Packet #18522892 Success

POSITION_APP packet from Z1-SVN_53 (VN53) to SRVD (0560)

9
Total Receptions
9
Unique Gateways
2
Hop Count
23
Payload Bytes
Packet Information
Database ID: 18522892
Mesh Packet ID: 0xe7245395
Used for correlation across gateways
Timestamp: 2026-06-13 02:44:57 UTC
From Node: Z1-SVN_53 (VN53)
To Node: SRVD (0560)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Aster-02 (AST2)
Channel: MediumFast
RSSI: -88 dBm
SNR: 0.5 dBm
Hop Info: 2/7 hops
Start: 7, Limit: 5
Payload Data
Protocol: POSITION_APP
Size: 23 bytes
Decoded: Yes
Decoded Data:
Latitude:55.725261°
Longitude:37.466931°
Altitude:180 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:23 bytes
Gateway:!b2a78a88
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:2 / 7
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 4 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !b2a78a88
Node ID format
channel_id MediumFast
packet MeshPacket (23 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1770247056
Source node ID 		uint32
to 1770362208
Target node ID 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 23 bytes size
hop_limit 5
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -88.0 dBm
Signal strength at gateway 		int32
rx_snr 0.50 dB
Signal quality at gateway 		float
rx_time 1781307896
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack True
Acknowledgment 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 31
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1781307897.0237656
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Acknowledgment requested
  • ✓ Targeted to specific node
  • ✓ Custom channel: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~729.0m accuracy
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Want ack: True
Gateway ID: !b2a78a88
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -88.0 dBm
SNR: 0.50 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": 55.7252608, "longitude": 37.4669312, "altitude": 180, "sats_in_view": null, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b2a78a88", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1770247056, "to": 1770362208, "id": 3877917589, "rx_time": 1781307896, "rx_snr": 0.5, "rx_rssi": -88, "hop_limit": 5, "hop_start": 7, "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 31, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00003721150000551618b40125f6992c6a2801b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 557252608, "longitude_i": 374669312, "altitude": 180, "time": 1781307894, "location_source": "LOC_MANUAL", "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (23 bytes)
0d00003721150000551618b40125f6992c6a2801b8010f
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

Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Channel Timestamp Actions
Aster-02 (AST2) Primary 0.000s
Reference 		-88.0 dBm 0.50 dB 2 MediumFast 2026-06-13 02:44:57 Current
SYSXX YGW8 (SXY8) +1.050s
After 		-91.0 dBm Unknown 3 MediumFast 2026-06-13 02:44:58 View
Meshtastic b090 (b090) +1.381s
After 		-103.0 dBm 6.50 dB 3 MediumFast 2026-06-13 02:44:58 View
Tsaritsyno_KB_U_868 (KBU8) +2.828s
After 		-103.0 dBm 3.25 dB 6 MediumFast 2026-06-13 02:44:59 View
ZA_MKAD_22_868_1 (8681) +2.900s
After 		-138.0 dBm -14.00 dB 3 MediumFast 2026-06-13 02:44:59 View
NODE_SOLAR_868 (8682) +3.137s
After 		Unknown Unknown 4 MediumFast 2026-06-13 02:45:00 View
E220-900M30S LLCC68 (LC68) +3.466s
After 		-119.0 dBm -7.00 dB 4 MediumFast 2026-06-13 02:45:00 View
Zoͦmͫвⷡiͥeͤ [GW8] (🧟) +3.572s
After 		-101.0 dBm -1.25 dB 4 MediumFast 2026-06-13 02:45:00 View
Tsaritsyno_KB_V_868 (KBV8) +4.235s
After 		-105.0 dBm -2.25 dB 6 MediumFast 2026-06-13 02:45:01 View
9

Total Receptions

9

Unique Gateways