Packet #12477462 Success

POSITION_APP packet from Pedrezuela Fazer (Fzr) to !ffffffff

21
Total Receptions
20
Unique Gateways
1
Hop Count
37
Payload Bytes
Packet Information
Database ID: 12477462
Mesh Packet ID: 0xd7b16662
Used for correlation across gateways
Timestamp: 2025-09-27 18:42:56 UTC
From Node: Pedrezuela Fazer (Fzr)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: [TLG] 📡🌐🔋🔌 (tlg0)
Channel: MediumSlow
RSSI: -122 dBm
SNR: -15.75 dBm
Hop Info: 1/5 hops
Start: 5, Limit: 4
Payload Data
Protocol: POSITION_APP
Size: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:40.743731°
Longitude:-3.611034°
Altitude:848 m
Satellites:6
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:37 bytes
Gateway:!da638a24
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:1 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 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 !da638a24
Node ID format
channel_id MediumSlow
packet MeshPacket (37 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1129797380
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 37 bytes size
hop_limit 4
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -122.0 dBm
Signal strength at gateway 		int32
rx_snr -15.75 dB
Signal quality at gateway 		float
rx_time 1758998574
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 106
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1758998576.6991496
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: MediumSlow
  • ✓ 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 (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !da638a24
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -122.0 dBm
SNR: -15.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:37 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.7437312, "longitude": -3.6110336, "altitude": 848, "sats_in_view": 6, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!da638a24", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1129797380, "to": 4294967295, "id": 3618727522, "rx_time": 1758998574, "rx_snr": -15.75, "rx_rssi": -122, "hop_limit": 4, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 106, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004918150000d9fd18d006252e30d8682802588b0278028001f0e59110980106b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407437312, "longitude_i": -36110336, "altitude": 848, "time": 1758998574, "location_source": "LOC_INTERNAL", "PDOP": 267, "ground_speed": 2, "ground_track": 33846000, "sats_in_view": 6, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d00004918150000d9fd18d006252e30d8682802588b0278028001f0e59110980106b8010f
Hex Analysis:
Size:37 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
[TLG] 📡🌐🔋🔌 (tlg0) Primary 0.000s
Reference 		-122.0 dBm -15.75 dB 1 MediumSlow 2025-09-27 18:42:56 Current
Venturada2🗼🌐☀️ (Vb2) -0.351s
Before 		-81.0 dBm 7.25 dB 1 MediumSlow 2025-09-27 18:42:56 View
Meshtastic 1760 (1760) +0.575s
After 		-134.0 dBm -15.50 dB 2 MediumSlow 2025-09-27 18:42:57 View
g1bal (g1b0) +1.025s
After 		-99.0 dBm -3.25 dB 2 MediumSlow 2025-09-27 18:42:57 View
Suop 📡 🌐 (SUOP) +1.356s
After 		-113.0 dBm -4.75 dB 2 MediumSlow 2025-09-27 18:42:58 View
Kenobi23 QTH (5aec) +1.453s
After 		-99.0 dBm -2.25 dB 2 MediumSlow 2025-09-27 18:42:58 View
Malasaña Solar ☀️ (🌇) +1.554s
After 		-115.0 dBm -12.25 dB 3 MediumSlow 2025-09-27 18:42:58 View
G71NCH3-NB-MAD-02 (G71B) +1.823s
After 		-39.0 dBm 9.25 dB 3 MediumSlow 2025-09-27 18:42:58 View
Will - Azuqueca (WAzq) +1.857s
After 		-106.0 dBm -1.25 dB 1 MediumSlow 2025-09-27 18:42:58 View
Mec Rocket Meco (MRM) +1.861s
After 		-116.0 dBm -13.50 dB 1 MediumSlow 2025-09-27 18:42:58 View
Meshtastic 18a4 (18a4) +2.102s
After 		-53.0 dBm 11.75 dB 3 MediumSlow 2025-09-27 18:42:58 View
Machu Pichu (MaPi) +2.146s
After 		-93.0 dBm 2.25 dB 1 MediumSlow 2025-09-27 18:42:58 View
Fuenca fijo (c578) +2.159s
After 		-118.0 dBm -5.50 dB 1 MediumSlow 2025-09-27 18:42:58 View
Baldur Fijo (BalF) +2.175s
After 		-120.0 dBm -10.25 dB 1 MediumSlow 2025-09-27 18:42:58 View
Meshtastic c498📡🌐 (C498) +2.196s
After 		-121.0 dBm -15.75 dB 1 MediumSlow 2025-09-27 18:42:58 View
Naranjo C191 🌐 (FNL) +2.214s
After 		-113.0 dBm -5.25 dB 1 MediumSlow 2025-09-27 18:42:58 View
🌐Charly Unid Movil🛰 (C181) +2.409s
After 		-117.0 dBm -15.75 dB 1 MediumSlow 2025-09-27 18:42:59 View
TO_Cala_Base2🗼🌐☀️ (33C8) +2.959s
After 		-112.0 dBm -5.25 dB 2 MediumSlow 2025-09-27 18:42:59 View
Meshtastic 53fc (53fc) +3.905s
After 		-119.0 dBm -5.50 dB 2 MediumSlow 2025-09-27 18:43:00 View
Kenobi23 movil (5672) +506.797s
After 		-124.0 dBm -15.75 dB 2 MediumSlow 2025-09-27 18:51:23 View
Kenobi23 movil (5672) +528.814s
After 		-124.0 dBm -15.75 dB 2 MediumSlow 2025-09-27 18:51:45 View
21

Total Receptions

20

Unique Gateways