Garmin GDL 59 – Data Logger & Wi-Fi Datalink Installation Manual - Page 18

NOTE 1. Non-Garmin part numbers shown are not maintained by Garmin and consequently are subject to change without notice. 2. Extracting the #16, #18 and #20 contact requires that the expanded wire barrel be cut off from the contact. It may also be necessary to push the pin out from the face of the connector when using an extractor due to the absence of the wire. A new contact must be used when reassembling the connector. 3. For applications using 16 AWG wire, contact Garmin for information regarding connector crimp positioner tooling. 3.3 Wi-Fi Antenna Installation For use with the GDL 59, Wi-Fi antennas have an operating within a frequency range of 2412-2484 MHz. Minimum antenna requirements are listed in Section 1.4.4. NOTE It is the installer's responsibility to ensure that their choice of antenna meets FAA certification standards according to the specific installation. This installation manual suggests the antenna specifications listed in Section 1.4.4. Other antennas may be acceptable but their installation is not covered by this manual. There are several critical factors to take into consideration before installing an antenna for the GDL 59, these factors are addressed in the following sections. 3.3.1 Antenna Mounting For installation mounting of the Wi-Fi antenna, follow the manufacturer's instructions and the instructions in this Section (Section 3.3). It is not required to mount the Wi-Fi antenna on the outside of the aircraft. 3.3.2 Antenna Grounding NOTE Improper grounding of the antenna can cause poor signal reception. It is very important to have good conductivity between the coaxial shield and the ground plane. This is ensured when all the fasteners properly ground the antenna base to the skin of the aircraft. The resistance between the antenna and the skin of the aircraft should be less than 10 milliohms. Page 3-2 Revision C GDL 59 Installation Manual 190-00837-00