[1000mp] Roofing Filter

D. J. dalej2 at mac.com
Fri Mar 18 16:29:29 EST 2005


Just to make sure after I had installed the filter board I put my 
voltmeter on the two power leads and measured +5.  Without power to the 
amp I would think gain would be reduced quite a bit.  The roofing 
filter should give you more gain so that you'd have to turn 9-1 down a 
couple clicks.

Dale


On 18, Mar 2005, at 14:24, Bob Main wrote:

> Well I put in the roofing filter, NB mod and a 250 Hz filter.  I put 
> it all back together, plugged my Elecraft XG-1 to it and turned it and 
> the radio on.  Last week when I got the XG-1 the 50 uv signal gave me 
> exactly S9.  With the roofing filter in I got S5.  My 9-1 reading was 
> 13 and so I started increasing it.  After about 19 the reading stopped 
> climbing and never went above S7.  Any ideas?
>
> I've checked to make sure the two wires that I had to solder in were 
> not shorted to chassis ground or together.  I unplugged the coax going 
> to J2003 and plugged it into J1 of the roofing filter.  Then I took 
> the supplied coax and went from J2 of the roofing filter board back to 
> J2003.  So all that is right.
>
> Got any suggestions?
>
> Bob
> KB4CL
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