Packet #17998931 Success

POSITION_APP packet from VA7KJL (7KJL) to !ffffffff

45
Total Receptions
1
Unique Gateways
1
Hop Count
28
Payload Bytes
Packet Information
Database ID: 17998931
Mesh Packet ID: 0xa0eb7ccd
Used for correlation across gateways
Timestamp: 2026-03-27 20:30:11 UTC
From Node: VA7KJL (7KJL)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: VE7DCX Repeater (7DCX)
Channel: ShortTurbo
RSSI: -107 dBm
SNR: -7.75 dBm
Hop Info: 1/7 hops
Start: 7, Limit: 6
Relay Node: f9 7MRP
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:49.610752°
Longitude:-115.854541°
Altitude:945 m
Precision:14 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:!9e779694
Channel:ShortTurbo
Payload Type:POSITION_APP
Hop Count:1 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortTurbo
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !9e779694
Node ID format
channel_id ShortTurbo
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3758941512
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 6
Remaining hops allowed
uint32
hop_start 7
Initial hop limit
uint32
hops_taken 1
Calculated: hop_start - hop_limit
derived
rx_rssi -107.0 dBm
Signal strength at gateway
int32
rx_snr -7.75 dB
Signal quality at gateway
float
rx_time 1774643409
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 249
Relay node ID
uint32
tx_after Not set uint32
timestamp 1774643411.2572494
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: ShortTurbo
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~1500.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !9e779694
Position Precision: 14 bits (~1500.0m accuracy)
Position precision meters: 1500.0
Signal Metrics: RSSI: -107.0 dBm
SNR: -7.75 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": 49.610752, "longitude": -115.8545408, "altitude": 945, "sats_in_view": null, "precision_bits": 14 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9e779694", "channel_id": "ShortTurbo", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3758941512, "to": 4294967295, "id": 2699787469, "rx_time": 1774643409, "rx_snr": -7.75, "rx_rssi": -107, "hop_limit": 6, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 249, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000921d150000f2ba18b10725cee8c66928017800800100b8010e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 496107520, "longitude_i": -1158545408, "altitude": 945, "time": 1774643406, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 14, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d0000921d150000f2ba18b10725cee8c66928017800800100b8010e
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
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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
VE7DCX Repeater (7DCX) Primary 0.000s
Reference
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC Current
VE7DCX Repeater (7DCX) -1.026s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.976s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.928s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.895s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.876s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.854s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.823s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.793s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.772s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.751s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.718s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.698s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.677s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.646s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.596s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.559s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.534s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.511s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.470s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.447s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.430s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.414s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.397s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.373s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.352s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.336s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.308s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.285s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.260s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.239s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) -0.212s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) -0.198s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) -0.181s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) -0.154s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) -0.134s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) -0.117s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) -0.105s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) -0.090s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) -0.075s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) -0.057s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) -0.035s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.018s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.031s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.050s
After
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:11 UTC View
45

Total Receptions

1

Unique Gateways