Packet #9805441 Success

NODEINFO_APP packet from Heltec v4 a388 (a388) to Khim8 (Kim8)

21
Total Receptions
21
Unique Gateways
4
Hop Count
79
Payload Bytes
Packet Information
Database ID: 9805441
Mesh Packet ID: 0x0b97cb4c
Used for correlation across gateways
Timestamp: 2026-02-19 20:25:11 UTC
From Node: Heltec v4 a388 (a388)
To Node: Khim8 (Kim8)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: SYSXX BGW8 (SXB8)
Channel: LongFast
RSSI: -5 dBm
SNR: 7.5 dBm
Hop Info: 4/7 hops
Start: 7, Limit: 3
Payload Data
Protocol: NODEINFO_APP
Size: 79 bytes
Decoded: Yes
Decoded Data:
Long Name:Heltec v4 a388
Short Name:a388
Node ID:!6985a388
MAC Address:kHBphaOI
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:79 bytes
Gateway:!efffff01
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:4 / 7
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 !efffff01
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (79 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1770365832
Source node ID 		uint32
to 3774175364
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 79 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -5.0 dBm
Signal strength at gateway 		int32
rx_snr 7.50 dB
Signal quality at gateway 		float
rx_time 1771521911
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 2
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1771521911.6543734
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 (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !efffff01
Signal Metrics: RSSI: -5.0 dBm
SNR: 7.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:79 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!6985a388", "long_name": "Heltec v4 a388", "short_name": "a388", "macaddr": "kHBphaOI", "hw_model": "HELTEC_V4" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!efffff01", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1770365832, "to": 3774175364, "id": 194497356, "rx_time": 1771521911, "rx_snr": 7.5, "rx_rssi": -5, "hop_limit": 3, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 2, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213639383561333838120e48656c74656320763420613338381a0461333838220690706985a388286e4220df604c78bc657509a0f03ffe5cb091afe16e589533ab1820cf81e168eadb0b2f4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!6985a388", "long_name": "Heltec v4 a388", "short_name": "a388", "macaddr": "kHBphaOI", "hw_model": "HELTEC_V4", "public_key": "32BMeLxldQmg8D/+XLCRr+FuWJUzqxggz4HhaOrbCy8=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (79 bytes)
0a09213639383561333838120e48656c74656320763420613338381a0461333838220690706985a388286e4220df604c78bc657509a0f03ffe5cb091afe16e589533ab1820cf81e168eadb0b2f4800
Hex Analysis:
Size:79 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
SYSXX BGW8 (SXB8) Primary 0.000s
Reference 		-5.0 dBm 7.50 dB 4 LongFast 2026-02-19 20:25:11 Current
BBS Восток (DM📲) (BBSv) -10.648s
Before 		-99.0 dBm -12.75 dB 0 LongFast 2026-02-19 20:25:01 View
Fostral (FSTR) -6.451s
Before 		-47.0 dBm 5.00 dB 1 LongFast 2026-02-19 20:25:05 View
AngryAn (👻) -4.760s
Before 		-135.0 dBm -18.75 dB 2 LongFast 2026-02-19 20:25:06 View
Tsaritsyno_KB_U_868 (KBU8) -2.866s
Before 		-106.0 dBm -5.50 dB 3 LongFast 2026-02-19 20:25:08 View
EGarpunov 2 868 (Base) (BAO) (EG28) -2.595s
Before 		-113.0 dBm -10.75 dB 1 LongFast 2026-02-19 20:25:09 View
SYSXX YGW8 (SXY8) -1.969s
Before 		-99.0 dBm -11.00 dB 3 LongFast 2026-02-19 20:25:09 View
Tsaritsyno_KB_V_868 (KBV8) -1.652s
Before 		-104.0 dBm -3.50 dB 3 LongFast 2026-02-19 20:25:10 View
Korolyok h0use (K8k*) -0.065s
Before 		-120.0 dBm -8.00 dB 4 LongFast 2026-02-19 20:25:11 View
SYSXX OGW8 (SXG8) +0.069s
After 		-47.0 dBm 5.50 dB 4 LongFast 2026-02-19 20:25:11 View
Aster-02 (AST2) +2.325s
After 		-98.0 dBm -9.75 dB 5 LongFast 2026-02-19 20:25:13 View
Koptevo-8-MQTT (BM8M) +2.907s
After 		-102.0 dBm -0.75 dB 5 LongFast 2026-02-19 20:25:14 View
Butyrskaya 868 (But8) +3.797s
After 		-100.0 dBm Unknown 5 LongFast 2026-02-19 20:25:15 View
Zoͦmͫвⷡiͥeͤ [GW8] (🧟) +6.125s
After 		-107.0 dBm -13.25 dB 5 LongFast 2026-02-19 20:25:17 View
svk2 883c SZAO Serebriany Bor (svk2) +11.191s
After 		-135.0 dBm -12.75 dB 5 LongFast 2026-02-19 20:25:22 View
patch866 (pth8) +12.880s
After 		-69.0 dBm -1.75 dB 5 LongFast 2026-02-19 20:25:24 View
RN3ABX Georgy 2 (ABX2) +26.016s
After 		-116.0 dBm -5.75 dB 7 LongFast 2026-02-19 20:25:37 View
ZA_MKAD_22_868_1 (8681) +78.992s
After 		-136.0 dBm -11.50 dB 6 LongFast 2026-02-19 20:26:30 View
MOBILENODE_433 (4331) +79.232s
After 		Unknown Unknown 7 LongFast 2026-02-19 20:26:30 View
NODE_SOLAR_868 (8682) +79.323s
After 		Unknown Unknown 7 LongFast 2026-02-19 20:26:30 View
MOBI_NODE_868_3 (8683) +79.614s
After 		Unknown Unknown 7 LongFast 2026-02-19 20:26:31 View
21

Total Receptions

21

Unique Gateways