--- In ultralightdx@..., "rabej_de" <rabej_de@...> wrote:

Hi, list!

Yesterday I built my first FSL using a 150 mm dia. Styrofoam former, 23 ferrite bars, 100x20x3, permeability 400, 3 layers of bubble wrap and 55 turns of 100/44 litz wire = 1615 uH.
I connected it to a 3-section 12 - 460 pF var. cap. with 2 sections in parallel.
Pictures of it can be found here : http://www.flickr.com/photos/61090953@N06/sets/72157626359000212/

I only had time to do some qick in-shack tests using my Tecsun PL-380 and I must admit that I am a bit disappointed.
Yes, the noise level increases when the FSL is tuned exactly but I was not able to hear more NDBs than without the FSL.
Maybe this is due to the high noise level indoors with PCs and TVs running etc. - I have to check that.

Any other advise or hint as to what may have gone wrong?

73s

Joachim Rabe

-----Original Message-----
From: rabej_de <rabej_de@...>
To: ultralightdx <ultralightdx@...>
Sent: Mon, Mar 28, 2011 1:56 am
Subject: [ultralightdx] First FSL

Hello Joachim,

Congratulations on your successful FSL project, and your video is quite
impressive.

Like Steve says, the Longwave FSL's work better oudoors, away from
house wiring and computer noise. When the weather (and LW propagation)
is good, I'm sure that you will have a lot of fun chasing NDB's
outdoors with your new FSL antenna.

73, Gary DeBock (in Puyallup, WA, USA)



-----Original Message-----
From: rabej_de <rabej_de@...>
To: ultralightdx <ultralightdx@...>
Sent: Mon, Mar 28, 2011 1:56 am
Subject: [ultralightdx] First FSL

 
Hi, list!

For anybody who might be interested I've added a short movie of my
first indoor-test to my Flickr-account :
http://www.flickr.com/photos/61090953@N06/sets/72157626359000212/

73s

Joachim Rabe

--- In ultralightdx@..., "rabej_de" <rabej_de@...>
wrote:

Hi, list!

Yesterday I built my first FSL using a 150 mm dia. Styrofoam

former, 23 ferrite bars, 100x20x3, permeability 400, 3 layers of bubble
wrap and 55 turns of 100/44 litz wire = 1615 uH.

I connected it to a 3-section 12 - 460 pF var. cap. with 2

sections in parallel.

Pictures of it can be found here :

http://www.flickr.com/photos/61090953@N06/sets/72157626359000212/

I only had time to do some qick in-shack tests using my Tecsun

PL-380 and I must admit that I am a bit disappointed.

Yes, the noise level increases when the FSL is tuned exactly but I

was not able to hear more NDBs than without the FSL.

Maybe this is due to the high noise level indoors with PCs and TVs

running etc. - I have to check that.

Any other advise or hint as to what may have gone wrong?

&gt;

73s

Joachim Rabe