If you're going to use both antennas for transmitting on CB radio they should be around 1/4 wave length (9 ft.) apart to be effective. You'll need properly co phased coaxial cable as the SWR won't be correct. Co phased coax cable is usually of the RG 59 variety (75 Ohm) vs. the RG 58 (50 Ohm) for a single antenna. Using RG 58 coax with a "T" adaptor won't work either. If they're properly phased then your radiation pattern will be concentrated mostly from front to rear with nulls to the left and right of the vehicle. 18 wheel truck drivers used this particular arrangement so their signal is concentrated to their front and rear to hear other drivers much better.
Right under the back seat are rubber plugs I don't remove the plug I just put a little cut in it so there's rubber around the edge so it doesn't break the coaxials also on the back of the cab if you got skinny enough arms you can actually tap into the air vent
If you're going to use both antennas for transmitting on CB radio they should be around 1/4 wave length (9 ft.) apart to be effective. You'll need properly co phased coaxial cable as the SWR won't be correct. Co phased coax cable is usually of the RG 59 variety (75 Ohm) vs. the RG 58 (50 Ohm) for a single antenna. Using RG 58 coax with a "T" adaptor won't work either. If they're properly phased then your radiation pattern will be concentrated mostly from front to rear with nulls to the left and right of the vehicle. 18 wheel truck drivers used this particular arrangement so their signal is concentrated to their front and rear to hear other drivers much better.
Two. CB antennas that close together ain’t gonna work. You only need one antenna. also 9 feet isn’t that a little overkill?
Is it possible to add a link to the whips you use
I ordered them in 2015 from ebay.
How did you route your antenna coax into the cab?
Right under the back seat are rubber plugs I don't remove the plug I just put a little cut in it so there's rubber around the edge so it doesn't break the coaxials also on the back of the cab if you got skinny enough arms you can actually tap into the air vent