[hpsdr] ANAN-100D TX Spectrum

[amsctalx at comcast.net]

Abhi and all - 

I was going to post earlier on this, but have been rather busy... 

I checked out the TX spectrum of my 100D (with an Agilent SA) within a couple of days of arrival. I noted that, when using the P*SDR (mRX in my case) test tone generator, that I had to set the tone level generator for proper performance. This meant, in my case, setting the levels to -20dB. This gave me the expected output level, with spurs at least -60dB and often better. Just selecting the test tone button resulted in breath-takingly high spurs and IMD. I also noted that not setting the test-tone level resulted in differing spur severity on different bands. I have also fed the line input with several signal sources, with similar results. 

I don't know how Jacques tested, and don't have time to go into my process right now, but between the Agilent, my QS1R and my K3/P3, my 100D looks at least as clean as my K3, on all bands and at full rated output - when properly adjusted. 


Mike Alexander - N8MSA 



----- Original Message -----
From: "Abhi A" <abhiarunoday at gmail.com> 
To: hpsdr at lists.openhpsdr.org 
Sent: Tuesday, May 14, 2013 12:04:42 PM 
Subject: [hpsdr] ANAN-100D TX Spectrum 

***** High Performance Software Defined Radio Discussion List ***** 





Hi Jacques, 

The ANAN-100D and Angelia have very clean output if not over driven as Joe has already pointed out, I believe you may need to tweak the PA gain settings, remember half the radio is in the software :), 


Actually the Angelia Tx output is slightly cleaner than Hermes, 


I can share our test results with you if you are interested, 


73s, 

Abhi 

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