Packet #39477815 Success

POSITION_APP packet from Happy Eric (:)) to !ffffffff

45
Total Receptions
1
Unique Gateways
4
Hop Count
36
Payload Bytes
Packet Information
Database ID: 39477815
Mesh Packet ID: 0x876148ce
Used for correlation across gateways
Timestamp: 2026-05-16 07:00:57 UTC
From Node: Happy Eric (:))
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic b018 (b018)
Channel: ShortTurbo
RSSI: -123 dBm
SNR: -12.25 dBm
Hop Info: 4/7 hops
Start: 7, Limit: 3
Relay Node: a8
Last byte of the last hop that relayed this packet
Payload Data
Protocol: POSITION_APP
Size: 36 bytes
Decoded: Yes
Decoded Data:
Latitude:46.163558°
Longitude:-72.482816°
Altitude:53 m
Satellites:12
Precision:13 bits
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:36 bytes
Gateway:!db51b018
Channel:ShortTurbo
Payload Type:POSITION_APP
Hop Count:4 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortTurbo
+ 2 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 !db51b018
Node ID format
channel_id ShortTurbo
packet MeshPacket (36 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3682167912
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 36 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -123.0 dBm
Signal strength at gateway 		int32
rx_snr -12.25 dB
Signal quality at gateway 		float
rx_time 1778914856
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 168
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1778914857.8235655
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: ShortTurbo
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !db51b018
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -123.0 dBm
SNR: -12.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:36 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 46.1635584, "longitude": -72.482816, "altitude": 53, "sats_in_view": 12, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db51b018", "channel_id": "ShortTurbo", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3682167912, "to": 4294967295, "id": 2271299790, "rx_time": 1778914856, "rx_snr": -12.25, "rx_rssi": -123, "hop_limit": 3, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 168, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000841b150000ccd41835252116086a280258960178008001c0e1ee0f98010cb8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 461635584, "longitude_i": -724828160, "altitude": 53, "time": 1778914849, "location_source": "LOC_INTERNAL", "PDOP": 150, "ground_speed": 0, "ground_track": 33272000, "sats_in_view": 12, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (36 bytes)
0d0000841b150000ccd41835252116086a280258960178008001c0e1ee0f98010cb8010d
Hex Analysis:
Size:36 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
Meshtastic b018 (b018) Primary 0.000s
Reference 		-123.0 dBm -12.25 dB 4 a8 ShortTurbo 2026-05-16 07:00:57 UTC Current
Meshtastic b018 (b018) -0.570s
Before 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.538s
Before 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.528s
Before 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.517s
Before 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.501s
Before 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.484s
Before 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.467s
Before 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.450s
Before 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.425s
Before 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.414s
Before 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.396s
Before 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.379s
Before 		-123.0 dBm -12.25 dB 4 a8 MediumFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.363s
Before 		-123.0 dBm -12.25 dB 4 a8 MediumFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.352s
Before 		-123.0 dBm -12.25 dB 4 a8 MediumFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.343s
Before 		-123.0 dBm -12.25 dB 4 a8 MediumFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.334s
Before 		-123.0 dBm -12.25 dB 4 a8 MediumFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.325s
Before 		-123.0 dBm -12.25 dB 4 a8 MediumFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.316s
Before 		-123.0 dBm -12.25 dB 4 a8 MediumFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.299s
Before 		-123.0 dBm -12.25 dB 4 a8 MediumFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.290s
Before 		-123.0 dBm -12.25 dB 4 a8 MediumFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.276s
Before 		-123.0 dBm -12.25 dB 4 a8 MediumFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.255s
Before 		-123.0 dBm -12.25 dB 4 a8 MediumFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.242s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.230s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.218s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.206s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.194s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.182s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.171s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.159s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.149s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.138s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.127s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortFast 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.116s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortTurbo 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.105s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortTurbo 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.094s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortTurbo 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.083s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortTurbo 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.071s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortTurbo 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.059s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortTurbo 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.047s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortTurbo 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.035s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortTurbo 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.024s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortTurbo 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) -0.012s
Before 		-123.0 dBm -12.25 dB 4 a8 ShortTurbo 2026-05-16 07:00:57 UTC View
Meshtastic b018 (b018) +0.012s
After 		-123.0 dBm -12.25 dB 4 a8 LongFast 2026-05-16 07:00:57 UTC View
45

Total Receptions

1

Unique Gateways