Packet #14063653 Success

NODEINFO_APP packet from Karman’s HeltecV4 Beta (KHV4) to !ffffffff

10
Total Receptions
10
Unique Gateways
2
Hop Count
91
Payload Bytes
Packet Information
Database ID: 14063653
Mesh Packet ID: 0x3c20a57a
Used for correlation across gateways
Timestamp: 2025-10-07 20:34:44 UTC
From Node: Karman’s HeltecV4 Beta (KHV4)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: numerobis ☀️⚡🗼📱🏡 (nmrb)
Channel: LongFast
RSSI: -106 dBm
SNR: 0.25 dBm
Hop Info: 2/5 hops
Start: 5, Limit: 3
Payload Data
Protocol: NODEINFO_APP
Size: 91 bytes
Decoded: Yes
Decoded Data:
Long Name:Karman’s HeltecV4 Beta
Short Name:KHV4
Node ID:!4e5948a8
MAC Address:gLVOWUio
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:91 bytes
Gateway:!43b59978
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:2 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !43b59978
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (91 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1314474152
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 91 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -106.0 dBm
Signal strength at gateway 		int32
rx_snr 0.25 dB
Signal quality at gateway 		float
rx_time 1759869282
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 250
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759869284.336341
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)
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !43b59978
Signal Metrics: RSSI: -106.0 dBm
SNR: 0.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:91 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!4e5948a8", "long_name": "Karman’s HeltecV4 Beta", "short_name": "KHV4", "macaddr": "gLVOWUio", "hw_model": "HELTEC_V4" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!43b59978", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1314474152, "to": 4294967295, "id": 1008772474, "rx_time": 1759869282, "rx_snr": 0.25, "rx_rssi": -106, "hop_limit": 3, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 250, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921346535393438613812184b61726d616ee28099732048656c746563563420426574611a044b485634220680b54e5948a8286e38014220154f7200e6c78abc58cfeb636fc120c50299dc16e37fb6968b54146679a67f6b4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!4e5948a8", "long_name": "Karman’s HeltecV4 Beta", "short_name": "KHV4", "macaddr": "gLVOWUio", "hw_model": "HELTEC_V4", "role": "CLIENT_MUTE", "public_key": "FU9yAObHirxYz+tjb8EgxQKZ3Bbjf7aWi1QUZnmmf2s=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (91 bytes)
0a0921346535393438613812184b61726d616ee28099732048656c746563563420426574611a044b485634220680b54e5948a8286e38014220154f7200e6c78abc58cfeb636fc120c50299dc16e37fb6968b54146679a67f6b4800
Hex Analysis:
Size:91 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 reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Channel Timestamp Actions
numerobis ☀️⚡🗼📱🏡 (nmrb) Primary 0.000s
Reference 		-106.0 dBm 0.25 dB 2 LongFast 2025-10-07 20:34:44 Current
heltec v3 (5isa) -2.266s
Before 		-118.0 dBm -8.75 dB 2 LongFast 2025-10-07 20:34:42 View
Fede MQTT-CLM-868 (049c) -1.439s
Before 		-55.0 dBm 9.75 dB 2 LongFast 2025-10-07 20:34:42 View
EA5JKT_LoRa_1 (5JKT) -0.269s
Before 		-102.0 dBm 3.50 dB 2 LongFast 2025-10-07 20:34:44 View
Santastic 3234 (S3) -0.266s
Before 		-112.0 dBm -3.25 dB 2 LongFast 2025-10-07 20:34:44 View
T-Beam MQTT (RAF2) +0.645s
After 		-123.0 dBm -15.75 dB 3 LongFast 2025-10-07 20:34:44 View
S2_Node (S2) +0.951s
After 		-126.0 dBm -14.25 dB 3 LongFast 2025-10-07 20:34:45 View
EA5HKX (HKX) +2.957s
After 		-119.0 dBm -10.25 dB 4 LongFast 2025-10-07 20:34:47 View
jmrplens T114 (JM14) +4.365s
After 		-63.0 dBm 5.75 dB 4 LongFast 2025-10-07 20:34:48 View
Meshtastic aa4c (aa4c) +5.342s
After 		-97.0 dBm 7.00 dB 4 LongFast 2025-10-07 20:34:49 View
10

Total Receptions

10

Unique Gateways