Re: Topband: Inverted L Question - Reply

2012-04-29 Thread chacuff

- Original Message - 
From: Lloyd Korb k8...@roadrunner.com
To: topband@contesting.com
Sent: Sunday, April 29, 2012 7:51 AM
Subject: Topband: Inverted L Question - Reply


 What is interesting to me is the fact that at times the L seems to have a
 different polarity than the 6BTV.  I can switch back and forth between the
 two antennas, on bands other than 160 meters, and see quite a difference 
 in
 signal strength.

cut

I have no way at this point to model antennas but I would guess on bands 
other than 160 you are seeing lobes in the radiation patern of the L/tower 
due to it being closer to and over a wavelength depending on what frequency 
it is being used at.  The 6BTV being more omni.  Both should still be 
vertical...  It's always nice to have more than one antenna option in a 
given situation.

Cecil
K5DL 

___
UR RST IS ... ... ..9 QSB QSB - hw? BK


Re: Topband: Inverted L Question - Reply

2012-04-29 Thread Herb Schoenbohm
The L most likely has a significant amount of horizontal component.  
It is not a bad antenna on 160 but neither is it a great antenna.  It is 
better than and inverted Vee most of the time but there are time like ar 
SS and SR when the horizontal antenna will work very well for DX.  That 
period of time is only a few minutes before and after those events.  For 
working someone up to 1000 miles away many times the horizontal antenna 
or one like you describe with a horizontal component will work better.

Herb, KV4FZ




On 4/29/2012 9:13 AM, chacuff wrote:
 - Original Message -
 From: Lloyd Korbk8...@roadrunner.com
 To:topband@contesting.com
 Sent: Sunday, April 29, 2012 7:51 AM
 Subject: Topband: Inverted L Question - Reply


 What is interesting to me is the fact that at times the L seems to have a
 different polarity than the 6BTV.  I can switch back and forth between the
 two antennas, on bands other than 160 meters, and see quite a difference
 in
 signal strength.
 cut

 I have no way at this point to model antennas but I would guess on bands
 other than 160 you are seeing lobes in the radiation patern of the L/tower
 due to it being closer to and over a wavelength depending on what frequency
 it is being used at.  The 6BTV being more omni.  Both should still be
 vertical...  It's always nice to have more than one antenna option in a
 given situation.

 Cecil
 K5DL

 ___
 UR RST IS ... ... ..9 QSB QSB - hw? BK

___
UR RST IS ... ... ..9 QSB QSB - hw? BK