[AILtech] Re: [Test-Equipment] LF Ailtech 7514 and noise sorce

[J Forster]

jeremy-ca wrote:

The HP 8970A & B will measure directly to 1600 MHz  and 2047 MHz for the B

> model with Option 20. The B will also drive a plotter and I believe PC
> control over the HP-IB is possible. The setup instruction set is also a bit
> different for the B. They are microprocessor controlled and the AIL is all
> manual.
>
> The 8970A has less demand in the market so prices are often low.

Only the very early AILs are manual. The AIL 2075 is fully uP controlled, has
GPIB, and is VERY capable.  It goes well above 1 GHz with the internal mixer and
as high as you like with an external mixer and LO. The AIL noise sources are
quite robust. I've never seen a bad one.

BTW, many of the AIL 75xx's are System Noise Monitors, rather than flexible test
instruments, made to be built into systems

-John


> HP noise sources are fragile and expensive, use of a pad ahead of the DUT
> prevents damage. NoiseCom has a source that is less sensitive to damage and
> a bit cheaper.
>
> >
> > I am just trying to figure what I would need to test some rec amps for 50
> > MHz to 10 GHz>
>
> The HP or something similar. The 8970 is the standard for all the noise
> measurements tests at the conventions, hamfests, etc.
> It can be a real PITA to setup, the enclosed pull charts leave a lot to be
> desired so be sure to get the manual.
>
> Carl
> KM1H