Packet #17882918 Success

POSITION_APP packet from Iris 🏠 (Iris) to Meshtastic b13c (b13c)

5
Total Receptions
5
Unique Gateways
3
Hop Count
28
Payload Bytes
Packet Information
Database ID: 17882918
Mesh Packet ID: 0x8ab9f5ed
Used for correlation across gateways
Timestamp: 2026-05-30 13:32:09 UTC
From Node: Iris 🏠 (Iris)
To Node: Meshtastic b13c (b13c)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: MOBILENODE_868 (8681)
Channel: MediumFast
RSSI: -108 dBm
SNR: 1.5 dBm
Hop Info: 3/5 hops
Start: 5, Limit: 2
Payload Data
Protocol: POSITION_APP
Size: 28 bytes
Decoded: Yes
Decoded Data:
Latitude:55.967744°
Longitude:37.670093°
Altitude:180 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:28 bytes
Gateway:!bba839a0
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:3 / 5
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 4 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !bba839a0
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 384178816
Source node ID 		uint32
to 49066300
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 28 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -108.0 dBm
Signal strength at gateway 		int32
rx_snr 1.50 dB
Signal quality at gateway 		float
rx_time 1780137128
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack True
Acknowledgment 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 164
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1780137129.765653
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Acknowledgment requested
  • ✓ Targeted to specific node
  • ✓ Custom channel: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Want ack: True
Gateway ID: !bba839a0
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -108.0 dBm
SNR: 1.50 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": 55.967744, "longitude": 37.6700928, "altitude": 180, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!bba839a0", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 384178816, "to": 49066300, "id": 2327442925, "rx_time": 1780137128, "rx_snr": 1.5, "rx_rssi": -108, "hop_limit": 2, "hop_start": 5, "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 164, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00005c21150000741618b40125a4bc1a6a28017800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 559677440, "longitude_i": 376700928, "altitude": 180, "time": 1780137124, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d00005c21150000741618b40125a4bc1a6a28017800800100b8010d
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 Channel Timestamp Actions
MOBILENODE_868 (8681) Primary 0.000s
Reference 		-108.0 dBm 1.50 dB 3 MediumFast 2026-05-30 13:32:09 Current
Cyb (17e8) -1.326s
Before 		-100.0 dBm -6.50 dB 2 MediumFast 2026-05-30 13:32:08 View
Aster-02 (AST2) +0.438s
After 		-91.0 dBm -3.00 dB 5 MediumFast 2026-05-30 13:32:10 View
SYSXX YGW8 (SXY8) +3.290s
After 		-66.0 dBm 10.00 dB 5 MediumFast 2026-05-30 13:32:13 View
dmt-ozeretskoe-mechta/868/MF2 (OZM8) +490.167s
After 		-110.0 dBm -9.50 dB 3 MediumFast 2026-05-30 13:40:19 View
5

Total Receptions

5

Unique Gateways