I've had mixed results buying from that seller. Never a deliberate scam, but one xtal oscillator that seems to be not quite right while other things were fine.
Em, I'll let you know how it works for me, as I have just bought the PRS10.
The worst experience was buying a FEI 5680 Rubidium, though. Brian Kirby and I bought around the same time and swapped emails as we were having the same experience. Glossa advertised them as tested good, programmable, and pointed to several documents on the web. Turns out none of that information was actually correct for these units. After sending one back and getting a replacement that worked (actually didn't work) the same, I finally figured how to power it correctly by tracing circuits and got it working.
That does sound dishonest.
I have never figured out how to program these things. In fact I know of no way to adjust the frequency at all, so its live with it as it runs now. So I find it pretty hard to figure how he tested them, if he couldn't tell us how to power them. He has a 'friend' who knows how to program them, but couldn't tell us how or give us a contact for 'friend'. He claims lots of other satisfied buyers of these units, but I can't see why unless they have access to more information than I do.
I guess people do not always want to program the things. The Stanford is programmable, but I bet a lot of people just buy them with a view to it being an accurate source, and leave it at that.
The trouble I had with the 10811-60111 / 10811A is another example. It seems people are buying those as ovened oscillators, not realising the 10811-60111 is not such a high spec device as the 10811A.
So, much of his stuff is good, but not all, and don't take everything he says as fact.
OK. I'm pretty sure the documents I have related to that device are correct. I will however quickly check if it is programmable via the serial interface.
-- Dr. David Kirkby, G8WRB
Please check out http://www.g8wrb.org/ of if you live in Essex http://www.southminster-branch-line.org.uk/
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