[drakelist] Any disadvantages to using R-4A with T-4XB?

[Tom Bowman]

Hi,

The subject line says it all. I have both an R-4A and an R-4B. I'm going to
keep one to transceive with my T-4XB.

What is the advantage of using the R-4B instead of the R-4A with the T-4XB?
Thanks!

Tom, WA3REY