The BUC-290-310-XXX from Teledyne Microwave Solutions is an ITAR-free Ka-band block upconvertor (BUC) that has been designed to operate over a single or dual output frequency range. The first band is 29 GHz to 30 GHz and the second band is 30 to 31 GHz. Small modifications to the unit enable custom bands, both in frequency and bandwidth, to be incorporated in the unit. The two bands do not need to be adjacent to each other but do need to operate in the general Ka-Band region.