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Hi Peter, The main and FM coil signals pass through the A3 ALC board like this: The FM -? tap to the cavity oscillator is not part of the basic phase lock scheme, it's a spur avoidance fix. You don't

I have also been in the market for a 26GHz SG for a while with no luck. Although I have to say the biggest issue for me has been the sellers not shipping to Canada. I came close to getting a 8673B for

Use SP 1.3, since you have a more or less fixed IF frequency. Page 3-128 in the 8970S manual is pretty clear about that. Also be sure to use SP 3.0, which sets the IF frequency. Since you probably

Would you happen to have the bit of hardline coax that connects the front panel RF out to the inside? I'm worried that might have been damaged. Sean

Thanks as well...good stuff to start watching for. Sean

On Wed, Mar 20, 2019 at 05:28 PM, Bob Albert wrote: > > For a decent power meter you do NOT want a Bird.? They are pretty sloppy. > ? > I use my HP410B for example.? I calibrate it with my HP 3456A

I'm having a little difficulty fully understanding the YTO frequency control loop. There is a pretune DAC which gets the Main Coil to the right general vicinity.? The fine tuning (including sweeping

Hi Don, Thanks for the info. I went to hparchive.com and downloaded a catalog or two and they gave me what I'm looking for :) thanks Tim

I like the "attack" concept (!), however, that's the crux of my question - can I gracefully disassemble the problem end (agree I should be able determine which), or should I cut away the boot and try

Also check the HP memory site, I may have seen some comparison guides to there, there will not be comparisons to anything Agilent and later though. Don Bitters

Agreed on the Bird reference. They're great inline watt meters for high power needs, but not for fine performance verification. I use the E4418B and E4419B w/8482A and E9300A heads, or a U2001H USB

Over the years there have been several HP/Agilent/Keysight sig gen/ sweep gen comparison/purchase guides, generally in the sales literature. I have also seen comparison guides between Fluke and

For a decent power meter you do NOT want a Bird.? They are pretty sloppy. I use my HP410B for example.? I calibrate it with my HP 3456A in the audio range and then it's good up to at least 500

Hi James, That model is a candidate _BUT_ they don't ship internationally and that makes it harder to get. The freight can be enormous on these units too, so finding one at-the-right-price and with

Hi, I am looking into getting one. The purpose of the above exercise is simply to make sure there are no gross problems with the 8664. Of that I am quite sure now, so I am keeping the instrument and

1.3 or 1.4 mode for measurement, not sure which I should use? Manual is horrible! Kevin

Dear All, Measuring signal generator output accuracy with a spectrum analyser, even as nice a one as the 8566B, does not make a lot of sense since the amplitude accuracy is limited. The 8566B flatness

Might be worth watching this on using an 8970 on a down converter: https://www.youtube.com/watch?v=kC2guimOmc8 Adrian

I think that's all it's doing, just applying the ENR amplitude for the DUT's input frequency instead of the frequency to which the 8970 is tuned. -Dave

Or think of it as an open stub from each end. Peter