No, this is not a wise move to make.
The antenna metals are not the same. you have to know that
antenna metals are different within all Mhz.
2nd- The connectors are different.
CB has a wider coax connector and Uhf us smaller.
Radio Range/ distance will be less if you use a short wave
antenna known as CB. Best to get a High wave antenna- UHF.
27 Mhz is cb radio and the waves are low and long (about 11
meters).
400-460 Mhz is UHF and the waves are high and short (about 67
centimeters).
You would need a UHF radio antenna to get the best SWR.
Installing a UHF antenna on a car it would require a proper uhf
antenna and coax
and drilling and using only a UHF Coax cable with the
connector.
Or buy the Uhf magnet antenna.
They are hard to find in your local city and they are pricy
because you cant buy them used or at cb shops.
you will have to buy one online or go to a Junk yard and find a
Police car that has
one on top of car.
You can Mod Coax cables only if its a UHF cable and antenna.
Grounding a car UHF antenna in house can be difficult.
Don't run ground to AC ground! you can damage radio.
Run Ground wire to the dirt outside and dig a hole and fix with
a little water and keep hot coax separated from ground on uhf.
Best is to run this to Gutter on roof.
Do not MOD CB coaxes with UHF antenna or mix with magnet
antenna
or CB, VHF, Marine radios.
You will waste your time.
800 Mhz police antenna will be your closest match if you decide
to do this.
It goes by the wave and wave length.
Keep Digging
