Packet #27785563 Success

POSITION_APP packet from Venturada2 🗼🌞 (Vb2) to Sierra norte Madrid ⛰️🗼🌞 (SNM)

16
Total Receptions
16
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
Database ID: 27785563
Mesh Packet ID: 0xd315732d
Used for correlation across gateways
Timestamp: 2025-12-15 08:56:57 UTC
From Node: Venturada2 🗼🌞 (Vb2)
To Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Ocumare Norte🗼🌐 (RRN)
Channel: MediumFast
RSSI: -109 dBm
SNR: -13.25 dBm
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: b0 Vbm , Vb2
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: 28 bytes
Decoded: Yes
Decoded Data:
Latitude:40.789606°
Longitude:-3.460301°
Altitude:1005 m
Precision:11 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:28 bytes
Gateway:!b2a7c8d0
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 4 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !b2a7c8d0
Node ID format
channel_id MediumFast
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2687837872
Source node ID 		uint32
to 1129719940
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 28 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -109.0 dBm
Signal strength at gateway 		int32
rx_snr -13.25 dB
Signal quality at gateway 		float
rx_time 1765789012
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 176
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765789017.3774192
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Targeted to specific node
  • ✓ Custom channel: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~11700.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b2a7c8d0
Position Precision: 11 bits (~11700.0m accuracy)
Position precision meters: 11700.0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -109.0 dBm
SNR: -13.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:28 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.7896064, "longitude": -3.4603008, "altitude": 1005, "sats_in_view": null, "precision_bits": 11 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b2a7c8d0", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2687837872, "to": 1129719940, "id": 3541398317, "rx_time": 1765789012, "rx_snr": -13.25, "rx_rssi": -109, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 176, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00005018150000f0fd18ed072554cd3f6928017800800100b8010b", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407896064, "longitude_i": -34603008, "altitude": 1005, "time": 1765789012, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 11, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d00005018150000f0fd18ed072554cd3f6928017800800100b8010b
Hex Analysis:
Size:28 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
Ocumare Norte🗼🌐 (RRN) Primary 0.000s
Reference 		-109.0 dBm -13.25 dB 0 b0 Vbm , Vb2 MediumFast 2025-12-15 08:56:57 UTC Current
JAGO1_Cañaveral (JAGO) -3.725s
Before 		-122.0 dBm -12.50 dB 0 b0 Vbm , PUPM , Vb2 MediumFast 2025-12-15 08:56:53 UTC View
Venturada2 🗼🌞 (Vb2) -2.985s
Before 		Unknown Unknown 0 b0 Vbm , PUPM , Vb2 MediumFast 2025-12-15 08:56:54 UTC View
NodeJPL6 (JPL6) -2.606s
Before 		-99.0 dBm -12.50 dB 0 b0 Vb2 MediumFast 2025-12-15 08:56:54 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -2.356s
Before 		-96.0 dBm 1.75 dB 0 b0 Vbm , Vb2 MediumFast 2025-12-15 08:56:55 UTC View
🎄 SkG@Home 📡🌐 (SkGH) -1.298s
Before 		-82.0 dBm 4.75 dB 1 56 8d56 , 3d56 MediumFast 2025-12-15 08:56:56 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -0.779s
Before 		-79.0 dBm 7.75 dB 0 b0 Vbm , Vb2 MediumFast 2025-12-15 08:56:56 UTC View
PXT_Home (PXT1) +0.051s
After 		-105.0 dBm 1.25 dB 2 11 BAS1 MediumFast 2025-12-15 08:56:57 UTC View
Fenix (FENX) +0.347s
After 		-119.0 dBm -12.50 dB 1 61 TO1 MediumFast 2025-12-15 08:56:57 UTC View
P3 iGate 🏠🌐 (P3N2) +0.970s
After 		-38.0 dBm 11.25 dB 2 25 P3N1 MediumFast 2025-12-15 08:56:58 UTC View
Rodashtastic🗼🌐 (RDSt) +1.040s
After 		-115.0 dBm -7.00 dB 1 e8 GRN1 MediumFast 2025-12-15 08:56:58 UTC View
ETH Maverick (ET01) +1.413s
After 		-106.0 dBm -5.00 dB 1 61 TO1 MediumFast 2025-12-15 08:56:58 UTC View
ETH Goose (ET03) +2.530s
After 		-113.0 dBm -9.75 dB 2 72 Knb1 MediumFast 2025-12-15 08:56:59 UTC View
Quass001 ☄️ (Q001) +2.728s
After 		-51.0 dBm 10.50 dB 2 3a Q005 MediumFast 2025-12-15 08:57:00 UTC View
Eagle’s Nest (EAGL) +3.224s
After 		-115.0 dBm -6.25 dB 2 74 MediumFast 2025-12-15 08:57:00 UTC View
Quixote_JS8_7 (QXT7) +4.102s
After 		-18.0 dBm 11.25 dB 3 - MediumFast 2025-12-15 08:57:01 UTC View
16

Total Receptions

16

Unique Gateways