Monte, if you are out there can you explain the TR Mode on the

[Tinfoil]

Whites Machines. I forgot which ones had it. Also what was it used for and where did it work best and where it would not work. I want to say the 6000's had itbut not sure. Something to do with mineralization. I know they use the TR down in FL on the beach, if I remember right. One guy down there makes a TR machine but they really cost a bunch. : : Thanks Jerry aka Tinfoil

 

[Monte]

people, but I would honestly classify those who successfully use the TR-Disc. mode as a "Detectorist" and not just an average "Hobbyist."

For 30+ years now we've had motion discriminate models available to us, and especially during the last 25 years we've had the pleasure of choosing between very slow-motion disrminators and more moderate-sweep models. The vast majority of those who've joined us in this great outdoor sport since the late 1980's have only owned and used a modern motion-based discriminator with a few exceptions.

Garrett's Scorpion Gold Stinger is one land-based model that has retained a "conventional" TR-Disc. mode, as well as the White's 5900/6000 Di series and the more recent 6000 Pro XL and renamed XL Pro models. Sadly, in some ways, those have now been out-of-production for a while.

The reason motion discriminators have taken over is simply because they are easy to operate, since most motion-based models are a turn-on-and-go design. They also help eliminate some of the effects caused by coil/ground presentation which lends itself to more pleasureable hunting.

Besides, the bulk of the detectorists do not have a clear understanding of basic TR operation, and then TR-Disc. operation, the issues caused by the lower operating frequencies of the modern models with a 'conventional' TR-Disc. mode, and I will assurredly say most lack the patience to deal with using it, too!

Okay, I reorganzed your questions to provide the following answers, which I will try to keep brief yet expain my answer to the question:

"Can you explain the TR Mode on Whites Machines?"... Well, let me explain BOTH the original 'TR mode as well as the 'traditional' or 'conventional'TR-Disc. mode. There are some differences which are associated with both of these in detector progression from "way back then" to "modern times."

For those of us who can recall the "good old days" of the late 1960's and very early 1970's, you basically had a choice of two principes of operation: BFO (Beat Frequency Oscillation or TR (Transmit/Receive ... also known as IB for Induction/Balance).

The primary difference was this:

BFO's were a fixed volume, frequency (pitch) change type of operation that required the operator tune for a 'proper' "motor boat" sort of audio. The user would listen for an increase in the motor-boating 'beats' as the pitch (not loudness) changed as a metal target was moved into the generated field.

TR's were a fixed frequency, loudness change type of operation that required the operator to tune the detector for a slight audio thresdhold sound. The user would listen for an increase in the volume or loudness as a metal target was moved into the electro-magnetic generated field.

It didn't take long for the savvy hobbyist to realize that it was much easier to hear the quick-response loudness change of the TR models and the trend showed their popularity in choice. Most of those earlier TR's operated at

 

[willy]

By this, I mean dense close-spaced trash.. the kind which causes masking even with a slow sweep detector. Was thinking that a TR mode, even at low frequencies, would be very useful, especially with a metered detector. Set the disc. to just knock out the ground and go by the meter readings. Figure that a person could literally hover over good targets, picking out the goodies from gruesome trash. Tried a bit of this with my X-100 and it seemed to work. Then again, I might just be fooling myself. ..Willy.

 

[Tinfoil]

Getting a 6000XL Pro if I can find a good one. I am a die hard Trash and Iron Hunter and I don't mind taking my time hunting in the trash and the Iron. Been doing it for 20 some odd years. Just never thought about the TR hunting and the 600XL Pro. Don't have much Mineralization down here and everything that is any good is 9 or 10+"s deep so you got to hunt the deep stuff right along with the iron and in the trash. Again thank you very much. I don't know how you keep that much stuff in your head. I am more of a what do I have to do to get the most out of a machine type of Detectorist. Hope the computer comes back all well and you can continue your great Posts. : . Jerry aka Tinfoil

 

[UK Brian]

What you are suggesting is the very reason that non motion IB/TR meter discriminators didn't die out in Europe where coins tend to be a lot smaller and much deeper.
The all metal primary search mode locates everything. The target is then centered and as no motion is required there is less likelyhood of target masking or miss identification caused by nearby objects.
The meter then gives ferrous/non-ferrous I.D. If the target is to deep for I.D. you then just take off a inch or two of soil until the coil is near enough for I.D. Foil can be identified by the ratio of meter deflection to audio output.

 

[willy]

What I was doing was to keep the coil height constant and slooowwly pick through the trash, barely moving the coil and watching the meter; much slower than even the slowest sweep motion disc. detector. It's a bit of a pain, but so is digging up thousands of trash objects at Forest Service campgrounds. ..Willy.