Packet #39486061 Success

POSITION_APP packet from id0_node1 (id01) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
17
Payload Bytes
Packet Information
Database ID: 39486061
Mesh Packet ID: 0x236d70fb
Used for correlation across gateways
Timestamp: 2026-05-16 07:36:00 UTC
From Node: id0_node1 (id01)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: DIR Rooftop (DIR)
Channel: LongFast
RSSI: -91 dBm
SNR: -4.5 dBm
Hop Info: 0/5 hops
Start: 5, Limit: 5
Relay Node: a8 id01
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: POSITION_APP
Size: 17 bytes
Decoded: Yes
Decoded Data:
Latitude:45.534413°
Longitude:-73.531392°
Altitude:40 m
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:17 bytes
Gateway:!6985083c
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:Unknown / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !6985083c
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (17 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2475133608
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 3
POSITION_APP
enum
decoded.payload_length 17 bytes size
hop_limit 5
Remaining hops allowed
uint32
hop_start 5
Initial hop limit
uint32
hops_taken 0
Calculated: hop_start - hop_limit
derived
rx_rssi -91.0 dBm
Signal strength at gateway
int32
rx_snr -4.50 dB
Signal quality at gateway
float
rx_time 1778916960
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 1778916960.6496675
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
  • ✓ Reduced position precision: ~2900.0m accuracy
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !6985083c
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -91.0 dBm
SNR: -4.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:17 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 45.5344128, "longitude": -73.531392, "altitude": 40, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!6985083c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2475133608, "to": 4294967295, "id": 594374907, "rx_time": 1778916960, "rx_snr": -4.5, "rx_rssi": -91, "hop_limit": 5, "hop_start": 5, "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": "0d0000241b1500002cd418282801b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 455344128, "longitude_i": -735313920, "altitude": 40, "location_source": "LOC_MANUAL", "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (17 bytes)
0d0000241b1500002cd418282801b8010d
Hex Analysis:
Size:17 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
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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
DIR Rooftop (DIR) Primary 0.000s
Reference
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:00 UTC Current
DIR Rooftop (DIR) -0.367s
Before
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) -0.023s
Before
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) -0.012s
Before
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.012s
After
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.022s
After
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.039s
After
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.050s
After
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.061s
After
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.071s
After
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.085s
After
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.096s
After
-91.0 dBm -4.50 dB 0 a8 id01 MediumFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.108s
After
-91.0 dBm -4.50 dB 0 a8 id01 MediumFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.119s
After
-91.0 dBm -4.50 dB 0 a8 id01 MediumFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.129s
After
-91.0 dBm -4.50 dB 0 a8 id01 MediumFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.144s
After
-91.0 dBm -4.50 dB 0 a8 id01 MediumFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.161s
After
-91.0 dBm -4.50 dB 0 a8 id01 MediumFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.173s
After
-91.0 dBm -4.50 dB 0 a8 id01 MediumFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.186s
After
-91.0 dBm -4.50 dB 0 a8 id01 MediumFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.200s
After
-91.0 dBm -4.50 dB 0 a8 id01 MediumFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.211s
After
-91.0 dBm -4.50 dB 0 a8 id01 MediumFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.224s
After
-91.0 dBm -4.50 dB 0 a8 id01 MediumFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.236s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.245s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.255s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.266s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.276s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.287s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.298s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.308s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.319s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.331s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.343s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortFast 2026-05-16 07:36:00 UTC View
DIR Rooftop (DIR) +0.355s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortTurbo 2026-05-16 07:36:01 UTC View
DIR Rooftop (DIR) +0.367s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortTurbo 2026-05-16 07:36:01 UTC View
DIR Rooftop (DIR) +0.378s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortTurbo 2026-05-16 07:36:01 UTC View
DIR Rooftop (DIR) +0.390s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortTurbo 2026-05-16 07:36:01 UTC View
DIR Rooftop (DIR) +0.401s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortTurbo 2026-05-16 07:36:01 UTC View
DIR Rooftop (DIR) +0.413s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortTurbo 2026-05-16 07:36:01 UTC View
DIR Rooftop (DIR) +0.424s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortTurbo 2026-05-16 07:36:01 UTC View
DIR Rooftop (DIR) +0.434s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortTurbo 2026-05-16 07:36:01 UTC View
DIR Rooftop (DIR) +0.445s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortTurbo 2026-05-16 07:36:01 UTC View
DIR Rooftop (DIR) +0.456s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortTurbo 2026-05-16 07:36:01 UTC View
DIR Rooftop (DIR) +0.466s
After
-91.0 dBm -4.50 dB 0 a8 id01 ShortTurbo 2026-05-16 07:36:01 UTC View
DIR Rooftop (DIR) +0.477s
After
-91.0 dBm -4.50 dB 0 a8 id01 LongFast 2026-05-16 07:36:01 UTC View
45

Total Receptions

1

Unique Gateways