Packet #17998910 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: 17998910
Mesh Packet ID: 0xa0eb7ccd
Used for correlation across gateways
Timestamp: 2026-03-27 20:30:10 UTC
From Node: VA7KJL (7KJL)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: VE7DCX Repeater (7DCX)
Channel: MediumFast
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:MediumFast
Payload Type:POSITION_APP
Hop Count:1 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 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 MediumFast
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 1774643410.8275912
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: MediumFast
  • ✓ 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": "MediumFast", "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 MediumFast 2026-03-27 20:30:10 UTC Current
VE7DCX Repeater (7DCX) -0.596s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.546s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.499s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.465s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.447s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.424s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.393s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.363s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.342s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.322s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.288s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP LongFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.269s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.247s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.216s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.166s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.129s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.105s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.081s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.040s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) -0.017s
Before
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) +0.015s
After
-107.0 dBm -7.75 dB 1 f9 7MRP MediumFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) +0.033s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) +0.057s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) +0.077s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) +0.093s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) +0.122s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) +0.145s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) +0.169s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:10 UTC View
VE7DCX Repeater (7DCX) +0.191s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.218s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.232s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.249s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortFast 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.276s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.296s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.313s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.325s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.339s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.355s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.373s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.395s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.430s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.447s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.460s
After
-107.0 dBm -7.75 dB 1 f9 7MRP ShortTurbo 2026-03-27 20:30:11 UTC View
VE7DCX Repeater (7DCX) +0.479s
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