Packet #17800700 Success

POSITION_APP packet from Tree Base (TBSE) to !ffffffff

45
Total Receptions
1
Unique Gateways
2
Hop Count
22
Payload Bytes
Packet Information
Database ID: 17800700
Mesh Packet ID: 0xa65a13e4
Used for correlation across gateways
Timestamp: 2026-03-27 09:53:58 UTC
From Node: Tree Base (TBSE)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: DIR Rooftop (DIR)
Channel: ShortFast
RSSI: -85 dBm
SNR: -0.5 dBm
Hop Info: 2/5 hops
Start: 5, Limit: 3
Relay Node: 8f
Last byte of the last hop that relayed this packet
Payload Data
Protocol: POSITION_APP
Size: 22 bytes
Decoded: Yes
Decoded Data:
Latitude:45.527859°
Longitude:-73.590374°
Precision:15 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:22 bytes
Gateway:!6985083c
Channel:ShortFast
Payload Type:POSITION_APP
Hop Count:2 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 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 !6985083c
Node ID format
channel_id ShortFast
packet MeshPacket (22 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3679576192
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 3
POSITION_APP
enum
decoded.payload_length 22 bytes size
hop_limit 3
Remaining hops allowed
uint32
hop_start 5
Initial hop limit
uint32
hops_taken 2
Calculated: hop_start - hop_limit
derived
rx_rssi -85.0 dBm
Signal strength at gateway
int32
rx_snr -0.50 dB
Signal quality at gateway
float
rx_time 1774605238
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 143
Relay node ID
uint32
tx_after Not set uint32
timestamp 1774605238.1704183
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
  • ✓ Reduced position precision: ~729.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !6985083c
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -85.0 dBm
SNR: -0.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:22 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 45.5278592, "longitude": -73.5903744, "altitude": 0, "sats_in_view": null, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!6985083c", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3679576192, "to": 4294967295, "id": 2790921188, "rx_time": 1774605238, "rx_snr": -0.5, "rx_rssi": -85, "hop_limit": 3, "hop_start": 5, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 143, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000231b15000023d4180028017800800100b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 455278592, "longitude_i": -735903744, "altitude": 0, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (22 bytes)
0d0000231b15000023d4180028017800800100b8010f
Hex Analysis:
Size:22 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
-85.0 dBm -0.50 dB 2 8f ShortFast 2026-03-27 09:53:58 UTC Current
DIR Rooftop (DIR) -0.333s
Before
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.303s
Before
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.290s
Before
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.272s
Before
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.255s
Before
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.238s
Before
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.226s
Before
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.215s
Before
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.204s
Before
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.193s
Before
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.182s
Before
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.171s
Before
-85.0 dBm -0.50 dB 2 8f MediumFast 2026-03-27 09:53:57 UTC View
DIR Rooftop (DIR) -0.161s
Before
-85.0 dBm -0.50 dB 2 8f MediumFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.150s
Before
-85.0 dBm -0.50 dB 2 8f MediumFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.139s
Before
-85.0 dBm -0.50 dB 2 8f MediumFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.128s
Before
-85.0 dBm -0.50 dB 2 8f MediumFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.116s
Before
-85.0 dBm -0.50 dB 2 8f MediumFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.104s
Before
-85.0 dBm -0.50 dB 2 8f MediumFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.092s
Before
-85.0 dBm -0.50 dB 2 8f MediumFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.080s
Before
-85.0 dBm -0.50 dB 2 8f MediumFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.068s
Before
-85.0 dBm -0.50 dB 2 8f MediumFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.056s
Before
-85.0 dBm -0.50 dB 2 8f MediumFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.044s
Before
-85.0 dBm -0.50 dB 2 8f ShortFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.032s
Before
-85.0 dBm -0.50 dB 2 8f ShortFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.022s
Before
-85.0 dBm -0.50 dB 2 8f ShortFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) -0.011s
Before
-85.0 dBm -0.50 dB 2 8f ShortFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.011s
After
-85.0 dBm -0.50 dB 2 8f ShortFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.022s
After
-85.0 dBm -0.50 dB 2 8f ShortFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.033s
After
-85.0 dBm -0.50 dB 2 8f ShortFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.043s
After
-85.0 dBm -0.50 dB 2 8f ShortFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.054s
After
-85.0 dBm -0.50 dB 2 8f ShortFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.066s
After
-85.0 dBm -0.50 dB 2 8f ShortFast 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.078s
After
-85.0 dBm -0.50 dB 2 8f ShortTurbo 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.100s
After
-85.0 dBm -0.50 dB 2 8f ShortTurbo 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.112s
After
-85.0 dBm -0.50 dB 2 8f ShortTurbo 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.124s
After
-85.0 dBm -0.50 dB 2 8f ShortTurbo 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.136s
After
-85.0 dBm -0.50 dB 2 8f ShortTurbo 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.147s
After
-85.0 dBm -0.50 dB 2 8f ShortTurbo 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.158s
After
-85.0 dBm -0.50 dB 2 8f ShortTurbo 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.169s
After
-85.0 dBm -0.50 dB 2 8f ShortTurbo 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.180s
After
-85.0 dBm -0.50 dB 2 8f ShortTurbo 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.191s
After
-85.0 dBm -0.50 dB 2 8f ShortTurbo 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.202s
After
-85.0 dBm -0.50 dB 2 8f ShortTurbo 2026-03-27 09:53:58 UTC View
DIR Rooftop (DIR) +0.212s
After
-85.0 dBm -0.50 dB 2 8f LongFast 2026-03-27 09:53:58 UTC View
45

Total Receptions

1

Unique Gateways