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Mr. Massey, huge thank you for this document. It is of tremendous help. -- *Steve Johnson* *K0OIL*

John. Could that be done as with a second keypad when you enable harmonics measurement asking for the attention of the fundamental? -- For more info on the tinySA go to https://tinysa.org/wiki/

Eric, When I measure harmonics I always use? well defined high pass filters that suppresses the fundamental by >50db. The commercial spectrum analyzer I use at work lets me input the attenuation of

There is either something wrong with the first switch or with the LNA The new FW detects this and refuses to calibrate -- For more info on the tinySA go to https://tinysa.org/wiki/

Fix: 500Khz range.

When I turn off LNA? I generate CAL out at 30Mhz it work fine . But I turn on LNA look like this. I backed to the old firmware.

After I update firmware tinySA4_v1.4-40-g2f63e1c.dfu Level call it not pass see picture below. Connector work normal

With the latest FW the selftest will do a better check on the LNA -- For more info on the tinySA go to https://tinysa.org/wiki/

Where can this be bought, please, Larry? Not that it's likely to be economic for the UK, though. I did search and find: https://www.thingiverse.com/thing:5768574 but no purchase price. 73, David

There's another way to do this that might be easier: "sniff" the receiver's local oscillator with the tinySA and calculate the receive frequency from that.? It helps if you know the first IF

I'm using the original version that I bought.

Are you running the latest firmware? The version info is difficult to read. The last picture seems to suggest the LNA is not amplifying and this will be detected with the latest FW -- For more info on

After I replace RF switch all look ok I can LevelCal not Critical level . But I SELF TEST? ?test 13 not pass.

I am able to use both my tinySA and my tinySA Ultra with Linux Mint 20.3 Cinnamon and tinySA-saver 0.2.2.? Are you using the latest version of tinySA-saver from github?

It looks like this page has moved: https://emrcorp.com/resources/?_sft_category=tech-info

WOW!

guess I should've splaineed myself more gooderer, i.e. on the "referenced" page there is a LINK < https://www.emrcorp.com/techinfo > where the page goes to 404, sometimes talking (figure of speech)

Hi Mike, Not sure what your problem is. I see only the post that was linked, no ads, no 404.

sure, after you skew down the page you'll find all sorts of ads, is that the idea? Mike C. Sand Mtn GA

Works for me. Bob