Packet #17627783 Success

POSITION_APP packet from !db2ad59c to !ffffffff

45
Total Receptions
1
Unique Gateways
5
Hop Count
27
Payload Bytes
Packet Information
Database ID: 17627783
Mesh Packet ID: 0x9e565bf9
Used for correlation across gateways
Timestamp: 2026-03-27 00:41:02 UTC
From Node: !db2ad59c (d59c)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: ❄ qcmesh.net 1130 (1130)
Channel: ShortTurbo
RSSI: -20 dBm
SNR: 6.0 dBm
Hop Info: 5/7 hops
Start: 7, Limit: 2
Relay Node: None
Payload Data
Protocol: POSITION_APP
Size: 27 bytes
Decoded: Yes
Decoded Data:
Latitude:46.868070°
Longitude:-71.319552°
Altitude:105 m
Precision:16 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:27 bytes
Gateway:!a20a1130
Channel:ShortTurbo
Payload Type:POSITION_APP
Hop Count:5 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortTurbo
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !a20a1130
Node ID format
channel_id ShortTurbo
packet MeshPacket (27 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3677017500
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 3
POSITION_APP
enum
decoded.payload_length 27 bytes size
hop_limit 2
Remaining hops allowed
uint32
hop_start 7
Initial hop limit
uint32
hops_taken 5
Calculated: hop_start - hop_limit
derived
rx_rssi -20.0 dBm
Signal strength at gateway
int32
rx_snr 6.00 dB
Signal quality at gateway
float
rx_time 1774572055
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 1774572062.654369
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
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ Multi-hop path visible (5 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !a20a1130
Position Precision: 16 bits (~364.0m accuracy)
Position precision meters: 364.0
Signal Metrics: RSSI: -20.0 dBm
SNR: 6.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:27 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 46.8680704, "longitude": -71.319552, "altitude": 105, "sats_in_view": null, "precision_bits": 16 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a20a1130", "channel_id": "ShortTurbo", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3677017500, "to": 4294967295, "id": 2656459769, "rx_time": 1774572055, "rx_snr": 6.0, "rx_rssi": -20, "hop_limit": 2, "hop_start": 7, "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": "0d0080ef1b1500807dd51869250bd2c56928017800800100b80110", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 468680704, "longitude_i": -713195520, "altitude": 105, "time": 1774572043, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 16, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (27 bytes)
0d0080ef1b1500807dd51869250bd2c56928017800800100b80110
Hex Analysis:
Size:27 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 6.00 dB 5 - ShortTurbo 2026-03-27 00:41:02 UTC Current
❄ qcmesh.net 1130 (1130) -0.778s
Before
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:01 UTC View
❄ qcmesh.net 1130 (1130) -0.750s
Before
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:01 UTC View
❄ qcmesh.net 1130 (1130) -0.734s
Before
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:01 UTC View
❄ qcmesh.net 1130 (1130) -0.718s
Before
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:01 UTC View
❄ qcmesh.net 1130 (1130) -0.700s
Before
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:01 UTC View
❄ qcmesh.net 1130 (1130) -0.683s
Before
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:01 UTC View
❄ qcmesh.net 1130 (1130) -0.418s
Before
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.408s
Before
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.397s
Before
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.386s
Before
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.375s
Before
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.364s
Before
-20.0 dBm 6.00 dB 5 - MediumFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.352s
Before
-20.0 dBm 6.00 dB 5 - MediumFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.340s
Before
-20.0 dBm 6.00 dB 5 - MediumFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.329s
Before
-20.0 dBm 6.00 dB 5 - MediumFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.318s
Before
-20.0 dBm 6.00 dB 5 - MediumFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.306s
Before
-20.0 dBm 6.00 dB 5 - MediumFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.295s
Before
-20.0 dBm 6.00 dB 5 - MediumFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.284s
Before
-20.0 dBm 6.00 dB 5 - MediumFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.274s
Before
-20.0 dBm 6.00 dB 5 - MediumFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.264s
Before
-20.0 dBm 6.00 dB 5 - MediumFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.254s
Before
-20.0 dBm 6.00 dB 5 - MediumFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.243s
Before
-20.0 dBm 6.00 dB 5 - ShortFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.233s
Before
-20.0 dBm 6.00 dB 5 - ShortFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.222s
Before
-20.0 dBm 6.00 dB 5 - ShortFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.212s
Before
-20.0 dBm 6.00 dB 5 - ShortFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.200s
Before
-20.0 dBm 6.00 dB 5 - ShortFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.188s
Before
-20.0 dBm 6.00 dB 5 - ShortFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.176s
Before
-20.0 dBm 6.00 dB 5 - ShortFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.164s
Before
-20.0 dBm 6.00 dB 5 - ShortFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.153s
Before
-20.0 dBm 6.00 dB 5 - ShortFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.142s
Before
-20.0 dBm 6.00 dB 5 - ShortFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.131s
Before
-20.0 dBm 6.00 dB 5 - ShortFast 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.120s
Before
-20.0 dBm 6.00 dB 5 - ShortTurbo 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.109s
Before
-20.0 dBm 6.00 dB 5 - ShortTurbo 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.093s
Before
-20.0 dBm 6.00 dB 5 - ShortTurbo 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.083s
Before
-20.0 dBm 6.00 dB 5 - ShortTurbo 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.072s
Before
-20.0 dBm 6.00 dB 5 - ShortTurbo 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.052s
Before
-20.0 dBm 6.00 dB 5 - ShortTurbo 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.033s
Before
-20.0 dBm 6.00 dB 5 - ShortTurbo 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.022s
Before
-20.0 dBm 6.00 dB 5 - ShortTurbo 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) -0.012s
Before
-20.0 dBm 6.00 dB 5 - ShortTurbo 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) +0.012s
After
-20.0 dBm 6.00 dB 5 - ShortTurbo 2026-03-27 00:41:02 UTC View
❄ qcmesh.net 1130 (1130) +0.024s
After
-20.0 dBm 6.00 dB 5 - LongFast 2026-03-27 00:41:02 UTC View
45

Total Receptions

1

Unique Gateways