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Hi David, We are talking about using the TinySA signal generator output. ?When talking about a signal generator it’s a little misleading calling something an Audio generator vs an RF generator as

The 209A should do 50kHz with no problem! Is 50kHz audio or rf? Depends on your point of view, or whether you are a bat or not. (:-)) 73 Jeff G8HUL ________________________________________ Sent:

Of course you won't see any movement if the meter is full scale, you must reduce the input level until the S meter is only slightly showing a reading and THEN adjust the coils. 73 Jeff G8HUL

Coming in late to this subject. The 209A is an AUDIO Oscillator; the Ultra is an RF device. So the Ultra won't see any indication. Is this not correct? David AD4TJ

You can also try increasing the TinySA Ultra output to -22 dBM versus the -48.1 dBm level you showed in your setup (but that might still not be high enough for your needs). ?-22 dBm is the largest

Using the HP209A S-meter was top scale and the voltmeter measuring 1,41 volts too; and no movement when tweaking the coils. I will try to reduce the output level of the HP209A with a toggle

Was the S meter and external voltmeter stuck at the same positions when using the TinySA Ultra? ?If not then you need to reduce the output level of the HP209A until they are no longer “stuck”. I

Yes, I know that. But there is no deflection in the S-meter , is stuck, no movement at all. And the external voltmeter is also stuck in 1,41v; of course I tweak the indicated coils.

I just looked in the manual again and it just tells you to adjust the signal level amplitude of the signal generator to a level that just gives you slight AVC deflection. ?Therefore you need to make

Maybe this could happen or the signal too small or large. Do not know the right signal, do say nothing in the manual, in the first stage I can hear the tone and can? zero beat it.

As Jeff mentioned it sure sounds like the output level of your HP209A was set too high, whereas you saw nothing when you used the TinySA Ultra. ?I did a Quick Look in the manual you attached and see

Hello, When the generator is on ; I have moved the sine wave potentiometer but not results Should I place an attenuator then? How do I know the right value output?

Surely if the S meter goes full scale then the generator o/p is too high, or are you saying it goes full scale with the generator off?? Jeff G8HUL ________________________________________ Sent:

What a coincidence! Yesterday evening I took borrowed an HP 209A and made a try , this time the S-meter goes to the end of scale but can be made nothing ; I tweaked the coils but no a significant

Dual output DDS function generators with better than 1 Hz resolution, 50 ohm output, ?and frequency coverage from 0 Hz to 15 MHz are readily available on Amazon.com from between $100 and $130 USD as

A high pass filter will clean it up. I have a whole assortment of them that I use between 1GHz and 14GHz. They can be found for less then 10 USD each at times on the auction sites. John

The HP 209A covers 4 Hz to 2 MHz and can be found for not a lot of money. https://kenrockwell.com/audio/hp/209a.htm "enriqueeeeee2001 via groups.io" <enriqueeeeee2001@...> wrote: -- 73

Hello Enrique, I just tested my TinySA Ultra using the same signal generator output settings that you are using and it appears to provide the correct approximate signal level when tested into an open

I want to report back. I've got a low pass filter (f_c=6 GHz) and the 8 GHz signal was still there - so it is indeed a mirror as Erik suggested. If i take a closer look, it seems to be a mirror of the

Thanks!!