Packet #28403631 Success

TELEMETRY_APP packet from Meshtastic ca85 (ca85) to !ffffffff

19
Total Receptions
19
Unique Gateways
3
Hop Count
28
Payload Bytes
Packet Information
Database ID: 28403631
Mesh Packet ID: 0xb1dd7565
Used for correlation across gateways
Timestamp: 2025-12-18 04:22:21 UTC
From Node: Meshtastic ca85 (ca85)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TELEMETRY_APP
Port: 67
Gateway: [samsepi0l] 📡🌐 (tlg0)
Channel: MediumFast
RSSI: -99 dBm
SNR: -3.75 dBm
Hop Info: 3/4 hops
Start: 4, Limit: 1
Relay Node: c8 c4c8
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: 28 bytes
Decoded: Yes
Decoded Data:
Device Metrics:
Battery:15%
Voltage:3.74 V
Channel Usage:0.3%
Air Util TX:0.0%
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:!69828c38
Channel:MediumFast
Payload Type:TELEMETRY_APP
Hop Count:3 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !69828c38
Node ID format
channel_id MediumFast
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1289341573
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 1
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -99.0 dBm
Signal strength at gateway 		int32
rx_snr -3.75 dB
Signal quality at gateway 		float
rx_time Not set 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 200
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766031741.7840865
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: MediumFast
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !69828c38
Signal Metrics: RSSI: -99.0 dBm
SNR: -3.75 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": 1766031721, "device_metrics": { "battery_level": 15, "voltage": 3.739, "channel_utilization": 0.28333333, "air_util_tx": 0.013555556, "uptime_seconds": 564370 } }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!69828c38", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1289341573, "to": 4294967295, "id": 2984080741, "rx_time": 0, "rx_snr": -3.75, "rx_rssi": -99, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 200, "tx_after": 0, "decoded": { "portnum": 67, "payload": "0d698143691215080f15c74b6f401d1111913e251f185e3c2892b922", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "time": 1766031721, "device_metrics": { "battery_level": 15, "voltage": 3.739, "channel_utilization": 0.28333333, "air_util_tx": 0.013555556, "uptime_seconds": 564370 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } } } }
Raw Packet Data (28 bytes)
0d698143691215080f15c74b6f401d1111913e251f185e3c2892b922
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 Relay Channel Timestamp Actions
[samsepi0l] 📡🌐 (tlg0) Primary 0.000s
Reference 		-99.0 dBm -3.75 dB 3 c8 c4c8 MediumFast 2025-12-18 04:22:21 UTC Current
Meshtastic ca85 (ca85) -20.684s
Before 		Unknown Unknown 0 85 ca85 MediumFast 2025-12-18 04:22:01 UTC View
Meshtastic 870c📡🌐 (870c) -18.713s
Before 		-109.0 dBm 0.75 dB 0 85 ca85 MediumFast 2025-12-18 04:22:03 UTC View
Karabanchel_Baldur (KarB) -10.279s
Before 		-110.0 dBm -10.25 dB 1 dc d0dc MediumFast 2025-12-18 04:22:11 UTC View
Meshtastic b2b4📡🌐 (b2b4) -9.781s
Before 		-116.0 dBm -14.50 dB 2 88 KarB MediumFast 2025-12-18 04:22:12 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -9.705s
Before 		-102.0 dBm -11.25 dB 2 88 KarB MediumFast 2025-12-18 04:22:12 UTC View
🤖 Nicolas Cage 🌐 (Cage) -9.517s
Before 		-123.0 dBm -14.25 dB 2 88 KarB MediumFast 2025-12-18 04:22:12 UTC View
🎄 SkG@Home 📡🌐 (SkGH) -9.323s
Before 		-95.0 dBm -3.75 dB 3 61 TO1 MediumFast 2025-12-18 04:22:12 UTC View
Meshtastic 26b0 (26b0) -9.318s
Before 		-86.0 dBm 6.00 dB 3 61 TO1 MediumFast 2025-12-18 04:22:12 UTC View
ETH Maverick (ET01) -9.043s
Before 		-106.0 dBm -6.00 dB 3 61 TO1 MediumFast 2025-12-18 04:22:12 UTC View
Ocumare Norte🗼🌐 (RRN) -8.969s
Before 		-104.0 dBm -7.50 dB 4 b0 Vbm , 26b0 MediumFast 2025-12-18 04:22:12 UTC View
Fenix (FENX) -8.918s
Before 		-117.0 dBm -9.50 dB 3 61 TO1 MediumFast 2025-12-18 04:22:12 UTC View
Pozuelo (POZ1) -8.645s
Before 		-94.0 dBm -12.00 dB 4 b0 26b0 MediumFast 2025-12-18 04:22:13 UTC View
Eagle’s Nest (EAGL) -8.402s
Before 		-114.0 dBm -3.50 dB 4 74 MediumFast 2025-12-18 04:22:13 UTC View
Villarejo01 (VIL1) -8.363s
Before 		-35.0 dBm 11.25 dB 4 c6 d5c6 MediumFast 2025-12-18 04:22:13 UTC View
ETH Goose (ET03) -8.280s
Before 		-118.0 dBm -13.75 dB 4 72 Knb1 MediumFast 2025-12-18 04:22:13 UTC View
Meshtastic JT01 (JT01) -8.240s
Before 		-125.0 dBm -14.00 dB 4 13 Sir MediumFast 2025-12-18 04:22:13 UTC View
Mec Rocket Meco (MRM) -8.238s
Before 		-111.0 dBm -10.00 dB 4 13 Sir MediumFast 2025-12-18 04:22:13 UTC View
GRN1-Base🗼🌐 🔋 (GRN1) -8.236s
Before 		-113.0 dBm -8.50 dB 4 04 CV01 MediumFast 2025-12-18 04:22:13 UTC View
19

Total Receptions

19

Unique Gateways