I'm installing my 536hp in my car and am a little disappointed with the signal strength of the dongle, does anyone have any suggestions as to how I can boost the strength? Maybe a portable AP or router?
I suspect that by the time one ended up purchasing all the stuff needed to create such a thing, the cost would be approaching that of a portable scanner.
This would not be so difficult. You would need 2 routers. You would need to know how to wire them together and to configure and program them.
Which puts the difficulty of the endeavor way outside what most people are willing to attempt.As someone with more than 20 years of experience in the IT field, I could do it, but don't plan on bothering because of the hassle that it would be, especially if aftermarket / custom firmware is required. If you assign any value to your time, you're going to be far better off in terms of expenditure of effort by simply getting a 436HP (Amazon Warehouse Deals has them for around $360, like-new units returned by people who found them too complex) and a decent HT antenna, rather than kludging together a pair of WiFi access points in your vehicle, mounting an additional antenna to the vehicle roof, etc.