I recently installed a CB and adjustable antenna in my FJ40 and I picked up a Radio shack SWR meter (Ebay) to check SWR. I have a question about how to use the SWR. It came with no instructions and the only instructions I could find online don't seem to jive with the meter I have. The instructions I found say to attach the meter and set the CB to channel 1,19,40 then with the meter switched to FWD, hit the transmit button and adjust the needle to the "Set" position. My Radioshack meter does not have a "Set" position... nor does it have FWD or REF as the instructions state. It has the switch for SWR and FS and the adjustment knob. The meter reads 1 - 3 and has a red zone and an infinity symbol. So, I'm wondering what I'm suppossed to be setting it to before switching to the SWR setting and taking the reading. If anyone has an idea what I'm suppossed to be doing with this, please respond. Thanks!!