Packet #40728726 Success

NODEINFO_APP packet from VE2DID a540 (2DID) to !bc26359b

45
Total Receptions
1
Unique Gateways
1
Hop Count
76
Payload Bytes
Packet Information
Database ID: 40728726
Mesh Packet ID: 0x8ca786b0
Used for correlation across gateways
Timestamp: 2026-05-19 09:45:29 UTC
From Node: VE2DID a540 (2DID)
To Node: !bc26359b (359b)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: ❄ qcmesh.net 1130 (1130)
Channel: LongFast
RSSI: -77 dBm
SNR: 7.5 dBm
Hop Info: 1/3 hops
Start: 3, Limit: 2
Relay Node: None
Payload Data
Protocol: NODEINFO_APP
Size: 76 bytes
Decoded: Yes
Decoded Data:
Long Name:VE2DID a540
Short Name:2DID
Node ID:!6985a540
MAC Address:kHBphaVA
Hardware:HELTEC_V4
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:76 bytes
Gateway:!a20a1130
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:1 / 3
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ 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 LongFast
Default public channel
packet MeshPacket (76 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1770366272
Source node ID
uint32
to 3156620699
Target node ID
uint32
decoded.portnum 4
NODEINFO_APP
enum
decoded.payload_length 76 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 7.50 dB
Signal quality at gateway
float
rx_time 1779183928
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 1779183929.750525
Unix timestamp
uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Targeted to specific node
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ 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: !a20a1130
Signal Metrics: RSSI: -77.0 dBm
SNR: 7.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:76 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!6985a540", "long_name": "VE2DID a540", "short_name": "2DID", "macaddr": "kHBphaVA", "hw_model": "HELTEC_V4" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a20a1130", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1770366272, "to": 3156620699, "id": 2359789232, "rx_time": 1779183928, "rx_snr": 7.5, "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": 4, "payload": "0a09213639383561353430120b56453244494420613534301a0432444944220690706985a540286e4220d2e395a23c6bdcca315d9adab818dae962122906bc376387dee6f40536af92254800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!6985a540", "long_name": "VE2DID a540", "short_name": "2DID", "macaddr": "kHBphaVA", "hw_model": "HELTEC_V4", "public_key": "0uOVojxr3MoxXZrauBja6WISKQa8N2OH3ub0BTavkiU=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (76 bytes)
0a09213639383561353430120b56453244494420613534301a0432444944220690706985a540286e4220d2e395a23c6bdcca315d9adab818dae962122906bc376387dee6f40536af92254800
Hex Analysis:
Size:76 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
❄ qcmesh.net 1130 (1130) Primary 0.000s
Reference
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC Current
❄ qcmesh.net 1130 (1130) +0.026s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.065s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.091s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.115s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.139s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.165s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.187s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.209s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.233s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) +0.259s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.282s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.305s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.327s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.349s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.370s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.392s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.416s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.440s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.464s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.489s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.510s
After
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.530s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.552s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.574s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.599s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.620s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.644s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.668s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.690s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.712s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.733s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.755s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.780s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.804s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.827s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.851s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.872s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.895s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.922s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.944s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.969s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.993s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +1.017s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +1.041s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:30 UTC View
45

Total Receptions

1

Unique Gateways