On the transmit side, I can usually work anything I can hear by having a 1000
watt signal
versus a 100 watt signal. That more than makes up for the lost 1.2 dB from
using that terrible
G5RV.
Then on the receive side I can make up a lot by the use of a modern NR system
and two
preamps to dig out weak signals, OR by having the alterbnative use of a
vertical versus a
horizontal antenna.
I am not worried about this theoretical 1.2 dB loss. When there are other more
important
factors such as a small lot, or aesthetic requirements, then for many of us a
G5RV can be
the best compromise. I have the newer W8AMZ designed G5RV, which has glowing
reviews
and I am not at all worried about deplying it. After much study, I believe it
is the best solution
for my particular environment.
YMMV
73 de AF4K
On 27 Apr 2015 at 21:46, Jim Brown wrote:
> On Mon,4/27/2015 1:56 PM, Bry Carling wrote:
> > Can you hear a difference of 1.2 dB on the other end?
>
> If the signal is very weak, or at the edge of the noise, the answer is
> YES. It can be the difference between no copy and rough copy that's
> enough to make the QSO. AND -- there are many changes we can make to
> our antennas to get another dB or two. For heights below a half
> wavelength, 5 ft of added height on 40M, or 10 ft on 80M, is good for
> 0.9 dB.
>
> > That's about one fifth of an S unit.
>
> While 6 dB is considered by most to be one S-unit, the 3-4 JA radios
> I've measured by cranking down a calibrated HP generator show that
> they're typically more like 2-3 dB per S-unit below about S6.
>
> 73, Jim K9YC
>
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