W0IVJ's recent post to this reflector coincidently provided links to products I was in the process of installing here. I promised an update after I had a chance to try these products in the field. Se
What is it about certain reflectors that totally destroys formatting of the original note, regardless of whether they are sent in HTML or plain text? These paragraphs left here nice and neat and arri
That's what I did with a neighbor across the street and heated water dish for a dog. It cost me $50 but I got the noise maker in my garage now and plan to dissect it and take a couple pictures. Since
Not on my email client, looked great here... Set your wrap to 72 or greater. -- 73's, and thanks, Dave For software/hardware reviews see: http://www.nk7z.net For MixW support see: https://groups.yah
Larry, Thank you so much for this information. I will suggest our local grow suppliers use these lights... -- 73's, and thanks, Dave For software/hardware reviews see: http://www.nk7z.net For MixW s
I have seen filters for both the load and lamp side, so you may need to try both. I had thought it was on the Hydrofarm site, but I don't see the load and lamp filters listed. I think I ordered some,
This is the input/output filter you may be thinking of: http://growershouse.com/nanolux-rf-filter-set-reduce-rf-interference At this point I don't think my neighbor wants to do any additional experim
Hi Ed, In my experience, conventional filters on the line side are less effective (often ineffective) if the mechanism is common mode. Remember that the definition of common mode for us is very diffe
Hi Jim, My experience has been similar to yours. When I was developing my ballast filter, I not only found that the filtering was more effective on the lamp side, but I could gain another 10 dB by no
While I understand your intent, I don't agree with your execution. The problem is one of safety. The purpose of the Green wire in electrical systems is to blow a fuse or breaker in the event of a fau
Jim, I respectfully disagree. The choke in the green wire and the common mode choke both are 300uH. A short circuit current between the hot and the green wire would pass through both chokes in series
It will be very interesting to see the results of your tests Ed... You guys do good work, thanks for your efforts in all of this... -- 73's, and thanks, Dave For software/hardware reviews see: http:
On Mon,2/1/2016 1:19 PM, Tom Thompson wrote: I respectfully disagree. The choke in the green wire and the common mode choke both are 300uH. A short circuit current between the hot and the green wire
I respectfully disagree. GFI isn't intended to prevent a shock: it's intended to prevent death by electrocution. I suspect they do that admirably even with 600 uH total inductance split over two legs
Jim, This choke is on the *Lamp *side of the ballast, not on the *Line *side, so it is unclear what a short circuit among any of the wires on the Lamp side will do. It largely depends on the ballast
Author: "Donald W. Kane via RFI" <rfi@contesting.com>
Date: Mon, 1 Feb 2016 22:50:53 -0500
Just a point of information...a fuse or circuit breaker will NOT and is not intended to prevent electrical shock. Ground Fault Circuit Interrupter protection will! Fuses, breakers and other OCPD's ar
That is WRONG. Ground Fault Circuit Interrupter protection will! GFCI's protect against a very different mechanism, namely leakage current. GFCI's sample current in the phase (hot) and neutral conduc
A GFCI will protect against a shock that would result from the hot wire conducting current to the ground conductor or external ground, but it will not protect against a shock from the hot to the neut
I did an LTSpice simulation of switching 120 volts through a 600 uH inductor into an 8 ohm load. The inductor delays 30 amps of current through the load by 600 microseconds and 15 amps by 200 microse
Yes, that's it, and I do have a set on order. If any of you have a cooperative neighbor, let me know and we can get you to try the filters. If they work, you can keep them. Most growers have more tha