Re: what is wrong with RF people?

On Tue, 29 Oct 2024 18:56:34 -0400 (EDT), Martin Rid
<martin_riddle@verison.net> wrote:

john larkin <jl@glen--canyon.com> Wrote in message:r

https://www.digikey.com/en/products/detail/macom-technology-solutions/MASW-007107-TR3000/4429770Apparently "DC" means 2 GHz to these people. They test it with 8 pFseries caps on the input and output.I once used a Maxim part rated DC to 10 GHz, that absolutely screwedup below 100 MHz.A lot of "DC" parts are actually characterized down to 9 KHz, becauselots of spectrum analyzers only go that low.Grrrrr.

>
O yes,  they are different. No one would really understand,  until
you work with one.
>
Cheers

I found one Pericom RF switch that is "True DC to 8 GHz", which may be
an improvement.

So DC means AC, but "True DC" means DC in the RF world.