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) >>>>>> >>>>>> -- >>>>>> AF mailing list >>>>>> AF@af.afmug.com >>>>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>>>> >>>>> -- >>>>> AF mailing list >>>>> AF@af.afmug.com >>>>> 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 >>>> -- >>>> AF mailing list >>>> AF@af.afmug.com >>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>> >>> -- >>> AF mailing list >>> AF@af.afmug.com >>> 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 >> ------------------------------ >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> -- >> AF mailing list >> AF@af.afmug.com >> 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 > > ------------------------------ > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > 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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