Packet #196421 Success

TEXT_MESSAGE_APP packet from Meshtastic 54d4 (54d4) to KC3UBI Mobile www.svmesh.net (UBI+)

3
Total Receptions
2
Unique Gateways
1
Hop Count
6
Payload Bytes
Packet Information
Database ID: 196421
Mesh Packet ID: 0x4198ea0b
Used for correlation across gateways
Timestamp: 2026-04-24 19:31:59 UTC
From Node: Meshtastic 54d4 (54d4)
To Node: KC3UBI Mobile www.svmesh.net (UBI+)
Success: Processed
Protocol: TEXT_MESSAGE_APP
Port: 1
Gateway: MIB Node 0 - nepamesh (MIB0)
Channel: LongFast
RSSI: -94 dBm
SNR: -5.75 dBm
Hop Info: 1/3 hops
Start: 3, Limit: 2
Relay Node: d7 bbd7 , SVMI , 75d7 , VOLT , c8d7 , 7cd7 , NVVV
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: TEXT_MESSAGE_APP
Size: 6 bytes
Decoded: Yes
Text Content:
Check?
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:6 bytes
Gateway:!b2a72e48
Channel:LongFast
Payload Type:TEXT_MESSAGE_APP
Hop Count:1 / 3
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 2 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

FieldValue
gateway_id !b2a72e48
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (6 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

FieldValueType
from 2794869972
Source node ID 		uint32
to 1136627020
Target node ID 		uint32
decoded.portnum TEXT_MESSAGE_APP
TEXT_MESSAGE_APP 		enum
decoded.payload_length 6 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 -94.0 dBm
Signal strength at gateway 		int32
rx_snr -5.75 dB
Signal quality at gateway 		float
rx_time 1777051071
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack True
Acknowledgment 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 215
Relay node ID 		uint32
tx_after Not set uint32
timestamp Not set 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)
  • ✓ Acknowledgment requested
  • ✓ 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
Want ack: True
Gateway ID: !b2a72e48
Signal Metrics: RSSI: -94.0 dBm
SNR: -5.75 dB
Complete Protobuf Decode (JSON)
{ "service_envelope": { "packet": { "from": 2794869972, "to": 1136627020, "decoded": { "portnum": "TEXT_MESSAGE_APP", "payload": "Q2hlY2s/", "bitfield": 0 }, "id": 1100540427, "rx_time": 1777051071, "rx_snr": -5.75, "hop_limit": 2, "want_ack": true, "rx_rssi": -94, "hop_start": 3, "relay_node": 215, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!b2a72e48" }, "mesh_packet": { "from": 2794869972, "to": 1136627020, "decoded": { "portnum": "TEXT_MESSAGE_APP", "payload": "Q2hlY2s/", "bitfield": 0, "parsed_payload": { "text": "Check?", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } }, "id": 1100540427, "rx_time": 1777051071, "rx_snr": -5.75, "hop_limit": 2, "want_ack": true, "rx_rssi": -94, "hop_start": 3, "relay_node": 215, "transport_mechanism": "TRANSPORT_LORA" } }
Raw Packet Data (6 bytes)
436865636b3f
Hex Analysis:
Size:6 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
MIB Node 0 - nepamesh (MIB0) Primary 0.000s
Reference 		-94.0 dBm -5.75 dB 1 d7 bbd7 , SVMI , 75d7 , VOLT , c8d7 , 7cd7 , NVVV LongFast 2026-04-24 19:31:59 UTC Current
0 hops (direct receptions) Gateways that heard the packet directly from the source
MIB Node 0 - nepamesh (MIB0) +0.016s
After 		-94.0 dBm -5.75 dB 0 d7 bbd7 , SVMI , 75d7 , VOLT , c8d7 , 7cd7 , NVVV LongFast 2026-04-24 19:31:59 UTC View
2 hops Gateways that received this packet after 2 hops
wi3w-base (w00b) +1.251s
After 		-113.0 dBm -18.25 dB 2 e0 f6e0 , 2ee0 , 53e0 , KFOG , IRON , 3ae0 , 6de0 , SVMI , mCit , CVWH LongFast 2026-04-24 19:32:00 UTC View
3

Total Receptions

2

Unique Gateways