The present document applies to Complementary Ground Components (CGC) operating as part of a satellite network.
The present document covers two types of CGC:
• Conventional CGC:
- Clauses 4 and 5 according to ETSI EN 301 908-18 [16] for W_CDMA
- Clauses 8 and 9 according to ETSI EN 301 908-14 [10] for E-UTRA
• Aeronautical CGC
These Complementary Ground Components (CGC) transmit only to the User Equipment/ Aeronautical Terminal or
transmit and receive to/from the User Equipment/ Aeronautical Terminal in the frequency bands allocated to the Mobile
Satellite Service (MSS) on a primary basis as defined in table 1.
NOTE 1: The CGC may include various types of interfaces, to terrestrial and/or satellite networks, but their
specifications are out of the scope of the present document.
The present document applies to Complementary Ground Component (CGC) radio equipment type deployed in Mobile
Satellite Services systems which have the following characteristics:
• These CGCs may have both transmit and receive capabilities and are part of a hybrid Satellite/terrestrial
network.
• These CGCs operate with an assigned channel signal bandwidth (CBw) of 1 MHz or greater.
• The conventional CGCs may be local coverage, medium coverage or wide coverage ground components.
• The aeronautical CGCs may transmit/receive toward/from terminal mounted on aircraft (Aeronautical
Terminal).
• These CGCs may be an element in a multi-mode base station. It may consist of a number of modules with
associated connections, or may be a self-contained single unit.
If the CGC is an element in a multi-mode base station, unless otherwise stated in the present document, its requirements
apply only to the CGC element of the terminal operating in the Mobile Satellite Service (MSS) frequency bands given
in table 1.
The present document applies to the following terminal equipment types:
1) Complementary Ground Components for Wideband Satellite Systems.
The present document only applies to the radio interface between the conventional CGC and the User Equipment or
between aeronautical CGC and Aeronautical Terminal.
The present document is intended to cover the provisions of Directive 2014/53/EU [13] (RE Directive) article 3.2 which
states that "Radio equipment shall be so constructed that it both effectively uses and supports the efficient use of radio
spectrum in order to avoid harmful interference".

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The present document applies to Very High Frequency (VHF) Digital Link (VDL) Mode 4 ground-based radio
transmitters and receivers for air-ground communications operating in the VHF band, using Gaussian-filtered
Frequency Shift Keying (GFSK) Modulation with 25 kHz channel spacing and capable of tuning to any of the 25 kHz
channels from 112,000 MHz to 136,975 MHz as defined in ICAO VHF Digital Link (VDL) Standards and
Recommended Practices (SARPs) [i.5].
Manufacturers should note that in future the tuning range for the ground transceivers may also cover any 25 kHz
channel from 108,000 MHz to 111,975 MHz.
The present document is intended to cover the provisions of Directive 1999/5/EC [i.3] (R&TTE Directive), article 3.2,
which states that "….. radio equipment shall be so constructed that it effectively uses the spectrum allocated to
terrestrial/space radio communications and orbital resources so as to avoid harmful interference".
In addition to the present document, other ENs that specify technical requirements in respect of essential requirements
under other parts of Article 3 of the R&TTE Directive [i.3] may apply to equipment within the scope of the present
document.
NOTE: A list of such ENs is included on the web site http://www.newapproach.org.
Compliance with relevant aviation regulations may also be required before equipment within the scope of the present
document can enter into service.

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Frequently Asked Questions

An EU Directive is a legislative act of the European Union that sets out goals that all EU member states must achieve. However, it is up to each member state to devise their own laws on how to reach these goals through national transposition. Directives are used to harmonize laws across the EU, particularly for the functioning of the single market.

Directive 1999/9/EC covers "Amendment to Directive 97/17/EC". There are 2 standards associated with this directive.

Harmonized standards under 1999/9/EC are European standards (ENs) developed by CEN, CENELEC, or ETSI in response to a mandate from the European Commission. When these standards are cited in the Official Journal of the European Union, products manufactured in conformity with them benefit from a presumption of conformity with the essential requirements of 1999/9/EC, facilitating CE marking and free movement within the European Economic Area.