Packet #13875669 Success

TELEMETRY_APP packet from Meshtastic 18a4 (18a4) to !ffffffff

10
Total Receptions
10
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
Database ID: 13875669
Mesh Packet ID: 0xa9929316
Used for correlation across gateways
Timestamp: 2025-10-06 15:38:41 UTC
From Node: Meshtastic 18a4 (18a4)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TELEMETRY_APP
Port: 67
Gateway: Meshtastic 1760 (1760)
Channel: MediumSlow
RSSI: -51 dBm
SNR: 10.5 dBm
Hop Info: 0/3 hops
Start: 3, Limit: 3
Payload Data
Protocol: TELEMETRY_APP
Size: 28 bytes
Decoded: Yes
Decoded Data:
Device Metrics:
Battery:101%
Voltage:-0.00 V
Channel Usage:5.0%
Air Util TX:0.9%
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:28 bytes
Gateway:!c0c31760
Channel:MediumSlow
Payload Type:TELEMETRY_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 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 !c0c31760
Node ID format
channel_id MediumSlow
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3234011300
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 67
TELEMETRY_APP 		enum
decoded.payload_length 28 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 -51.0 dBm
Signal strength at gateway 		int32
rx_snr 10.50 dB
Signal quality at gateway 		float
rx_time 1759765120
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 164
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759765121.8444605
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: MediumSlow
  • ✓ 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: !c0c31760
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -51.0 dBm
SNR: 10.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:TELEMETRY_APP
Size:28 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "time": 1759765192, "device_metrics": { "battery_level": 101, "voltage": -0.001, "channel_utilization": 5.0233335, "air_util_tx": 0.85658336, "uptime_seconds": 240810 } }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!c0c31760", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3234011300, "to": 4294967295, "id": 2844955414, "rx_time": 1759765120, "rx_snr": 10.5, "rx_rssi": -51, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 164, "tx_after": 0, "decoded": { "portnum": 67, "payload": "0dc8e2e36812150865156f1283ba1d26bfa040250c495b3f28aad90e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "time": 1759765192, "device_metrics": { "battery_level": 101, "voltage": -0.001, "channel_utilization": 5.0233335, "air_util_tx": 0.85658336, "uptime_seconds": 240810 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } } } }
Raw Packet Data (28 bytes)
0dc8e2e36812150865156f1283ba1d26bfa040250c495b3f28aad90e
Hex Analysis:
Size:28 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
Meshtastic 1760 (1760) Primary 0.000s
Reference 		-51.0 dBm 10.50 dB 0 MediumSlow 2025-10-06 15:38:41 Current
Meshtastic 18a4 (18a4) -2.324s
Before 		Unknown Unknown 0 MediumSlow 2025-10-06 15:38:39 View
Kenobi23 QTH (5aec) +3.933s
After 		-91.0 dBm 2.75 dB 1 MediumSlow 2025-10-06 15:38:45 View
Venturada2🗼🌐☀️ (Vb2) +4.485s
After 		-101.0 dBm -8.50 dB 2 MediumSlow 2025-10-06 15:38:46 View
Oxygen EA4HKU (O) +4.502s
After 		-114.0 dBm -10.75 dB 2 MediumSlow 2025-10-06 15:38:46 View
Carbon EA4HKU (C) +4.779s
After 		-118.0 dBm -7.50 dB 2 MediumSlow 2025-10-06 15:38:46 View
Baldur Fijo (BalF) +4.794s
After 		-116.0 dBm -9.25 dB 2 MediumSlow 2025-10-06 15:38:46 View
GRN1-Base🗼🌐 (GRN1) +5.325s
After 		-91.0 dBm -0.25 dB 3 MediumSlow 2025-10-06 15:38:47 View
Villalbilla02 (VBV2) +5.520s
After 		-111.0 dBm -4.50 dB 3 MediumSlow 2025-10-06 15:38:47 View
[TLG] 📡🌐🔋🔌 (tlg0) +6.209s
After 		-111.0 dBm -5.75 dB 3 MediumSlow 2025-10-06 15:38:48 View
10

Total Receptions

10

Unique Gateways