Packet #28190016 Success

POSITION_APP packet from Kala_CLM (Kala) to !ffffffff

26
Total Receptions
26
Unique Gateways
4
Hop Count
45
Payload Bytes
Packet Information
Database ID: 28190016
Mesh Packet ID: 0xd7c696a1
Used for correlation across gateways
Timestamp: 2025-12-17 03:38:48 UTC
From Node: Kala_CLM (Kala)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic 18a4 (18a4)
Channel: MediumFast
RSSI: Unknown
SNR: Unknown
Hop Info: 4/5 hops
Start: 5, Limit: 1
Relay Node: 60 1760
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: 45 bytes
Decoded: Yes
Decoded Data:
Latitude:40.311194°
Longitude:-3.440640°
Altitude:-52 m
Satellites:5
Precision:15 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:45 bytes
Gateway:!c0c318a4
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:4 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !c0c318a4
Node ID format
channel_id MediumFast
packet MeshPacket (45 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3877556925
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 45 bytes size
hop_limit 1
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1765942932
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 96
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765942728.8154168
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: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~729.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (4 hops)
MQTT-Specific Fields
Gateway ID: !c0c318a4
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:45 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.3111936, "longitude": -3.44064, "altitude": -52, "sats_in_view": 5, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!c0c318a4", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3877556925, "to": 4294967295, "id": 3620116129, "rx_time": 1765942932, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 1, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 64, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 96, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000718150000f3fd18ccffffffffffffffff0125c0254269280258dc0678258001b8a1a30f980105b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403111936, "longitude_i": -34406400, "altitude": -52, "time": 1765942720, "location_source": "LOC_INTERNAL", "PDOP": 860, "ground_speed": 37, "ground_track": 32035000, "sats_in_view": 5, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (45 bytes)
0d00000718150000f3fd18ccffffffffffffffff0125c0254269280258dc0678258001b8a1a30f980105b8010f
Hex Analysis:
Size:45 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 Relay Channel Timestamp Actions
Meshtastic 18a4 (18a4) Primary 0.000s
Reference 		Unknown Unknown 4 60 1760 MediumFast 2025-12-17 03:38:48 UTC Current
[samsepi0l] 📡🌐 (tlg0) -2.731s
Before 		-86.0 dBm 4.25 dB 1 fc 74fc , Anu2 MediumFast 2025-12-17 03:38:46 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -2.350s
Before 		-110.0 dBm -6.00 dB 1 fc Anu2 MediumFast 2025-12-17 03:38:46 UTC View
Meshtastic 26b0 (26b0) -1.111s
Before 		-86.0 dBm 1.25 dB 3 61 TO1 MediumFast 2025-12-17 03:38:47 UTC View
🎄 SkG@Home 📡🌐 (SkGH) -1.109s
Before 		-98.0 dBm -6.75 dB 3 61 TO1 MediumFast 2025-12-17 03:38:47 UTC View
Rodashtastic🗼🌐 (RDSt) -0.949s
Before 		-116.0 dBm -7.50 dB 2 e8 GRN1 MediumFast 2025-12-17 03:38:47 UTC View
Wake Up, Neo...📡 (NEO) -0.900s
Before 		-98.0 dBm -3.50 dB 3 f5 RPT4 MediumFast 2025-12-17 03:38:47 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -0.868s
Before 		-97.0 dBm -5.50 dB 3 f5 RPT4 MediumFast 2025-12-17 03:38:47 UTC View
Mec Rocket Meco (MRM) -0.806s
Before 		-115.0 dBm -13.50 dB 3 08 JPL2 MediumFast 2025-12-17 03:38:48 UTC View
Fenix (FENX) -0.794s
Before 		-117.0 dBm -12.00 dB 3 61 TO1 MediumFast 2025-12-17 03:38:48 UTC View
Ocumare Norte🗼🌐 (RRN) -0.574s
Before 		-101.0 dBm -6.00 dB 4 b0 Vbm , 26b0 MediumFast 2025-12-17 03:38:48 UTC View
Meshtastic 1760 (1760) -0.554s
Before 		-116.0 dBm 0.25 dB 3 f5 RPT4 MediumFast 2025-12-17 03:38:48 UTC View
Villalbilla02 (VBV2) -0.282s
Before 		-119.0 dBm -9.25 dB 4 b0 26b0 MediumFast 2025-12-17 03:38:48 UTC View
JAGO1_Cañaveral (JAGO) +0.375s
After 		Unknown 11.25 dB 5 70 JAG2 MediumFast 2025-12-17 03:38:49 UTC View
Eagle’s Nest (EAGL) +0.480s
After 		-98.0 dBm 8.50 dB 4 48 SMR1 MediumFast 2025-12-17 03:38:49 UTC View
🤖 Nicolas Cage 🌐 (Cage) +0.482s
After 		-73.0 dBm 9.75 dB 4 2d SkyB MediumFast 2025-12-17 03:38:49 UTC View
tizon (Sylv) +0.496s
After 		-114.0 dBm -5.00 dB 4 2d SkyB MediumFast 2025-12-17 03:38:49 UTC View
PXT_Home (PXT1) +0.543s
After 		-101.0 dBm 5.75 dB 5 fd BAS2 MediumFast 2025-12-17 03:38:49 UTC View
P3 iGate 🏠🌐 (P3N2) +0.806s
After 		-40.0 dBm 11.00 dB 5 25 P3N1 MediumFast 2025-12-17 03:38:49 UTC View
Villarejo01 (VIL1) +0.907s
After 		-36.0 dBm 11.00 dB 4 c6 d5c6 MediumFast 2025-12-17 03:38:49 UTC View
Meshtastic b2b4📡🌐 (b2b4) +1.180s
After 		-111.0 dBm -10.00 dB 4 2d SkyB MediumFast 2025-12-17 03:38:49 UTC View
Karabanchel_Baldur (KarB) +1.184s
After 		-94.0 dBm 3.00 dB 4 2d SkyB MediumFast 2025-12-17 03:38:49 UTC View
Quixote_JS8_5🗼🌐 (QXT5) +1.251s
After 		-114.0 dBm -4.50 dB 5 - MediumFast 2025-12-17 03:38:50 UTC View
Quixote_JS8_7 (QXT7) +1.253s
After 		-18.0 dBm 11.00 dB 5 - MediumFast 2025-12-17 03:38:50 UTC View
MakeSpaceMadrid (MKS) +1.477s
After 		-100.0 dBm 9.00 dB 5 d1 MKS2 MediumFast 2025-12-17 03:38:50 UTC View
ETH Goose (ET03) +1.623s
After 		-37.0 dBm 11.00 dB 4 41 ET01 MediumFast 2025-12-17 03:38:50 UTC View
26

Total Receptions

26

Unique Gateways