I have a 3585B. A beautiful instrument. I also have a 8594E with TG and narrowband options that is a bit more portable. It's spec-ed down to 9 KHz but I've never pushed it that low. My NanoVNA claims coverage to 50KHz. Might work OK on a Drake low IF.
73
-Jim
NU0C
On Mon, 20 Mar 2023 00:39:54 +0000
"Rob Sherwood" <rob@...> wrote:
I use an HP 3585A which is good from audio through 40 MHz. Rob, NC0B
Jim Shorney