SI 11X Electronic CDI

SI 11X Electronic CDI

$2,220.00

The Si-11X Electronic Course Deviation Indicator is a panel mounted device that displays lateral and vertical needles from a typical navigation receiver or GPS navigator.   The non-certified Si-11X CDI is intended for the experimental aircraft market.

Si-11X Installation Manual (PDF)

Product Documents

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SKU705020-00
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The Si-11X Electronic Course Deviation Indicator is a panel mounted device that displays lateral and vertical needles from a typical navigation receiver or GPS navigator.   The non-certified Si-11X CDI is intended for the experimental aircraft market.

All information is displayed on a color 3.5” diagonal LCD display in traditional aerospace symbology.  The Si-11X displays Left/Right course deviation for VOR, ILS or GPS and Vertical deviation for ILS or GPS.   The SI-11X also displays four Annunciations, NAV or VLOC, GPS and BC (Back Course).

The Si-11X will interface with virtually all VOR and GPS navigation units.  The Si-11X mounts in a 3 1/8” standard instrument hole and is the ideal replacement for mechanical instruments.

  • Best price on the market
  • All Solid State. No mechanical needles or flags
  • Displays both VOR/LOC and GPS deviations
  • Annunciates GPS, VLOC & BC
  • Ideal replacement for most mechanical CDI’s including the GI-106A
  • Upgradable
  • High visibility
  • Small and light weight. Just 1″ behind the panel.
  • Fits standard 3-1/8″ round mounting hole
  • 3 YEAR WARRANTY

 

Additional information

Weight .5 lbs
Dimensions 3.52 × 3.25 × 1.4 in

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FAQs

What is the SI 11X Electronic CDI?
The SI 11X is a solid-state, panel-mounted electronic Course Deviation Indicator (eCDI) that displays lateral and vertical deviation signals from VOR/LOC, glideslope, or GPS navigation sources.
Which navigation sources does the SI 11X support?
It supports standard navigation receivers (VOR/LOC, Glide Slope) and GPS/NAV sources, interfaced via analog or ARINC inputs.
Is the SI 11X compatible with experimental and certified aircraft?
Yes. Its solid-state design suits lightweight panels and is commonly used in experimental aircraft; it also fits certified aircraft when interfaced properly.
What makes the SI 11X different from traditional mechanical CDIs?
Unlike moving-needle units, the SI 11X uses digital display, offering greater reliability, reduced maintenance, and sharper visibility during flight.
What are the dimensions and power requirements?
It’s panel-mounted with standard dimensions; detailed electrical and physical specs are available in the SI 11X spec sheet/manual.
How is the SI 11X installed?
Installation is straightforward, using standard panel cutouts and wiring per the SI 11X Installation Manual. Full documentation is available on Sandia’s website.
What is the retail price of the SI 11X?
The current list price for the SI 11X is US $2,135.
What are the benefits of choosing the SI 11X eCDI?
Offers solid-state durability, compatibility with multiple navigation sources, crisp digital display, and lower maintenance needs — ideal for both IFR and VFR pilots.
Where can I find technical support or product documentation?
Installation manuals, spec sheets, and support resources are downloadable from Sandia Aerospace’s “Product Documents” section under the SI 11X product page.
How do I troubleshoot navigation signal issues?
Ensure your navigation source output is correctly wired (analog/ARINC). Refer to the manual’s troubleshooting section or contact Sandia Aerospace technical support for assistance.

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