![]() ![]() (This is clear in the GTX45R install manual which is the non TSO'ed version of the 345R. which is about what that notch feels like. There is a notch (hole) that is covered by the sticker, that is the official way for the bluetooth signal to radiate. ![]() The secret to making Ing a passive repeater work is to keep antennas close as possible.ĭocumentation for some other similar Garmin transponders (3X5 for one) does claim the Bluetooth antenna is under the label.įeel under the blue "GARMIN" label on the front of the unit. We have 4 Bluetooth headsets operating in the plane and now my iPad picks up the GTX345 signal perfectly. This was connected to low loss transmission cable which was fed behind the trim panels to another antenna near the pilots left hand. Nor does it use power.Īn inexpensive WiFi antenna was secured within 1” of the vent hole to capture signals. The passive antenna system makes makes no electrical connection with any of the planes systems. Keep in mind flipping the unit over is an extensive job, several hours of labor and reprogramming the unit. I will also also state I have factory air conditioning.įlipping the unit unit over and installing a passive repeater antenna system fixed the signal issue. My unit was installed by Hartsell Avionics in Tyler, TX with the hole down. However, other Garmin instructions indicate installation with the vent hole on top or bottom is acceptable. A sticker on the unit states to install with the vent hole on top. GTX345 has a single vent hole which is also, per Garmin, where the Bluetooth signal escapes the fully shielded LRU box. With 4 people and bags the signal was there but unusable in the pilots seat. So last year had the GTX345R installed in my Acclaim S. ![]()
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