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Hi, I have got a 8560A with options 002, 003 and H15. 002 is built-in tracking, 003 is precision frequency reference, but what is H15 ? Best regards.

Did you check input attenuator (if remember 7dB 5W SMA-m SMA-f) just behind input N connector? For IP address and real time clock, change the battery on main board - Panasonic BR2325 Lithium

I had no trouble finding & using the front panel firmware adjustments for changing the main SA trace brightness but I need to turn up the brightness of the background grids (graticules) and misc text

ok You use the input att to optimize your dynamic range of the analyzer--thats first of all determined by the first mixer 2d 3d compression point.Most hp analyzers are made to use the full dynamic

This is normal when you chance att settings-all but noisefloor will remain steady-thats one of the good things whith the new type of analyzers-- Hardy -----Oprindelig meddelelse----- Fra:

Thanks all � For a bit more information here is what I experience: 1. Set sig gen to 50 MHz, 0dBm 2. Measure signal using VSA == -16.25dBm 3. Set input attenuator for 40dB 4. Measure signal using VSA

Yes But it completes selftest--so the faullt has to be between rf input connector and rf switch(used only for cal)- first mixer. The selftest checks frontend att 1 dB steps from 0-40 with a 50Mhz

It sure could be something else. Even a low LO to the mixer.

I suppose this is the wrong forum for this, but I have complete set of 2 separate (first and second printing) operators manuals and the blue 3 ring thick users guide for this s/a for sale. First $25.

I have a very good original manual for sale. It has some writing on it, but otherwise it looks hardly used. First offer for $20 gets it. You pay shipping.

Tom et al If the loss is exactly 15 DB i would look for something else. Regards Hardy Fra: hp_agilent_equipment@... [mailto:hp_agilent_equipment@...] Sendt: 10. juli 2017 04:53

I'm betting it is the GaAs spdt rf switch on the input that has the loss.

The input switch U38 (spdt GaAs) is available. Do a google search for it. MGS-71018 . I have seen these get lossy at 10 to 20 dB. That would be the first thing I would try. This should work though it

Tom Have sent the rf clip to tony--the pictures you are asking for are very easy to find on the internet Fra: hp_agilent_equipment@... [mailto:hp_agilent_equipment@...] Sendt:

Aha, now I know better. I (think) I was talking from computer and instrument, which makes it HP-IL, and not HP-HIL. I remember this going from either logic analyzer to computer (never quite had one)

I was thinking HPIL. Odd serial format with odd connectors and not all that popular (to me). Harvey

Hey Tom - Thanks for the reply. David.DiG sent me the CLIP (I'm hosting it here for now https://1drv.ms/b/s!Amqar8_XQ9UzkKoGH1kGOfX_Zxj9WA https://1drv.ms/b/s!Amqar8_XQ9UzkKoGH1kGOfX_Zxj9WA) and that

Paul, The National Instruments cards ARE supported by HPDrive, the program depends on cards based on the NEC uPD7210 and derivatives which includes most if not all National Instruments ISA and PCI

Can you get a few good pictures of the RF section and post them? Maybe we can identify how they did the attenuators. Some that I have seen used Gaas smt spdt RF switches for the attenuators. Later

Thanks � I took the unit apart, including opening up the A17 RF Assembly, and there didn抰 appear to be any mechanical relays in there. I couldn抰 find any information on the components closest to the