Thanks Reginald! The at answer was worth the price just for the TDR link.
Do you know if there's a Mac equivalent out there somewhere? Looks like I
need Windows for that one. On the terminators, I think I'd be willing to
pay extra if it meant no hassles on the terminators. I've done some
searching and see them out there. I thought I'd check here first given that
I've shipped stuff around the world to list members "in need" for nothing
more than the cost of postage and I know there are others on this list that
sometimes do the same with their surplus (something I'm very very thankful
to have benefitted from already).
On Thu, Apr 4, 2019 at 5:32 PM Reginald Beardsley via Groups.Io <pulaskite=
[email protected]> wrote:
David,
These should be good quality:
I have 8 very good generic Chinese thru terminators which I bought on
eBay. But I can't find any information about who I bought them from. TDR
testing on my 11801 shows no reflections below 500 MHz which is all you
can really expect out of BNC and usable to 3 GHz. My 200 MHz Instek
MSO-2204EA shows no reflection, whereas my 1.5 GHz LeCroy DDA-125 shows
some.
I strongly urge you to get one of Leo's pulsers:
and learn to do TDR testing of connectors and cable. That will allow you
to buy connectors on eBay and return those which test bad. The major
problem I have found with Chinese BNC adapters is the male connectors have
intermittent connections. Unfortunately, I only figured how to test them
long after the return period had ended.
I'd been playing around testing connectors on my 11801 using some 20 GHz
SD-26 heads and the calibrator output and am quite blown away by the
sensitivity. I can see the reflection from an SMA-F to N-F and an N-M to
BNC-F stack and from an SMA-F to BNC-F. In both cases the reflections are
above 700 MHz.
Reg
