Swissmade
NEWS
09/11/2021
MEASUREMENT

DASY8 Module HAC2019 (ANSI C63.19-2019)

SPEAG has released DASY8 Module HAC2019. The new module provides a guided workflow that demonstrates the compliance of any wireless device with the latest Hearing Aid Compatibility standard ANSI C63.19-2019 and the latest Federal Communication Commission requirements. Module HAC2019 is also available for DASY6.

Demonstrating Hearing Aid Compatibility (HAC) is important for warranting the electromagnetic and operational compatibility of hearing aids and wireless devices. In February 2021, the Federal Communication Commission (FCC) announced the adoption of the 2019 edition of ANSI C63.19, the “American National Standard Methods of Measurement Compatibility Between Wireless Communications Devices and Hearing Aids,” which became effective June 4, 2021. The FCC is giving manufacturers a two-year transition period (i.e., until June 4, 2023) to adopt the requirements of the updated ANSI C63.19-2011 standard. It has also extended the volume control deadline to match this transition period. Beginning June 5, 2023, only test reports that comply with ANSI C63.2019 will be accepted.

Following SPEAG’s tradition of staying ahead of requirements, we started early with the development of Module HAC2019 for DASY8/6 users. This is a completely new software solution based on SPEAG’s latest graphical user interface technology that guides users through the compliance workflow by using specific Jupyter Notebooks. The DASY8/6 system is interfaced via a dedicated application programming interface.

During development, we have been meticulous in ensuring that we reuse as much as possible of the previous HAC hardware in order to save resources and costs for our customers. The only element that has been replaced is the audio interference analyzer (AIA), which has been superseded by the modulation and audio interference analyzer (MAIA) to evaluate the modulation interference factor (MIF).

DASY8/6 Module HAC2019 consists of four Jupyter Notebooks that represent the different steps of the compliance workflow:

  • MIF measurements with MAIA
  • Simplified verification of the radiofrequency (RF) test setup using RF emission calibration dipoles
  • Evaluation of the wireless device RF interference potential by determining the RF audio interference level (RFail)
  • Measurement of the baseband (audio frequency) magnetic T-Coil (Tele-Coil) signal from a wireless device.

The workflow can easily be implemented, as shown in this video:

MIF Measurements with MAIA

The MAIA allows verification of the MIF values used to calculate the RFail. The MAIA can be operated over the air interface using the built-in ultra-broadband planar log spiral antenna (supported frequency range: 698–6000 MHz) or in conducted mode using the coaxial SMA 50 Ω connector (supported frequency range: 300–6000 MHz).

MIF

Figure 1: MIF Measurement of a 5G new radio frequency range 1 frequency division duplex signal

RF Test Setup Verification

A dedicated Notebook has been developed for verifying the RF interference measurement setup. The user can select and optimize the measurement configuration in a list of predefined templates. Peak values are automatically detected for easy comparison with the measurement targets.

SystemCheck

Figure 2: Interpolated E-field Distribution of a CD2450V3 Dipole

RF Audio Interface Level Determination

In Module HAC2019, the RFail is assessed using the (preferred) indirect test procedure described in ANSI C63.19-2019. A 50x50 mm region centered on the speaker location is scanned and the root mean square (RMS) electric field values are recorded at each point. Once the scan is completed, the RFail is obtained by adding the MIF value to the average steady RMS field strength averaged over the measurement area.

RF

Figure 3: Interpolated E-field distribution of a wireless device after MIF scaling

Baseband Magnetic T-Coil Signal

The Jupyter Notebook developed for baseband magnetic T-Coil testing guides the users through the measurement steps described in the ANSI C63.19-2019:

  • Validation of the measurement equipment using a telephone magnetic field simulator (TMFS) or a Helmholtz coil
  • Determination of the wireless device drive levels for each audio signal
  • Measurement of the desired magnetic field with a voice-like signal (desired audio band magnetic (ABM) signal)
  • Measurement of the frequency response at the maximum location of the desired ABM signal
  • Measurement of the undesired broadband audio magnetic signal (undesired ABM signal)

The T-Coil coupling qualifying strengths, including determination of the primary and secondary groups, as well the magnetic field frequency response are computed by the post-processor and are available for visualization and reporting.

Groups2

Figure 4: Evaluation of Primary and Secondary Groups according to ANSI C63.19-2019

The software installer will be available on November 15th.

For further information, please contact us at info@speag.swiss or any of our sales channels.

 

CORPORATE

08/11/2012

Contact
info@speag.swiss

 

Parents back to school: kids take over

On the 2012 National Future Day, four outstanding girls – Anushka, Chimey, Liza, and Sia, and four exceptional boys – Jechiel, Kilian, Moritz, and Arun joined our research and development teams at IT'IS, SPEAG and ZMT for one day.

 
MEASUREMENT

05/09/2012

Contact
info@speag.swiss

 

iSAR V2.6 Software Release

SPEAG is pleased to announce a new software release iSAR V2.6 that further improves repeatability, absolute accuracy and user friendliness of iSAR Flat, Head and Quad. In the next release, we also plan to include novel features that we are currently developing for cSAR3D.

 
SIMULATION

09/08/2012

Contact
semx-support@speag.swiss

 

SEMCAD X APS Raffle Winner

During the IEEE APS 2012 exhibition, a NVIDIA Tesla C1060 card was given away in a raffle at the SEMCAD X User Meeting.

 
MEASUREMENT

07/08/2012

Contact
info@speag.swiss

 

DASY52.8.2 and SEMCAD X V14.6.6 Software Release

SPEAG is pleased to announce the release of DASY52.8.2 (969) and SEMCAD-X V14.6.6 (6824). It took us slightly longer than promised for this release, however we not only removed the reported bugs but also added new features which will ease the daily usage of our DASY system as well as provide even better compatibility with current and upcoming compliance standards. In particular, we support our new MIF box, support the creation of SAR compliance reports and we improved the interface to the CMW500. In addition, the DAK team added two new videos to our webpage.

 
MEASUREMENT

02/08/2012

Contact
info@speag.swiss

 

New Phantom Products

In response to customer requests for more versatile phantoms, SPEAG introduces several new whole-body and hand phantoms.

 
CORPORATE

24/07/2012

Contact
info@speag.swiss

 

SPEAG sponsors "IT'IS for Health" with CHF 200 000

SPEAG Executive Board congratulates Niels Kuster, SPEAG Co-Founder and President of the Board of Directors, on receiving the distinguished d'Arsonval Award, the highest scientific honor of the Bioelectromagnetics Society.

 
MEASUREMENT

18/07/2012

Contact
info@speag.swiss

 

DAK Software Release

We are pleased to announce the latest DAK Software which is more flexible and versatile than the previous version.

 
SIMULATION

12/07/2012

Contact
semx-support@speag.swiss

 

SEMCAD X v14.8.1 Update Release

The SEMCAD X Team is pleased to announce the release of SEMCAD X v14.8.1, an update of SEMCAD X Aletsch v14.8.

 
MEASUREMENT

11/07/2012

Contact
info@speag.swiss

 

France Enforces SAR Requirements in Limbs

Recent information has been issued by the French government that wireless devices must comply with SAR limits in the limbs and hands. DASY52 is fully compatible with all testing requirements and international measurement standards. SAR phantoms and tissue equivalent liquids are available from SPEAG.

 
SIMULATION

26/06/2012

Contact
semx-support@speag.swiss

 

SEMCAD X Student Research Award 2011 Winners

Schmid & Partner Engineering AG (SPEAG) is very pleased to announce the winners of SEMCAD X Student Research Award 2011.

 
Page 24 of 31
 
 
Latest News