Packet #17810310 Success

POSITION_APP packet from Alliston 1 (AMA1) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
37
Payload Bytes
Packet Information
Database ID: 17810310
Mesh Packet ID: 0xa4a5ac15
Used for correlation across gateways
Timestamp: 2026-03-27 10:12:57 UTC
From Node: Alliston 1 (AMA1)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Alliston 1 (AMA1)
Channel: ShortFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: 80 AMA1
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: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:44.164710°
Longitude:-79.855616°
Altitude:204 m
Satellites:6
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:37 bytes
Gateway:!435b1080
Channel:ShortFast
Payload Type:POSITION_APP
Hop Count:Unknown / 3
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 !435b1080
Node ID format
channel_id ShortFast
packet MeshPacket (37 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1130041472
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 37 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 Not set int32
rx_snr Not set float
rx_time 1774606376
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 128
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774606377.2124355
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: !435b1080
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:37 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 44.1647104, "longitude": -79.855616, "altitude": 204, "sats_in_view": 6, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!435b1080", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1130041472, "to": 4294967295, "id": 2762320917, "rx_time": 1774606376, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 3, "hop_start": 3, "via_mqtt": false, "want_ack": false, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 128, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000531a15000067d018cc01252858c669280258bd027800800198a9960f980106b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 441647104, "longitude_i": -798556160, "altitude": 204, "time": 1774606376, "location_source": "LOC_INTERNAL", "PDOP": 317, "ground_speed": 0, "ground_track": 31823000, "sats_in_view": 6, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d0000531a15000067d018cc01252858c669280258bd027800800198a9960f980106b8010f
Hex Analysis:
Size:37 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
Alliston 1 (AMA1) Primary 0.000s
Reference 		Unknown Unknown 0 80 AMA1 ShortFast 2026-03-27 10:12:57 UTC Current
Alliston 1 (AMA1) -0.372s
Before 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:56 UTC View
Alliston 1 (AMA1) -0.340s
Before 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:56 UTC View
Alliston 1 (AMA1) -0.328s
Before 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:56 UTC View
Alliston 1 (AMA1) -0.311s
Before 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:56 UTC View
Alliston 1 (AMA1) -0.293s
Before 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:56 UTC View
Alliston 1 (AMA1) -0.276s
Before 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:56 UTC View
Alliston 1 (AMA1) -0.265s
Before 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:56 UTC View
Alliston 1 (AMA1) -0.255s
Before 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:56 UTC View
Alliston 1 (AMA1) -0.244s
Before 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:56 UTC View
Alliston 1 (AMA1) -0.233s
Before 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:56 UTC View
Alliston 1 (AMA1) -0.222s
Before 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:56 UTC View
Alliston 1 (AMA1) -0.211s
Before 		Unknown Unknown 0 80 AMA1 MediumFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.200s
Before 		Unknown Unknown 0 80 AMA1 MediumFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.190s
Before 		Unknown Unknown 0 80 AMA1 MediumFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.177s
Before 		Unknown Unknown 0 80 AMA1 MediumFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.165s
Before 		Unknown Unknown 0 80 AMA1 MediumFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.153s
Before 		Unknown Unknown 0 80 AMA1 MediumFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.141s
Before 		Unknown Unknown 0 80 AMA1 MediumFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.129s
Before 		Unknown Unknown 0 80 AMA1 MediumFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.117s
Before 		Unknown Unknown 0 80 AMA1 MediumFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.105s
Before 		Unknown Unknown 0 80 AMA1 MediumFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.093s
Before 		Unknown Unknown 0 80 AMA1 MediumFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.082s
Before 		Unknown Unknown 0 80 AMA1 ShortFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.071s
Before 		Unknown Unknown 0 80 AMA1 ShortFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.054s
Before 		Unknown Unknown 0 80 AMA1 ShortFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.043s
Before 		Unknown Unknown 0 80 AMA1 ShortFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.033s
Before 		Unknown Unknown 0 80 AMA1 ShortFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.022s
Before 		Unknown Unknown 0 80 AMA1 ShortFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) -0.011s
Before 		Unknown Unknown 0 80 AMA1 ShortFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.012s
After 		Unknown Unknown 0 80 AMA1 ShortFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.024s
After 		Unknown Unknown 0 80 AMA1 ShortFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.036s
After 		Unknown Unknown 0 80 AMA1 ShortFast 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.049s
After 		Unknown Unknown 0 80 AMA1 ShortTurbo 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.061s
After 		Unknown Unknown 0 80 AMA1 ShortTurbo 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.073s
After 		Unknown Unknown 0 80 AMA1 ShortTurbo 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.084s
After 		Unknown Unknown 0 80 AMA1 ShortTurbo 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.096s
After 		Unknown Unknown 0 80 AMA1 ShortTurbo 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.108s
After 		Unknown Unknown 0 80 AMA1 ShortTurbo 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.119s
After 		Unknown Unknown 0 80 AMA1 ShortTurbo 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.130s
After 		Unknown Unknown 0 80 AMA1 ShortTurbo 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.140s
After 		Unknown Unknown 0 80 AMA1 ShortTurbo 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.151s
After 		Unknown Unknown 0 80 AMA1 ShortTurbo 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.162s
After 		Unknown Unknown 0 80 AMA1 ShortTurbo 2026-03-27 10:12:57 UTC View
Alliston 1 (AMA1) +0.173s
After 		Unknown Unknown 0 80 AMA1 LongFast 2026-03-27 10:12:57 UTC View
45

Total Receptions

1

Unique Gateways