Vixen Porta II Mount with TNT Motors

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Item #VIX325-1

  • Your Price:
  • $749.00
  • + FREE Shipping
  • Popular Vixen Porta II mount with motorized control
  • Alt-azimuth mounts are lightweight and simple to use, great for travel
  • Friction drive lets you move mount by hand, let go, and motors take over
  • TNT Track-N-Train system runs on eight AA batteries
  • Porta II holds up to 15 pounds of equipment
  • Train your mount to keep objects in the eyepiece for 10 minutes plus
  • Two section aluminum tripod is adjustable in height
Questions? Let our experts help!
  • Description

    This version of the Vixen Porta II alt-azimuth mount comes with motor drives and a hand controller for fast, simple movements in both altitude (up and down) and azimuth (back and forth).  The Train-N-Track (TNT) system is a basic alt-azimuth motor drive system made by JMI, and features adjustable or trainable tracking. A simple 30-second training procedure allows the Porta II mount to track for 10 minutes or more. The TNT motor drive system includes adjustable speeds on both axes and high speed centering. The friction drives of the Porta II also allow you to move the telescope around by hand without unlocking any clutches. You just let go and the drive takes over. With a little practice, objects can be kept in the eyepiece for 10 minutes or more. This version of the TNT is battery driven with eight (8) AA batteries.

    The Porta II mount head is easily removed just in case you want to attach it to a heavier tripod. In addition, this is a great mount for terrestrial viewing. The world-standard dovetail attachment system on the Porta II was developed by Vixen and allows the mount to accept various dovetail mounted optical tubes and binoculars.

    Supplier SKU


    What's Included

    • Vixen Porta II Alt-Azimuth Mount
    • Track N Train Motor System
    • TNT Hand Controller & Cable
    • Aluminum Tripod

  • Dimensions & Specifications


    Porta II Alt-Azimuth

    Load Capacity:

    15 pounds

    Slow Motion:

    Wheel Gears

    Wheels Number of Teeth:


    Control System:


    Telescope Mount:

    Vixen-Style Dovetail Slot


    Aluminum, two section

    Accessory Tray:


    Tool Storage:



    15 pounds including tripod

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    Manufacturer Warranty

    Default manufacturer warranty.

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    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

Ask The Experts

Have questions about an item or need advice on selecting the right astronomy gear? Our team of telescope experts is here to help! Avid amateur astronomers themselves, they've tested products in the field and can provide personalized recommendations.

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