Packet #18021764 Success

POSITION_APP packet from Thorndale North Tower (📡) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
23
Payload Bytes
Packet Information
Database ID: 18021764
Mesh Packet ID: 0xac8ccd24
Used for correlation across gateways
Timestamp: 2026-03-27 21:50:32 UTC
From Node: Thorndale North Tower (📡)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Woods Mesh 🌲 (WUDZ)
Channel: LongFast
RSSI: -42 dBm
SNR: 6.25 dBm
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: 34 📡
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: POSITION_APP
Size: 23 bytes
Decoded: Yes
Decoded Data:
Latitude:43.148902°
Longitude:-81.107354°
Altitude:316 m
Precision:12 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:23 bytes
Gateway:!9e7728c4
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 2 more...
Exposure Risks:
âš  Visible to all nodes on channel
âš  Default channel - no encryption
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !9e7728c4
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (23 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3424817204
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 23 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -42.0 dBm
Signal strength at gateway 		int32
rx_snr 6.25 dB
Signal quality at gateway 		float
rx_time 1774648228
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 52
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774648232.5259595
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)
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~5800.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • âš  Visible to all nodes on channel
  • âš  Default channel - no encryption
  • âš  Packet visible to MQTT subscribers
  • âš  RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !9e7728c4
Position Precision: 12 bits (~5800.0m accuracy)
Position precision meters: 5800.0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -42.0 dBm
SNR: 6.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:23 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 43.1489024, "longitude": -81.1073536, "altitude": 316, "sats_in_view": null, "precision_bits": 12 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9e7728c4", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3424817204, "to": 4294967295, "id": 2894908708, "rx_time": 1774648228, "rx_snr": 6.25, "rx_rssi": -42, "hop_limit": 3, "hop_start": 3, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 52, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000b819150000a8cf18bc022541fbc6692801b8010c", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 431489024, "longitude_i": -811073536, "altitude": 316, "time": 1774648129, "location_source": "LOC_MANUAL", "precision_bits": 12, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (23 bytes)
0d0000b819150000a8cf18bc022541fbc6692801b8010c
Hex Analysis:
Size:23 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
Woods Mesh 🌲 (WUDZ) Primary 0.000s
Reference 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:32 UTC Current
Woods Mesh 🌲 (WUDZ) -1.434s
Before 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.402s
Before 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.369s
Before 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.322s
Before 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.285s
Before 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.258s
Before 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.216s
Before 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.200s
Before 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.164s
Before 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.144s
Before 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.110s
Before 		-42.0 dBm 6.25 dB 0 34 📡 LongFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.078s
Before 		-42.0 dBm 6.25 dB 0 34 📡 MediumFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -1.029s
Before 		-42.0 dBm 6.25 dB 0 34 📡 MediumFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.994s
Before 		-42.0 dBm 6.25 dB 0 34 📡 MediumFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.956s
Before 		-42.0 dBm 6.25 dB 0 34 📡 MediumFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.920s
Before 		-42.0 dBm 6.25 dB 0 34 📡 MediumFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.891s
Before 		-42.0 dBm 6.25 dB 0 34 📡 MediumFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.843s
Before 		-42.0 dBm 6.25 dB 0 34 📡 MediumFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.819s
Before 		-42.0 dBm 6.25 dB 0 34 📡 MediumFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.784s
Before 		-42.0 dBm 6.25 dB 0 34 📡 MediumFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.740s
Before 		-42.0 dBm 6.25 dB 0 34 📡 MediumFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.692s
Before 		-42.0 dBm 6.25 dB 0 34 📡 MediumFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.650s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.603s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.566s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.533s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortFast 2026-03-27 21:50:31 UTC View
Woods Mesh 🌲 (WUDZ) -0.502s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortFast 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.462s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortFast 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.445s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortFast 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.412s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortFast 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.396s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortFast 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.362s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortFast 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.328s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortFast 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.295s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortTurbo 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.257s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortTurbo 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.237s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortTurbo 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.220s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortTurbo 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.190s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortTurbo 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.155s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortTurbo 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.120s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortTurbo 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.092s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortTurbo 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.078s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortTurbo 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.064s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortTurbo 2026-03-27 21:50:32 UTC View
Woods Mesh 🌲 (WUDZ) -0.031s
Before 		-42.0 dBm 6.25 dB 0 34 📡 ShortTurbo 2026-03-27 21:50:32 UTC View
45

Total Receptions

1

Unique Gateways