Pakketwijziging 2023-1 Nationaal Frequentieplan 2014

Reactie

Vraag1

Motivation:
1.) In recent years, the amateur radio service has already faced a significant increase in man-made noise on the HF bands (source: https://ieeexplore.ieee.org/document/8396864.
The 70 cm (430 - 440 MHz) band is characterised by technically advanced experiments and public scientific research, in which among other things with use of low power, bridging large distances, with correspondingly weak receive signals comparable to radio astronomy, for example. It is therefore essential to use the frequencies of the amateur radio service to be kept as free as possible from man-made noise and interference by SRDs.
2.) The frequency range of 430 - 432 MHz and 438 - 440 MHz is used both in the Netherlands and in Germany
as the entry frequency for licensed unmanned automatic repeater stations. These stations are restricted in their operation, and may lead to unwanted relaying of signals from SRDs.
3.) Experiences with current shared use between 433 and 435 MHz make it plausible that the packet change will lead to further problems between (users of) SRDs and the amateurradio service. (Source:
https://www.rdi.nl/onderwerpen/radiozendamateurs/documenten/publicaties/2020/06/22/het-frequency range-between-433-and-435-megahertz)
4.) The frequency area of (435-438 MHz) has been internationally allocated to satellite communications (source: https://www.iaru.org/wp-content/uploads/2020/01/Amateur-Services-Spectrum-2020_.pdf) , and should be kept free from SRDs for this service. Disabling or damaging causing damage to these frequencies violates international agreements. Other signals in this area are detrimental to reception of the weak signals from space.