Packet #12290414 Success

POSITION_APP packet from SkG@Tracker 📱 (SkGT) to !ffffffff

19
Total Receptions
19
Unique Gateways
3
Hop Count
37
Payload Bytes
Packet Information
Database ID: 12290414
Mesh Packet ID: 0xa40ba546
Used for correlation across gateways
Timestamp: 2025-09-26 17:11:11 UTC
From Node: SkG@Tracker 📱 (SkGT)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Alma Tracker (AGPS)
Channel: MediumSlow
RSSI: -65 dBm
SNR: 12.0 dBm
Hop Info: 3/4 hops
Start: 4, Limit: 1
Payload Data
Protocol: POSITION_APP
Size: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:40.337408°
Longitude:-3.820749°
Altitude:795 m
Satellites:10
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:!1c7b9514
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:3 / 4
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 !1c7b9514
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 1555771960
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 1
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -65.0 dBm
Signal strength at gateway 		int32
rx_snr 12.00 dB
Signal quality at gateway 		float
rx_time 1758906671
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 164
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1758906671.6305282
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 (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !1c7b9514
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -65.0 dBm
SNR: 12.00 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": 40.337408, "longitude": -3.8207488, "altitude": 795, "sats_in_view": 10, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!1c7b9514", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1555771960, "to": 4294967295, "id": 2752226630, "rx_time": 1758906671, "rx_snr": 12.0, "rx_rssi": -65, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 164, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000b18150000b9fd189b06252ac9d6682802588e0178008001f08ae20d98010ab8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403374080, "longitude_i": -38207488, "altitude": 795, "time": 1758906666, "location_source": "LOC_INTERNAL", "PDOP": 142, "ground_speed": 0, "ground_track": 28870000, "sats_in_view": 10, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d00000b18150000b9fd189b06252ac9d6682802588e0178008001f08ae20d98010ab8010f
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
Alma Tracker (AGPS) Primary 0.000s
Reference 		-65.0 dBm 12.00 dB 3 MediumSlow 2025-09-26 17:11:11 Current
SkG@Home 📡🌐 (SkGH) -5.167s
Before 		-44.0 dBm 8.75 dB 0 MediumSlow 2025-09-26 17:11:06 View
[TLG] 📡🌐🔋🔌 (tlg0) -1.729s
Before 		-113.0 dBm -7.50 dB 2 MediumSlow 2025-09-26 17:11:09 View
Naranjo C191 🌐 (FNL) -1.313s
Before 		-119.0 dBm -12.50 dB 2 MediumSlow 2025-09-26 17:11:10 View
Will - Azuqueca (WAzq) -0.653s
Before 		-108.0 dBm -7.00 dB 3 MediumSlow 2025-09-26 17:11:10 View
Venturada2🗼🌐☀️ (Vb2) -0.650s
Before 		-95.0 dBm 2.25 dB 3 MediumSlow 2025-09-26 17:11:10 View
Machu Pichu (MaPi) -0.359s
Before 		-92.0 dBm 2.50 dB 3 MediumSlow 2025-09-26 17:11:11 View
Meshtastic 1760 (1760) -0.337s
Before 		-123.0 dBm -5.50 dB 3 MediumSlow 2025-09-26 17:11:11 View
Rodashtastic🗼🌐 (RDSt) -0.329s
Before 		-113.0 dBm -15.50 dB 3 MediumSlow 2025-09-26 17:11:11 View
Baldur Fijo (BalF) -0.327s
Before 		-117.0 dBm -8.25 dB 3 MediumSlow 2025-09-26 17:11:11 View
GRN1-Base🗼🌐 (GRN1) -0.295s
Before 		-89.0 dBm 5.50 dB 3 MediumSlow 2025-09-26 17:11:11 View
Meshtastic 18a4 (18a4) +0.023s
After 		Unknown Unknown 4 MediumSlow 2025-09-26 17:11:11 View
TO_Cala_Base2🗼🌐☀️ (33C8) +0.448s
After 		-111.0 dBm -17.25 dB 4 MediumSlow 2025-09-26 17:11:12 View
Wis 7d99 (7d99) +0.611s
After 		-45.0 dBm 9.25 dB 4 MediumSlow 2025-09-26 17:11:12 View
Mec Rocket Meco (MRM) +0.760s
After 		-34.0 dBm 9.50 dB 4 MediumSlow 2025-09-26 17:11:12 View
Trasto 🐰 Va (trva) +0.841s
After 		-110.0 dBm -14.00 dB 4 MediumSlow 2025-09-26 17:11:12 View
Quass001 ☄️ (Q001) +1.833s
After 		-122.0 dBm -11.50 dB 4 MediumSlow 2025-09-26 17:11:13 View
🌐Charly Unid Movil🛰 (C181) +310.028s
After 		-115.0 dBm -13.75 dB 4 MediumSlow 2025-09-26 17:16:21 View
Kenobi23 QTH (5aec) +993.235s
After 		-64.0 dBm 7.75 dB 4 MediumSlow 2025-09-26 17:27:44 View
19

Total Receptions

19

Unique Gateways