Packet #17691506 Success

TELEMETRY_APP packet from Meshtastic f818 (f818) to !ffffffff

45
Total Receptions
1
Unique Gateways
1
Hop Count
28
Payload Bytes
Packet Information
Database ID: 17691506
Mesh Packet ID: 0xe533bbc1
Used for correlation across gateways
Timestamp: 2026-03-27 04:00:49 UTC
From Node: Meshtastic f818 (f818)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TELEMETRY_APP
Port: 67
Gateway: JPG 37fc (JPGx)
Channel: ShortFast
RSSI: -144 dBm
SNR: -17.25 dBm
Hop Info: 1/4 hops
Start: 4, Limit: 3
Relay Node: ab PBR1
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:89%
Voltage:4.05 V
Channel Usage:3.8%
Air Util TX:1.5%
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:!f71e37fc
Channel:ShortFast
Payload Type:TELEMETRY_APP
Hop Count:1 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 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 !f71e37fc
Node ID format
channel_id ShortFast
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1128069144
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 4
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -144.0 dBm
Signal strength at gateway 		int32
rx_snr -17.25 dB
Signal quality at gateway 		float
rx_time 1774584047
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 171
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774584049.6869025
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: ShortFast
  • ✓ 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: !f71e37fc
Signal Metrics: RSSI: -144.0 dBm
SNR: -17.25 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": 1774584017, "device_metrics": { "battery_level": 89, "voltage": 4.046, "channel_utilization": 3.78, "air_util_tx": 1.4884722, "uptime_seconds": 149122 } }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!f71e37fc", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128069144, "to": 4294967295, "id": 3845372865, "rx_time": 1774584047, "rx_snr": -17.25, "rx_rssi": -144, "hop_limit": 3, "hop_start": 4, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 171, "tx_after": 0, "decoded": { "portnum": 67, "payload": "0dd100c6691215085915d57881401d85eb7140254286be3f28828d09", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "time": 1774584017, "device_metrics": { "battery_level": 89, "voltage": 4.046, "channel_utilization": 3.78, "air_util_tx": 1.4884722, "uptime_seconds": 149122 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } } } }
Raw Packet Data (28 bytes)
0dd100c6691215085915d57881401d85eb7140254286be3f28828d09
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
JPG 37fc (JPGx) Primary 0.000s
Reference 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortFast 2026-03-27 04:00:49 UTC Current
JPG 37fc (JPGx) -0.804s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:48 UTC View
JPG 37fc (JPGx) -0.772s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:48 UTC View
JPG 37fc (JPGx) -0.737s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:48 UTC View
JPG 37fc (JPGx) -0.716s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:48 UTC View
JPG 37fc (JPGx) -0.694s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:48 UTC View
JPG 37fc (JPGx) -0.670s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.647s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.623s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.601s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.575s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.554s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.533s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 MediumFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.504s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 MediumFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.477s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 MediumFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.441s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 MediumFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.414s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 MediumFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.388s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 MediumFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.366s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 MediumFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.341s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 MediumFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.312s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 MediumFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.286s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 MediumFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.255s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 MediumFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.230s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.207s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.185s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.164s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.143s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.121s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.099s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.074s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.051s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) -0.025s
Before 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortFast 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.029s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortTurbo 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.050s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortTurbo 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.075s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortTurbo 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.102s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortTurbo 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.126s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortTurbo 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.151s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortTurbo 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.182s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortTurbo 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.204s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortTurbo 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.230s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortTurbo 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.267s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortTurbo 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.287s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 ShortTurbo 2026-03-27 04:00:49 UTC View
JPG 37fc (JPGx) +0.309s
After 		-144.0 dBm -17.25 dB 1 ab PBR1 LongFast 2026-03-27 04:00:49 UTC View
45

Total Receptions

1

Unique Gateways