Take a look at RG-4/RG-204 here. https://www.vikingelectronics.com/index.php
Might be a little pricey for your application, but when you consider the cost and aggravation of cobbling up something on your own, CHEAP!


When I was young, I was Liberal. As I aged and wised up, I became Conservative. Now that I'm old, I have settled on Curmudgeon.