[Top] [All Lists]

Re: Topband: Short Bogs

To: "Bruce" <>
Subject: Re: Topband: Short Bogs
From: Ashton Lee <>
Date: Mon, 31 Dec 2012 07:44:32 -0700
List-post: <">>
My BOG was a breakthrough after previously using just my inverted L on receive. 
Its 300 feet fed through a 300 Ohm transformer. The transformer is grounded, 
but not the far end.

In the last week I added a Wellbrook loop which earned its place as my primary 
receive antenna in the Stew Perry after a bunch of side by side comparisons. 
The loop is much higher gain. It can be rotated but I wasn't set up to do so. 
The loop has slightly more noise than the BOG but way less than the transmit 
antenna. I've used one before in a different location, and find these to be an 
under appreciated option.

On Dec 30, 2012, at 10:40 PM, "Bruce" <> wrote:

> BOG antenna, BOG wire.
> Yes right on. Not only are there many variables with the earth, but different 
> wire dielectrics are a big factor. 
> I have sold many BOG transformers, and received a lot of feedback.  There are 
> many different results, all but one was able to get a positive out come. That 
> one insisted on using a TV antenna pre-amplifier.  I gained a lot of insight. 
> One un-named customer was running his BOG across a highway late many nights. 
> One night a car came, out of nowhere, at high speed just before he got the 
> wire secured. It ripped the transformer wire out of his hand. He found it 
> about 200 yards down the road. He never found the termination, thought to be 
> attached to the car. Someone must have found it and wondered, What is this?  
> Now that is real determination to work 160 meter DX.
> Anyway,  I do not disagree with anyone with different BOG results. There are 
> way too many variables.
> 73
> Bruce-K1FZ
>  ----- Original Message ----- 
>  From: Guy Olinger K2AV 
>  To: Charlie Cunningham 
>  Cc: Bruce ; 
>  Sent: Sunday, December 30, 2012 5:53 PM
>  Subject: Re: Topband: Fw: Short Bogs
>  The characteristics of #12 THHN and such vary all over the map.  It is not 
> being made for use at RF.  The insulation not only changes the velocity 
> factor, but it also adds loss.  This too varies all over the map.  
>  Wireman has various wires with UV resistant black PE insulation.  That stuff 
> seems to be predictable and stable.  I personally don't know of any THHN with 
> PE insulation.  YMMV, of course.  Neither of the guys at Home Depot and Lowes 
> have any idea what I'm talking about if I mention PE insulation.  Apparently 
> plastic is plastic  :>).
>  73, Guy
> _______________________________________________
> Stew Perry Topband Distance Challenge coming on December 29th.

Stew Perry Topband Distance Challenge coming on December 29th.

<Prev in Thread] Current Thread [Next in Thread>