Packet #30123848 Success

POSITION_APP packet from PQPL1 (1ce5) to !ffffffff

20
Total Receptions
20
Unique Gateways
5
Hop Count
26
Payload Bytes
Packet Information
Database ID: 30123848
Mesh Packet ID: 0x0148aed0
Used for correlation across gateways
Timestamp: 2025-12-25 17:21:20 UTC
From Node: PQPL1 (1ce5)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Dexter T1 (DexT)
Channel: MediumFast
RSSI: -93 dBm
SNR: -9.0 dBm
Hop Info: 5/5 hops
Start: 5, Limit: 0
Relay Node: 21
Last byte of the last hop that relayed this packet
Payload Data
Protocol: POSITION_APP
Size: 26 bytes
Decoded: Yes
Decoded Data:
Latitude:40.343962°
Longitude:-3.748659°
Altitude:642 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:26 bytes
Gateway:!6985db5c
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:5 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 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 !6985db5c
Node ID format
channel_id MediumFast
packet MeshPacket (26 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1124343013
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 26 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 -93.0 dBm
Signal strength at gateway 		int32
rx_snr -9.00 dB
Signal quality at gateway 		float
rx_time 1766682383
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 33
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766683280.903859
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: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (5 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !6985db5c
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -93.0 dBm
SNR: -9.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:26 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.3439616, "longitude": -3.7486592, "altitude": 642, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!6985db5c", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1124343013, "to": 4294967295, "id": 21540560, "rx_time": 1766682383, "rx_snr": -9.0, "rx_rssi": -93, "hop_limit": 0, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 33, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000c18150000c4fd188205250c6f4d69280258b701b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403439616, "longitude_i": -37486592, "altitude": 642, "time": 1766682380, "location_source": "LOC_INTERNAL", "PDOP": 183, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (26 bytes)
0d00000c18150000c4fd188205250c6f4d69280258b701b8010d
Hex Analysis:
Size:26 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 Relay Channel Timestamp Actions
Dexter T1 (DexT) Primary 0.000s
Reference 		-93.0 dBm -9.00 dB 5 21 MediumFast 2025-12-25 17:21:20 UTC Current
Karabanchel_Baldur (KarB) -900.471s
Before 		-96.0 dBm -1.50 dB 1 1c 1f1c , 🐷 MediumFast 2025-12-25 17:06:20 UTC View
🤖 Nicolas Cage 🌐 (Cage) -900.181s
Before 		-97.0 dBm 7.75 dB 1 1c 🐷 MediumFast 2025-12-25 17:06:20 UTC View
tizon (Sylv) -900.147s
Before 		-104.0 dBm 4.00 dB 1 1c 🐷 MediumFast 2025-12-25 17:06:20 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -899.895s
Before 		-103.0 dBm -12.50 dB 2 88 KarB MediumFast 2025-12-25 17:06:21 UTC View
[samsepi0l] 📡🌐 (tlg0) -899.792s
Before 		-95.0 dBm -1.25 dB 2 - MediumFast 2025-12-25 17:06:21 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -899.440s
Before 		-106.0 dBm -7.75 dB 2 - MediumFast 2025-12-25 17:06:21 UTC View
Mec Rocket Meco (MRM) -899.377s
Before 		-110.0 dBm -12.00 dB 3 c0 sdAh MediumFast 2025-12-25 17:06:21 UTC View
Meshtastic b2b4📡🌐 (b2b4) -899.374s
Before 		-112.0 dBm -11.00 dB 2 28 DLCr MediumFast 2025-12-25 17:06:21 UTC View
JAGO1_Cañaveral (JAGO) -899.222s
Before 		-9.0 dBm 12.00 dB 3 70 JAG2 MediumFast 2025-12-25 17:06:21 UTC View
g1bal (g1b0) -899.126s
Before 		-107.0 dBm -1.75 dB 3 f5 RPT4 MediumFast 2025-12-25 17:06:21 UTC View
Venturada2 🗼🌞 (Vb2) -899.124s
Before 		-100.0 dBm 0.25 dB 3 f5 RPT4 MediumFast 2025-12-25 17:06:21 UTC View
Meshtastic 870c📡🌐 (870c) -899.031s
Before 		-96.0 dBm 7.25 dB 3 dc MediumFast 2025-12-25 17:06:21 UTC View
Meshtastic 1760 (1760) -898.787s
Before 		-126.0 dBm -7.00 dB 3 f5 RPT4 MediumFast 2025-12-25 17:06:22 UTC View
Meshtastic 18a4 (18a4) -898.503s
Before 		Unknown Unknown 4 60 1760 MediumFast 2025-12-25 17:06:22 UTC View
Ocumare Norte🗼🌐 (RRN) -898.422s
Before 		-106.0 dBm -10.75 dB 4 b0 Sir , Vb2 MediumFast 2025-12-25 17:06:22 UTC View
Eagle’s Nest (EAGL) -898.225s
Before 		-97.0 dBm 9.00 dB 3 a4 Raq1 MediumFast 2025-12-25 17:06:22 UTC View
Quass001 ☄️ (Q001) -897.493s
Before 		-45.0 dBm 11.00 dB 4 3a Q005 MediumFast 2025-12-25 17:06:23 UTC View
🎄 SkG@Home 📡🌐 (SkGH) -897.242s
Before 		-84.0 dBm -14.00 dB 5 56 8d56 , 3d56 MediumFast 2025-12-25 17:06:23 UTC View
P3 iGate 🏠🌐 (P3N2) -897.117s
Before 		-37.0 dBm 11.00 dB 5 25 P3N1 MediumFast 2025-12-25 17:06:23 UTC View
20

Total Receptions

20

Unique Gateways