Packet #17716243 Success

POSITION_APP packet from Seri Base d120 (SRB) to !ffffffff

46
Total Receptions
2
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
Database ID: 17716243
Mesh Packet ID: 0x04876f6f
Used for correlation across gateways
Timestamp: 2026-03-27 05:25:54 UTC
From Node: Seri Base d120 (SRB)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Seri Base d120 (SRB)
Channel: ShortFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/7 hops
Start: 7, Limit: 7
Relay Node: 20 SRB
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: 28 bytes
Decoded: Yes
Decoded Data:
Latitude:43.417600°
Longitude:-80.537190°
Altitude:340 m
Precision:15 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:!16ced120
Channel:ShortFast
Payload Type:POSITION_APP
Hop Count:Unknown / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 3 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !16ced120
Node ID format
channel_id ShortFast
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 382652704
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 7
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1774589153
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 10
Packet priority level 		enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 32
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774589154.385366
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: ShortFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~729.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
MQTT-Specific Fields
Gateway ID: !16ced120
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Zero Hop Policy: Enabled
Direct gateway connection
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": 43.4176, "longitude": -80.5371904, "altitude": 340, "sats_in_view": null, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!16ced120", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 382652704, "to": 4294967295, "id": 75984751, "rx_time": 1774589153, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 7, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 32, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000e119150000ffcf18d40225e114c66928017800800100b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 434176000, "longitude_i": -805371904, "altitude": 340, "time": 1774589153, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d0000e119150000ffcf18d40225e114c66928017800800100b8010f
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
Seri Base d120 (SRB) Primary 0.000s
Reference 		Unknown Unknown 0 20 SRB ShortFast 2026-03-27 05:25:54 UTC Current
Seri Base d120 (SRB) -0.384s
Before 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.359s
Before 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.348s
Before 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.330s
Before 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.309s
Before 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.292s
Before 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.281s
Before 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.271s
Before 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.260s
Before 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.250s
Before 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.233s
Before 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.223s
Before 		Unknown Unknown 0 20 SRB MediumFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.211s
Before 		Unknown Unknown 0 20 SRB MediumFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.199s
Before 		Unknown Unknown 0 20 SRB MediumFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.187s
Before 		Unknown Unknown 0 20 SRB MediumFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.175s
Before 		Unknown Unknown 0 20 SRB MediumFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.164s
Before 		Unknown Unknown 0 20 SRB MediumFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.153s
Before 		Unknown Unknown 0 20 SRB MediumFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.141s
Before 		Unknown Unknown 0 20 SRB MediumFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.130s
Before 		Unknown Unknown 0 20 SRB MediumFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.120s
Before 		Unknown Unknown 0 20 SRB MediumFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.110s
Before 		Unknown Unknown 0 20 SRB MediumFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.098s
Before 		Unknown Unknown 0 20 SRB ShortFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.077s
Before 		Unknown Unknown 0 20 SRB ShortFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.067s
Before 		Unknown Unknown 0 20 SRB ShortFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.057s
Before 		Unknown Unknown 0 20 SRB ShortFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.046s
Before 		Unknown Unknown 0 20 SRB ShortFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.036s
Before 		Unknown Unknown 0 20 SRB ShortFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.024s
Before 		Unknown Unknown 0 20 SRB ShortFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) -0.012s
Before 		Unknown Unknown 0 20 SRB ShortFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.012s
After 		Unknown Unknown 0 20 SRB ShortFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.023s
After 		Unknown Unknown 0 20 SRB ShortFast 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.325s
After 		Unknown Unknown 0 20 SRB ShortTurbo 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.336s
After 		Unknown Unknown 0 20 SRB ShortTurbo 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.349s
After 		Unknown Unknown 0 20 SRB ShortTurbo 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.361s
After 		Unknown Unknown 0 20 SRB ShortTurbo 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.371s
After 		Unknown Unknown 0 20 SRB ShortTurbo 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.382s
After 		Unknown Unknown 0 20 SRB ShortTurbo 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.393s
After 		Unknown Unknown 0 20 SRB ShortTurbo 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.411s
After 		Unknown Unknown 0 20 SRB ShortTurbo 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.429s
After 		Unknown Unknown 0 20 SRB ShortTurbo 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.449s
After 		Unknown Unknown 0 20 SRB ShortTurbo 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.469s
After 		Unknown Unknown 0 20 SRB ShortTurbo 2026-03-27 05:25:54 UTC View
Seri Base d120 (SRB) +0.490s
After 		Unknown Unknown 0 20 SRB LongFast 2026-03-27 05:25:54 UTC View
VE3WNP-12 (WNP) +3.002s
After 		-72.0 dBm 6.00 dB 1 68 WNPr LongFast 2026-03-27 05:25:57 UTC View
46

Total Receptions

2

Unique Gateways