[hpsdr] MUNIN2 Update.

[Helmut]

Hi Kjell,

you know that the optimal impedance of an 1:16 transformer should be
sqrt(Z1*Z2) = 12 ohms. Please note that PCS-electronics also offers other
low impedance Teflon cables 12, 18, 22, 24 ohms.

73, Helmut 

-----Ursprüngliche Nachricht-----
Von: Kjell Karlsen [mailto:la2ni at online.no] 
Gesendet: Freitag, 22. Mai 2015 18:20
An: 'Aivars Straupe'; 'OpenHPSDR'; Helmut
Betreff: Re: [hpsdr] MUNIN2 Update.

Hi Aivars and Helmut.

Thanks to Helmut, I did not know of this company!

Aivars: Use the flexible cable with 2.45 mm outer diameter. If it is
difficult to get 4 pieces through the holes in the core, the outer
insulation can be removed. Get 1 meter, then you will have some in spare,may
be you need it for a 300W LDMOS PA!

73, Kjell



På Fri, 22 May 2015 18:02:31 +0200, skrev Helmut <dc6ny at gmx.de>:

> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi Aivars,
>
> you can get among other RF stuff 25 ohm coaxial cable in small 
> quantities here:
> http://www.pcs-electronics.com/coaxial-cable-connectors-c-40.html?osCs
> id=db5698106b2043e1ae253c509bce7d57
>
> 73, Helmut, DC6NY
>
>
> -----Ursprüngliche Nachricht-----
> Von: Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] Im Auftrag von 
> Aivars Straupe
> Gesendet: Freitag, 22. Mai 2015 13:19
> An: OpenHPSDR
> Betreff: Re: [hpsdr] MUNIN2 Update.
>
> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi Kjell!
> I would like to ask about Munin update. Cable for transformer, where 
> to better get those? I found on Aliexpress only one seller for 25ohm
coax).
> Necesarry cable lenght? But anyway, I think they sell not less than 
> one meter, I guess. That shoul be enough. About changes on schematic. 
> Would you be so kind, please, and make PDF(make red color to changes) 
> or at least list of changed parts.
> I guess, I found most of them, but who knows ;-) And HiRes image of 
> Munin could be excellent, to understand best placement for changed parts.
> I saw that one image, but there are only a part of Munin.
> What about PS, are there 24V or 13.8V?
>
>
> 73!
>          Aivars.
>
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