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Explore Scientific / Losmandy G-11 UPGRADE with Explore Scientific PMC-Eight GoTo System - UPGRADE

SKU ES-G-11Upgrade


The Explore Scientific G-11 Upgrade Kit allows the owner of a Losmandy G-11 to upgrade to the ExploreScientific/Losmandy G-11 with PMC-Eight GoTo System, thus allowing the G-11 to be controlled by any ASCOM compatible software. This upgrade can be applied to any Losmandy G-11, be it an older or current model regardless of whether it has the Gemini system - - INCLUDING non-tracking, non-motorized versions. The upgrade is performed by Explore Scientific technicians at Explore Scientific’s headquarters in Arkansas and results in a fully-functional and thoroughly-tested Explore Scientific/Losmandy G-11 with PMC-Eight GoTo System. To learn more about the features of the upgraded G-11 see the product description of the Explore Scientific/Losmandy G-11 with PMC-Eight GoTo System.

Shipping to and from Explore Scientific is up to consumer. A box for shipping your G-11 head is available at an additional cost from Explore Scientific.

Contact our CS department at 866–252–3811 to arrange for an RMA number so you can send us your mount prior to purchasing this upgrade.

The hardware components included in this upgrade include motor housings, two flex couplers for direct connection to the worm blocks, two stepper motors, the Losmandy RA Extension (the 0.6" saddle plate extension is not necessary with our setup), a PMC-Eight controller, a PMC-Eight mounting adapter, two durable serial cables, an AC adapter, and Explore Scientificâ„¢s free ExploreStars software.

See the Software tab to download and learn more about then PMC-Eight, ExploreStars App and the ASCOM driver. ExploreStars is available for Windows 8.1 and 10, Android, Amazon Fire, and Apple tablets.Tablets and computers must be purchased separately.

A Losmandy G-11 that has been upgraded with the Explore Scientific G-11 Upgrade Kit can be controlled by any ASCOM compatible software or by ExploreStars, which is provided by Explore Scientific at no charge. The Explore Stars application supports wireless control of the PMC Eight while the ASCOM driver supports wired or wireless control using a planetarium program that supports ASCOM. Moreover, due to Explore Scientific’s open-architecture approach to the PMC-Eight, tech savvy users can develop their own controlling software and expand the role of the PMC-Eight to fulfill their individual needs.

Here is a list of most of the ASCOM software packages available for use with the Explore


Item Number ES-G11Upgrade



Limited Warranty is two years on all electronics. Click Here to register.



Click here to download and learn more about the PMC-Eight and it’s documentation, the PMC-Eight ASCOM driver, and ExploreStars App.

Here is a list of most of the ASCOM software packages available for use with the Explore Scientific with PMC-Eight mounts: ACP; APT; AST / ATC & Ricerca (Omega Lab); AstroArt; AstroMB; Cartes du Ciel / Sky Chart; CCD AutoPilot; DeepSky; Deepsky Planner; DFM Engineering; Earth Centered Universe Pro; EasySky; Eye and Telescope; Project Pluto; Hallo Northern Sky; Maxim DL; MaxPoint; PinPoint Astrometric; Prism; Sequence Generator Pro; Sidereal Technology; The Sky; SkyMap Software; SkyTools 3; Star Atlas PRO; Sky Observer; StarryNight; Stellarium; Virtual Moon Atlas; and WorldWide Telescope.

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19 reviews
Exceptional Mount

A couple of years ago, I wanted to replace my old VMA200 mount with something more modern.
While visiting the Paris Astronomy show (RCE 2012) I noticed the Nova120. At that time, it was a brand new offering that I have not seen before, hence my hesitation to purchase
I wanted to purchase a E.U product to guarantee the quality and ease of access to support in my own language. I checked the forums and heard nothing but good things about the Nova120 so I decided to purchase it.

I have used enough astronomical instruments in the last 30 years to know what great quality is. The Nova120 coupled with the PRISM v10 and a CDK20 (508 mm) helped me pull off 900s unguided images with great ease. (Raw FITS File here). Payload of this setup is about 80 kg (160 lb).

The dizzying slew speeds, excellent accuracy and painless tracking makes this hobby easy and enjoyable again.
After using this setup for a year and a half, the only problem I had was rebalacing the gear after changing scopes. The superb electronics and software included make this tasks even more easier that just eyeballing the scope for movement due to unbalance.

You can very easily watch the motor consumption and know where the unbalance is....that easy. I have so much data that it is becoming difficult yo keep up.
I have absolutely zero regrets, this purchase has made everything easier: No summer/winter worm-gear adjustments, no guiding... just start imaging night after night after night.

Eric Barbotin

Imaging Made Easy

Prism is my GoTo program for observatory control and imaging. Prism's many features make imaging taking a breeze.

I was concerned about giving Prism a try , especially as its quite expensive. So far Im very impressed and glad of my decision.
Im a beginner at all this so haven't tried other more recommended software, Prism appealed as it seems to do everything instead of using several programs 👍🏻

Great lightweight guide scope

This guide scope replaces a 400/80 that was waaay too heavy for what it did. The smaller 60mm scope does a great job guiding and I can RA balance with just one counter weight now - much better - and it looks like something Ferrari designed

Still learning Prism using Wireless links...

I have much of your software working at this time... I have it parked on my main computer, and a notebook... My main computer is a OverClock computer with 32 Gigs of RAM Clocking presently at 4400MHz with software parked on SSD drives... The rotation dome by NexDome is still not working... Most problems like this have to do with ASCOM Drivers... There is not very much detail information on how to use this software... I have to feel my way to a total operational staus... Second issue... The rain in the San Francisco Bay Area this year has limited my access to my larger telescope (12 inch SCT)... This rain has been so significant, I was force to weatherize my observatory... My goal here is,,, I am trying to remotely control my observatory totally. I have used Netgear Powerline 2000 to handle camera images and discover controlling rules to do that... High speed is vital for images with cameras over 3 Megs... I have both 12 Mega sensors and 24 Mega sensors... I am also using Netgear Nighthawk router and its mating extender to increase control signals to my observatory that is about 100 feet on the side of hill... I am also using Virtual Here software on a Raspberry Pi inside the observatory to solve the USB interface requirements... I started out using Model B and B+ on level 3 raspberry Pi's... I have moved to Level 4 Raspberry Pi to gain access to USB 3.0 technology... Big difference! I hope by early spring to have everything working... Bob Ritter MicTechS