Packet #39327543 Success

POSITION_APP packet from Meshtastic BIU GATEWAY (BIU2) to !ffffffff

46
Total Receptions
2
Unique Gateways
2
Hop Count
39
Payload Bytes
Packet Information
Database ID: 39327543
Mesh Packet ID: 0xb7f79481
Used for correlation across gateways
Timestamp: 2026-05-15 21:59:58 UTC
From Node: Meshtastic BIU GATEWAY (BIU2)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: lidman2 (lid2)
Channel: LongFast
RSSI: -128 dBm
SNR: -17.0 dBm
Hop Info: 2/7 hops
Start: 7, Limit: 5
Relay Node: ce
Last byte of the last hop that relayed this packet
Payload Data
Protocol: POSITION_APP
Size: 39 bytes
Decoded: Yes
Decoded Data:
Latitude:49.938432°
Longitude:-97.071923°
Altitude:232 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:39 bytes
Gateway:!9e7623cc
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:2 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !9e7623cc
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (39 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1272724880
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 39 bytes size
hop_limit 5
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -128.0 dBm
Signal strength at gateway 		int32
rx_snr -17.00 dB
Signal quality at gateway 		float
rx_time 1778882396
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 206
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1778882398.712515
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: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !9e7623cc
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -128.0 dBm
SNR: -17.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:39 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 49.938432, "longitude": -97.0719232, "altitude": 232, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9e7623cc", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1272724880, "to": 4294967295, "id": 3086455937, "rx_time": 1778882396, "rx_snr": -17.0, "rx_rssi": -128, "hop_limit": 5, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 206, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000c41d15000024c618e801255997076a28013d5297076a50007800800100b0019f0bb8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 499384320, "longitude_i": -970719232, "altitude": 232, "time": 1778882393, "location_source": "LOC_MANUAL", "timestamp": 1778882386, "altitude_geoidal_separation": 0, "ground_speed": 0, "ground_track": 0, "seq_number": 1439, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (39 bytes)
0d0000c41d15000024c618e801255997076a28013d5297076a50007800800100b0019f0bb8010d
Hex Analysis:
Size:39 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
lidman2 (lid2) Primary 0.000s
Reference 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC Current
lidman2 (lid2) -0.041s
Before 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) -0.012s
Before 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.017s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.027s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.048s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.069s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.081s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.098s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.108s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.119s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.130s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.141s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.152s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.163s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.174s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.185s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.197s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.209s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.221s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.233s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.246s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.258s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.271s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.283s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.294s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.305s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.316s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.328s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.338s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.350s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.361s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.372s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.384s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.397s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.409s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.422s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.434s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.446s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.458s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.470s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.481s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.493s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.504s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.515s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:59 UTC View
Mechanicus Alpha (M1) +0.526s
After 		-119.0 dBm -11.25 dB 2 ce LongFast 2026-05-15 21:59:59 UTC View
46

Total Receptions

2

Unique Gateways