Packet #18022746 Success

POSITION_APP packet from Kaveman (KMEK) to !ffffffff

47
Total Receptions
3
Unique Gateways
0
Hop Count
36
Payload Bytes
Packet Information
Database ID: 18022746
Mesh Packet ID: 0x171c36c1
Used for correlation across gateways
Timestamp: 2026-03-27 21:54:42 UTC
From Node: Kaveman (KMEK)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Mechanicus Dominus (M4)
Channel: ShortFast
RSSI: -23 dBm
SNR: 6.75 dBm
Hop Info: 0/7 hops
Start: 7, Limit: 7
Relay Node: 70 KMEK
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: 36 bytes
Decoded: Yes
Decoded Data:
Latitude:49.922867°
Longitude:-97.149747°
Altitude:28 m
Satellites:5
Precision:18 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:!6984d8b8
Channel:ShortFast
Payload Type:POSITION_APP
Hop Count:Unknown / 7
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 !6984d8b8
Node ID format
channel_id ShortFast
packet MeshPacket (36 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 23322480
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 7
Remaining hops allowed
uint32
hop_start 7
Initial hop limit
uint32
hops_taken 0
Calculated: hop_start - hop_limit
derived
rx_rssi -23.0 dBm
Signal strength at gateway
int32
rx_snr 6.75 dB
Signal quality at gateway
float
rx_time 1774648477
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 112
Relay node ID
uint32
tx_after Not set uint32
timestamp 1774648482.1395125
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !6984d8b8
Position Precision: 18 bits (~91.0m accuracy)
Position precision meters: 91.0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -23.0 dBm
SNR: 6.75 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": 49.9228672, "longitude": -97.1497472, "altitude": 28, "sats_in_view": 5, "precision_bits": 18 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!6984d8b8", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 23322480, "to": 4294967295, "id": 387724993, "rx_time": 1774648477, "rx_snr": 6.75, "rx_rssi": -23, "hop_limit": 7, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 112, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00a0c11d15002018c6181c259cfcc669280258ed0378008001c0848d10980105b80112", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 499228672, "longitude_i": -971497472, "altitude": 28, "time": 1774648476, "location_source": "LOC_INTERNAL", "PDOP": 493, "ground_speed": 0, "ground_track": 33768000, "sats_in_view": 5, "precision_bits": 18, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (36 bytes)
0d00a0c11d15002018c6181c259cfcc669280258ed0378008001c0848d10980105b80112
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
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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
Mechanicus Dominus (M4) Primary 0.000s
Reference
-23.0 dBm 6.75 dB 0 70 KMEK ShortFast 2026-03-27 21:54:42 UTC Current
Mechanicus Dominus (M4) -3.960s
Before
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:38 UTC View
Mechanicus Dominus (M4) -2.701s
Before
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:39 UTC View
Mechanicus Dominus (M4) -2.625s
Before
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:39 UTC View
Mechanicus Dominus (M4) -2.605s
Before
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:39 UTC View
Mechanicus Dominus (M4) -2.570s
Before
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:39 UTC View
Mechanicus Dominus (M4) -2.523s
Before
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:39 UTC View
Mechanicus Dominus (M4) -2.498s
Before
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:39 UTC View
Mechanicus Dominus (M4) -2.474s
Before
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:39 UTC View
Mechanicus Dominus (M4) -2.420s
Before
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:39 UTC View
Mechanicus Dominus (M4) -1.266s
Before
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:40 UTC View
Mechanicus Dominus (M4) -1.222s
Before
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:40 UTC View
Mechanicus Dominus (M4) -1.199s
Before
-23.0 dBm 6.75 dB 0 70 KMEK MediumFast 2026-03-27 21:54:40 UTC View
Mechanicus Dominus (M4) -1.159s
Before
-23.0 dBm 6.75 dB 0 70 KMEK MediumFast 2026-03-27 21:54:40 UTC View
Mechanicus Dominus (M4) -1.119s
Before
-23.0 dBm 6.75 dB 0 70 KMEK MediumFast 2026-03-27 21:54:41 UTC View
Mechanicus Dominus (M4) -1.061s
Before
-23.0 dBm 6.75 dB 0 70 KMEK MediumFast 2026-03-27 21:54:41 UTC View
Mechanicus Dominus (M4) -1.019s
Before
-23.0 dBm 6.75 dB 0 70 KMEK MediumFast 2026-03-27 21:54:41 UTC View
Mechanicus Dominus (M4) -0.988s
Before
-23.0 dBm 6.75 dB 0 70 KMEK MediumFast 2026-03-27 21:54:41 UTC View
Mechanicus Dominus (M4) -0.943s
Before
-23.0 dBm 6.75 dB 0 70 KMEK MediumFast 2026-03-27 21:54:41 UTC View
Mechanicus Dominus (M4) -0.192s
Before
-23.0 dBm 6.75 dB 0 70 KMEK MediumFast 2026-03-27 21:54:41 UTC View
Mechanicus Dominus (M4) -0.146s
Before
-23.0 dBm 6.75 dB 0 70 KMEK MediumFast 2026-03-27 21:54:41 UTC View
Mechanicus Dominus (M4) -0.113s
Before
-23.0 dBm 6.75 dB 0 70 KMEK MediumFast 2026-03-27 21:54:42 UTC View
Mechanicus Dominus (M4) -0.091s
Before
-23.0 dBm 6.75 dB 0 70 KMEK MediumFast 2026-03-27 21:54:42 UTC View
Mechanicus Dominus (M4) -0.059s
Before
-23.0 dBm 6.75 dB 0 70 KMEK ShortFast 2026-03-27 21:54:42 UTC View
Mechanicus Dominus (M4) -0.027s
Before
-23.0 dBm 6.75 dB 0 70 KMEK ShortFast 2026-03-27 21:54:42 UTC View
Mechanicus Dominus (M4) +0.034s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortFast 2026-03-27 21:54:42 UTC View
Mechanicus Dominus (M4) +0.062s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortFast 2026-03-27 21:54:42 UTC View
Mechanicus Dominus (M4) +0.086s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortFast 2026-03-27 21:54:42 UTC View
Mechanicus Dominus (M4) +0.112s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortFast 2026-03-27 21:54:42 UTC View
Mechanicus Dominus (M4) +1.083s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortFast 2026-03-27 21:54:43 UTC View
Mechanicus Dominus (M4) +1.115s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortFast 2026-03-27 21:54:43 UTC View
Mechanicus Dominus (M4) +1.148s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortFast 2026-03-27 21:54:43 UTC View
Mechanicus Dominus (M4) +1.172s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortFast 2026-03-27 21:54:43 UTC View
Mechanicus Dominus (M4) +1.196s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortTurbo 2026-03-27 21:54:43 UTC View
Mechanicus Dominus (M4) +1.247s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortTurbo 2026-03-27 21:54:43 UTC View
Mechanicus Dominus (M4) +2.241s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortTurbo 2026-03-27 21:54:44 UTC View
Mechanicus Dominus (M4) +2.269s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortTurbo 2026-03-27 21:54:44 UTC View
Mechanicus Dominus (M4) +2.286s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortTurbo 2026-03-27 21:54:44 UTC View
Mechanicus Dominus (M4) +2.321s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortTurbo 2026-03-27 21:54:44 UTC View
Mechanicus Dominus (M4) +2.340s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortTurbo 2026-03-27 21:54:44 UTC View
Mechanicus Dominus (M4) +2.359s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortTurbo 2026-03-27 21:54:44 UTC View
Mechanicus Dominus (M4) +2.381s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortTurbo 2026-03-27 21:54:44 UTC View
Mechanicus Dominus (M4) +2.437s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortTurbo 2026-03-27 21:54:44 UTC View
Mechanicus Dominus (M4) +2.456s
After
-23.0 dBm 6.75 dB 0 70 KMEK ShortTurbo 2026-03-27 21:54:44 UTC View
Mechanicus Dominus (M4) +2.480s
After
-23.0 dBm 6.75 dB 0 70 KMEK LongFast 2026-03-27 21:54:44 UTC View
Mechanicus Alpha (M1) +2.501s
After
-45.0 dBm 7.00 dB 0 70 KMEK LongFast 2026-03-27 21:54:44 UTC View
Mechanicus Cadia (M3) +2.528s
After
-39.0 dBm 6.25 dB 0 70 KMEK LongFast 2026-03-27 21:54:44 UTC View
47

Total Receptions

3

Unique Gateways