Joe,
All data is available at 50ft, 100ft etc. There is not much significant
difference thats smoke and mirrors. The reason to show 100ft was taking into
account an average ham shack with a coax run. Do you think there will be a
significant difference in swr between 100ft and 50ft? Ot do you think that our
coax has so much loss that we don’t see swr? Not sure of your point. If
measured swr at the feed point is 1.28:1, then the measured swr at 100ft will
be approx 1.2:1 using RG213 as a coax.
The goal was to show a freespace design vs actual measured for the average ham
on a simple page. If someone needs more details, they can always ask in an
email through the website.
Thanks,
Ken
On Nov 27, 2014, at 2:12 PM, Joe Subich, W4TV <lists@subich.com> wrote:
> The swr curves for this antenna assembled out of the box at 36ft is
> presented here .. http://jkantennas.com/navassa-5-data.html
If the antenna is at 36 feet, why are you using 100 feet of coax for
the measurement? Why not use 50 feet or calibrate out the losses and
present true "at the antenna" measurements?
73,
... Joe, W4TV
On 2014-11-27 12:34 PM, Ken Garg wrote:
> Happy Thanksgiving all !!
> A good friend alerted me to a posting by K9OM. His post starts as follows
> ..”Correct me if I’m wrong …”. Well, Dick you are WRONG.
> The JK Navassa-5 comes pre-drilled, pre-cuts tips from the factory. The user
> just needs to assemble the antenna. These antennas are made of the best
> quality hardware and rated heavy-duty. There are many other quality
> manufacturers in the Yagi antenna space and the Hams are left to some good
> choices. If you like the JK construction with machined saddles, and quality
> hardware, including the “mast plate" all available for $1185 compared to
> others, then you will buy this antenna. The JK construction and mechanical
> robustness speaks for itself and folks that have it will speak to it. The swr
> curves for this antenna assembled out of the box at 36ft is presented here ..
> http://jkantennas.com/navassa-5-data.html
>
>
>
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