytes
Gateway:!c0c31760
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:3 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !c0c31760
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 2956846908
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 -123.0 dBm
Signal strength at gateway 		int32
rx_snr -4.75 dB
Signal quality at gateway 		float
rx_time 1757925616
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 8
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1757925619.306591
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)
  • ✓ Custom channel: MediumSlow
  • ✓ 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 (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !c0c31760
Position Precision: 18 bits (~91.0m accuracy)
Position precision meters: 91.0
Signal Metrics: RSSI: -123.0 dBm
SNR: -4.75 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": 40.3431424, "longitude": -3.70688, "altitude": 704, "sats_in_view": 5, "precision_bits": 18 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!c0c31760", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2956846908, "to": 4294967295, "id": 3210457432, "rx_time": 1757925616, "rx_snr": -4.75, "rx_rssi": -123, "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": 8, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00e00b18150060cafd18c00525f5d0c76828025887027803800180add608980105b80112", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403431424, "longitude_i": -37068800, "altitude": 704, "time": 1757925621, "location_source": "LOC_INTERNAL", "PDOP": 263, "ground_speed": 3, "ground_track": 18192000, "sats_in_view": 5, "precision_bits": 18, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d00e00b18150060cafd18c00525f5d0c76828025887027803800180add608980105b80112
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

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
Meshtastic 1760 (1760) Primary 0.000s
Reference 		-123.0 dBm -4.75 dB 3 MediumSlow 2025-09-15 08:40:19 Current
🌐Charly Unid Movil🛰 (C181) -6.902s
Before 		Unknown Unknown 0 MediumSlow 2025-09-15 08:40:12 View
Venturada2🗼🌐☀️ (Vb2) -2.759s
Before 		-115.0 dBm -16.75 dB 2 MediumSlow 2025-09-15 08:40:16 View
Perseo 📡🌐☀ (nvm1) -1.935s
Before 		-100.0 dBm -9.75 dB 3 MediumSlow 2025-09-15 08:40:17 View
GRN1-Base🗼🌐 (GRN1) -1.609s
Before 		-109.0 dBm -2.00 dB 3 MediumSlow 2025-09-15 08:40:17 View
[TLG] 📡🌐🔋🔌 (tlg0) -1.604s
Before 		-115.0 dBm -8.50 dB 3 MediumSlow 2025-09-15 08:40:17 View
SkG@Home 📡🌐 (SkGH) -1.366s
Before 		-123.0 dBm -16.00 dB 3 MediumSlow 2025-09-15 08:40:17 View
Will - Azuqueca (WAzq) -1.322s
Before 		-112.0 dBm -13.25 dB 3 MediumSlow 2025-09-15 08:40:17 View
@lazynoda cocidito 🥵 🗼🌐 (LNCM) -1.020s
Before 		-108.0 dBm 3.50 dB 3 MediumSlow 2025-09-15 08:40:18 View
Rodashtastic🗼🌐 (RDSt) -1.009s
Before 		-112.0 dBm -3.25 dB 3 MediumSlow 2025-09-15 08:40:18 View
Meshtastic fbec (fbec) -0.971s
Before 		-128.0 dBm -7.75 dB 3 MediumSlow 2025-09-15 08:40:18 View
Meshtastic 18a4 (18a4) -0.870s
Before 		Unknown Unknown 4 MediumSlow 2025-09-15 08:40:18 View
Armitage (LREC) -0.720s
Before 		-136.0 dBm -15.00 dB 3 MediumSlow 2025-09-15 08:40:18 View
Mec Rocket Meco (MRM) -0.395s
Before 		-35.0 dBm 9.25 dB 4 MediumSlow 2025-09-15 08:40:18 View
Monolito (MoN) -0.228s
Before 		-64.0 dBm 8.25 dB 4 MediumSlow 2025-09-15 08:40:19 View
Muev.E 📱🧭 (MVE) +0.128s
After 		-99.0 dBm -15.75 dB 4 MediumSlow 2025-09-15 08:40:19 View
Zion 🗼 (Zion) +0.136s
After 		-110.0 dBm -16.75 dB 4 MediumSlow 2025-09-15 08:40:19 View
Vaguada Portable (Vgda) +0.832s
After 		-105.0 dBm 1.25 dB 4 MediumSlow 2025-09-15 08:40:20 View
Meshtastic a500 (a500) +17.897s
After 		-104.0 dBm 4.25 dB 4 MediumSlow 2025-09-15 08:40:37 View
Ocumare_Base_🗼🌐 (CATA) +964.737s
After 		-118.0 dBm -14.75 dB 3 MediumSlow 2025-09-15 08:56:24 View
Venturada base🗼🌐 (Vb) +6330.062s
After 		-93.0 dBm 8.00 dB 3 MediumSlow 2025-09-15 10:25:49 View
21

Total Receptions

21

Unique Gateways