DD ready

… is the mark of quality for future-proof
radio systems that already meet tomorrow‘s
standards today…

… and the pledge from the Sennheiser brand to
deliver premium service and first-class advice
for all wireless audio transmission applications
within the current legal provisions.

Access to radio frequencies for wireless microphones

Digital Dividend in Norway

The last 10 years has seen the Professional Audio industry in Europe go through some very difficult challenges, specifically in the area of spectrum access. These changes have put a lot of pressure and uncertainty into the market, and unfortunately have also occurred at a time when so many other factors have aligned, resulting in trading conditions being even more challenging than normal.

The Norwegian Government has announced that they intend to clear the 700 MHz band by 1st November 2019, trigger a so-called Digital Dividend 2 in the country. The Digital Dividend was introduced in several different stages: Stage I (2013) included frequency 790-862 MHz and 838 – 862 MHz; stage II (2019) includes mainly frequency 694 – 790 MHz. In general, virtually all wireless microphone applications are affected by these changes.

The legal position in Norway

The countries of the European Union have agreed on a general harmonization of frequency use – to the benefit of unified communication standards for the technologies in question.

A national authority is responsible for coordinating the frequency range and setting up regulations for efficient, interruption-free use in each country. In Norway, this is Norwegian Communications Authority ( Nkom )

Norwegian Communications Authority
Nasjonal kommunikasjons-myndighet

Visiting address
Nygård 1, Lillesand

Postal address
Postbox 93
4791 Lillesand
Phone: +47 22 82 46 00

Emergency response
Fax: +47 22 82 46 40
[email protected]

Distinguishing between user groups

The Norwegian Television (NTV) granted the right to use the frequency band 470 - 790 MHz to establish a public electronic communication network based on digital TV (DTT) technology. This is a primary service in this band. In the freeboard regulations section 14 first paragraph/letter b Nkom has granted permission to use wireless microphones as secondary service in the frequency band 510 - 790 MHz with maximum permitted radiated power of 50 mW e.r.p.
Nkom thus splits radio technology applications for audio transmission into two user groups: Professional applications with protection areas appropriate to their level of importance and those with low protection needs.

Although wireless microphones and in-ear systems are crucially important in producing large live events and radio formats, they are always considered secondary to television signals and therefore handled as subordinate. That means that the unused gaps in the frequency spectrum between the TV channels are used for transmission.

Professional users have the option to use the available frequencies in the UHF range of 510–694 MHz. Available frequencies are displayed through the Internet service finnsenderen.no offered by the National Communications Authority. Anyone using microphones and IEM in frequency range of 510 to 694 MHz are therefore professional users.

The overview shows the UHF frequency ranges for professional users that can be used with Sennheiser wireless technology.

Frequencies for professional productions

In the Fribruksforskriften, the National Communications Authority (Nkom) has granted permission to use wireless microphones as a secondary service in the 510 MHz - 790 MHz frequency band. As of November 1st, 2019 the upper frequency level will be established at 694 MHz. The conditions for using wireless microphones in this frequency band are therefore that this use does not interfere with NTV's legal use of the band.

It is important to note that the list of available frequency resources provided in Norway by finnsenderen.no is only a guide, and that it is the user's own responsibility to avoid the use of wireless microphones interfering with television broadcasts.

Sennheiser offer for DD2-affected customers

Nkom emphasizes that the purchase of equipment for wireless microphones based on available frequencies at a given time in a given geographical area occurs at the buyer's own risk. The buyer is not entitled to compensation from the state if the frequencies are no longer vacant and that the equipment can no longer be used in this geographical area.

Sennheiser has always been committed to helping our customers get the best possible compensation as a result of the unintended consequences of frequency unavailability. Given the ongoing spectrum changes in Norway, Sennheiser offers a wide range of services to mitigate the effects of 700 MHz band clearance. There are two offers:

1.Frequency change for existing Sennheiser equipment
2.Buy-back campaign for Sennheiser and 3rd party wireless equipment
Read more at DD2CamapignNorwayA4V2_Screen.pdf