I agree the BOGs are great for local crud reduction and in a suburban area
while the DX performance isn't great, the S/N impact just from ducking the
noisy switched power supplies, chargers, garbage low voltage lighting switching
matchbox transformers, PCs etc is significant. Even 100 ft wires on ground with
a small tuner can be a big boom to receiving.
73 and HNY to all. Pete W2PM
Sent from my iPad
On Dec 23, 2012, at 20:51, "Carl" <km1h@jeremy.mv.com> wrote:
>
> My own experience with 3 500' unidirectional BOGs over very poor ground is
> that a 220 Ohm resistor appears to be close to ideal for me. YMMV depending
> upon the ground and how close to the ground the BOG actually is. Mine mostly
> ride 3-6" above ground on low plants, twigs, etc. and thru the woods. These
> were installed to reduce crud pickup from neighbors in the belief that they
> are not as susceptible as the regular Beverages. Operation has shown them
> usually more beneficial crud reducers but not as good on real long haul DX.
>
> The 73-202 cores are wound transformer style and not unun autotransformer
> versions; the reason is to minimize common mode using the normal suggested
> seperation of antenna and feedline grounds
>
> I hope others share their observations.
>
> Carl
> KM1H
> _______________________________________________
> Stew Perry Topband Distance Challenge coming on December 29th.
_______________________________________________
Stew Perry Topband Distance Challenge coming on December 29th.
|