Thread: The RF notch filter Dallas Lankford uses
View Single Post
  #2   Report Post  
Old July 31st 06, 04:58 PM posted to rec.radio.shortwave
dxAce dxAce is offline
external usenet poster
  
First recorded activity by RadioBanter: Jun 2006
Posts: 7,243
Default The RF notch filter Dallas Lankford uses


wrote:

I had wondered how DL managed to do the tests I have mentioned.
I followed some not, to me, obvious links and found this lihnk:
http://members.cox.net/dallaslankford/High_Performance_RF_Notch_Filter.pdf
I hope to assemble one and do some testing of my equipment.

Drake used an RF notch filter in the R7/A and if I recall also in some if not
all of their earlier amateur receivers.

Unfortunately they did not incorporate it into the R8 series of receivers.

In my opinion, RF notching is the preferred way to go, as it helps to eliminate
the offending signal from affecting the AGC adversely.

dxAce
Michigan
USA


Reply With QuoteReply With Quote