[BC] FCC Approves proposed AM MoM Rules

[W2XJ]

You walk it in relative to what? Different people with different FIMs? 
That leaves the door open for errors. To me that is just sloppy 
engineering. Ratios take field conditions out of the equation. That way 
you know what the pattern is and that something in the filed is either 
re-radiating or the monitor point is bad. If the two are separated, the 
real problem can be addressed rather than making some unknown object 
part of the array. It may be a case that something needs to be detuned 
or just that the measurement point needs to be moved.

That being said, there is nothing wrong with having someone with an FIM 
on a radio while you switch from omni to the pattern being adjusted.



Dana Puopolo wrote:
> Or get a few people out in the field with meters and cell phones and 'walk in'
> the array. I've done this numerous times.
> 
> ------ Original Message ------
> Received: Sun, 28 Sep 2008 12:49:37 PM EDT
> From: W2XJ <W2XJ at nyc.rr.com>
> 
> 
> The best way to tune an array if you are doing it by FIM is to set ratio 
> points. Drive stakes in a perimeter of 1 KM to 1 mile around the array 
> every 10 degrees or so. Do an omni proof for those locations and then 
> while tuning measure the ratio. Once those look good, run the necessary 
> radials.
> 
> 
> 
> 
> 
>