[linrad] Re: Winrad V0.90

[Giancarlo Moda <yahoo.com; i7swx@xxxxxxxxxxxxxxxx>]

Hi,

FST switches have quite n interesting bandwidth but
switching does not permit to work at 144 or even worst
at 432MHz.

FST3253 maybe OK up to 30 MHz then they may have
internal unbalanced switching. You should see the
conversion loss will increase and also the noise.

FST3125 (3.3V) have been tested OK up to 50 MHz in the
I7SWX 2T H-Mode Mixer with up and down conversion.

73

Gian
I7SWX


--- Richard Hosking <richardh@xxxxxxxxxxxx> wrote:

> Yes I dont know what the upper limit of those data
> swithches is, but it 
> sure wouldnt be 432 MHz. I will probably be looking
> at up 30 MHz max
> 
> Richard
> 
> m0eme Paul wrote:
> 
> > Thanks Richard I take it you are taking about HF
> here????? I wish to 
> > use it for eme on 432mhz
> >


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