Packet #13133044 Success

POSITION_APP packet from EC4TR Pedrezuela (b76a) to Sierra norte Madrid ⛰️🗼🌞 (SNM)

24
Total Receptions
16
Unique Gateways
3
Hop Count
28
Payload Bytes
Packet Information
Database ID: 13133044
Mesh Packet ID: 0xd85aa771
Used for correlation across gateways
Timestamp: 2025-10-01 17:46:20 UTC
From Node: EC4TR Pedrezuela (b76a)
To Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: EA5GHE-09 (58a8)
Channel: MediumSlow
RSSI: -105 dBm
SNR: -14.5 dBm
Hop Info: 3/3 hops
Start: 3, Limit: 0
Payload Data
Protocol: POSITION_APP
Size: 28 bytes
Decoded: Yes
Decoded Data:
Latitude:40.710963°
Longitude:-3.643802°
Altitude:870 m
Precision:13 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:!ba6558a8
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:3 / 3
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
⚠ Multi-hop path visible (3 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !ba6558a8
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 2654844778
Source node ID 		uint32
to 1129719940
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 28 bytes size
hop_limit Not set uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -105.0 dBm
Signal strength at gateway 		int32
rx_snr -14.50 dB
Signal quality at gateway 		float
rx_time 1759340779
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 Not set uint32
tx_after Not set uint32
timestamp 1759340780.5662642
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
  • ✓ Reduced position precision: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !ba6558a8
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -105.0 dBm
SNR: -14.50 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": 40.7109632, "longitude": -3.6438016, "altitude": 870, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!ba6558a8", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2654844778, "to": 1129719940, "id": 3629819761, "rx_time": 1759340779, "rx_snr": -14.5, "rx_rssi": -105, "hop_limit": 0, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004418150000d4fd18e60625e468dd6828017800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407109632, "longitude_i": -36438016, "altitude": 870, "time": 1759340772, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d00004418150000d4fd18e60625e468dd6828017800800100b8010d
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
EA5GHE-09 (58a8) Primary 0.000s
Reference 		-105.0 dBm -14.50 dB 3 MediumSlow 2025-10-01 17:46:20 Current
Venturada2🗼🌐☀️ (Vb2) -4.938s
Before 		-84.0 dBm 7.00 dB 0 MediumSlow 2025-10-01 17:46:15 View
Perseo 📡🌐☀ (nvm1) -3.992s
Before 		-90.0 dBm Unknown 1 MediumSlow 2025-10-01 17:46:16 View
Baldur Fijo (BalF) -3.675s
Before 		-122.0 dBm -12.25 dB 1 MediumSlow 2025-10-01 17:46:16 View
Meshtastic 18a4 (18a4) -3.634s
Before 		-126.0 dBm -15.25 dB 1 MediumSlow 2025-10-01 17:46:16 View
Meshtastic 1760 (1760) -3.612s
Before 		-117.0 dBm -2.00 dB 1 MediumSlow 2025-10-01 17:46:16 View
Aldinra_7298_🗼 (AldP) -2.408s
Before 		-106.0 dBm -2.00 dB 2 MediumSlow 2025-10-01 17:46:18 View
Machu Pichu (MaPi) -2.348s
Before 		-103.0 dBm -4.25 dB 2 MediumSlow 2025-10-01 17:46:18 View
Trasto 🐰 Va (trva) -1.453s
Before 		-113.0 dBm -9.00 dB 2 MediumSlow 2025-10-01 17:46:19 View
[TLG] 📡🌐🔋🔌 (tlg0) -0.622s
Before 		-114.0 dBm -8.00 dB 2 MediumSlow 2025-10-01 17:46:19 View
Ethan TIDSA Valdemoro (TID) +0.256s
After 		-125.0 dBm -14.25 dB 3 MediumSlow 2025-10-01 17:46:20 View
Will - Azuqueca (WAzq) +274.611s
After 		-105.0 dBm -5.50 dB 3 MediumSlow 2025-10-01 17:50:55 View
Mec Rocket Meco (MRM) +274.623s
After 		-91.0 dBm 6.25 dB 3 MediumSlow 2025-10-01 17:50:55 View
Glitchs Azuqueca 📡 (GltA) +275.869s
After 		-121.0 dBm -11.50 dB 3 MediumSlow 2025-10-01 17:50:56 View
Meshtastic 2688 (2688) +372.766s
After 		-118.0 dBm -1.75 dB 3 MediumSlow 2025-10-01 17:52:33 View
Meshtastic 2688 (2688) +396.781s
After 		-118.0 dBm -1.75 dB 3 MediumSlow 2025-10-01 17:52:57 View
Meshtastic 2688 (2688) +417.796s
After 		-118.0 dBm -1.75 dB 3 MediumSlow 2025-10-01 17:53:18 View
Meshtastic 2688 (2688) +438.806s
After 		-118.0 dBm -1.75 dB 3 MediumSlow 2025-10-01 17:53:39 View
Meshtastic 2688 (2688) +449.809s
After 		-118.0 dBm -1.75 dB 3 MediumSlow 2025-10-01 17:53:50 View
Meshtastic 2688 (2688) +456.814s
After 		-118.0 dBm -1.75 dB 3 MediumSlow 2025-10-01 17:53:57 View
Meshtastic 2688 (2688) +464.821s
After 		-118.0 dBm -1.75 dB 3 MediumSlow 2025-10-01 17:54:05 View
Meshtastic 2688 (2688) +471.825s
After 		-118.0 dBm -1.75 dB 3 MediumSlow 2025-10-01 17:54:12 View
Meshtastic 2688 (2688) +472.827s
After 		-118.0 dBm -1.75 dB 3 MediumSlow 2025-10-01 17:54:13 View
Kenobi23 QTH (5aec) +722.853s
After 		-101.0 dBm 2.00 dB 1 MediumSlow 2025-10-01 17:58:23 View
24

Total Receptions

16

Unique Gateways