Packet #28190779 Success

POSITION_APP packet from Kala_CLM (Kala) to !ffffffff

25
Total Receptions
25
Unique Gateways
3
Hop Count
37
Payload Bytes
Packet Information
Database ID: 28190779
Mesh Packet ID: 0xf3f572a2
Used for correlation across gateways
Timestamp: 2025-12-17 03:44:18 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: 3/5 hops
Start: 5, Limit: 2
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: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:40.311194°
Longitude:-3.440640°
Altitude:596 m
Satellites:4
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:37 bytes
Gateway:!c0c318a4
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:3 / 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 (37 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 37 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1765943262
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 1765943058.2442734
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 (3 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:37 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.3111936, "longitude": -3.44064, "altitude": 596, "sats_in_view": 4, "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": 4092949154, "rx_time": 1765943262, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 2, "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": "0d00000718150000f3fd18d404250b274269280258d90878068001a8e68a07980104b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403111936, "longitude_i": -34406400, "altitude": 596, "time": 1765943051, "location_source": "LOC_INTERNAL", "PDOP": 1113, "ground_speed": 6, "ground_track": 14857000, "sats_in_view": 4, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d00000718150000f3fd18d404250b274269280258d90878068001a8e68a07980104b8010f
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 Relay Channel Timestamp Actions
Meshtastic 18a4 (18a4) Primary 0.000s
Reference 		Unknown Unknown 3 60 1760 MediumFast 2025-12-17 03:44:18 UTC Current
Venturada2🗼🌐☀️ (Vb2) -1.037s
Before 		-90.0 dBm -17.00 dB 1 fc Anu2 MediumFast 2025-12-17 03:44:17 UTC View
Ocumare Norte🗼🌐 (RRN) -0.763s
Before 		-101.0 dBm -5.50 dB 2 b0 Vbm , Vb2 MediumFast 2025-12-17 03:44:17 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -0.732s
Before 		-79.0 dBm 8.50 dB 2 b0 Vbm , Vb2 MediumFast 2025-12-17 03:44:17 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -0.671s
Before 		-109.0 dBm -11.75 dB 1 fc Anu2 MediumFast 2025-12-17 03:44:17 UTC View
Meshtastic 1760 (1760) -0.418s
Before 		-131.0 dBm -10.75 dB 2 b0 Vbm , Vb2 MediumFast 2025-12-17 03:44:17 UTC View
Mec Rocket Meco (MRM) -0.247s
Before 		-112.0 dBm -10.50 dB 3 c0 sdAh MediumFast 2025-12-17 03:44:17 UTC View
Villalbilla02 (VBV2) -0.242s
Before 		-119.0 dBm -9.75 dB 2 b0 Vb2 MediumFast 2025-12-17 03:44:18 UTC View
JAGO1_Cañaveral (JAGO) +0.068s
After 		Unknown 11.75 dB 3 70 JAG2 MediumFast 2025-12-17 03:44:18 UTC View
Wake Up, Neo...📡 (NEO) +0.281s
After 		-98.0 dBm -2.25 dB 3 f5 RPT4 MediumFast 2025-12-17 03:44:18 UTC View
[samsepi0l] 📡🌐 (tlg0) +0.435s
After 		-76.0 dBm -5.75 dB 3 fc 74fc , Anu2 MediumFast 2025-12-17 03:44:18 UTC View
Fenix (FENX) +0.491s
After 		-117.0 dBm -10.50 dB 2 61 TO1 MediumFast 2025-12-17 03:44:18 UTC View
flau pruebas (🏐) +0.563s
After 		-92.0 dBm 9.00 dB 3 f5 RPT4 MediumFast 2025-12-17 03:44:18 UTC View
P3 iGate 🏠🌐 (P3N2) +0.768s
After 		-40.0 dBm 11.25 dB 3 25 P3N1 MediumFast 2025-12-17 03:44:19 UTC View
Eagle’s Nest (EAGL) +1.002s
After 		-98.0 dBm 8.50 dB 3 48 SMR1 MediumFast 2025-12-17 03:44:19 UTC View
Villarejo01 (VIL1) +1.279s
After 		-35.0 dBm 11.25 dB 3 c6 d5c6 MediumFast 2025-12-17 03:44:19 UTC View
Karabanchel_Baldur (KarB) +1.306s
After 		-94.0 dBm 3.75 dB 3 2d SkyB MediumFast 2025-12-17 03:44:19 UTC View
Meshtastic b2b4📡🌐 (b2b4) +1.311s
After 		-112.0 dBm -10.25 dB 3 2d SkyB MediumFast 2025-12-17 03:44:19 UTC View
🤖 Nicolas Cage 🌐 (Cage) +1.609s
After 		-74.0 dBm 10.75 dB 3 2d SkyB MediumFast 2025-12-17 03:44:19 UTC View
tizon (Sylv) +1.623s
After 		-114.0 dBm -6.00 dB 3 2d SkyB MediumFast 2025-12-17 03:44:19 UTC View
Varela Bot 🏡🤖 (🤖) +1.674s
After 		-79.0 dBm 8.50 dB 4 1c 🏡 MediumFast 2025-12-17 03:44:19 UTC View
ETH Goose (ET03) +1.801s
After 		-36.0 dBm 10.75 dB 3 41 ET01 MediumFast 2025-12-17 03:44:20 UTC View
PXT_Home (PXT1) +1.945s
After 		-97.0 dBm 8.50 dB 3 fd BAS2 MediumFast 2025-12-17 03:44:20 UTC View
EA4GGL (4GGL) +1.964s
After 		-130.0 dBm -12.50 dB 4 25 🌇 MediumFast 2025-12-17 03:44:20 UTC View
MakeSpaceMadrid (MKS) +2.675s
After 		-102.0 dBm 8.25 dB 5 d1 MKS2 MediumFast 2025-12-17 03:44:20 UTC View
25

Total Receptions

25

Unique Gateways