Packet #1303850 Success

TELEMETRY_APP packet from N1UGK QTH (UGKH) to !ffffffff

12
Total Receptions
12
Unique Gateways
1
Hop Count
28
Payload Bytes
Packet Information
Database ID: 1303850
Mesh Packet ID: 0x448e01dc
Used for correlation across gateways
Timestamp: 2025-10-27 13:44:59 UTC
From Node: N1UGK QTH (UGKH)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TELEMETRY_APP
Port: 67
Gateway: SDT 2507 (2507)
Channel: LongFast
RSSI: -108 dBm
SNR: -8.0 dBm
Hop Info: 1/5 hops
Start: 5, Limit: 4
Relay Node: 66
Last byte of the last hop that relayed this packet
Payload Data
Protocol: TELEMETRY_APP
Size: 28 bytes
Decoded: Yes
Decoded Data:
Device Metrics:
Battery:101%
Air Util TX:0.2%
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:!dd462507
Channel:LongFast
Payload Type:TELEMETRY_APP
Hop Count:1 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !dd462507
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2733340684
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 4
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -108.0 dBm
Signal strength at gateway 		int32
rx_snr -8.00 dB
Signal quality at gateway 		float
rx_time 1761572742
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 102
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1761572699.23375
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)
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ 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
Gateway ID: !dd462507
Signal Metrics: RSSI: -108.0 dBm
SNR: -8.00 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": 1761572712, "device_metrics": { "battery_level": 101, "voltage": 0.0, "channel_utilization": 0.0, "air_util_tx": 0.18938889, "uptime_seconds": 1089028 } }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!dd462507", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2733340684, "to": 4294967295, "id": 1150157276, "rx_time": 1761572742, "rx_snr": -8.0, "rx_rssi": -108, "hop_limit": 4, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 102, "tx_after": 0, "decoded": { "portnum": 67, "payload": "0d6877ff681215086515000000001d000000002529ef413e2884bc42", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "time": 1761572712, "device_metrics": { "battery_level": 101, "voltage": 0.0, "channel_utilization": 0.0, "air_util_tx": 0.18938889, "uptime_seconds": 1089028 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } } } }
Raw Packet Data (28 bytes)
0d6877ff681215086515000000001d000000002529ef413e2884bc42
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
SDT 2507 (2507) Primary 0.000s
Reference 		-108.0 dBm -8.00 dB 1 66 LongFast 2025-10-27 13:44:59 UTC Current
Claudiopolis-440c (440c) +1.848s
After 		-98.0 dBm -16.25 dB 2 01 LongFast 2025-10-27 13:45:01 UTC View
dkTowerBot (dkTB) +2.746s
After 		-104.0 dBm -13.00 dB 1 e9 pab LongFast 2025-10-27 13:45:01 UTC View
Monkey (Mike) +2.858s
After 		-54.0 dBm 6.25 dB 2 c7 Jig LongFast 2025-10-27 13:45:02 UTC View
Poncho@pft! | MedSlow (pft!) +3.283s
After 		-119.0 dBm -18.50 dB 2 c7 Jig LongFast 2025-10-27 13:45:02 UTC View
drp mobile (drpm) +6.437s
After 		-127.0 dBm -17.75 dB 3 e6 LongFast 2025-10-27 13:45:05 UTC View
DRP1 Chelsea (DRP1) +6.571s
After 		-114.0 dBm -15.50 dB 3 e6 LongFast 2025-10-27 13:45:05 UTC View
ClaremontWx.net (CmWx) +7.420s
After 		-81.0 dBm -11.50 dB 4 f2 p@s! LongFast 2025-10-27 13:45:06 UTC View
Fried Fish 1 | nyme.sh (FF1) +7.955s
After 		-96.0 dBm -7.75 dB 3 0f 68SD LongFast 2025-10-27 13:45:07 UTC View
@_tedks (tks) +18.742s
After 		-112.0 dBm -18.50 dB 4 d8 LongFast 2025-10-27 13:45:17 UTC View
K2XAP / nyme.sh (XAP) +21.535s
After 		-37.0 dBm 6.25 dB 5 57 CmWx LongFast 2025-10-27 13:45:20 UTC View
Meshtastic 1ca3 (1ca3) +537.083s
After 		-120.0 dBm -10.75 dB 3 96 LongFast 2025-10-27 13:53:56 UTC View
12

Total Receptions

12

Unique Gateways