[Premium-Rx] RF-590H pre-selector

[Berndt Josef Wulf]

G'day Vic,

what is the part number of your pre-selector? I may be able to help you with a 
schematic.

Just bypass the filter to test the sensitivity without the preselector. The 
preselector has 6db insertion loss and you should notice an improvement of 
sensitity by that amount when bypassing it.

73, Berndt
VK5ABN

On Sunday 02 August 2009 04:49:02 solarhawk wrote:
> Hi Everyone,
>
> Maybe some on the list can help...
>
> I have a Harris RF-590H that seems less sensitive on the lower bands. I
> haven't tested this, it's just an opinion. It currently has a pre-selector
> in place, I think A19? I don't have the manual addendum for that option. I
> had read on some older posts from the Premium-RX archive that there was
> some debate as to if having it installed was worth it. Since I think I'm
> having sensitivity issues I wanted to take it out of line but am not sure
> how. I remember someone had a mod for using the Noise blanker as a switch
> for taking it out of line.without removing the module.
>
> Any comments or advice appreciated.
>
> Thanks,
> Vic
>
> ______________________________________________________________
> Premium-Rx mailing list
> Home: http://mailman.qth.net/mailman/listinfo/premium-rx
> Help Page: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Premium-Rx at mailman.qth.net
> Help Contact eMail:  paul at 8zo.com
> Home Page:  http://www.premium-rx.org/