Frequently Asked Questions

Here are the most common questions we get- for any questions we missed please send us an email at

Did Diosat acquire Advanced Switch Technology- the manufacturer of AST switches?

A: Yes- we have acquired AST and are in the process of merging our product lines, it is likely that more switches will be added to the Diosat web store. Instead of having a warehouse in Montreal, Quebec and Kingston Ontario we have moved all Diosat inventory to the AST factory in Kingston Ontario and we are in the process of renaming the merged company as AST Microwave

Is everything listed in stock?

A: Yes- we only show what is in stock and available to ship immediately so that you can get your parts as soon as possible.

Do you supply other products which are not listed?

Yes, we can supply anything related to waveguide such as bends, filters, couplers, terminations, etc.... However, as there are different configurations these items are not typically in stock and have a usual lead time of 6 weeks. 

Where is the product made?

All of our products are made in Canada

Where does the product ship from?

754 Fortune Crescent, Kingston, Ontario, Canada, K7P 2T3

How much is shipping?

We can ship any piece of waveguide within North America for $25 or overseas for $100 per piece. If you are buying a large quantity please contact us for a specific quote based on your location. 

Can you ship to my country?

We can ship to most countries.

Can I use my own shipping carrier?

Yes, however, we get excellent rates so we recommend that you compare, in most cases our shipping cost is cheaper.

What payment methods do you accept?

We can give Net 30 terms in some cases. Otherwise we accept wire transfers, paypal, or credit cards. 

What is the HS Code and ECCN number of these products ?

For Flexible waveguide, bends, and terminations the HS Code is 8529.10.9000 and EAN is EAR99

For switches the HS Code is 8536.50.9065 and EAN is EAR99

What if I have other questions?

Due to time zone differences the best way to get a fast answer is to email us at or