Packet #39327544 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: 39327544
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 1778882398.729803
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) -0.058s
Before 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) -0.029s
Before 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) -0.017s
Before 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.010s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.031s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.051s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.063s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.080s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.091s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.101s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.113s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.124s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.135s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.145s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.157s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.167s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.179s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.192s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.204s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.216s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.229s
After 		-128.0 dBm -17.00 dB 2 ce MediumFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.241s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.254s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.266s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:58 UTC View
lidman2 (lid2) +0.277s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.288s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.299s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.310s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.321s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.332s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.344s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.355s
After 		-128.0 dBm -17.00 dB 2 ce ShortFast 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.367s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.379s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.392s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.405s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.417s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.429s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.441s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.453s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.464s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.475s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.487s
After 		-128.0 dBm -17.00 dB 2 ce ShortTurbo 2026-05-15 21:59:59 UTC View
lidman2 (lid2) +0.497s
After 		-128.0 dBm -17.00 dB 2 ce LongFast 2026-05-15 21:59:59 UTC View
Mechanicus Alpha (M1) +0.508s
After 		-119.0 dBm -11.25 dB 2 ce LongFast 2026-05-15 21:59:59 UTC View
46

Total Receptions

2

Unique Gateways