there can be several reasons for not seeing it on the second receiver. I don't know the aa-230pro, but you should be able to measure a high swr if you try to go through it on 20m or 15m, it should lo
on open stubs I recommend cutting back the center conductor and closing the shield over it, but of course not connected to it. this prevents the possibility of noise getting coupled on the shield fro
part of the problem is that different people use different types of stubs for different purposes. for instance you can use an open 1/2 wave stub as a band pass filter the same as a shorted 1/4 wave s
what kind of matching network does that use?? if it doesn't have something like a gamma or something else with one side connected to the boom then I wouldn't use a stub match like that. a general not
I have had to add bypass caps on some rotors also. many dc controlled rotors like the yaesu g series use diodes in the rotor across the stops microswitches to only allow rotation in the other directi
flying a balloon at the height of a proposed tower or windmill so neighbors can see how much it will affect their scenic views is a common requirement in this area for commercial stuff. usually requi
the g-2700 and g-2800 rotors have an extra feature the g-800 doesn't. and while they use the same plugs and CAN power each other, the g-800 and g-1000 series do not have the 'near the stop slowdown'
easier to put a small transmitter board with short antenna on the drone and just match the gps track with received signals sampled on the ground. the biggest problem is deciding how far out from the
correct, on the time scales and current level of lightning the ionization of the soil rules. I could see a saturation effect being possible for DC, perhaps in cases where you are using the soil retur
two things... I have never had a problem with nylocks used on the m2 antennas and have had some up for quite a few years now. second, where can I buy a bucket of that elbow grease, got a few things I
because of the rise time of lightning you will never get around the inductance unless you pave your property in copper... forget it. all grounds must be connected for power line safety, you don't wan
because lightning is not a 'small' event. when you think about lightning (and also rf related 'grounding') you have to throw away the concepts of resistors, capacitor, inductors, and anything else yo
what is the intended purpose of said ground screen not being connected to the tower. if you area going to shuntfeed the tower then you want the ground screen as big as you can make it and attached se
The Ohm's Law that we can all quote E=IR is an extremely simplified version that is only valid for "lumped models". and of course only for resistance. it must be expanded to include lumped capacitors
lightning may not even follow the path of 'least resistance', at least as you conceive it. connecting a low resistance wire to a ground rod does not mean that the lightning current will follow that w
if you are intending for it to assist reducing losses for raised radials then yes it must definitely be connected to the base of the tower, otherwise where will the current that it picks up go?? btw,
YOU MUST REMEMBER, lightning is not RF, its not DC, its not even AC... it is a fast rise time pulse, those can not be handled with normal impedance equations and lumped models... for instance a big f
agreed. sunset greyline to VK6 from New England if following the terminator would be south east but often signals are better from the east or even northeast perpendicular to the terminator. greyline
concrete or bentonite encased rods are used for power lines in places that its very hard to get a good ground. just how low a ground impedance (low frequency) are you looking for??? I was just wonder
if you really think you need to expend that much effort to get a good ground start reading with some of this list: https://www.google.com/?gws_rd=ssl#q=concrete+bentonite+mix+for+grounding Some inter