Packet #39486833 Success

TELEMETRY_APP packet from dcn1 medfast (dcmf) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
29
Payload Bytes
Packet Information
Database ID: 39486833
Mesh Packet ID: 0x6447831e
Used for correlation across gateways
Timestamp: 2026-05-16 07:39:00 UTC
From Node: dcn1 medfast (dcmf)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TELEMETRY_APP
Port: 67
Gateway: DCmesh (mshd)
Channel: ShortTurbo
RSSI: -35 dBm
SNR: 11.75 dBm
Hop Info: 0/3 hops
Start: 3, Limit: 3
Relay Node: e5 dcmf
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: TELEMETRY_APP
Size: 29 bytes
Decoded: Yes
Decoded Data:
Device Metrics:
Battery:101%
Voltage:4.19 V
Channel Usage:3.3%
Air Util TX:0.6%
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:29 bytes
Gateway:!da627be0
Channel:ShortTurbo
Payload Type:TELEMETRY_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortTurbo
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !da627be0
Node ID format
channel_id ShortTurbo
packet MeshPacket (29 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1474778853
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 67
TELEMETRY_APP
enum
decoded.payload_length 29 bytes size
hop_limit 3
Remaining hops allowed
uint32
hop_start 3
Initial hop limit
uint32
hops_taken 0
Calculated: hop_start - hop_limit
derived
rx_rssi -35.0 dBm
Signal strength at gateway
int32
rx_snr 11.75 dB
Signal quality at gateway
float
rx_time 1778917137
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 229
Relay node ID
uint32
tx_after Not set uint32
timestamp 1778917140.5885835
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)
  • ✓ Custom channel: ShortTurbo
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !da627be0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -35.0 dBm
SNR: 11.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:TELEMETRY_APP
Size:29 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "time": 1778917147, "device_metrics": { "battery_level": 101, "voltage": 4.193, "channel_utilization": 3.2833333, "air_util_tx": 0.5882222, "uptime_seconds": 2691516 } }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!da627be0", "channel_id": "ShortTurbo", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1474778853, "to": 4294967295, "id": 1682408222, "rx_time": 1778917137, "rx_snr": 11.75, "rx_rssi": -35, "hop_limit": 3, "hop_start": 3, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 229, "tx_after": 0, "decoded": { "portnum": 67, "payload": "0d1b1f086a12160865150e2d86401d2222524025bb95163f28bca3a401", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "time": 1778917147, "device_metrics": { "battery_level": 101, "voltage": 4.193, "channel_utilization": 3.2833333, "air_util_tx": 0.5882222, "uptime_seconds": 2691516 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } } } }
Raw Packet Data (29 bytes)
0d1b1f086a12160865150e2d86401d2222524025bb95163f28bca3a401
Hex Analysis:
Size:29 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
DCmesh (mshd) Primary 0.000s
Reference
-35.0 dBm 11.75 dB 0 e5 dcmf ShortTurbo 2026-05-16 07:39:00 UTC Current
DCmesh (mshd) -0.898s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf MediumFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.864s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.843s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.822s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.801s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.781s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.757s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.722s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.698s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.676s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.655s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.634s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.613s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf MediumFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.590s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf MediumFast 2026-05-16 07:38:59 UTC View
DCmesh (mshd) -0.555s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf MediumFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.532s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf MediumFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.509s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf MediumFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.487s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf MediumFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.466s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf MediumFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.444s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf MediumFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.423s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf MediumFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.401s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf MediumFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.376s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.354s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.331s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.309s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.288s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.267s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.246s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.224s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.200s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.177s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.154s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortFast 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.132s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortTurbo 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.111s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortTurbo 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.090s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortTurbo 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.069s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortTurbo 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.047s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortTurbo 2026-05-16 07:39:00 UTC View
DCmesh (mshd) -0.023s
Before
-35.0 dBm 11.75 dB 0 e5 dcmf ShortTurbo 2026-05-16 07:39:00 UTC View
DCmesh (mshd) +0.023s
After
-35.0 dBm 11.75 dB 0 e5 dcmf ShortTurbo 2026-05-16 07:39:00 UTC View
DCmesh (mshd) +0.045s
After
-35.0 dBm 11.75 dB 0 e5 dcmf ShortTurbo 2026-05-16 07:39:00 UTC View
DCmesh (mshd) +0.065s
After
-35.0 dBm 11.75 dB 0 e5 dcmf ShortTurbo 2026-05-16 07:39:00 UTC View
DCmesh (mshd) +0.086s
After
-35.0 dBm 11.75 dB 0 e5 dcmf ShortTurbo 2026-05-16 07:39:00 UTC View
DCmesh (mshd) +0.108s
After
-35.0 dBm 11.75 dB 0 e5 dcmf LongFast 2026-05-16 07:39:00 UTC View
45

Total Receptions

1

Unique Gateways