I purchased two of these for use at the office to use Tek P6245 active probes. Tek got these probes right, including their size and small, flexible cable. Also, they can be had on Ebay without the greed that seems to go with used Agilent probe prices. It was an amazing (and perhaps wise) event when Agilent produced these N2744A adapters. The price is right for commercial use, high for hobbiest. I think it is an acknowledgement of superiority to the Tek probe designers of the past.
On an MSOX9254 (2.5 GHz), these adapters are very poorly behaved. Although the AutoProbe contacts are clean and the pogo pins have good compression, these adapters are quite flakey and unreliable. When you do get them to work, don't breath on them, less they be re-discovered by the scope.
On an MSO3104X (1 GHz), same story. Very intermittent interface. Useless as they are too sensitive to movement with no apparent reason for it (i.e. clean connectors, good pogo compression, alignment, etc.)
At home, interesting results and the reason for this post. I have been able to get these adapters to work nicely on a 54846A (2.5 GHz) scope BUT only with the following sequence:
1. remove all probes
2. default the scope settings
3. cycle power on the scope
4. turn scope off
5. attach N2744As with probes (P6245 in this case) attached
6. power scope up
Low and behold, you can activate the 50 ohm terminations on the channels involved and the probes work. Only thing left to do is go into each probes settings and change attenuation to 10:1 (defaults to 1:1).
The probes work great !
Now the bad news. If you save the settings, you cannot restore the state that the above sequence succeeded in entering. Apparently the state we achieved is not supported by the scope application.
So, if you need the probes bad enough, cycle the scope twice and enjoy !
I also tried a P6249 (4 GHz probe) and it worked the same way with, of course, better rise time.
Now for a rant. Why oh why couldn't Agilent support the 1152A probes on the 3000-X series ? I think another thread discussed the reduced functionality of the AutoProbe on these "lower cost" scopes. This is a poor move and dumb when you consider that they built a freakin adapter for competitors probes and don't support their own ! ! !

Long live the Tek 1103 !
Den