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Technical Topics => Equipment => Topic started by: Gino Italy on April 21, 2019, 2024 UTC

Title: R390A
Post by: Gino Italy on April 21, 2019, 2024 UTC
The best!

(https://i.imgur.com/ibBxKKK.jpg)
Title: Re: R390A
Post by: Gino Italy on April 21, 2019, 2218 UTC
https://www.youtube.com/watch?v=MgVMvhy4P-Y
Title: Re: R390A
Post by: Radio Station on April 26, 2019, 1809 UTC
I have both the A version and the non A version R390. From my tests the R390 performs better on not overloading in the broadcast band with strong signals like the R390A which you can correct. The A version has a different mixing scenario and has one less RF front end tube in it. Being a cost reduction version. The R90A filters are great being a improvement over the non A. I have a SDR interface taped off before the IF filter stage for a wide 50Kc spectrum display or off the IF output up to 16kc wide. This brings the R390/A up to great performance with SDR software.