Packet #29826514 Success

POSITION_APP packet from EA4ENG 718c (4ENG) to !ffffffff

14
Total Receptions
14
Unique Gateways
3
Hop Count
28
Payload Bytes
Packet Information
Database ID: 29826514
Mesh Packet ID: 0x4017748a
Used for correlation across gateways
Timestamp: 2025-12-24 12:47:30 UTC
From Node: EA4ENG 718c (4ENG)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: GRN1-Base🗼🌐 🔋 (GRN1)
Channel: MediumFast
RSSI: -105 dBm
SNR: -6.5 dBm
Hop Info: 3/4 hops
Start: 4, Limit: 1
Relay Node: None
Payload Data
Protocol: POSITION_APP
Size: 28 bytes
Decoded: Yes
Decoded Data:
Latitude:40.371246°
Longitude:-3.621104°
Altitude:625 m
Precision:32 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:!43b706e8
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:3 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !43b706e8
Node ID format
channel_id MediumFast
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1128100236
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 1
Remaining hops allowed 		uint32
hop_start 4
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 -6.50 dB
Signal quality at gateway 		float
rx_time 1766580448
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 1766580450.5435896
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
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ Multi-hop path visible (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !43b706e8
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -105.0 dBm
SNR: -6.50 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": 40.3712457, "longitude": -3.621104, "altitude": 625, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!43b706e8", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128100236, "to": 4294967295, "id": 1075278986, "rx_time": 1766580448, "rx_snr": -6.5, "rx_rssi": -105, "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": 0, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0dc929101815a076d7fd18f10425dce04b6928037800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403712457, "longitude_i": -36211040, "altitude": 625, "time": 1766580444, "location_source": "LOC_EXTERNAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0dc929101815a076d7fd18f10425dce04b6928037800800100b80120
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 Relay Channel Timestamp Actions
GRN1-Base🗼🌐 🔋 (GRN1) Primary 0.000s
Reference 		-105.0 dBm -6.50 dB 3 - MediumFast 2025-12-24 12:47:30 UTC Current
Karabanchel_Baldur (KarB) -1.140s
Before 		-95.0 dBm 0.25 dB 2 2d SkyB MediumFast 2025-12-24 12:47:29 UTC View
Skynet (Sky) -0.894s
Before 		-49.0 dBm 11.25 dB 2 2d SkyB MediumFast 2025-12-24 12:47:29 UTC View
🤖 Nicolas Cage 🌐 (Cage) -0.826s
Before 		-63.0 dBm 11.00 dB 2 2d SkyB MediumFast 2025-12-24 12:47:29 UTC View
tizon (Sylv) -0.580s
Before 		Unknown Unknown 3 0c Sylv MediumFast 2025-12-24 12:47:29 UTC View
[samsepi0l] 📡🌐 (tlg0) -0.382s
Before 		-95.0 dBm -2.25 dB 3 - MediumFast 2025-12-24 12:47:30 UTC View
Meshtastic b2b4📡🌐 (b2b4) -0.142s
Before 		-112.0 dBm -11.75 dB 2 2d SkyB MediumFast 2025-12-24 12:47:30 UTC View
0001 (49ac) +0.387s
After 		-59.0 dBm 10.50 dB 4 bb 03bb MediumFast 2025-12-24 12:47:30 UTC View
JAGO1_Cañaveral (JAGO) +0.414s
After 		-120.0 dBm -13.25 dB 4 20 PMV4 MediumFast 2025-12-24 12:47:30 UTC View
Venturada2 🗼🌞 (Vb2) +0.417s
After 		-90.0 dBm 6.25 dB 4 20 PMV4 MediumFast 2025-12-24 12:47:30 UTC View
Aldinra_1640_🗼_🌐 (AldB) +0.876s
After 		-114.0 dBm -6.50 dB 4 f5 RPT4 MediumFast 2025-12-24 12:47:31 UTC View
Rodashtastic🗼🌐 (RDSt) +1.598s
After 		-116.0 dBm -6.75 dB 4 e8 GRN1 MediumFast 2025-12-24 12:47:32 UTC View
GRN2-Cli 📡🔋 (GRN2) +1.901s
After 		-83.0 dBm 12.25 dB 4 e8 GRN1 MediumFast 2025-12-24 12:47:32 UTC View
Varela Bot 🏡🤖 (🤖) +3.318s
After 		-82.0 dBm 6.75 dB 4 1c 🏡 MediumFast 2025-12-24 12:47:33 UTC View
14

Total Receptions

14

Unique Gateways