Packet #12438855 Success

TELEMETRY_APP packet from GRN1-Base🗼🌐 (GRN1) to !ffffffff

18
Total Receptions
18
Unique Gateways
1
Hop Count
28
Payload Bytes
Packet Information
Database ID: 12438855
Mesh Packet ID: 0x5ad0caef
Used for correlation across gateways
Timestamp: 2025-09-27 13:02:48 UTC
From Node: GRN1-Base🗼🌐 (GRN1)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TELEMETRY_APP
Port: 67
Gateway: Meshtastic c498📡🌐 (C498)
Channel: MediumSlow
RSSI: -119 dBm
SNR: -17.5 dBm
Hop Info: 1/3 hops
Start: 3, Limit: 2
Payload Data
Protocol: TELEMETRY_APP
Size: 28 bytes
Decoded: Yes
Decoded Data:
Device Metrics:
Battery:99%
Voltage:4.19 V
Channel Usage:9.6%
Air Util TX:0.5%
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:!7c5ac498
Channel:MediumSlow
Payload Type:TELEMETRY_APP
Hop Count:1 / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 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 !7c5ac498
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 1136068328
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 2
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -119.0 dBm
Signal strength at gateway 		int32
rx_snr -17.50 dB
Signal quality at gateway 		float
rx_time 1758978167
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 Not set uint32
tx_after Not set uint32
timestamp 1758978168.1683397
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
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !7c5ac498
Signal Metrics: RSSI: -119.0 dBm
SNR: -17.50 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": 1758978164, "device_metrics": { "battery_level": 99, "voltage": 4.189, "channel_utilization": 9.6, "air_util_tx": 0.5428889, "uptime_seconds": 495717 } }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!7c5ac498", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1136068328, "to": 4294967295, "id": 1523632879, "rx_time": 1758978167, "rx_snr": -17.5, "rx_rssi": -119, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 67, "payload": "0d74e0d76812150863154a0c86401d9a99194125c4fa0a3f28e5a01e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "time": 1758978164, "device_metrics": { "battery_level": 99, "voltage": 4.189, "channel_utilization": 9.6, "air_util_tx": 0.5428889, "uptime_seconds": 495717 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } } } }
Raw Packet Data (28 bytes)
0d74e0d76812150863154a0c86401d9a99194125c4fa0a3f28e5a01e
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 c498📡🌐 (C498) Primary 0.000s
Reference 		-119.0 dBm -17.50 dB 1 MediumSlow 2025-09-27 13:02:48 Current
Venturada2🗼🌐☀️ (Vb2) -1.323s
Before 		-98.0 dBm -0.75 dB 0 MediumSlow 2025-09-27 13:02:46 View
Rodashtastic🗼🌐 (RDSt) -0.925s
Before 		-115.0 dBm -6.75 dB 0 MediumSlow 2025-09-27 13:02:47 View
Will - Azuqueca (WAzq) -0.375s
Before 		-108.0 dBm 0.50 dB 1 MediumSlow 2025-09-27 13:02:47 View
Mec Rocket Meco (MRM) -0.372s
Before 		-119.0 dBm -15.75 dB 1 MediumSlow 2025-09-27 13:02:47 View
Fuenca fijo (c578) -0.109s
Before 		-121.0 dBm -7.75 dB 1 MediumSlow 2025-09-27 13:02:48 View
Baldur Fijo (BalF) -0.060s
Before 		-104.0 dBm 3.25 dB 1 MediumSlow 2025-09-27 13:02:48 View
SkG@Somewhere 🤨 (SkG?) -0.055s
Before 		-108.0 dBm Unknown 1 MediumSlow 2025-09-27 13:02:48 View
Machu Pichu (MaPi) -0.043s
Before 		-93.0 dBm 0.50 dB 1 MediumSlow 2025-09-27 13:02:48 View
Meshtastic 1760 (1760) -0.010s
Before 		-124.0 dBm -5.75 dB 1 MediumSlow 2025-09-27 13:02:48 View
Meshtastic 18a4 (18a4) -0.003s
Before 		-124.0 dBm -17.00 dB 1 MediumSlow 2025-09-27 13:02:48 View
Naranjo C191 🌐 (FNL) +0.021s
After 		-113.0 dBm -5.25 dB 1 MediumSlow 2025-09-27 13:02:48 View
[TLG] 📡🌐🔋🔌 (tlg0) +0.059s
After 		-118.0 dBm -14.00 dB 0 MediumSlow 2025-09-27 13:02:48 View
SkG@Home 📡🌐 (SkGH) +0.175s
After 		-121.0 dBm -12.00 dB 1 MediumSlow 2025-09-27 13:02:48 View
TO_Cala_Base2🗼🌐☀️ (33C8) +0.630s
After 		-111.0 dBm -12.50 dB 2 MediumSlow 2025-09-27 13:02:48 View
🌐Charly Unid Movil🛰 (C181) +1.244s
After 		-113.0 dBm -16.50 dB 2 MediumSlow 2025-09-27 13:02:49 View
Malasaña Solar ☀️ (🌇) +1.425s
After 		-118.0 dBm -13.50 dB 2 MediumSlow 2025-09-27 13:02:49 View
G71NCH3-NB-MAD-02 (G71B) +18.804s
After 		-39.0 dBm 8.00 dB 2 MediumSlow 2025-09-27 13:03:06 View
18

Total Receptions

18

Unique Gateways