Customer Service


The Comtech PST customer service department has the resources, experience and capabilities to repair all of your Comtech PST products as well as products manufactured by Hill Engineering, MPD and other OEMs.


Keep your equipment operating at peak performance with periodic calibration and alignment.


Many upgrade options are available for PST Products, including Hill Engineering and MPD legacy equipment.

On Site Service

Installations, repairs, maintenance and upgrades can be performed onsite for your convenience.

Extended Warranties

Extended warranty contracts are available for current products as well as most legacy PST, Hill and MPD products.

Technical Support

Amplifier and Systems Support
Phone: 631-777-8900 x168
Fax: 631-777-8877

Control Device Support
Phone: (978) 887-5754
Fax: (978) 887-7244

RMA Requests

Click here to complete the RMA request form

Credit Card Authorization Forms

Adobe Acrobat Version (Editable): Click Here
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