Packet #40707155 Success

POSITION_APP packet from Kaze e19f (KAZE) to !ffffffff

45
Total Receptions
1
Unique Gateways
1
Hop Count
36
Payload Bytes
Packet Information
Database ID: 40707155
Mesh Packet ID: 0x83057864
Used for correlation across gateways
Timestamp: 2026-05-19 08:36:45 UTC
From Node: Kaze e19f (KAZE)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: ❄ qcmesh.net 1130 (1130)
Channel: MediumFast
RSSI: -77 dBm
SNR: 5.75 dBm
Hop Info: 1/3 hops
Start: 3, Limit: 2
Relay Node: None
Payload Data
Protocol: POSITION_APP
Size: 36 bytes
Decoded: Yes
Decoded Data:
Latitude:46.792704°
Longitude:-71.224525°
Altitude:6 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:36 bytes
Gateway:!a20a1130
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:1 / 3
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 !a20a1130
Node ID format
channel_id MediumFast
packet MeshPacket (36 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1575281055
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 3
POSITION_APP
enum
decoded.payload_length 36 bytes size
hop_limit 2
Remaining hops allowed
uint32
hop_start 3
Initial hop limit
uint32
hops_taken 1
Calculated: hop_start - hop_limit
derived
rx_rssi -77.0 dBm
Signal strength at gateway
int32
rx_snr 5.75 dB
Signal quality at gateway
float
rx_time 1779179804
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 1779179805.2878509
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: ~2900.0m 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: !a20a1130
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -77.0 dBm
SNR: 5.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:36 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 46.792704, "longitude": -71.2245248, "altitude": 6, "sats_in_view": 8, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a20a1130", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1575281055, "to": 4294967295, "id": 2198173796, "rx_time": 1779179804, "rx_snr": 5.75, "rx_rssi": -77, "hop_limit": 2, "hop_start": 3, "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": "0d0000e41b1500008cd518062541210c6a280258880578008001d0b3d908980108b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 467927040, "longitude_i": -712245248, "altitude": 6, "time": 1779179841, "location_source": "LOC_INTERNAL", "PDOP": 648, "ground_speed": 0, "ground_track": 18242000, "sats_in_view": 8, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (36 bytes)
0d0000e41b1500008cd518062541210c6a280258880578008001d0b3d908980108b8010d
Hex Analysis:
Size:36 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
-77.0 dBm 5.75 dB 1 - MediumFast 2026-05-19 08:36:45 UTC Current
❄ qcmesh.net 1130 (1130) -0.169s
Before
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.136s
Before
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.124s
Before
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.113s
Before
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.101s
Before
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.090s
Before
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.079s
Before
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.068s
Before
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.057s
Before
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.046s
Before
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.034s
Before
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.023s
Before
-77.0 dBm 5.75 dB 1 - MediumFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) -0.012s
Before
-77.0 dBm 5.75 dB 1 - MediumFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.012s
After
-77.0 dBm 5.75 dB 1 - MediumFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.025s
After
-77.0 dBm 5.75 dB 1 - MediumFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.039s
After
-77.0 dBm 5.75 dB 1 - MediumFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.051s
After
-77.0 dBm 5.75 dB 1 - MediumFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.063s
After
-77.0 dBm 5.75 dB 1 - MediumFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.076s
After
-77.0 dBm 5.75 dB 1 - MediumFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.088s
After
-77.0 dBm 5.75 dB 1 - MediumFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.099s
After
-77.0 dBm 5.75 dB 1 - MediumFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.110s
After
-77.0 dBm 5.75 dB 1 - ShortFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.121s
After
-77.0 dBm 5.75 dB 1 - ShortFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.132s
After
-77.0 dBm 5.75 dB 1 - ShortFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.143s
After
-77.0 dBm 5.75 dB 1 - ShortFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.155s
After
-77.0 dBm 5.75 dB 1 - ShortFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.164s
After
-77.0 dBm 5.75 dB 1 - ShortFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.175s
After
-77.0 dBm 5.75 dB 1 - ShortFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.193s
After
-77.0 dBm 5.75 dB 1 - ShortFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.206s
After
-77.0 dBm 5.75 dB 1 - ShortFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.219s
After
-77.0 dBm 5.75 dB 1 - ShortFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.231s
After
-77.0 dBm 5.75 dB 1 - ShortFast 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.243s
After
-77.0 dBm 5.75 dB 1 - ShortTurbo 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.255s
After
-77.0 dBm 5.75 dB 1 - ShortTurbo 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.268s
After
-77.0 dBm 5.75 dB 1 - ShortTurbo 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.279s
After
-77.0 dBm 5.75 dB 1 - ShortTurbo 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.291s
After
-77.0 dBm 5.75 dB 1 - ShortTurbo 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.302s
After
-77.0 dBm 5.75 dB 1 - ShortTurbo 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.313s
After
-77.0 dBm 5.75 dB 1 - ShortTurbo 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.324s
After
-77.0 dBm 5.75 dB 1 - ShortTurbo 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.335s
After
-77.0 dBm 5.75 dB 1 - ShortTurbo 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.347s
After
-77.0 dBm 5.75 dB 1 - ShortTurbo 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.359s
After
-77.0 dBm 5.75 dB 1 - ShortTurbo 2026-05-19 08:36:45 UTC View
❄ qcmesh.net 1130 (1130) +0.370s
After
-77.0 dBm 5.75 dB 1 - LongFast 2026-05-19 08:36:45 UTC View
45

Total Receptions

1

Unique Gateways