J
Jamie
- Jan 1, 1970
- 0
Talking from experience are we?warm'n'flat said:Dog piss tastes like American beer.
Talking from experience are we?warm'n'flat said:Dog piss tastes like American beer.
Dog piss tastes like American beer.
Perhaps I should qualify that. It certainly did when I was in FloridaTalking from experience are we?
Sorry, I haven't seen that one before.That one is a couple years old, and alread on the list.
You must still be on the sauce, you don't get it!warm'n'flat said:Perhaps I should qualify that. It certainly did when I was in Florida
20 years ago.
Perhaps I should qualify that. It certainly did when I was in Florida
20 years ago.
That one is a couple years old, and alread on the list.
You're one to talk about anyone not getting anything.
Care to repeat that rubbish? In English this time, please.Mouthy Mikey Picks and Chooses whom he wishes to mouth off at directly.
In other words, the motherfucking wuss is too pussified to banter with
real men. Even those he chooses to spat upon are far better than he.
Merely by the fact that he does it (insult) to those he has chosen to be
a fucking mouthy putz toward.
Good job, Micheal. NOT!
No chance. He's used up both of his neurons for this month. BTW, I
wonder who Micheal is?
^^^^^^Jeez, it doesn't get much more wussified than a spelling lame and the
third person dialog... again.
Bwuahahahahahhahahaha! You're a joke, T E R R E L L
Did I spell that one right, ASSWIPE?
Jim said:I was just struck with a thought... WHY does one need a remote with
more than 500' range?
OK, If you really need it, take a hint from the IED "designers" and
use a cellphone ;-)
Jim Thompson wrote:
Can't get into details but think "farm" or "golf course"
Paul said:From propagation point of view, those are quite a bit different
situations.
At 150 m and 433 MHz, the free space loss is less than 70 dB, so even
if the transmitter power is less than 10 mW (+10 dBm) to remain within
international standards, the receiver power would be -60 dBm, i.e. a
very generous signal at least compared to thermal noise from the
receiver itself or the surroundings.
However, this assumes free space propagation, which should not be too
hard to achieve with one antenna in a high place on a golf course.
Some light vegetation (bushes) should not cause much problems on 433
MHz.
However, golf courses are typically locating within a short driving
distance from population centers, so if the receiving antenna is in a
high place, it will pick a lot of signals from other non-licensed
devices in the band, making it impossible to predict a reliable
communication range. The situation with a single transmitter high up
and the receivers close to ground is easier, since the terrain will
somewhat block distant signals.
The situation on a farm in the middle of nowhere is quite different,
you usually do not have to worry about other emitters on the band, so
a receiver high up in the air should not suffer. However, large
concrete or metallic structures often found on a farm, will cast a
shadow, if you are just behind it.
You need to specify the environment more accurately or take the worst
case of both the farm and golf course example to determine the
reliable range in an unspecified environment.
That is what we'll have in most cases, some sort of building the signal
has to go through. Or bounce around and get there on a secondary path
with a lot less amplitude.
TheQuickBrownFox said:Use a diversity receiver and several strategically located antennas.