UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Mike Brett · 20th Jul 2008, 10:44 am

Hello
Thanks for the reply. Yes I had a very good 11.000 MHz crystal filter so that is why I went for the higher IF. As I said it all works very well apart from the fact of having to use the antenna booster. As you know it has the problem of not only increasing the wanted signal but also the background noise. I did wonder if fitting a pre amplifier before the mixer might help, but it would not cure the main problem.
Regards Mike

20th Jul 2008, 10:44 am	#3
Mike Brett Retired Dormant Member Join Date: Dec 2005 Location: Wisbech, Cambridgeshire, UK. Posts: 452	Re: 80 meter superhet Hello Thanks for the reply. Yes I had a very good 11.000 MHz crystal filter so that is why I went for the higher IF. As I said it all works very well apart from the fact of having to use the antenna booster. As you know it has the problem of not only increasing the wanted signal but also the background noise. I did wonder if fitting a pre amplifier before the mixer might help, but it would not cure the main problem. Regards Mike