Packet #17810741 Success

POSITION_APP packet from Da Fonz (Fonz) to !ffffffff

47
Total Receptions
3
Unique Gateways
2
Hop Count
28
Payload Bytes
Packet Information
Database ID: 17810741
Mesh Packet ID: 0x2c08a68f
Used for correlation across gateways
Timestamp: 2026-03-27 10:14:04 UTC
From Node: Da Fonz (Fonz)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Mechanicus Dominus (M4)
Channel: LongFast
RSSI: -104 dBm
SNR: -18.25 dBm
Hop Info: 2/3 hops
Start: 3, Limit: 1
Relay Node: 75
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:!6984d8b8
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 !6984d8b8
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 -104.0 dBm
Signal strength at gateway
int32
rx_snr -18.25 dB
Signal quality at gateway
float
rx_time 1774606442
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 117
Relay node ID
uint32
tx_after Not set uint32
timestamp 1774606444.7853205
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: !6984d8b8
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -104.0 dBm
SNR: -18.25 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": "!6984d8b8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 48884384, "to": 4294967295, "id": 738764431, "rx_time": 1774606442, "rx_snr": -18.25, "rx_rssi": -104, "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": 117, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000b91d1500000fc618ea01256658c66928013d03d3bf69b8010f", "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": 1774606438, "location_source": "LOC_MANUAL", "timestamp": 1774179075, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (28 bytes)
0d0000b91d1500000fc618ea01256658c66928013d03d3bf69b8010f
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
Mechanicus Dominus (M4) Primary 0.000s
Reference
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC Current
Mechanicus Dominus (M4) -0.500s
Before
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.489s
Before
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.477s
Before
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.465s
Before
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.453s
Before
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.442s
Before
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.431s
Before
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.420s
Before
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.409s
Before
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.399s
Before
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.388s
Before
-104.0 dBm -18.25 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.377s
Before
-104.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.366s
Before
-104.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.354s
Before
-104.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.342s
Before
-104.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.329s
Before
-104.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.317s
Before
-104.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.305s
Before
-104.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.293s
Before
-104.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.281s
Before
-104.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.269s
Before
-104.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.258s
Before
-104.0 dBm -18.25 dB 2 75 MediumFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.247s
Before
-104.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.236s
Before
-104.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.225s
Before
-104.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.214s
Before
-104.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.204s
Before
-104.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.193s
Before
-104.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.182s
Before
-104.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.170s
Before
-104.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.158s
Before
-104.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.146s
Before
-104.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.133s
Before
-104.0 dBm -18.25 dB 2 75 ShortFast 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.121s
Before
-104.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.109s
Before
-104.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.098s
Before
-104.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.086s
Before
-104.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.075s
Before
-104.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.064s
Before
-104.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.054s
Before
-104.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.043s
Before
-104.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.032s
Before
-104.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.022s
Before
-104.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 10:14:04 UTC View
Mechanicus Dominus (M4) -0.011s
Before
-104.0 dBm -18.25 dB 2 75 ShortTurbo 2026-03-27 10:14:04 UTC View
Mechanicus Cadia (M3) +0.036s
After
-128.0 dBm -18.00 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
Mechanicus Alpha (M1) +0.048s
After
-110.0 dBm -4.50 dB 2 75 LongFast 2026-03-27 10:14:04 UTC View
47

Total Receptions

3

Unique Gateways