Packet #4033337 Success

NODEINFO_APP packet from Meshtastic_HCTR (HCTR) to Meshtastic 6994 (6994)

10
Total Receptions
10
Unique Gateways
4
Hop Count
80
Payload Bytes
Packet Information
Database ID: 4033337
Mesh Packet ID: 0x44d155c1
Used for correlation across gateways
Timestamp: 2025-12-24 11:35:31 UTC
From Node: Meshtastic_HCTR (HCTR)
To Node: Meshtastic 6994 (6994)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Izutsumi - seano@masto.nyc (izu)
Channel: LongFast
RSSI: -107 dBm
SNR: -6.75 dBm
Hop Info: 4/4 hops
Start: 4, Limit: 0
Relay Node: 0c 440c
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: NODEINFO_APP
Size: 80 bytes
Decoded: Yes
Decoded Data:
Long Name:Meshtastic_HCTR
Short Name:HCTR
Node ID:!0819a2f6
MAC Address:6T4IGaL2
Hardware:QWANTZ_TINY_ARMS
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:80 bytes
Gateway:!c2c9b4f5
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:4 / 4
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 !c2c9b4f5
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (80 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 135897846
Source node ID 		uint32
to 862153108
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 80 bytes size
hop_limit Not set uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -107.0 dBm
Signal strength at gateway 		int32
rx_snr -6.75 dB
Signal quality at gateway 		float
rx_time 1766576298
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 12
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766576131.6503081
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: !c2c9b4f5
Signal Metrics: RSSI: -107.0 dBm
SNR: -6.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:80 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!0819a2f6", "long_name": "Meshtastic_HCTR", "short_name": "HCTR", "macaddr": "6T4IGaL2", "hw_model": "QWANTZ_TINY_ARMS" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!c2c9b4f5", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 135897846, "to": 862153108, "id": 1154569665, "rx_time": 1766576298, "rx_snr": -6.75, "rx_rssi": -107, "hop_limit": 0, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 12, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213038313961326636120f4d6573687461737469635f484354521a04484354522206e93e0819a2f628654220cfabdb1c599526be94cf35339528796089b7b895f17297a2ab455e08da2f7d044800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!0819a2f6", "long_name": "Meshtastic_HCTR", "short_name": "HCTR", "macaddr": "6T4IGaL2", "hw_model": "QWANTZ_TINY_ARMS", "public_key": "z6vbHFmVJr6UzzUzlSh5YIm3uJXxcpeiq0VeCNovfQQ=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (80 bytes)
0a09213038313961326636120f4d6573687461737469635f484354521a04484354522206e93e0819a2f628654220cfabdb1c599526be94cf35339528796089b7b895f17297a2ab455e08da2f7d044800
Hex Analysis:
Size:80 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 Relay Channel Timestamp Actions
Izutsumi - seano@masto.nyc (izu) Primary 0.000s
Reference 		-107.0 dBm -6.75 dB 4 0c 440c LongFast 2025-12-24 11:35:31 UTC Current
dkTowerBot (dkTB) -8.226s
Before 		-106.0 dBm -17.00 dB 2 7b 4b7b LongFast 2025-12-24 11:35:23 UTC View
25 Washington Ave (25WA) -8.214s
Before 		-79.0 dBm -6.00 dB 2 7b 4b7b LongFast 2025-12-24 11:35:23 UTC View
Steiner Studios Tower (SST) -8.204s
Before 		-116.0 dBm -9.25 dB 2 7b 4b7b LongFast 2025-12-24 11:35:23 UTC View
YMH 1 @ Your Mom’s House (YMH1) -8.193s
Before 		-109.0 dBm -7.25 dB 2 7b 4b7b LongFast 2025-12-24 11:35:23 UTC View
KageNet Decker (D3KR) -7.867s
Before 		-121.0 dBm -12.00 dB 2 7b 4b7b LongFast 2025-12-24 11:35:23 UTC View
CBZ0 🚕 mobile (CBZ0) -7.640s
Before 		-123.0 dBm -13.25 dB 2 7b 4b7b LongFast 2025-12-24 11:35:24 UTC View
nLink-NY-Jamaica1 (NLJ1) -4.181s
Before 		-95.0 dBm -11.00 dB 3 d1 JLY6 LongFast 2025-12-24 11:35:27 UTC View
Meshtastic 631c (GRBH) +0.010s
After 		-105.0 dBm -17.00 dB 4 1c GRBH LongFast 2025-12-24 11:35:31 UTC View
K2XAP / nyme.sh (XAP) +0.355s
After 		-123.0 dBm -15.00 dB 4 0c 440c LongFast 2025-12-24 11:35:32 UTC View
10

Total Receptions

10

Unique Gateways