Yes, the male is a PL-259, the female on the radio is an SO-239. Both are 50 ohm connectors. Get rid of the 75 ohm RG-59 and get 50 ohm cable, or return it to where you got it and exchange it.

 

Now you will be talking

But watch out for those branches

 

Well I guess I will have to look into something else. I do not like the long whips etc. so I just bagged everything disassembled it and took it back. To much work for something I am only gonna use once in a while when on long road trips. Thanks everyone for the help.

Fire Rooster

 

What did you take back? the radio and everything? or just the antennas you bought?

If all you want it for are road trips, then why go to all the trouble just slap on a mag mount

 

you can't 'co-phase' antennas using the same impedance feed line. It isn't strictly necessary to use 75 ohm coax, though. If you can find it, 93 ohm coax would work too, or almost any impedance larger than 50 ohms. The bigger the difference is, the 'better' it will work, (sort of). You also have to consider the 'matching transformer's other characteristics, such as power handling ability (break down voltage, actually), how easy it is to find, what it costs, etc. Since 75 ohm coax is so common, it's the 'usual' choice.


PS - You are basically dealing with a parallel resistive circuit (handle impedance like you would resistace, in this case). If you analyze 'how' the different values affect the resulting resistance/impedance in a parallel circuit you'll see what I mean. To my knowledge, there are no commonly available coaxs that will result in 50 ohms, they all result in some impedance that is 'close', but not 'on the nose'. In most cases, 'close' is good enough...


Several times a year we get tech calls from installers who place dual antennas on their vehicle and run RG-58 or RG-8X from each antenna to a T-connector at the back of their radio only to find that the system "doesn't get out". You should not use 50 ohm coax on a ground plane dependent dual antenna installation ... it MUST be 72 ohm RG-59 type coax. These flawed installs can be misleading because SWR tests can show exceptionally low SWR, making the installer think that all is well. However, the impedence of the antenna system does not match the requirements of the radio and therefore, the output power of the radio is greatly reduced. In several tests, we found that a 4 watt radio would only generate 1.75 watts of output power which is the equivalent of having an SWR reading that exceeds 6.0:1. in addition, there is no need for a t-connector as a pair of 59 lines fit quite nicely into the rear of a PL-259 connector.