I can't see where lowering the tx can damage the card. Eventually, you'll just get to the point where it doesn't transmit.
I don't know if the R5H has an external amp or not, I imagine so, so eventually, I think the amp is just going to quit boosting signal. As in, you turn it down 1dB more and you lose signal entirely (rx -65, down 1dB, nothing).
Just a moderately educated guess tho... I don't know if you can even put negative numbers in the tx power tho.
Last edited by 0ldman
on Wed Jun 17, 2009 3:12 pm, edited 1 time in total.