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

[J Forster]

OK. I dug out the catalog I got in 1983. This catalog predates the 2075.

I was slightly wrong on the numbering. It looks like the 7514 is a PANFI not a
System Noise Monitor. There are no spec sheets on the 75 in the catalog, but
the 7514 but it has 5 NF ranges from 0 to 33 dB and (optionally) a choice of 6
IF frequencies, other than 30 MHz (21.4; 36; 45; 60; 70; 160 MHz). It is
calibratable to any noise source with an ENR of 14.5 to 16.5 dB.

Note that both the 75 and 7514 will not automatically plot NF v. frequency.
You have to do it a frequency at a time and likely recal for changes in the
ENR w/ frequency. The 2075 does it automatically, once you've put in the cal
data.

The System Noise Monitors are the 73xx series and come in a variety of flavors
with different IFs and other options.

The AIL SS Noise Generators are the 7615 (0.01 to 1.5 GHz) and the 7616 (1 to
12.4 GHz). HP makes the 346B (0.01 to 18 GHz). All take 28 VDC so may well be
usable with the other instruments

Best,
-John



Edward J White wrote:

> Hi John:
> what does the Ailtech 75 and 7514 unit do. The way the write up reads
> the noise source  works a bandwidth of frequency's that goes into the
> DUT and the output than goes into the Ailtech 75 or 7514? Or do you use
> a mixer to convert the output of the DUT to 30 MHz which is the input to
> the Ailtech 75 or 7514.
>
> What is the difference between the Ailtech 75 and 7514 how about the
> HP-8970 A &B do they work the same? [snip]
>