Re: [aprsisce] Re: Crop Circles? NOT!
- On Tue, Oct 2, 2012 at 3:21 PM, Lynn W Deffenbaugh (Mr) <kj4erj@...> wrote:
>> A non-reception report should equate to at least the same distance as aUsing an S-Units value of 1 for a non-reception report would be better
>> signal strength of 1.
> Ok, so if I calculate the non-reception (0 S-units) range the same as a
> signal strength of 1, I'll get close enough?
>> The routines used to generate PHG circles should be pretty similar to
>> the DFS reports.
>> PHG uses Output Power, HAAT, Antenna Gain and Directivity to create a circle.
>> DFS uses Input Signal Level, HAAT, Antenna Gain, Directivity to create a circle.
> Yes, the only difference in the calculation is where the power/s-units
> go. One is power divided by 10 and the other is 10 divided by S units
> which is why zero s-units is totally not a good idea.
> I'm a software engineer, not an RF engineer. If I use 1 for the s-units
> in the range calculation for a non-reception (zero) report, I'll be
> good, right? A simple "yes" or "no" (and a note to that effect in the
> Wiki) would be appreciated.
than what we have now. In reality, the non-reception area should be
bigger than the S1 reception area, but making them the same is close
What about splitting the difference between S1 and S0? S0.5 or such?
Just a thought...
To keep you happy though...
PS You missed a good chance at a meme from way back with this:
> I'm a software engineer, not an RF engineer.It should have been "Dammit Jim, I'm a doctor, not an RF engineer!"