Hi, I'm Mike from RIDGID and I'm going to run through now how to get the most out the St305 line transmitter.
First choice, should always be direct connection, so to make a direct connection we take
the earth spike place that in the ground and we're going to light a lamp column here street lighting
column. Place one of the leads on the column itself the other lead to the ground spike, we're
going to use the earth path of the light column to make a circuit, so we'll turn the generator on.
And if it beeps we know we've got a circuit. The second choice for connection would be using the
induction clamp. So the induction clamp plugs in to the side of the St305 generator using the quarter
inch plug. We then take the clamp and put the clamp around a conductor, goes to ground somewhere so
there's a return path back to the clamp and we can make a circuit. Switch the generator on and
the generator will automatically default to the higher frequency in this case, 33 kilohertz and
the second light will show that we are using an induction method. On the clamp there's two green
lights, one shows that the clamp is closed and that there's a circuit made within the clamp
and then the second light shows that there's power to the clamp and it's getting is getting
a signal through it. The third connection method you have is what we call surface induction and
this is where we use, a coil that's inside the box to actually induce down into the ground and onto a
cable or pipe, so with the unit turned on here if we press this button on the end, that light comes
on to show we're now using an induction method and the generator has automatically gone up to
the higher frequency of 33 kilohertz and all we simply do is if we believe there's a cable
or pipe on the ground below, we lay the Box down in line here, with the lines on the, on the side
of the unit in line with where we we imagine the cable or pipe lies and what we do now is putting
signal down into the ground to induce onto the cable or pipe. So the St305 generator has three
frequencies and three power output levels. We've just turned it on... and it will default
to whatever the last setting was. So let's look at frequency we've got one kilohertz, 8 kilohertz and 33 kilohertz.
And if you just press the button here below the frequency, it cycles through those three
y3 frequencies well, lower frequency rooms and rungs so imagine a cable and you've made a direct
connection if you do that with the generator as a low frequency, that signals going to run and run
and run. The higher the frequency, the more it's going to sort of run out of steam, but you would
use high frequencies for things like induction connections, so when using the clamp or using the
coils that are in the generator itself. That's when you would use higher frequency, higher frequency
tends to be more have more energy to bounce around as well, so that's always one consideration the
higher you go up in the frequency, the more chance you have of what we call cross connection. We also
have multiple power, so a brief press of the power key will step through, three power levels
from low medium and high, simply putting putting the Jude the generator on high power it's going
to run the batteries down quicker. So if you can use a lower power output use the lower
output, you might need more power for a bigger obstacle and bigger conductor so a large pipe
that's in the ground is going to leach a lot of signal. So you might want to up the power level
when it's a big pipe leeching signal back to the, back to the generator so that's the three
outputs and that's the three frequencies and they're all on the rigid St305 transmitter.