Packet #17611899 Success

POSITION_APP packet from Meshtastic c054 (c054) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
31
Payload Bytes
Packet Information
Database ID: 17611899
Mesh Packet ID: 0xd4145209
Used for correlation across gateways
Timestamp: 2026-03-26 23:51:02 UTC
From Node: Meshtastic c054 (c054)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: ❄ qcmesh.net 1130 (1130)
Channel: ShortTurbo
RSSI: -20 dBm
SNR: 6.5 dBm
Hop Info: 0/4 hops
Start: 4, Limit: 4
Relay Node: None
Payload Data
Protocol: POSITION_APP
Size: 31 bytes
Decoded: Yes
Decoded Data:
Latitude:46.897562°
Longitude:-71.119667°
Altitude:62 m
Satellites:8
Precision:13 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:31 bytes
Gateway:!a20a1130
Channel:ShortTurbo
Payload Type:POSITION_APP
Hop Count:Unknown / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortTurbo
+ 3 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !a20a1130
Node ID format
channel_id ShortTurbo
packet MeshPacket (31 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 4014063700
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 3
POSITION_APP
enum
decoded.payload_length 31 bytes size
hop_limit 4
Remaining hops allowed
uint32
hop_start 4
Initial hop limit
uint32
hops_taken 0
Calculated: hop_start - hop_limit
derived
rx_rssi -20.0 dBm
Signal strength at gateway
int32
rx_snr 6.50 dB
Signal quality at gateway
float
rx_time 1774569055
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 Not set uint32
tx_after Not set uint32
timestamp 1774569062.4509895
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: ~2900.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !a20a1130
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -20.0 dBm
SNR: 6.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:31 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 46.8975616, "longitude": -71.1196672, "altitude": 62, "sats_in_view": 8, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a20a1130", "channel_id": "ShortTurbo", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4014063700, "to": 4294967295, "id": 3558101513, "rx_time": 1774569055, "rx_snr": 6.5, "rx_rssi": -20, "hop_limit": 4, "hop_start": 4, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000f41b1500009cd5183e2524c7c56958ac017800800100980108b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 468975616, "longitude_i": -711196672, "altitude": 62, "time": 1774569252, "PDOP": 172, "ground_speed": 0, "ground_track": 0, "sats_in_view": 8, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (31 bytes)
0d0000f41b1500009cd5183e2524c7c56958ac017800800100980108b8010d
Hex Analysis:
Size:31 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
❄ qcmesh.net 1130 (1130) Primary 0.000s
Reference
-20.0 dBm 6.50 dB 0 - ShortTurbo 2026-03-26 23:51:02 UTC Current
❄ qcmesh.net 1130 (1130) -0.550s
Before
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:01 UTC View
❄ qcmesh.net 1130 (1130) -0.483s
Before
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:01 UTC View
❄ qcmesh.net 1130 (1130) -0.445s
Before
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.433s
Before
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.414s
Before
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.386s
Before
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.373s
Before
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.352s
Before
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.333s
Before
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.321s
Before
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.304s
Before
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.293s
Before
-20.0 dBm 6.50 dB 0 - MediumFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.277s
Before
-20.0 dBm 6.50 dB 0 - MediumFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.260s
Before
-20.0 dBm 6.50 dB 0 - MediumFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.250s
Before
-20.0 dBm 6.50 dB 0 - MediumFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.235s
Before
-20.0 dBm 6.50 dB 0 - MediumFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.223s
Before
-20.0 dBm 6.50 dB 0 - MediumFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.212s
Before
-20.0 dBm 6.50 dB 0 - MediumFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.202s
Before
-20.0 dBm 6.50 dB 0 - MediumFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.192s
Before
-20.0 dBm 6.50 dB 0 - MediumFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.180s
Before
-20.0 dBm 6.50 dB 0 - MediumFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.169s
Before
-20.0 dBm 6.50 dB 0 - MediumFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.157s
Before
-20.0 dBm 6.50 dB 0 - ShortFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.145s
Before
-20.0 dBm 6.50 dB 0 - ShortFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.133s
Before
-20.0 dBm 6.50 dB 0 - ShortFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.122s
Before
-20.0 dBm 6.50 dB 0 - ShortFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.110s
Before
-20.0 dBm 6.50 dB 0 - ShortFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.099s
Before
-20.0 dBm 6.50 dB 0 - ShortFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.088s
Before
-20.0 dBm 6.50 dB 0 - ShortFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.077s
Before
-20.0 dBm 6.50 dB 0 - ShortFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.065s
Before
-20.0 dBm 6.50 dB 0 - ShortFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.054s
Before
-20.0 dBm 6.50 dB 0 - ShortFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.043s
Before
-20.0 dBm 6.50 dB 0 - ShortFast 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.032s
Before
-20.0 dBm 6.50 dB 0 - ShortTurbo 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.022s
Before
-20.0 dBm 6.50 dB 0 - ShortTurbo 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) -0.012s
Before
-20.0 dBm 6.50 dB 0 - ShortTurbo 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) +0.012s
After
-20.0 dBm 6.50 dB 0 - ShortTurbo 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) +0.024s
After
-20.0 dBm 6.50 dB 0 - ShortTurbo 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) +0.036s
After
-20.0 dBm 6.50 dB 0 - ShortTurbo 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) +0.048s
After
-20.0 dBm 6.50 dB 0 - ShortTurbo 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) +0.060s
After
-20.0 dBm 6.50 dB 0 - ShortTurbo 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) +0.072s
After
-20.0 dBm 6.50 dB 0 - ShortTurbo 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) +0.083s
After
-20.0 dBm 6.50 dB 0 - ShortTurbo 2026-03-26 23:51:02 UTC View
❄ qcmesh.net 1130 (1130) +0.094s
After
-20.0 dBm 6.50 dB 0 - LongFast 2026-03-26 23:51:02 UTC View
45

Total Receptions

1

Unique Gateways