Packet #17959728 Success

POSITION_APP packet from VA7XRJ (7XRJ) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
23
Payload Bytes
Packet Information
Database ID: 17959728
Mesh Packet ID: 0x2285bce9
Used for correlation across gateways
Timestamp: 2026-03-27 18:14:01 UTC
From Node: VA7XRJ (7XRJ)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: VE7DCX Repeater (7DCX)
Channel: LongFast
RSSI: -44 dBm
SNR: 6.25 dBm
Hop Info: 0/7 hops
Start: 7, Limit: 7
Relay Node: f4 7XRJ
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: 23 bytes
Decoded: Yes
Decoded Data:
Latitude:49.623859°
Longitude:-115.946291°
Altitude:949 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:23 bytes
Gateway:!9e779694
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:Unknown / 7
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 !9e779694
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (23 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2658511604
Source node ID
uint32
to 4294967295 (Broadcast)
Visible to all nodes
uint32
decoded.portnum 3
POSITION_APP
enum
decoded.payload_length 23 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 -44.0 dBm
Signal strength at gateway
int32
rx_snr 6.25 dB
Signal quality at gateway
float
rx_time 1774635240
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 244
Relay node ID
uint32
tx_after Not set uint32
timestamp 1774635241.231419
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: !9e779694
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -44.0 dBm
SNR: 6.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:23 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 49.6238592, "longitude": -115.9462912, "altitude": 949, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9e779694", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2658511604, "to": 4294967295, "id": 579189993, "rx_time": 1774635240, "rx_snr": 6.25, "rx_rssi": -44, "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": 244, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000941d150000e4ba18b50728017800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 496238592, "longitude_i": -1159462912, "altitude": 949, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (23 bytes)
0d0000941d150000e4ba18b50728017800800100b8010d
Hex Analysis:
Size:23 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
VE7DCX Repeater (7DCX) Primary 0.000s
Reference
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC Current
VE7DCX Repeater (7DCX) -0.079s
Before
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) -0.054s
Before
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) -0.043s
Before
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) -0.027s
Before
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) -0.009s
Before
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.017s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.030s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.042s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.054s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.065s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.077s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ MediumFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.089s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ MediumFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.101s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ MediumFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.112s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ MediumFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.123s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ MediumFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.134s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ MediumFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.145s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ MediumFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.156s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ MediumFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.167s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ MediumFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.178s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ MediumFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.189s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ MediumFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.201s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.214s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.226s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.239s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.251s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.263s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.275s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.287s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.298s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.309s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.320s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortFast 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.331s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortTurbo 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.342s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortTurbo 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.353s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortTurbo 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.364s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortTurbo 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.375s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortTurbo 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.387s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortTurbo 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.399s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortTurbo 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.413s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortTurbo 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.425s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortTurbo 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.441s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortTurbo 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.453s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ ShortTurbo 2026-03-27 18:14:01 UTC View
VE7DCX Repeater (7DCX) +0.465s
After
-44.0 dBm 6.25 dB 0 f4 7XRJ LongFast 2026-03-27 18:14:01 UTC View
45

Total Receptions

1

Unique Gateways