Packet #40728748 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: 40728748
Mesh Packet ID: 0x8ca786b0
Used for correlation across gateways
Timestamp: 2026-05-19 09:45:30 UTC
From Node: VE2DID a540 (2DID)
To Node: !bc26359b (359b)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: ❄ qcmesh.net 1130 (1130)
Channel: ShortFast
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:ShortFast
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
+ 2 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !a20a1130
Node ID format
channel_id ShortFast
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 1779183930.2804925
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
  • ✓ Custom channel: ShortFast
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ 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": "ShortFast", "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
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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 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC Current
❄ qcmesh.net 1130 (1130) -0.530s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.504s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.465s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.439s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.415s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.391s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.365s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.343s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.321s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.297s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:29 UTC View
❄ qcmesh.net 1130 (1130) -0.270s
Before
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) -0.248s
Before
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) -0.225s
Before
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) -0.203s
Before
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) -0.181s
Before
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) -0.160s
Before
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) -0.138s
Before
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) -0.114s
Before
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) -0.090s
Before
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) -0.066s
Before
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) -0.041s
Before
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) -0.020s
Before
-77.0 dBm 7.50 dB 1 - MediumFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.022s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.044s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.069s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.090s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.114s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.138s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.160s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.182s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.203s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.225s
After
-77.0 dBm 7.50 dB 1 - ShortFast 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.250s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.274s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.297s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.321s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.342s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.365s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.392s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.414s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.439s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.463s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.487s
After
-77.0 dBm 7.50 dB 1 - ShortTurbo 2026-05-19 09:45:30 UTC View
❄ qcmesh.net 1130 (1130) +0.511s
After
-77.0 dBm 7.50 dB 1 - LongFast 2026-05-19 09:45:30 UTC View
45

Total Receptions

1

Unique Gateways