Packet #28440391 Success

POSITION_APP packet from jopsis_torrezno (🐷) to Sierra norte Madrid ⛰️🗼🌞 (SNM)

15
Total Receptions
15
Unique Gateways
0
Hop Count
34
Payload Bytes
Packet Information
Database ID: 28440391
Mesh Packet ID: 0xfa1c5461
Used for correlation across gateways
Timestamp: 2025-12-18 08:33:57 UTC
From Node: jopsis_torrezno (🐷)
To Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Skynet (Sky)
Channel: MediumFast
RSSI: -86 dBm
SNR: Unknown
Hop Info: 0/2 hops
Start: 2, Limit: 2
Relay Node: 1c 🐷
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: 34 bytes
Decoded: Yes
Decoded Data:
Latitude:40.316240°
Longitude:-3.705286°
Altitude:622 m
Satellites:7
Precision:32 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:34 bytes
Gateway:!7774870f
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:Unknown / 2
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Full GPS precision shared
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !7774870f
Node ID format
channel_id MediumFast
packet MeshPacket (34 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3644509980
Source node ID 		uint32
to 1129719940
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 34 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 2
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -86.0 dBm
Signal strength at gateway 		int32
rx_snr Not set float
rx_time 1766046836
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 28
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766046837.4534266
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !7774870f
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -86.0 dBm
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:34 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.3162398, "longitude": -3.7052858, "altitude": 622, "sats_in_view": 7, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!7774870f", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3644509980, "to": 1129719940, "id": 4196160609, "rx_time": 1766046836, "rx_snr": 0.0, "rx_rssi": -86, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 28, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d1ec5071815469ecafd18ee042547bc4369280258a9017800800100980107b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403162398, "longitude_i": -37052858, "altitude": 622, "time": 1766046791, "location_source": "LOC_INTERNAL", "PDOP": 169, "ground_speed": 0, "ground_track": 0, "sats_in_view": 7, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (34 bytes)
0d1ec5071815469ecafd18ee042547bc4369280258a9017800800100980107b80120
Hex Analysis:
Size:34 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
Skynet (Sky) Primary 0.000s
Reference 		-86.0 dBm Unknown 0 1c 🐷 MediumFast 2025-12-18 08:33:57 UTC Current
🤖 Nicolas Cage 🌐 (Cage) -0.003s
Before 		-95.0 dBm 4.25 dB 0 1c 🐷 MediumFast 2025-12-18 08:33:57 UTC View
tizon (Sylv) +0.076s
After 		-106.0 dBm 1.50 dB 0 1c 🐷 MediumFast 2025-12-18 08:33:57 UTC View
Getafe ☀️ (GTF) +0.096s
After 		-119.0 dBm -9.00 dB 0 1c 🐷 MediumFast 2025-12-18 08:33:57 UTC View
Malasaña Solar ☀️ (🌇) +0.573s
After 		-110.0 dBm -14.75 dB 1 88 KarB , FENX MediumFast 2025-12-18 08:33:58 UTC View
🎄 SkG@Home 📡🌐 (SkGH) +0.717s
After 		-95.0 dBm -6.25 dB 2 aa CR1 MediumFast 2025-12-18 08:33:58 UTC View
Karabanchel_Baldur (KarB) +0.769s
After 		-94.0 dBm 2.25 dB 0 1c 🐷 MediumFast 2025-12-18 08:33:58 UTC View
Meshtastic 870c📡🌐 (870c) +1.107s
After 		-95.0 dBm 9.25 dB 2 dc d0dc MediumFast 2025-12-18 08:33:58 UTC View
Fenix (FENX) +1.451s
After 		-117.0 dBm -11.00 dB 0 1c 🐷 MediumFast 2025-12-18 08:33:58 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) +1.541s
After 		-101.0 dBm -10.25 dB 1 88 KarB MediumFast 2025-12-18 08:33:58 UTC View
Justicia Meshtastic b0e4 🏢 (b0e4) +3.170s
After 		-119.0 dBm -11.75 dB 1 25 🌇 MediumFast 2025-12-18 08:34:00 UTC View
ETH Goose (ET03) +23.414s
After 		-117.0 dBm -13.25 dB 2 72 Knb1 MediumFast 2025-12-18 08:34:20 UTC View
Eagle’s Nest (EAGL) +24.657s
After 		-110.0 dBm Unknown 2 a4 Raq1 MediumFast 2025-12-18 08:34:22 UTC View
[samsepi0l] 📡🌐 (tlg0) +25.624s
After 		-88.0 dBm -1.50 dB 2 a4 Raq1 MediumFast 2025-12-18 08:34:23 UTC View
Meshtastic ca85 (ca85) +29.362s
After 		-106.0 dBm -11.50 dB 1 88 KarB MediumFast 2025-12-18 08:34:26 UTC View
15

Total Receptions

15

Unique Gateways