[hpsdr] ANAN 10 28Mhz tx spectrum and generated birdie

[James Malone]

Dom,

Always check the power source!

I recommend it.👍

When I return home I will check my ANAN-10 which I use on 3 cm EME 
Best 73
Jim Malone wa3Lbi

Sent from my iPhone

> On Aug 6, 2016, at 8:09 AM, Helmut <dc6ny at gmx.de> wrote:
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hi Dom,
> 
> I'm not in doubt about your competence. I checked the solo boards -
> especially 2 Hermes -  directly at the TX socket. No in-band spurs or
> birdies less than >80 dB down.
> 
> Maybe you'll disconnect the PA-board of your ANAN and recheck.
> 
> 73, Helmut, DC6NY
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] Im Auftrag von
> Dominique Dehays
> Gesendet: Samstag, 6. August 2016 12:06
> An: hpsdr at lists.openhpsdr.org
> Betreff: Re: [hpsdr] ANAN 10 28Mhz tx spectrum and generated birdie
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hi Helmut ,
> 
> 
> I can assure U I know very well how to use a spectrum analyser and I 
> garantee there is no saturation in my measurement. Those spuriis really 
> are there and there are some out of the ham bands as well. The question 
> now is :
> 
> are they coming from the sdr board , or from the amplifier ( maybe it is 
> time to look for some DC-DC converter inside or something like this?)
> 
> 
> 73
> 
> Dom
> 
> 
> 
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