Packet #13515211 Success

POSITION_APP packet from Malasaña Solar ☀️ (🌇) to Sierra norte Madrid ⛰️🗼🌞 (SNM)

11
Total Receptions
11
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
Database ID: 13515211
Mesh Packet ID: 0x90110c7f
Used for correlation across gateways
Timestamp: 2025-10-04 06:25:55 UTC
From Node: Malasaña Solar ☀️ (🌇)
To Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Malasaña Solar ☀️ (🌇)
Channel: MediumSlow
RSSI: Unknown
SNR: Unknown
Hop Info: 0/4 hops
Start: 4, Limit: 4
Payload Data
Protocol: POSITION_APP
Size: 28 bytes
Decoded: Yes
Decoded Data:
Latitude:40.426135°
Longitude:-3.701007°
Altitude:700 m
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:28 bytes
Gateway:!68ad5625
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:Unknown / 4
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
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !68ad5625
Node ID format
channel_id MediumSlow
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1756190245
Source node ID 		uint32
to 1129719940
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 28 bytes size
hop_limit 4
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1759559157
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 70
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 37
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759559155.6382747
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: MediumSlow
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
MQTT-Specific Fields
Gateway ID: !68ad5625
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Zero Hop Policy: Enabled
Direct gateway connection
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": 40.426135, "longitude": -3.701007, "altitude": 700, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!68ad5625", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1756190245, "to": 1129719940, "id": 2417036415, "rx_time": 1759559157, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 4, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 70, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 37, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0de6891818156a45cbfd18bc0525f5bde06828017800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 404261350, "longitude_i": -37010070, "altitude": 700, "time": 1759559157, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0de6891818156a45cbfd18bc0525f5bde06828017800800100b80120
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 Channel Timestamp Actions
Malasaña Solar ☀️ (🌇) Primary 0.000s
Reference 		Unknown Unknown 0 MediumSlow 2025-10-04 06:25:55 Current
🛒⛳ mk1.3 (cadi) +9.914s
After 		-107.0 dBm 0.50 dB 2 MediumSlow 2025-10-04 06:26:05 View
Zion 🗼 (Zion) +12.911s
After 		-106.0 dBm -2.75 dB 2 MediumSlow 2025-10-04 06:26:08 View
Venturada2🗼🌐☀️ (Vb2) +46.489s
After 		-93.0 dBm -0.50 dB 1 MediumSlow 2025-10-04 06:26:42 View
Meshtastic 1760 (1760) +46.804s
After 		-125.0 dBm -8.00 dB 1 MediumSlow 2025-10-04 06:26:42 View
Meshtastic 870c📡🌐 (870c) +46.819s
After 		-119.0 dBm -14.75 dB 1 MediumSlow 2025-10-04 06:26:42 View
Villalbilla02 (VBV2) +46.918s
After 		-106.0 dBm 2.00 dB 1 MediumSlow 2025-10-04 06:26:42 View
GRN1-Base🗼🌐 (GRN1) +47.824s
After 		-104.0 dBm -6.25 dB 1 MediumSlow 2025-10-04 06:26:43 View
[TLG] 📡🌐🔋🔌 (tlg0) +47.983s
After 		-106.0 dBm -1.25 dB 2 MediumSlow 2025-10-04 06:26:43 View
Meshtastic 18a4 (18a4) +48.020s
After 		-51.0 dBm 14.25 dB 2 MediumSlow 2025-10-04 06:26:43 View
Naranjo C191 🌐 (FNL) +52.471s
After 		-113.0 dBm -6.75 dB 4 MediumSlow 2025-10-04 06:26:48 View
11

Total Receptions

11

Unique Gateways