Not the SPX25. You're thinking of an HDD.  This is what I'm working with:
https://www.youtube.com/watch?v=hteV8Xthxq4&ab_channel=Vermeer

On Wed, Dec 28, 2022 at 4:32 PM Chuck McCown <ch...@go-mtc.com> wrote:

> Most boring uses a sonde transmitter.
>
> *From:* Josh Luthman
> *Sent:* Wednesday, December 28, 2022 1:44 PM
> *To:* AnimalFarm Microwave Users Group
> *Cc:* Chuck McCown
> *Subject:* Re: [AFMUG] Underground Locating units
>
> The ViperMag is an underground cable locator.  I used it for our bore
> attachment on the SPX25.  Metal is metal is metal.
>
> On Wed, Dec 28, 2022 at 3:38 PM Chuck McCown via AF <af@af.afmug.com>
> wrote:
>
>> Drilling locators are a total different beast than underground cable
>> locators.
>>
>> *From:* Josh Luthman
>> *Sent:* Wednesday, December 28, 2022 12:31 PM
>> *To:* AnimalFarm Microwave Users Group
>> *Subject:* Re: [AFMUG] Underground Locating units
>>
>> Carl,
>>
>> Our favorite locator is the ViperMag.  I think it was ~3000 retail.  As
>> to its accuracy, based on my one time usage last week I spotted the drill
>> sticks 100% and got the distance within inches.  My locator tech says it's
>> 100x better than the old one when there's noise (nearby other utilities).
>>
>> On Tue, Dec 27, 2022 at 6:21 PM Carl Peterson <cpeter...@portnetworks.com>
>> wrote:
>>
>>> How about this one?  Not sure what the new price would be.
>>>
>>>
>>> https://www.ebay.com/itm/225308461851?hash=item34756e4b1b:g:1Q4AAOSwsQpityvJ&amdata=enc%3AAQAHAAAAoGDhdpMkHwHcr%2BvCGwtdhgoKuhWkl29e3dky%2FBRCjSbcavCSO%2FxS%2FOj3ur8IMQrLU9nTSS5jxh1tGbzExnZkLl0ByukyENiu4m%2BjhsDyyBTYdqpHctfm3wplh6OljUR5p2r52f0ADK56LGN4R3c3XaKY8Jiv9Z0pQI4qClIVyOcGYD3Us3yHVvj3gtrWqqaeKNhiHdquQ9vLEuuTiiRWQvY%3D%7Ctkp%3ABk9SR-TFtduqYQ
>>>
>>> On Tue, Dec 27, 2022 at 5:18 PM Chuck McCown via AF <af@af.afmug.com>
>>> wrote:
>>>
>>>>
>>>> https://www.ebay.com/itm/295441271797?hash=item44c9ac0bf5:g:FygAAOSwHUFjq0Fi&amdata=enc%3AAQAHAAAA8EoM%2BACrrWy8doADxOvuYO6McooUnEQT32vIgmMCHxSNW7AFx45Ldlayxo1UF19OgeMhNeiXhx6aeua%2FVkOuaMh276DpXIFBRYOW6ZIHNDHI28906bMAomYZI8WsZJ%2Bze0pJtR1BsN7p7rVxkOUgvBwHQnbPRMW2etIqpj%2FAebmujtKv6pJsoyFexvukHQPKXGZDJB0OxJBapGnHc89pM7aeZtYBRxXE87946w1wr1Dl%2BoKiZI4mbQaCcAV%2FnOr8eRwqRkoApcPdjSO%2B%2FwYN%2FIqi%2BZnoXwN6jDfU420OM07xHxOsQBd0U4rkjQanZcsb0Q%3D%3D%7Ctkp%3ABFBMovD-3aph
>>>>
>>>>
>>>> *From:* Carl Peterson
>>>> *Sent:* Tuesday, December 27, 2022 4:14 PM
>>>> *To:* AnimalFarm Microwave Users Group
>>>> *Subject:* Re: [AFMUG] Underground Locating units
>>>>
>>>> Thanks Chuck,
>>>>
>>>> That helps, I think.  I'm at the point where I just need to make a
>>>> decision but 4K isn't enough to make the decision I want to make.
>>>>
>>>> On Tue, Dec 27, 2022 at 5:07 PM Chuck McCown via AF <af@af.afmug.com>
>>>> wrote:
>>>>
>>>>> Most if not all of them locate the signal based on current flowing on
>>>>> a conductor.  So you put a signal on a trace wire or cable shield.  Ground
>>>>> the far end.  The transmitter is connected to the cable and a ground rod.
>>>>> That flow of signal sets up the magnetic field and that is what the 
>>>>> locator
>>>>> works off of.  If you have trace current then all of them will do a good
>>>>> job.  The type of soil doesn’t make much difference.  The super cheap ones
>>>>> will find it as easy and the super expensive units.  Finding a reliable
>>>>> depth is more difficult.   The only brand I have every used where I could
>>>>> trust the depth was a Metrotel.  But even the cheapest unit can find depth
>>>>> by locating a null, orienting the pick up coil at 45 degrees and then
>>>>> finding the null off to the side of the of the cable.  Distance from the
>>>>> center null to the side null is the depth.
>>>>>
>>>>> The higher the power the farther you can locate.  But that just means
>>>>> you don’t have to move the transmitter so much.  In my experience I am
>>>>> generally within a quarter mile of the transmitter or less and all of them
>>>>> will do that distance.
>>>>>
>>>>> Some of them will also passively locate 60 cycle power.  Some of them
>>>>> locate based on radio signals picked up by wires and pipes and
>>>>> re-radiated.  I have had limited success with that on high pressure gas.
>>>>>
>>>>> Many of them have an RF mode where you connect to some object to track
>>>>> but the far end is not grounded.  So you just have a capacitive coupling
>>>>> between the thing you want to locate and the earth.  Not much current 
>>>>> flows
>>>>> so you do not get much distance.  For example a fish tape down a plastic
>>>>> duct is located this way.  But you will only get dozens or perhaps 
>>>>> hundreds
>>>>> of feed if you are lucky.
>>>>>
>>>>> Multiple frequencies have their uses.  Older units were down in the
>>>>> audible range like 800 Hz.  You can go a very long way with those
>>>>> frequecies.  But they also bleed off to other cables and pipes.  Higher
>>>>> frequencies are better to get finer resolution but they do not transmit as
>>>>> far.  82 or 84KHz is a popular frequency.
>>>>>
>>>>> Some brands put a coded signal out so only their receiver can pick up
>>>>> the signal.  Rycom is one of those.
>>>>>
>>>>> *From:* Carl Peterson
>>>>> *Sent:* Tuesday, December 27, 2022 3:30 PM
>>>>> *To:* AnimalFarm Microwave Users Group
>>>>> *Subject:* Re: [AFMUG] Underground Locating units
>>>>>
>>>>> Thoughts on a used R7200 off of ebay vs something like a new Ridgid
>>>>> SR-24? Trying to do this with a 4K budget.  Is a locator either good or 
>>>>> bad
>>>>> or is there a middle ground where they don't work well.
>>>>>
>>>>> On Thu, Dec 8, 2022 at 3:30 PM Steve Jones <thatoneguyst...@gmail.com>
>>>>> wrote:
>>>>>
>>>>>> there  is also the vermeer lin of locators. massive option set, LM42
>>>>>> is pretty efficient and can find most things in the  ISP domain. SPX25 is
>>>>>> good for locating shallower thing. stuff like the 10x15 or 20x22 utility
>>>>>> locator are surprisingly accurate for it having to be pretty pinpoint. 
>>>>>> But
>>>>>> if you really want to be certain about finding the utilities on a smaller
>>>>>> ISP budget, youd want to look at Bobcat brand locators, those will find
>>>>>> everything.
>>>>>>
>>>>>> On Thu, Dec 8, 2022 at 3:17 PM Carl Peterson <
>>>>>> cpeter...@portnetworks.com> wrote:
>>>>>>
>>>>>>> Any consensus on locators?  We need to buy a new one too.  The only
>>>>>>> one I really know is the T5.  We don't do a ton of locates so it doesn't
>>>>>>> need to be too high end.
>>>>>>>
>>>>>>> On Fri, Dec 2, 2022 at 2:34 PM Jason McKemie <
>>>>>>> j.mcke...@veloxinetbroadband.com> wrote:
>>>>>>>
>>>>>>>> I'm looking at getting one of these:
>>>>>>>>
>>>>>>>>
>>>>>>>> https://www.ridgid.com/us/en/sr-24-line-locator-with-bluetooth-and-gps
>>>>>>>>
>>>>>>>>
>>>>>>>> On Fri, Dec 2, 2022 at 8:59 AM Nate Burke <n...@blastcomm.com>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> I'm looking to pickup a 2nd locating unit.  Without visiting a
>>>>>>>>> bunch of
>>>>>>>>> websites and wading through tech docs, does anyone have
>>>>>>>>> recommendations?  USIC around here uses a blue unit, but they're
>>>>>>>>> always
>>>>>>>>> so covered with spray paint I can't see the name/model.  We have
>>>>>>>>> an
>>>>>>>>> Amprobe AT-3500 today.  Looks like Amprobe has a newer model out,
>>>>>>>>> that's
>>>>>>>>> cheaper than the AT-3500
>>>>>>>>>
>>>>>>>>> Mainly need to locate either a tracer wire (alligator clips) or
>>>>>>>>> traceable fiber (Clamp)
>>>>>>>>>
>>>>>>>>> --
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>>>>>>>>> AF@af.afmug.com
>>>>>>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
>>>>>>>>>
>>>>>>>> --
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>>>>>>>> AF@af.afmug.com
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>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>>
>>>>>>> Carl Peterson
>>>>>>>
>>>>>>> *PORT NETWORKS*
>>>>>>>
>>>>>>> 401 E Pratt St, Ste 2553
>>>>>>>
>>>>>>> Baltimore, MD 21202
>>>>>>>
>>>>>>> (410) 637-3707
>>>>>>> --
>>>>>>> AF mailing list
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>>>>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
>>>>>>>
>>>>>> --
>>>>>> AF mailing list
>>>>>> AF@af.afmug.com
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>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> Carl Peterson
>>>>>
>>>>> *PORT NETWORKS*
>>>>>
>>>>> 401 E Pratt St, Ste 2553
>>>>>
>>>>> Baltimore, MD 21202
>>>>>
>>>>> (410) 637-3707
>>>>> ------------------------------
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>>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> Carl Peterson
>>>>
>>>> *PORT NETWORKS*
>>>>
>>>> 401 E Pratt St, Ste 2553
>>>>
>>>> Baltimore, MD 21202
>>>>
>>>> (410) 637-3707
>>>> ------------------------------
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>>>>
>>>
>>>
>>> --
>>>
>>> Carl Peterson
>>>
>>> *PORT NETWORKS*
>>>
>>> 401 E Pratt St, Ste 2553
>>>
>>> Baltimore, MD 21202
>>>
>>> (410) 637-3707
>>> --
>>> AF mailing list
>>> AF@af.afmug.com
>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
>>>
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