Packet #17816770 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: 17816770
Mesh Packet ID: 0x50404799
Used for correlation across gateways
Timestamp: 2026-03-27 10:30:02 UTC
From Node: VA7KJL (7KJL)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: VE7DCX Repeater (7DCX)
Channel: LongFast
RSSI: -96 dBm
SNR: 0.25 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:LongFast
Payload Type:POSITION_APP
Hop Count:1 / 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 !9e779694
Node ID format
channel_id LongFast
Default public channel
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 -96.0 dBm
Signal strength at gateway
int32
rx_snr 0.25 dB
Signal quality at gateway
float
rx_time 1774607398
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 1774607402.5949948
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: ~1500.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ 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: -96.0 dBm
SNR: 0.25 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": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3758941512, "to": 4294967295, "id": 1346389913, "rx_time": 1774607398, "rx_snr": 0.25, "rx_rssi": -96, "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": "0d0000921d150000f2ba18b10725235cc66928017800800100b8010e", "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": 1774607395, "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)
0d0000921d150000f2ba18b10725235cc66928017800800100b8010e
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...

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
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:02 UTC Current
VE7DCX Repeater (7DCX) -0.081s
Before
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) -0.040s
Before
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) -0.028s
Before
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) -0.011s
Before
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.018s
After
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.038s
After
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.049s
After
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.061s
After
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.072s
After
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.083s
After
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.093s
After
-96.0 dBm 0.25 dB 1 f9 7MRP MediumFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.104s
After
-96.0 dBm 0.25 dB 1 f9 7MRP MediumFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.114s
After
-96.0 dBm 0.25 dB 1 f9 7MRP MediumFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.125s
After
-96.0 dBm 0.25 dB 1 f9 7MRP MediumFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.136s
After
-96.0 dBm 0.25 dB 1 f9 7MRP MediumFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.148s
After
-96.0 dBm 0.25 dB 1 f9 7MRP MediumFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.160s
After
-96.0 dBm 0.25 dB 1 f9 7MRP MediumFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.173s
After
-96.0 dBm 0.25 dB 1 f9 7MRP MediumFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.185s
After
-96.0 dBm 0.25 dB 1 f9 7MRP MediumFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.200s
After
-96.0 dBm 0.25 dB 1 f9 7MRP MediumFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.211s
After
-96.0 dBm 0.25 dB 1 f9 7MRP MediumFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.223s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.235s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.247s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.258s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.269s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.280s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.291s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.302s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.313s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.324s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.335s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortFast 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.347s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortTurbo 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.359s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortTurbo 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.371s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortTurbo 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.383s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortTurbo 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.395s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortTurbo 2026-03-27 10:30:02 UTC View
VE7DCX Repeater (7DCX) +0.407s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortTurbo 2026-03-27 10:30:03 UTC View
VE7DCX Repeater (7DCX) +0.419s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortTurbo 2026-03-27 10:30:03 UTC View
VE7DCX Repeater (7DCX) +0.431s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortTurbo 2026-03-27 10:30:03 UTC View
VE7DCX Repeater (7DCX) +0.442s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortTurbo 2026-03-27 10:30:03 UTC View
VE7DCX Repeater (7DCX) +0.453s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortTurbo 2026-03-27 10:30:03 UTC View
VE7DCX Repeater (7DCX) +0.464s
After
-96.0 dBm 0.25 dB 1 f9 7MRP ShortTurbo 2026-03-27 10:30:03 UTC View
VE7DCX Repeater (7DCX) +0.475s
After
-96.0 dBm 0.25 dB 1 f9 7MRP LongFast 2026-03-27 10:30:03 UTC View
45

Total Receptions

1

Unique Gateways