Hey guys, Ben here, Geelong Cable Locations.
Hope you're all well.
Hope you're staying warm, wherever you are watching me today.
It's freezing out here.
Let me show you what we're up to.
So,
I'm out,
what they're going to be doing,
they're going to be doing some road works through here,
and they want us to locate where the asbestos water main is through here.
They actually want us to dig down with the hydro truck and expose it,
but before I bring the truck out, I want to come through,
I've come through with the locator,
with the radar, sorry.
Because I want to locate where it is.
if I can pinpoint where it is, it's going to be a lot quicker and easier to
pothole it, rather than
just trying to dig trenches trying to find it.
Anyway,
I often get guys,
forget about this job. This has nothing to do with
what I want to do this video for.
I often get guys asking me when I get the radar out,
saying, oh, what's the depth of something?
You've gone over it, can you give us the depth,
and often I've got to explain that, unless I've calibrated it
or unless I've gone through some checks, I can't give depth.
Depth,
yeah, sometimes it can be well out, when it comes to depth.
Compared to the locator, locator
within, sometimes it can be within half a meter, but yeah, anyway.
And what I want to do, I'll give you a real example now.
So I've already, as you can see, I've already gone through with the locator, with the radar,
and found the stuff, located the stuff.
The pink is the asbestos water main,
white is Telstra.
So let's run through yourself.
Grabbed it, let's just assume you grabbed it out of the car,
I've got a set-up, the general setup.
Again, with radar all depends on soil conditions.
The different soil conditions, different dielectric, it changes everywhere you go.
I've just got it set up just very standard, nothing special.
I'm going to run through,
and what do we got?
So, there's the asbestos water main just there,
keep coming through,
and there's the Telstra there.
Now, the asbestos water main is about 2 meters deep,
the Telstra is about 1.8,
oh, that one, no, 1.6 deep,
which normally would be no big deal,
but I thought, nah, I'd better double check that, better calibrate that.
So I've gone through, got the locator, connected the locator to the cable,
and gone through and located it.
And when I've located it, it says it's only 600 mm deep.
So, let's go through and calibrate the radar now.
Let's say, there's different ways of doing this, this is the way I like doing it,
because I'm calibrating on something that is real, that we know is here.
So I'm going to go through,
and tell it that the depth is not 1.57,
it is actually 600.
Just give us a sec, guys. I'm just going through now. Oops,
too busy looking at the camera, not watching what I'm doing.
So let's go at 630, close enough.
So enter.
Run setup.
No, I don't want to save it.
Okay, let's do this scan all over again,
and see what depth it tells me now.
So remember before I said it was 2 meters, oops,
so it was 2 meters deep for the water main.
Let's go again. All right.
So there's the water now, and this time it's,
yeah, between 800 and a meter.
So it's at about 900.
Let's see the Telstra.
And Telstra, yeah, is about between 5 and 8, so 7-6, something like that,
about 600 mm deep, which is what it is.
So, a big difference on the water.
So, yeah,
meter and something deep
Sorry guys, I know I'm interrupting the video.
Sorry about this.
Did anyone else just see that mistake I just made out there?
So when I first went over the water main, I said the water main was this deep.
So there's the water now, and this time it's, yeah, between 800 and a meter, so it's about 900.
But then when I pulled the radar back over, and I was talking to you about the Telstra,
and then I went back to the water again, I said the water main was this deep.
So yeah, the meter and something deep.
It's not a meter something deep. It's 900 deep.
We know that, because we saw it the first time.
What am I looking at the second time? What?
Yeah, I got distracted with the camera. Apologies guys.
So let's try that again.
So the water main is 900 deep, and the Telstra was 600 or something.
That's what it should have been, and originally, when we first went over, it was 2 meters.
Okay. Before I bring you back into the video though, let me show you the CAD file.
So, since
doing this video when I was out there, we've now been out there with the hydro excavator.
We've dug down, we've proven this stuff, we've surveyed it, we've given it to the client.
The job's all over,
and I can tell you what the real depths were. What we really found there.
So come over to this.
So, right there, look at that.
The depth of the water main that we dug down and found - 900 deep.
Exactly to the millimeter. How good is that?
And the Telstra over here - exactly 600 mm deep.
So,
the radar was spot on.
So how good is that?
Anyway, all right I'm going to shoot you back in to,
back to the old video.
Sorry for interrupting you again.
Back you go.
compared to before, we thought it was 2 meters deep.
What's that, a 700 mm difference, 800 mm difference.
Big, big difference,
and as I said, It's all just because we've calibrated it.
Sometimes you can't do this,
sometimes there are, as I said, there's other ways of doing it,
different radars do different calibrating as well,
but you do need to.
If you're not using us, if so,
if you're watching this, and you use a radar
make sure you are ground truth,
make sure you check what the depth is that you're giving out to customers.
If you use someone else to do the locating for you, do a radar work for you,
again, make sure they're doing this,
make sure they're not just getting out of the car, going over something, giving you a depth,
because sometimes it can be well out.
Sometimes it might not be,
but it's all just a chance,
and if you are getting a locator, you're not using someone for chance.
You are using someone, because you want them to tell you what the actual service is,
and where it is, and what the depth is.
if they can, and if, sometimes if you can't, then you tell them that you can't.
All right, guys, I'm freezing out here. I need to keep working, so I don't get cold.
I hope you're well. Any questions, leave a comment below.
Talk soon. Bye guys