But in combination with a proper mobile radio would it work?
It depends on how you define "work". The Pyramid mobile repeaters are intended for a specific application, and we haven't really established that application is the one you want. These things are designed specifically to help an HT talk out of a poor coverage area to, say, a dispatch center or high level repeater, NOT to enhance communications between portables at the scene.
If the mobile radio were set to the same tx frequency as the ht's rx frequency and the svr were set for the tx frequency of the HTs. If there is something i'm missing let me know.
Yes, that could be made to work, after a fashion. The Pyramid unit is a simplex radio. When it's receiving a signal from the mobile, it activates it's transmitter to repeat to the HT, but then pulses it's transmitter off to see if the portable needs to transmit. If so, the Pyramid transmitter stays off, turns on the mobile transmitter, an repeats the HT's traffic out the mobile radio.
In that configuration, you would have one transmitter in the vehicle that NO ONE IS LISTENING TOO... a waste of resources.
I'm not looking for something to cover huge areas, just something to help the HTs get more coverage in the immediate area surrounding the vehicle.
How far an area? The SVR200 is 1/4 watt. The 250 is 1/4 to 2 watts.
The places we hunt usually have fairly thick vegetation and when we spread out the two people on the extreme edges usually have a heard time hearing each other.
Are you talking several hundred yards, several miles? Would both of you be in line of site, or near line of site to the vehicle? What is the transmitter power output of the portable radios you will be using?
Is there a specific section of the part 95 I should be looking at?
Subpart A and Subpart E.
I appreciate your help and I hope it doesn't feel like I'm beating a dead horse. And to clarify what I said in the opening post I'm new to radios but I'm very adept when it comes to electronics.
That will help. But setting this up will require test equipment and techniques you're not yet familiar with. It'll be easy to screw it up to the point that it doesn't work. You may end up gagging and spitting when you see the cost of the Pyramid units vs. the cost of something else purchased used. It's not at all the approach that I would take to solve the problem.