Packet #2666979 Success

TELEMETRY_APP packet from Nicomachus (ncmc) to !ffffffff

15
Total Receptions
15
Unique Gateways
1
Hop Count
27
Payload Bytes
Packet Information
Database ID: 2666979
Mesh Packet ID: 0xdbb3e35f
Used for correlation across gateways
Timestamp: 2025-11-23 21:25:57 UTC
From Node: Nicomachus (ncmc)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TELEMETRY_APP
Port: 67
Gateway: Nicomachus 🏃 (ncmp)
Channel: LongFast
RSSI: -98 dBm
SNR: -0.75 dBm
Hop Info: 1/4 hops
Start: 4, Limit: 3
Relay Node: 81 Titi
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: 27 bytes
Decoded: Yes
Decoded Data:
Device Metrics:
Battery:95%
Voltage:4.13 V
Channel Usage:15.8%
Air Util TX:0.1%
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:27 bytes
Gateway:!c9553a20
Channel:LongFast
Payload Type:TELEMETRY_APP
Hop Count:1 / 4
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 !c9553a20
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (27 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2658555520
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 67
TELEMETRY_APP 		enum
decoded.payload_length 27 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -98.0 dBm
Signal strength at gateway 		int32
rx_snr -0.75 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 129
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1763933157.7488368
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: !c9553a20
Signal Metrics: RSSI: -98.0 dBm
SNR: -0.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:TELEMETRY_APP
Size:27 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "time": 1763933242, "device_metrics": { "battery_level": 95, "voltage": 4.132, "channel_utilization": 15.85, "air_util_tx": 0.13377778, "uptime_seconds": 481 } }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!c9553a20", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2658555520, "to": 4294967295, "id": 3685999455, "rx_time": 0, "rx_snr": -0.75, "rx_rssi": -98, "hop_limit": 3, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 129, "tx_after": 0, "decoded": { "portnum": 67, "payload": "0d3a7c23691214085f15583984401d9a997d41250bfd083e28e103", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "time": 1763933242, "device_metrics": { "battery_level": 95, "voltage": 4.132, "channel_utilization": 15.85, "air_util_tx": 0.13377778, "uptime_seconds": 481 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } } } }
Raw Packet Data (27 bytes)
0d3a7c23691214085f15583984401d9a997d41250bfd083e28e103
Hex Analysis:
Size:27 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
Nicomachus 🏃 (ncmp) Primary 0.000s
Reference 		-98.0 dBm -0.75 dB 1 81 Titi LongFast 2025-11-23 21:25:57 UTC Current
dkTowerBot (dkTB) -8.444s
Before 		-106.0 dBm -18.25 dB 1 81 Titi , JLO9 LongFast 2025-11-23 21:25:49 UTC View
Steiner Studios Tower (SST) -8.439s
Before 		-117.0 dBm -8.75 dB 1 81 Titi , JLO9 LongFast 2025-11-23 21:25:49 UTC View
ClaremontWx.net (CmWx) -8.427s
Before 		-86.0 dBm 2.00 dB 1 81 Titi LongFast 2025-11-23 21:25:49 UTC View
Sunset Soda (p8p) -8.071s
Before 		-122.0 dBm -10.50 dB 1 81 Titi LongFast 2025-11-23 21:25:49 UTC View
K2XAP V4 MS (XAP4) -7.190s
Before 		-7.0 dBm 5.75 dB 2 57 CmWx LongFast 2025-11-23 21:25:50 UTC View
Poncho@PTSD | MediumSlow (pppp) -6.915s
Before 		-86.0 dBm -5.25 dB 2 57 CmWx LongFast 2025-11-23 21:25:50 UTC View
K2XAP / nyme.sh (XAP) -6.845s
Before 		-44.0 dBm 5.75 dB 2 57 CmWx LongFast 2025-11-23 21:25:50 UTC View
Fried Fish 1 | nyme.sh (FF1) -5.688s
Before 		-88.0 dBm -2.25 dB 3 d4 LongFast 2025-11-23 21:25:52 UTC View
@_tedks02 (tks2) -4.869s
Before 		-75.0 dBm 3.75 dB 3 9b KOS0 LongFast 2025-11-23 21:25:52 UTC View
MeshM0xie (M0x) -4.282s
Before 		-95.0 dBm -0.25 dB 3 c9 Penn LongFast 2025-11-23 21:25:53 UTC View
YMH 1 @ Your Mom’s House (YMH1) -4.263s
Before 		-123.0 dBm -14.50 dB 3 c9 Penn LongFast 2025-11-23 21:25:53 UTC View
DRP1 Chelsea (DRP1) -3.918s
Before 		-78.0 dBm 5.75 dB 3 c9 Penn , JLX3 LongFast 2025-11-23 21:25:53 UTC View
YMH 2 @ Your Mom’s House (YMH2) -1.519s
Before 		-77.0 dBm -12.25 dB 4 90 NLG1 LongFast 2025-11-23 21:25:56 UTC View
Meshtastic 631c (631c) +52.086s
After 		-107.0 dBm -16.00 dB 3 3d PDD0 , P1NY LongFast 2025-11-23 21:26:49 UTC View
15

Total Receptions

15

Unique Gateways