HFCC A24 CONFERENCE
15-19 January 2024
Kuala Lumpur, Malaysia
eHFBC Platform
Online Tools for HF services
Hakim Ebdelli
Broadcasting Services Division
ITU Radiocommunication Bureau
www.itu.int
Content
▪ Part I
▪ eHFBC Platform - News & Resources
▪ HFBC Publications - Coverage And Compatibility Analysis
▪ Requirements Tools
▪ New Notice File
▪ Open/Modify Existing Notice File
▪ Notice File Validation
▪ Query tool
▪ Reference Data
▪ Antenna Module
▪ Part II: Case studies
eHFBC platform
https://www.itu.int/ITU-R/eTerrestrial/eBroadcasting
•
•
Public Access
(Without login)
Private Access ( a
username is
needed)
To get a TIES username :
www.itu.int/ties
eHFBC platform – News & Resources
https://www.itu.int/ITU-R/eTerrestrial/eBroadcasting/eHFBC#/about
HFBC Publications – Calculations
For each publication, 3 calculations:
✓ Season A: April, July, October
✓ Season B: November, January (Next Year), March (Next Year)
HFBC Circular Letter: CR 501
HFBC Publications – Results
Analysis tools
HFBC Publications – Results
HFBC Publications – Results
2 view options
HFBC Publications – Results
HFBC Publications – Results : CIRAF Points Coverage Analysis (BCR, FS, PWR)
• BCR: Basic Circuit Reliability(%), Probability
that a specified performance (S/N) is achieved.
• FS: Field Strength (dBµV/m)
• PWR: Received Power (dBm)
HFBC Publications – Results : Antenna Pattern (H)
HFBC Publications – Results : CIRAF Targets
HFBC Publications – Results : CIRAF Points Interference Analysis (OCR, S/I, Interference)
• OCR: Overall Circuit Reliability(%), Probability
that a specified performance (S/I) is achieved
at a single frequency.
• S/I: Signal to Interference ratio(dB)
• Interference: CIRAF points where S/I < S/I min
HFBC Publications – Results : Interferers
HFBC Publications – Results :Victims
HFBC Publications – Results : Requirement Details
HFBC Publications – Results : BSR/TSC
BSR: The value of BCR
exceeded by 50% percentage
of the test points (0-10)
TSC: The value of OCR/BCR
exceeded by 50% percentage
of the test points (0-10)
HFBC Publications – Results : Useful features
Requirements – New Notice File
In Red :
Mandatory
Fields
File Format
Requirements – Open/Edit Notice File
Requirements – Validate Notice File (s)
Requirements – Query
Reference Data
Send update request to the BR when old data
(brmail@itu.int or brbcd@itu.int)
New eHFBC Software – Antennas
Antenna parameters
New features in progress
❑ Finish Phase I (End of February):
❑ Antennas Patterns/Gain Display/Edit
❑ List of interferers at CIRAF test points (Interference)
❑ More maps: Integration into Reference tables and New/Open notice files
❑ Validation report in grid view for streamlined error fixes
❑ Internal modules mainly for managing the reference tables
❑ Support of more file formats(SGML, HFCC )
❑ Customized legends…
❑ Phase II:
❑ On-the-fly calculations
❑ Calculations using input files
❑ Support of alternative frequencies
❑ Better user experience / Performance Enhancements
Case Studies
1.
Coverage Analysis
2.
Interference/Compatibility Analysis
3.
New Notice File
4.
Open/Modify Existing File
5.
Reference tables
Case Studies – Coverage Analysis
1.
Calculation:
❑ Schedule: B23S2
❑ Month: March 2024
2.
Requirement:
❑ Notifying Org.: BOT
❑ Terrakey: 36904
❑ Time: 21:30-22:00
3.
Analyze the Coverage :
BCR/FS/PWR at hour 21
BCR
Case Studies – Interference/Compatibility Analysis
1.
Calculation:
❑ Schedule: B23S2
❑ Month: March 2024
2.
Requirement:
❑ Notifying Org.: SNG
❑ Terrakey: 37486
❑ Time: 10:00-12:00
3.
Analyse Interference at hour 10
Interference
Case Studies – Interference/Compatibility Analysis
Interferers
Victims
Case Studies – New Notice File: A Notice File for Schedule A24T2
Mandatory Fields
Optional/Recommended Fields
Season
A24
Broadcaster Code
R
Date sent
Automatic
Frequency Manager Organ. Code
R
Notifying Organization
OMA
Language
O
Adm
OMA
Alternate. Frequency 1
O
Site code
SLA
Alternate. Frequency 2
O
Antenna code
151
Alternate. Frequency 3
O
Antenna Slew Angle
10
Notes
O
Azimuth
146
Frequency (Khz)
11735
Antenna design frequency (kHz)
11735
Power (kW)
250
Modulation
D
Date (Start – Stop)
2024 Mar 31 - 2024 Oct 27
Time UTC (Start – Stop)
17:00-19:00
Days of operation
1, 2,3, 7
Target Service Area (CIRAF)
48
Case Studies – Open/Modify Existing File
Case Studies – Identify old reference data
HFCC A24 CONFERENCE
15-19 January 2024
Kuala Lumpur, Malaysia
Thank you!
ITU – Radiocommunication Bureau
Questions/Suggestions to:
brbcd@itu.int
brmail@itu.int
www.itu.int