On Nov 8, 1:56*pm, Bob wrote:
Hello,

Two questions, please:

a. *Is there some way to tell if a USB cable is USB 2, or if it is an
older version ? Some symbol on it, perhaps ? *What about for USB 3 *?

Is USB downward compatible for USB usages ?

b. *Any recommendations for an indoor antenna for HF (30 MHz) that
would be omni-directional, and really small in size ?

Would like to have something reasonably sensitive that might fit on a
desktop, or on top of the radio itself.

Would it have to be an active-antenna to meet this criterian ?

Thanks,
Bob

Re USB: So far, I've had few issues intermixing USB 1.1 and USB 2.0
devices. The one exception: my old Win-98 laptop doesn't like large
thumbdrives. Maybe it doesn't understand them; they're supposed to be
driverless but the laptop asks for the driver, anyway. New laptop, no
problems.

I have several brands of USB 1.1 and 2.0 memory modules which work
fine on either my old or new computers, with a transfer speed
difference, of course. I have a couple of USB hubs and they seem to
work fine, too. One computer does warn if I'm using a high speed
device on a low speed port, but it goes ahead and works as soon as I
close the warning.

"Sal"