Re: Clamp meter
If you really want to test ground systems the ultimate is the AEMC 6416 and AEMC 6417. This can test amperage but also accurately tests ground resistance (without having to use the multiple stakes,
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Dan Woodie
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#183633
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Re: Motorola T1500 notch
Hi Skyler, The T1500 cavities always were used in BpBr "mode". See the documentation on this site. You could readily make the coupling loops and probes for this but, time is money. There is nothing
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Alan Beard
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#183632
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Re: The joys of ONAN power supplies in Motorola Quantar repeaters
This makes me want to put a fire retardant system in my IT room.? I hear there's a safer alternative to the old "Halon" systems. - Regards, Karl Shoemaker To contact me, please visit SRG's web site
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Karl Shoemaker
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#183631
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Re: Clamp meter
Joe, I should have checked that out since I have had a minor issue of getting the clamp in-between some of the close spaced wires at one site. I'm getting geared up to be able to measure my equipment
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Karl Shoemaker
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#183630
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Re: The joys of ONAN power supplies in Motorola Quantar repeaters
I had an Antec ATX supply that failed so badly it set a HDD on fire. Another Antec supply, while not causing visible damage, destroyed a motherboard. Why to this day if I spot an Antec supply in a
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Bob Dengler
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#183629
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Re: Clamp meter
The one that I referenced has 1mA resolution. Keep in mind that I said this one is SIMILAR to the one we used, and is only an example of what is available. Joe
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Joe
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#183628
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Re: Clamp meter
I have one of the Extech clamp meters and am very happy with it. It was recommended here by Eric Lemmon (SK) I used it when I was working for 48 volts DC current readings. I do have a Weston model 633
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John J. Riddell
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#183627
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Re: The joys of ONAN power supplies in Motorola Quantar repeaters
Didn't want to see that, but at least I have a spare :-)
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JeffBanke
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#183626
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Re: Clamp meter
Do they make a lower current DC version?
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Dean/K2WW
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#183625
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Motorola T1500 notch
I have six T1500 cavities and I thought it would be nice to make a duplexer but they are just bandpass. Anyone here have any info or way to acquire the notch addons for these? Maybe it¡¯s easier to
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Skyler Fennell
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#183624
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Re: The joys of ONAN power supplies in Motorola Quantar repeaters
Of course, the Motorola supply isn¡¯t immune from exploding either. This is a CPN1047:
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willpower1234 <radio5000@...>
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#183623
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Re: Clamp meter
Hello I am finding more and more these days that a high resolution clamp meter to be very useful and time saving when measuring earth leakage. The? uni-t ut211b fits my needs.
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Mainline
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#183622
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Re: The joys of ONAN power supplies in Motorola Quantar repeaters
It's not that bad. It just needs to be recharged with an extra-large can of Magic Smoke. Those early Onan PSUs are well-known for sometimes spectacular failures but I don't know that I have seen one
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Dan Woodie
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#183621
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Re: Clamp meter mistake -- watch for a balanced meter movement if analog
I share your pain. Not a clamp meter but taking reading in a very obstructed unit I had the analogue meter laying on it's side. I spent ages trying to adjust the unit to the specified settings. Other
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raysohst@...
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#183620
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Re: Clamp meter
For getting into confined spaces I find a clamp current transformer works better for me, what i have is a unit about 1x1.5x3" which outputs on a pair of 4mm sockets. 200A:200mA, the DMM can then be in
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raysohst@...
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#183619
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Re: Sinclair Cavities
I have the 6 cavity version and it works just fine at 130 Watts ------------------------------------------------------------------------------ President and CTO - Arcom Controllers Makers of repeater
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Ken Arck AH6LE
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#183618
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Re: Clamp meter
I only did a quick look at that one.? I am not familiar with the brand.? I did not see a CAT rating for it.? For home use and maybe up to the 240 volt line the China ones are probably ok.? I have
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Ralph Mowery
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#183617
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Re: Sinclair Cavities
I had a set just like those a long time ago. It was a Q202-G. Bob NO6B
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Bob Dengler
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#183616
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Clamp meter mistake -- watch for a balanced meter movement if analog
When looking at clamp meters, please don't make the mistake I did. Some don't have balanced meter movements. The first one I bought is great when the clamp and meter are horizontal. When vertical, the
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Mike Langner <mlangner@...>
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#183615
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Re: Clamp meter
We had purchased a mini clamp meter for use at the place I used to work for. It was similar to the one on Amazon "Extech 380950 Mini AC/DC 80A Clamp Meter" but I don't remember the brand. We found
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Joe
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#183614
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