RE: 2 radios, 1 antenna... finally a prototype

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RE: 2 radios, 1 antenna... finally a prototype

KR4OW
Well It would be neat if you and Don went into making
those or making kits then you could put me on the list
to get one
David KR4OW
K24320


               
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Re: RE: 2 radios, 1 antenna... finally a prototype

JEAN-FRANCOIS MENARD-3
Actually, I found some limitations and security concerns. From my point of view, I can live with the securty concerns this way. But the main limitation I found last weekend is when you "split" signal source in 2 different output, you loose 3dB on both rigs when used on the same band, this is normal and already known.... and 4 output would be 6dB, and so on.

It does the "job" like this, for a first prototype, it is not too bad. :-)

I'm seriously looking and working on a new design that would now include two signals source routing. The input will be filtered and pre-amplified to regain only the 3dB lost; but no more gain. And when transmitting, using a different "direct path" to avoid the RX filter/pre-amp with relays switching.

It is not too hard, but must take a little time to figure it out the best way.

I let you know about more experiment later... ;-)

Best 73.

 
On Monday, November 21, 2005, at 12:34PM, David N. <[hidden email]> wrote:

>Well It would be neat if you and Don went into making
>those or making kits then you could put me on the list
>to get one
>David KR4OW


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Re: RE: 2 radios, 1 antenna... finally a prototype

JEAN-FRANCOIS MENARD-3
Wow, I hope you are not in a hurry, because I think I found a  
solution for the "normal" attenuation today. I contacted DX  
Engeneering today, I waiting for a part from them and I will test my  
new "version 2" prototype as soon as I can receive the part.... I  
must design a new PCB, because I will now have 2 paths, one for RX  
and one for TX.

73


Le 05-11-21 à 19:25, Bill Harris a écrit :

> Please add my name to the kit list for the above.
> Carry on
> Bill_Harris-w7kxb
>
>

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