Montáž modulu

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Pro dosažení optimálního fungování je nezbytné správné připevnění k modelu. Pokud se neprovede korektně, bude přesnost funkcí zhoršena nebo v nejhorším případě funkčnost omezena.

Proto je nezbytné provést následující kroky velmi pečlivě.

1 Monžát na modelu vrtulníku

Modul je nezbytné připevnit vodorovně tak, že je logo GeoLink viditelné shora. Na výběr jsou dvě možnosti montáže:

  • Horizontální (0°) - konektor směřuje ke hlavnímu rotoru
  • Horizontální (180°) - konektor směřuje k vrtulce

Ještě před samotným upevněním doporučujeme prostudovat kapitolu Srovnání.

1.1 Umístění modulu

GeoLink by měl být připevněn nejlépe na OCASNÍ TRUBCE. Tato pozice je zpravidla nejvhodnější pro dosažení optimálních výsledků. Ideální umístění by mělo splňovat následující:

  • Je ve vzdálenosti alespoň 5cm od větších vodivých částí, jako je např. uhlíkový rám.
  • Je ve vzdálenosti alespoň 5cm od jakékoli elektroniky (převážně serv).
  • Je ve vzdálenosti alespoň 8cm od elektrického motoru.
  • Je zaručena přímá viditelnost s oblohou.
  • Je přesně ve vodorovné pozici.

Zvolte takovou pozici, která není příliš daleko tak, aby byl dodaný kablík mezi jednotkou Spirit a modulem dostatečně dlouhý. Umístění modulu příliš daleko na trubce také může způsobit zhoršení těžiště.

1.2 Postup montáže

Module attachment is normally performed by provided Double Sided tape. Provided tape has extremely good bonding properties so that it can hold more than better even when only two rails of the tape are used.

Some helicopters are equipped with a fuselage instead of boom. In that case there is chance you will have to spend more time to achieve flat mounting surface.

Optionally you can use a third party mounting support designed for GPS modules.

Warning.png Never mount GeoLink directly on a thick metallic parts, near a motor or any servo.


Geolink-horizontal.jpg
Example: Position is Horizontal (0°); Rotor head is at the left side.


Info.png Each circuit containing antennas is very carefully designed to achieve correct impedance. Impedance is electrical property which is directly determining performance of antenna. Impedance is changing immediately by placing any parts close to the circuit, especially near antenna. Because PCB is acting as a part of GPS antenna any change to the PCB, including screws has noticeable impact. Thus we highly do not recommend doing any hardware changes to GeoLink module.

1.3 Mounting with provided tape

1. Take the first piece of tape and glue it approximately in the middle.

Geolink-mounting-1.jpg

2. Attach the module at the tail boom.

Geolink-mounting-2.jpg

3. Divide second piece of tape.

Geolink-mounting-3.jpg

4. While holding folded tape in two fingers insert it between module and boom to create support (from both sides). With a finger or a tool try to insert both pieces as far as possible so that adhesive surfaces are holding well.

Geolink-mounting-4.jpg
Geolink-mounting-5.jpg


Warning.png The tape will shortly adhere on the surface tightly and can't be reused anymore.


1.4 Unmounting

In some cases pilot might need to remove GeoLink from a model, for example during a repair. When provided double sided is used a special care must be taken!

Always try to pull out double sided tape first, not the module. Lastly rotate with the module gently until double sided tape will peel off.

Warning.png Never pull the module in any way when mounted with double sided tape! This could bent or crack the plastic enclosure.


2 Wiring

Wiring is done through one JST to JST cable with length of 22cm which is supplied with GeoLink. Longer cable is possible and will be available. For GPS itself a shorter cable is better, because any additional cables attached to the module and Spirit unit could distort the signal.


μSpirit SAT - Satellite port
Spirit Primary satellite port
Spirit Pro Secondary satellite port


Info.png GeoLink cable is compatible with Spektrum satellite cables.


Geolink-wiring.jpg
Wiring with Spirit Pro unit.

3 Alignment

Since it is uneasy to visually align the module perfectly, the GeoLink has built-in digital level in the Spirit Settings. There you can see how to align the module and perform a necessary adjustments.

GeoLink-Alignment.png

3.1 Alignment procedure

Alignment can be done prior the mounting or even later, as needed.

  1. Connect GeoLink and Spirit unit with provided cable (while GeoLink being not mounted yet).
  2. Power up the Spirit unit.
  3. After initialization start the Spirit Settings software.
  4. Open General tab - GeoLink module settings.
  5. Move to the Module tab there.
  6. Place GeoLink at a flat, aligned horizontal surface anywhere on your model in order to get a precise reference. (for example the Spirit unit)
  7. Click Set as zero (temporarily) button to reset the angle.
  8. Move GeoLink to a desired mounting position.
  9. Mount it with provided double sided tape at position ideally with 0° deflection.