Electrical engineer- telemetry question.

[Paul Conway]

[Buddyw]

I sure don't have a good grasp of this concept, but having a Degree in Electronics you would think I should!! either way here is what little I do know. It's getting into logrithmic equations.. I quit math at alegebra! (I took two days of Calc.. and decided very quickly that that was going to hurt so I cut my lass)

Someone correct me if I"m wrong, I'll ask a guy I know to check my numbers.

DB is basically the gain of a signal.

Let's say for example your collar puts out 5 watts like a CB radio..This is not correct.. I think the output is allot less (in the range of 10milliWatts if I remember right).

Antenna's and distance would probably be the biggest power loss for the signals.

At (I was wrong last night on my numbers last night.. this is round two.. They could still be wrong !!)

-3db equals Half the power. 5 X 1/2 = 2.5Watts
-6db eguals 1/4 the power. 5 x 1/4 = 1.5 Watts
-9db equals 1/8 the power. 5 x 1/8 = 0.625 Watts
Etc. etc.

I'm assuming(you know what they say about assumptions!) the numbers you are reading are related what the box is able to amplify.. Meaning a smaller (larger negative number) would be better...

All the collars are regulated by the same power requirments, so what comes into play are the Antenna's used and the ability of the amplifier to amplify the correct signal.. While leaving the millions of other signals alone.

Antenna's are a huge part of the equation. I would rather have a good antenna, and a crappy box then a Great box with a Crappy antenna.

That's just a shot from what little I know about it. I would hope that someone with more experience could help answer some of this.

But trust me all that is out the window as soon as you let the dogs go!

[Paul Conway]

So for all we know about telemetry and all we state about telemetry there sure seems to be a lot we don't know (me included for sure) ???

thanks for your info Buddy. Paul Conway.

[matt c]