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

[Dominique Dehays]

Hi Jim ,


already done. Maybe it is the internal anan PSU , I'll try later.


73

Dom


Le 06/08/2016 à 22:59, James Malone a écrit :
> 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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