Packet #27792705 Success

POSITION_APP packet from Kala_CLM (Kala) to !ffffffff

22
Total Receptions
22
Unique Gateways
5
Hop Count
45
Payload Bytes
Packet Information
Database ID: 27792705
Mesh Packet ID: 0x47297d9b
Used for correlation across gateways
Timestamp: 2025-12-15 09:36:05 UTC
From Node: Kala_CLM (Kala)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic b2b4📡🌐 (b2b4)
Channel: MediumFast
RSSI: -108 dBm
SNR: -4.75 dBm
Hop Info: 5/5 hops
Start: 5, Limit: 0
Relay Node: 2d SkyB
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:40.298086°
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:!433db2b4
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:5 / 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
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !433db2b4
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 Not set uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi -108.0 dBm
Signal strength at gateway 		int32
rx_snr -4.75 dB
Signal quality at gateway 		float
rx_time 1765791363
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 45
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765791365.3949862
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 (5 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !433db2b4
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -108.0 dBm
SNR: -4.75 dB
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": 40.2980864, "longitude": -3.44064, "altitude": -52, "sats_in_view": 5, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!433db2b4", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3877556925, "to": 4294967295, "id": 1193901467, "rx_time": 1765791363, "rx_snr": -4.75, "rx_rssi": -108, "hop_limit": 0, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 45, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000518150000f3fd18ccffffffffffffffff01257ed63f69280258a10878058001f090ef08980105b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 402980864, "longitude_i": -34406400, "altitude": -52, "time": 1765791358, "location_source": "LOC_INTERNAL", "PDOP": 1057, "ground_speed": 5, "ground_track": 18598000, "sats_in_view": 5, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (45 bytes)
0d00000518150000f3fd18ccffffffffffffffff01257ed63f69280258a10878058001f090ef08980105b8010f
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 b2b4📡🌐 (b2b4) Primary 0.000s
Reference 		-108.0 dBm -4.75 dB 5 2d SkyB MediumFast 2025-12-15 09:36:05 UTC Current
GRN1-Base🗼🌐 🔋 (GRN1) -4.600s
Before 		-110.0 dBm -12.25 dB 1 fc Anu2 MediumFast 2025-12-15 09:36:00 UTC View
Rodashtastic🗼🌐 (RDSt) -3.489s
Before 		-115.0 dBm -6.75 dB 2 e8 GRN1 MediumFast 2025-12-15 09:36:01 UTC View
NodeJPL6 (JPL6) -3.229s
Before 		-99.0 dBm -12.75 dB 3 b0 Vb2 MediumFast 2025-12-15 09:36:02 UTC View
Eagle’s Nest (EAGL) -3.100s
Before 		-109.0 dBm 0.25 dB 3 a4 Raq1 MediumFast 2025-12-15 09:36:02 UTC View
Venturada2 🗼🌞 (Vb2) -2.534s
Before 		-104.0 dBm -4.00 dB 2 e8 GRN1 , LCG1 MediumFast 2025-12-15 09:36:02 UTC View
Ocumare Norte🗼🌐 (RRN) -2.522s
Before 		-16.0 dBm 11.00 dB 4 6f RRN4 MediumFast 2025-12-15 09:36:02 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -2.301s
Before 		-80.0 dBm 3.50 dB 3 b0 Vbm , Vb2 MediumFast 2025-12-15 09:36:03 UTC View
ETH Maverick (ET01) -1.842s
Before 		-94.0 dBm 5.50 dB 4 72 Knb1 MediumFast 2025-12-15 09:36:03 UTC View
Meshtastic 1760 (1760) -1.818s
Before 		-116.0 dBm -1.00 dB 4 f5 RPT4 MediumFast 2025-12-15 09:36:03 UTC View
Karabanchel_Baldur (KarB) -1.742s
Before 		-94.0 dBm 1.00 dB 4 1c 🐷 MediumFast 2025-12-15 09:36:03 UTC View
ETH Goose (ET03) -1.722s
Before 		-116.0 dBm -12.50 dB 4 72 Knb1 MediumFast 2025-12-15 09:36:03 UTC View
tizon (Sylv) -1.416s
Before 		-108.0 dBm -0.25 dB 4 1c 🐷 MediumFast 2025-12-15 09:36:03 UTC View
Getafe ☀️ (GTF) -1.374s
Before 		-120.0 dBm -9.25 dB 4 1c 🐷 MediumFast 2025-12-15 09:36:04 UTC View
JAGO1_Cañaveral (JAGO) -1.268s
Before 		-114.0 dBm -4.50 dB 5 84 SNM , Ancr , 📡 MediumFast 2025-12-15 09:36:04 UTC View
Varela Bot 🏡🤖 (🤖) -1.227s
Before 		-75.0 dBm 9.50 dB 4 1c 🏡 MediumFast 2025-12-15 09:36:04 UTC View
P3 iGate 🏠🌐 (P3N2) -1.152s
Before 		-38.0 dBm 11.25 dB 4 25 P3N1 MediumFast 2025-12-15 09:36:04 UTC View
Skynet (Sky) -1.020s
Before 		-81.0 dBm -11.50 dB 4 1c 🐷 MediumFast 2025-12-15 09:36:04 UTC View
Meshtastic 18a4 (18a4) -0.774s
Before 		-58.0 dBm 13.00 dB 5 60 1760 MediumFast 2025-12-15 09:36:04 UTC View
Fenix (FENX) -0.684s
Before 		-117.0 dBm -13.25 dB 3 61 TO1 MediumFast 2025-12-15 09:36:04 UTC View
EA4GGL (4GGL) +1.698s
After 		-126.0 dBm -13.00 dB 5 25 🌇 MediumFast 2025-12-15 09:36:07 UTC View
Justicia Meshtastic b0e4 🏢 (b0e4) +1.718s
After 		-117.0 dBm -10.00 dB 5 25 🌇 MediumFast 2025-12-15 09:36:07 UTC View
22

Total Receptions

22

Unique Gateways