"Noise" mode question

[Anonymous]

Using the XS
Click menu..........options...........noise........
It asks to adjust channel until least noise obtained.
Range 1 thru 11 to select from.
I'm not hearing any noise to try to adjust ???
Is this the same as noise cancel ???
When would you use this ??? settings 1-11

 

[Anonymous]

Mr Pulltabby,
The XS and XSII (as opposed to the S) have an automatic noise cancel feature. What this does is shift the transmitted frequency(s) by a small amount in 10 steps and listens for a little while at each step. It tries to pick the step that has the least amount of noise from electrical interference.
You can step through these frequency changes manually as you have discovered. If you are not hearing any noise then just turn up the sensitivity in manual until the unit becomes unstable.
Actually I need to try something. I'm not sure if in manual noise cancel you need to bump the sensitivity up to where you would hear noise or if you need to open up the discrimination, or does the machine do that automatically? Will let you know or if somebody else can try.
I have done manual noise cancel before and as you cycle through the channels there is sometimes a fairly pronounced difference between the channels in how much noise you hear. Whether it works better than the auto select I'm uncertain.
Chris

 

[Anonymous]

Tell you if you unit is unstable..Personally when I change areas hit the noise cancel button for about 30 seconds an unit is set automatically.I don't know why anyone would try to set their own as imagine the unit would do it more accurately. But Minelab gives us the choice of either..Main reason for manual noise cancel is when two Explorer buddies are hunting together and one can set it a bit different to avoid interference..Probably confusing to a newbie but those that have tried to hunt with two exact models know what I mean..other companies call it frequency change...works well also in competition hunts to avoid interference also...

 

[Anonymous]

Hit Noise cancel again when huntin with a buddy usin same machine ???
<img src="/metal/html/frown.gif" border=0 width=15 height=15 alt=""> (Though I don't hunt with someone else with an XS)
Could'nt I just Hit Noise cancel again instead of manually changin channels???(If I where with another user with an XS ) ??? Or would I havta change the frequency????
<img src="/metal/html/wink.gif" border=0 width=15 height=15 alt=""> I have never hunted in an organized seeded hunt and am thinking of doing so.
Would this be a time I would want to find a (manual freq) change ???
or still use noise cancel???
I may be getting confused as well as others may be <img src="/metal/html/confused.gif" border=0 width=15 height=22 alt=":?"> ???

 

[Anonymous]

Theoretically using the same machine as your buddy and using the automatic noise cancel you should be at the same noise cancel or pretty close which would cause interference. Very easy to check one and have the other one set manually different.I am a firm believer two like units working in an area far enough from each other even without crosstalk will still hamper each others abilities no matter how small or large would depend on the units.
Personally using an Explorer in an organized hunt is like hunting rabbits with a high powered rifle, what you need is a fast machine, that pinpoints quickly and has a frequency knob on it to quickly change frequencies as there may be units on the field of many frequencies and this type of unit will surely get the shallow targets. I have heard of hunts where targets are buried deeply and an Explorer would work in this type of hunt, but they are far and few between as many tatgets would be left in ground and idea is to get with the exception of a few all the targets. Using the noise cancel button is a possibilities but in a large hunt with so many different units a manual change would probably work better staying in a section of the field where you have the least interference. Most of thes hunts are perhaps an hour in duration but the majority of the targets are gone in the first 10-15 minutes...For now
leave it at a preset of 5 and when you hunt a new area just follow instructions from the manual and you should be good to go...as you don't hunt with an Explorer buddy or hunt in a planted hunt the above should serve you well until these situations arrive and you learn to use the unit more proficiently...

 

[Anonymous]

Pulltabby,
I hunt with a companion about half time. We both use Explorers. We start out close together and only one of us hits the Noise Cancel button. The one that does not hit the Noise Cancel just waits for the process to complete. The one that is waiting can hear the interference generated by the other machine while switching channels. When the process has been completed, then both machines are quite.
Just my experience on the matter.
Glenn

 

[Anonymous]

Glen my partner is a Whites man if I have one so I don't have the problem but really feel two same unit users hunting in the same area not close enough for crosstalk still in my estimation may or may not have the abilities of the units altered. Read some interesting stories on this matter..Anyway first has hit noise cancel do you hunt in your set noise cancel or do you noise cancel also. Seems to me if you hit noise cancel in the same area won't your noise cancel setting be similiar and cause problems..Makes one think doesn't it....

 

[Anonymous]

Dan,
The process that I described "seems" to work very well. I had never thought about your suggestion to let the first party perform a Noise Cancel operation. Then, after that has been completed, the 2nd party then does a Noise Cancel. I can see how the two stage Noise Cancel might even be better yet. An example of how this might work is as follows. This illustration assumes that there are no noise sources except the two Explorers.
#1 STARTING CONDITION
Say #A hunter is using channel 6 and #B hunter is also using channel 6. There will be a lot of interference.
#2 THE FIRST NOISE CANCEL OPERATION
If #A hunter does a Noise Cancel, he might end up at channel 1 (or channel 11) to get the best performance. At this point #B hunter is stil at channel 6. They are separated by 5 channels in either case.
#3 THE SECOND NOISE CANCEL OPERATION
If #B hunter does his own Noise Cancel, then he might end up on channel 11 (or channel 1). Now they have 10 channels of separation. This should produce better performance than if they stopped after #2
I do not claim any great expertise on how two hunters, using Explorers, might be having interference in such a manner that the interference is not noticeable, but still have the performance of their detector operation compromised. In my Engineering career I spent quite a bit of time designing what are called "correlation detectors" used in the space program. Generally speaking, this technique can almost completely reject and "crosstalk" from adjacent channels. Having reviewed the Minelab patents my conclusion is that they are using a correlation detector process. But, I could be completely wrong on this
Thanks for your comments and HH,
Glenn