Review on HYS Dual-Band 9.5/11.5dBi 100W Yagi Antenna 8 Element Beam for Ham Radio/Repeater – TC-YG08UV by John Stefko

The measured SWR is very good in the UHF 440-450 MHz band, but in the VHF band the antenna has no SWR below 2:0 to 1 in the 144-148 MHz band. Offer. The lowest SWR measurements appear at 140MHz. Adjusting the jumper on the side of the VHF antenna does not produce the best or lowest SWR in the 144-148MHz band. The SWR was well above the normal readings of 2:1. My measurements were taken using a NANO VNA-F with a 3ft RG-316 precision cable and proper calibration procedures. I could also test this later with an Agilent FieldFox or HP 8753C VNA block, but I suspect the measurements will be very close to what I'm seeing with the Nano VNA block. So at the moment the antenna is very good for UHF operation well below 1.5:1 SWR, but not suitable/suitable for VHF operation. If you have any additional information or setup procedures, please let me know.