[TowerTalk] G5RV vs 40M dipole

[Bry Carling AF4K]

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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