[hpsdr] MUNIN III

[Marc OLANIE]

Hi Kjell
Two innocent questions
- What kind of EDA do you intend to use to design this new amp ?
- do you intend to test you "new gen Munin" with some "new gen ldmos transistors" (in other words,  7 or 8 dB more compared to the  original 50 dBm? ) 

73+
Marc f6itu

-----Message d'origine-----
De : Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] De la part de Kjell Karlsen
Envoyé : lundi 14 août 2017 21:12
À : hpsdr at lists.openhpsdr.org
Objet : [hpsdr] MUNIN III

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

Hi All.

I have done a new layout of Munin II removing all the components ahead of the gate transformer for the PA transistors. I have ordered some prototype PCB´and when I get them I´ll build one or two prototypes and test them. If the results are as good as the preliminary tests I have done, I´ll publish the schematics and Gerber files so that if someone want to collect a list and order PCB´s, it is fine. I have no intension to do it myself.

I have also ordered some prototype PCB´s for a 100W T/R switch. It is not using any high voltage DC inverter for blocking during TX but just rectify the HF and use it. I have tested it on 150W and I believe that by just increasing the size of some of the inductors, it can be used up to 500W.  
But that has to be tested.

There is also an input for Pure Signal on the T/R Switch.

So if someone is interested, I am going to have some spare PCB´s to send them.I have uploaded the schematics to Google Drive.

https://drive.google.com/open?id=0B24WScJ3UyUvWXBkT3A5M3NOM0U
https://drive.google.com/open?id=0B24WScJ3UyUvWXkxOHQzWGlLNTQ

73, Kjell

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