New Spectrum Analyzer

[SMILEX2692002]

I'm thinking about purchasing a spectrum analyzer.
I have this one in mind.
https://www.tequipment.net/Rigol/DSA705/Spectrum-Analyzers/?OrderItemId=6231334
About six months ago I got tired of having other people do my radio work and I decided to give it a go myself.
I purchased a oscilloscope and a function generator. I also purchased a BK precision frequency counter.
I have a couple bird sample ports that I use with my bird 43p.
I have had good luck using my oscilloscope to see my radios modulation waveforms and set them up properly.
I mostly have 10 meter all mode export radios.
I also stopped worrying about output power of my radios and now care more about spectral purity of my signal.
From my understanding I have to have a spectrum analyzer to verify that my signals are spectrally clean.
I don't really know if I want to invest the 700-plus dollars into one.
I have no desire to work on others radios for a profit either.
From time to time I pick up a used radio and clean up the modulation level if it's flat topping and verify that the radio is transmitting on frequency.
Sometimes I sell them sometimes I keep them.

 

[Dmans]

Sometimes I sell them sometimes I keep them.

Yea, that happened to me too. Except for the selling part. I believe I am now a radio hoarder or an orphanage for the "Down and Out, Can't be fixed, not worth having" variety of radios.

Back to a TS-940 that feels kind of sick. Sure is fun, ain't it?

73
David

 

[SMILEX2692002]

Bought a Rigol DSA815TG.
Should be fun learning how to use it.

 

[SMILEX2692002]

I have a RF sampler that I use to send my modulation information to my ocilliscope. It is connected to my Bird 43 input. The Bird 43 output has a 50 ohm dummy load connected.
The RF sampler has a BNC output. I use a 50 ohm BNC cable connected to the RF sampler and the other side connected to the ocilliscope.

Can this same setup be used with the Spectrum Analyzer when I get it?
The Rigol has a N connection input. I purchased a adaptor to accept a BNC.
To be on the safe side I also purchased a 20db BNC anttenuator if needed?

I assuming the RF sampler also anttenuates the RF since my Radios output power remains the same as measured on my Bird 43 with or without it connected in series.

 

[Unit 75]

I purchased one a couple of years ago. The very first thing I did was this modification so I could keep the very expensive trial bundled software so it would not lapse. Cheers!

 

[Unit 75]

The second thing is to purchase a DC blocker to save the input of your new analyzer. Yes, you can hook it up with your sampler. I have mine hooked that way, tied in with my scope.

 

[SMILEX2692002]

The second thing is to purchase a DC blocker to save the input of your new analyzer. Yes, you can hook it up with your sampler. I have mine hooked that way, tied in with my scope.

Can you point me in the direction of a reasonably priced DC blocker?

 

[Unit 75]

I purchased mine on eBay. It was a used one from the US. Couldn't wait for the slow boat from China lol. I think I gave around 30 dollars for it.