Packet #12291904 Success

POSITION_APP packet from Skynet_CLM (Sky) to !ffffffff

19
Total Receptions
19
Unique Gateways
5
Hop Count
28
Payload Bytes
Packet Information
Database ID: 12291904
Mesh Packet ID: 0x423b6125
Used for correlation across gateways
Timestamp: 2025-09-26 17:23:31 UTC
From Node: Skynet_CLM (Sky)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic 18a4 (18a4)
Channel: MediumSlow
RSSI: Unknown
SNR: Unknown
Hop Info: 5/5 hops
Start: 5, Limit: 0
Payload Data
Protocol: POSITION_APP
Size: 28 bytes
Decoded: Yes
Decoded Data:
Latitude:40.337408°
Longitude:-3.702784°
Altitude:595 m
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:28 bytes
Gateway:!c0c318a4
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:5 / 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
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !c0c318a4
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 1559870587
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 28 bytes size
hop_limit Not set uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1758907467
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 64
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 96
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1758907411.507717
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 (5 hops)
MQTT-Specific Fields
Gateway ID: !c0c318a4
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
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": 40.337408, "longitude": -3.702784, "altitude": 595, "sats_in_view": null, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!c0c318a4", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1559870587, "to": 4294967295, "id": 1111187749, "rx_time": 1758907467, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 0, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 64, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 96, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000b18150000cbfd18d3042509ccd66828017800800100b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403374080, "longitude_i": -37027840, "altitude": 595, "time": 1758907401, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d00000b18150000cbfd18d3042509ccd66828017800800100b8010f
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
Meshtastic 18a4 (18a4) Primary 0.000s
Reference 		Unknown Unknown 5 MediumSlow 2025-09-26 17:23:31 Current
Meshtastic c498📡🌐 (C498) -2.980s
Before 		-114.0 dBm -9.50 dB 1 MediumSlow 2025-09-26 17:23:28 View
Baldur Fijo (BalF) -2.970s
Before 		-104.0 dBm 4.00 dB 1 MediumSlow 2025-09-26 17:23:28 View
[TLG] 📡🌐🔋🔌 (tlg0) -2.107s
Before 		-111.0 dBm -4.25 dB 2 MediumSlow 2025-09-26 17:23:29 View
GRN1-Base🗼🌐 (GRN1) -2.092s
Before 		-100.0 dBm -2.75 dB 2 MediumSlow 2025-09-26 17:23:29 View
Wis 7d99 (7d99) -2.079s
Before 		-39.0 dBm 8.00 dB 2 MediumSlow 2025-09-26 17:23:29 View
Naranjo C191 🌐 (FNL) -1.862s
Before 		-123.0 dBm -15.25 dB 2 MediumSlow 2025-09-26 17:23:29 View
Venturada2🗼🌐☀️ (Vb2) -1.458s
Before 		-98.0 dBm -0.75 dB 3 MediumSlow 2025-09-26 17:23:30 View
g1bal (g1b0) -0.609s
Before 		-102.0 dBm 4.25 dB 4 MediumSlow 2025-09-26 17:23:30 View
Meshtastic 1760 (1760) -0.300s
Before 		-127.0 dBm -8.25 dB 4 MediumSlow 2025-09-26 17:23:31 View
Suop 📡 🌐 (SUOP) -0.266s
Before 		-117.0 dBm -9.50 dB 4 MediumSlow 2025-09-26 17:23:31 View
Monolito (MoN) -0.152s
Before 		-75.0 dBm 8.25 dB 4 MediumSlow 2025-09-26 17:23:31 View
Alma Tracker (AGPS) +0.230s
After 		-66.0 dBm 13.50 dB 4 MediumSlow 2025-09-26 17:23:31 View
Will - Azuqueca (WAzq) +1.934s
After 		-107.0 dBm -6.00 dB 4 MediumSlow 2025-09-26 17:23:33 View
Mec Rocket Meco (MRM) +1.947s
After 		-116.0 dBm -14.75 dB 4 MediumSlow 2025-09-26 17:23:33 View
Machu Pichu (MaPi) +2.234s
After 		-92.0 dBm 5.50 dB 4 MediumSlow 2025-09-26 17:23:33 View
Quass001 ☄️ (Q001) +3.399s
After 		-121.0 dBm -12.25 dB 5 MediumSlow 2025-09-26 17:23:34 View
🌐Charly Unid Movil🛰 (C181) +3.534s
After 		-117.0 dBm -13.50 dB 5 MediumSlow 2025-09-26 17:23:35 View
Kenobi23 QTH (5aec) +263.386s
After 		-99.0 dBm 1.25 dB 4 MediumSlow 2025-09-26 17:27:54 View
19

Total Receptions

19

Unique Gateways