Frequently Asked Questions (FAQs)

Do I need a counterpoise with SPOOLTENNA?

We recommend using the coax shield as the return path and adding a common mode choke (if it is not built in) at the radio side of the cable to block RF from traveling back into the radio.

Better yet, our RG-316 coax with a built-in common mode choke is designed exactly for this purpose, so you don’t have to add anything extra. This is the setup we use when field testing every one of our antennas!

If you prefer to use a dedicated counterpoise wire instead of the coax shield, you can connect one at any of the SPOOLTENNA assembly screws on the front face of the unit. A simple method is to crimp a ring terminal onto your counterpoise wire and secure it under one of the assembly screws. You can also attach a ring terminal to the antenna itself and then attach the counterpoise wire on with an alligator clip.

Ensure the screw is tightened sufficiently to make proper contact with the trace on the board.

The counterpoise length should ideally be 5 to 10% of your lowest operating band. For example, if you're working on 40 meters, you should use a counterpoise length of 2 to 4 meters.

What mast do you recommend for use with SPOOLTENNA?

For our mobile-based remote operating, we use an extending painter's pole, which handles the weight of SPOOLTENNA without any issues. While we don't have a favorite commercial mast, we've heard from customers that the POTA 33 and similar heavy-duty masts work well for more substantial antennas.

Do you offer international shipping?

We are a small family business and do not have the infrastructure to manage full international shipping. We do ship to Canada and the UK, with all taxes and duties due upon arrival. Please visit our partners at DX Engineering for additional international shipping options.