[PCR-1000] PCR-1000 Front end overload

Stewart Bryant stewart at g3ysx.org.uk
Mon Sep 6 12:48:32 EDT 2004


An RC filter would not work well at those frequencies. You could make 
yourself
a suitable LC filter, buy/build a preselector (an LC filter with an 
amplifier) or
use a tuned antenna such a loop antenna.

- Stewart G3YSX


Martin Francis wrote:

>Hi there Dave,
>
>I have a similar issue - I use my PCR to DX NDBs in the 198-520KHz band, 
>and without a lowpass filter I get far too much bleedthrough on the lower 
>frequencies.
>
>I'd like it if someone could suggest a way of having SEVERAL RC filter 
>shunts to kill each of my local offenders rather than attenuate the whole 
>band.
>
>Anyone know how to do this?
>
>
>Martin Francis <><
>=============================================================
> NDBList:   Mapmaster, Country Co-ordinator and NDBRNA Editor
> Location:  Richmond Hill, ON, CANADA / FN03GV
> Antenna:   Twin K9AY 140' loops on 300 feet of coax
> Receiver:  ICOM PCR1000 (2.8KHz filter) + DSP-599ZX
> Software:  NDBWebLog, WWSU, Argo, Goldwave, SkySweep, NDBRNA
> Beacons:   581 received since May 7, 2003
>
> Web Site:  http://www.classaxe.com/dx
> NDB Log:   http://www.classaxe.com/dx/ndb/log
> NDB Maps:  http://www.classaxe.com/dx/ndb/maps
> NDBRNA:    http://www.classaxe.com/dx/ndb/ndbrna
> NDBRE:     http://www.classaxe.com/dx/ndb/ndbre
>=============================================================
>
>
>-----Original Message-----
>From:	DB Nicholson [SMTP:d_nicholson at bellsouth.net]
>Sent:	Monday, September 06, 2004 12:10 PM
>To:	pcr-1000 at mailman.qth.net
>Subject:	[PCR-1000] PCR-1000 Front end overload
>
>I live less than 3 air miles from a 50kw AM station (WBT - 1110).  Front 
>end overload makes AM band reception useless.  I am using a longwire abt 
>30' above ground.  Radio is grounded using the house ground at power meter. 
> Someone once suggested using an RC filter to shunt 1110 to ground, but I'm 
>not sure what components to use, etc.  Any help would be appreciated!
>TIA,
>Dave
>Charlotte, NC
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>
>  
>



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