Packet #39477487 Success

POSITION_APP packet from Da Fonz (Fonz) to !ffffffff

45
Total Receptions
1
Unique Gateways
2
Hop Count
28
Payload Bytes
Packet Information
Database ID: 39477487
Mesh Packet ID: 0xf90cad40
Used for correlation across gateways
Timestamp: 2026-05-16 07:00:05 UTC
From Node: Da Fonz (Fonz)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: lidman2 (lid2)
Channel: LongFast
RSSI: -128 dBm
SNR: -19.5 dBm
Hop Info: 2/3 hops
Start: 3, Limit: 1
Relay Node: ce
Last byte of the last hop that relayed this packet
Payload Data
Protocol: POSITION_APP
Size: 28 bytes
Decoded: Yes
Decoded Data:
Latitude:49.866342°
Longitude:-97.209549°
Altitude:234 m
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:28 bytes
Gateway:!9e7623cc
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:2 / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
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 !9e7623cc
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 48884384
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 3
POSITION_APP
enum
decoded.payload_length 28 bytes size
hop_limit 1
Remaining hops allowed
uint32
hop_start 3
Initial hop limit
uint32
hops_taken 2
Calculated: hop_start - hop_limit
derived
rx_rssi -128.0 dBm
Signal strength at gateway
int32
rx_snr -19.50 dB
Signal quality at gateway
float
rx_time 1778914803
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 206
Relay node ID
uint32
tx_after Not set uint32
timestamp 1778914805.287953
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: ~729.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !9e7623cc
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -128.0 dBm
SNR: -19.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:28 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 49.8663424, "longitude": -97.2095488, "altitude": 234, "sats_in_view": null, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9e7623cc", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 48884384, "to": 4294967295, "id": 4178357568, "rx_time": 1778914803, "rx_snr": -19.5, "rx_rssi": -128, "hop_limit": 1, "hop_start": 3, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 206, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000b91d1500000fc618ea0125ef15086a28013d6da7056ab8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 498663424, "longitude_i": -972095488, "altitude": 234, "time": 1778914799, "location_source": "LOC_MANUAL", "timestamp": 1778755437, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d0000b91d1500000fc618ea0125ef15086a28013d6da7056ab8010f
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
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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
lidman2 (lid2) Primary 0.000s
Reference
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC Current
lidman2 (lid2) +0.054s
After
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.065s
After
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.077s
After
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.088s
After
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.100s
After
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.111s
After
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.122s
After
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.133s
After
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.143s
After
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.154s
After
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.165s
After
-128.0 dBm -19.50 dB 2 ce MediumFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.183s
After
-128.0 dBm -19.50 dB 2 ce MediumFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.202s
After
-128.0 dBm -19.50 dB 2 ce MediumFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.212s
After
-128.0 dBm -19.50 dB 2 ce MediumFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.224s
After
-128.0 dBm -19.50 dB 2 ce MediumFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.235s
After
-128.0 dBm -19.50 dB 2 ce MediumFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.248s
After
-128.0 dBm -19.50 dB 2 ce MediumFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.257s
After
-128.0 dBm -19.50 dB 2 ce MediumFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.269s
After
-128.0 dBm -19.50 dB 2 ce MediumFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.280s
After
-128.0 dBm -19.50 dB 2 ce MediumFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.292s
After
-128.0 dBm -19.50 dB 2 ce MediumFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.302s
After
-128.0 dBm -19.50 dB 2 ce ShortFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.313s
After
-128.0 dBm -19.50 dB 2 ce ShortFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.324s
After
-128.0 dBm -19.50 dB 2 ce ShortFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.343s
After
-128.0 dBm -19.50 dB 2 ce ShortFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.353s
After
-128.0 dBm -19.50 dB 2 ce ShortFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.363s
After
-128.0 dBm -19.50 dB 2 ce ShortFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.374s
After
-128.0 dBm -19.50 dB 2 ce ShortFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.385s
After
-128.0 dBm -19.50 dB 2 ce ShortFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.397s
After
-128.0 dBm -19.50 dB 2 ce ShortFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.416s
After
-128.0 dBm -19.50 dB 2 ce ShortFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.434s
After
-128.0 dBm -19.50 dB 2 ce ShortFast 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.447s
After
-128.0 dBm -19.50 dB 2 ce ShortTurbo 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.459s
After
-128.0 dBm -19.50 dB 2 ce ShortTurbo 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.470s
After
-128.0 dBm -19.50 dB 2 ce ShortTurbo 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.481s
After
-128.0 dBm -19.50 dB 2 ce ShortTurbo 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.492s
After
-128.0 dBm -19.50 dB 2 ce ShortTurbo 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.502s
After
-128.0 dBm -19.50 dB 2 ce ShortTurbo 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.513s
After
-128.0 dBm -19.50 dB 2 ce ShortTurbo 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.524s
After
-128.0 dBm -19.50 dB 2 ce ShortTurbo 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.534s
After
-128.0 dBm -19.50 dB 2 ce ShortTurbo 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.545s
After
-128.0 dBm -19.50 dB 2 ce ShortTurbo 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.555s
After
-128.0 dBm -19.50 dB 2 ce ShortTurbo 2026-05-16 07:00:05 UTC View
lidman2 (lid2) +0.565s
After
-128.0 dBm -19.50 dB 2 ce LongFast 2026-05-16 07:00:05 UTC View
45

Total Receptions

1

Unique Gateways