Digital Yacht iAISTX Class B Wireless Transponder [ZDIGIAISTX]iAISTX Class B Wireless Transponder **As the FCC requires all units sold in the US to be programmed by a qualified technician. Please submit the form below for programming at the time of purchase. A copy of the MMSI registration or FCC Ship Station License is required along with the vessel master or owner's signature on the completed programming form.** Click here to download form. iAISTX has been designed specifically for the growing number of