I bought one SP4T (Single Pole Four Through) switch from one US company. This switch’s size seems to be a little large. I decided to purchase this SW because it shows very small insertion loss and large power capacity.
JETSTREAM JTCS4M
This figure shows how I measure the insertion loss and other parameters with VNWA.
![2016-10-14-11-26-56](https://i0.wp.com/wireless-square.com/wp-content/uploads/2016/10/2016-10-14-11.26.56.jpg?resize=750%2C563&ssl=1)
![2016-10-14-11-26-52](https://i0.wp.com/wireless-square.com/wp-content/uploads/2016/10/2016-10-14-11.26.52.jpg?resize=750%2C563&ssl=1)
Here is the measured results. Very amazing!
![sw_off](https://i0.wp.com/wireless-square.com/wp-content/uploads/2016/10/SW_OFF.png?resize=750%2C407&ssl=1)
![sw_on](https://i0.wp.com/wireless-square.com/wp-content/uploads/2016/10/SW_ON.png?resize=750%2C407&ssl=1)