On 4/16/2013 11:01 AM, Cady, Fred wrote:
This leaves the PR6 input and output floating
We have a problem of symantics. All uses I've seen of "floating" with respect to electronic circuits mean that the circuit has no "ground reference."
(unlike when DIGOUT1 is high when the input and output of the PR6 are terminated in 50 ohms).
The word most commonly used to describe a circuit with no connected load is "unterminated."
So my question: Is that a problem for the PR6?
I see no reason why it should be a problem unless it's badly designed, which is unlikely -- it's essentially a fairly low gain preamp with low input and output impedances. Preamps of this sort are usually designed for use at the top of a tower, where they are relay-switched between TX and RX.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
