![Need help troubleshooting high swr on a Sirio gps 27 1/2 wave base antenna. Any help is appreciated : r/cbradio Need help troubleshooting high swr on a Sirio gps 27 1/2 wave base antenna. Any help is appreciated : r/cbradio](https://preview.redd.it/need-help-troubleshooting-high-swr-on-a-sirio-gps-27-1-2-v0-x6w4hs7tfux91.jpg?width=640&crop=smart&auto=webp&s=2b7e93a43fd860bea7bba2fb0e9516416107867e)
Need help troubleshooting high swr on a Sirio gps 27 1/2 wave base antenna. Any help is appreciated : r/cbradio
![SWR issues. really high. same on 1 and 40. swr lowers when I put hand on back of radio. firestick 2 antenna 4 foot. just used a firestik mount on side of SWR issues. really high. same on 1 and 40. swr lowers when I put hand on back of radio. firestick 2 antenna 4 foot. just used a firestik mount on side of](https://preview.redd.it/c4957rhh0zo81.jpg?width=640&crop=smart&auto=webp&s=96a6e638ab6388f1cf19110550432ad3b927602e)
SWR issues. really high. same on 1 and 40. swr lowers when I put hand on back of radio. firestick 2 antenna 4 foot. just used a firestik mount on side of
![Uniden PC78LTX 40-Channel Trucker's CB Radio with Integrated SWR Meter, PA Function, Hi Cut, Mic/RF Gain, and Instant Channel 9,Silver Uniden PC78LTX 40-Channel Trucker's CB Radio with Integrated SWR Meter, PA Function, Hi Cut, Mic/RF Gain, and Instant Channel 9,Silver](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/S/aplus-media/sota/81024870-408b-4c95-9799-575a734dde8c.__CR400,330,1022,632_PT0_SX970_V1___.jpg)
Uniden PC78LTX 40-Channel Trucker's CB Radio with Integrated SWR Meter, PA Function, Hi Cut, Mic/RF Gain, and Instant Channel 9,Silver
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![Uniden PC78LTX 40-Channel Trucker's CB Radio with Integrated SWR Meter, PA Function, Hi Cut, Mic/RF Gain, and Instant Channel 9,Silver Uniden PC78LTX 40-Channel Trucker's CB Radio with Integrated SWR Meter, PA Function, Hi Cut, Mic/RF Gain, and Instant Channel 9,Silver](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/81V1EqdVWiL._AC_UF350,350_QL80_.jpg)