The noise charts in chapter 8 are also interesting: http://www.navy-radio.com/manuals/0101-1xx/0101_113-08.pdf Chris When the going gets weird, the weird turn pro - Hunter S. Thompson
That's an intersting and simple design. I have only found a few specs for that 1NA217 device, but even those are impressive in terms of THD and input noise voltage. Since it is good up to 800 kHz it'
Since some are coloured, you can reasonably assume that they are powdered iron rather than ferrite as the ferrite manufacturers, particularly Fair-Rite and Ferronics, normally don't colour code thei
the I can see how this would be true if the preamp is connected to the "actual" ground, meaning the earth's surface, and the whip. But the connections from the ground and whip to the preamp would al
almost anything plus near of reduction <<SNIP>> You've done fairly well in reducing the noise that is conducted through your power supply lines, but the inband noise being induced into the antenna a
That is a very interesting approach to minimizing induced noise on the RX cable. What are the loss characteristics of the optical link, including the diode(s)? Chris Trask N7ZWY WDX3HLB Senior Membe
interest > > > > > > http://gmweb2.net/The%20FS%20Loop.htm > > > > > > It might also be unsupported hype !! to judge from the tone of the text !! > rather, scan it). My first > reaction (I might be
Just wait until you read the rest of his electromagnetic fantasies, such as the part where he claims that there is no magnetic field in a propagating EM wave. He's not the first one to create new EM
Using the augmentation gives you a similar input impedance at far less current. It gives you the opportunity to operate the transistor at it's best NF. Chris
It's about time that someone went to the trouble of doing this. I know that the people at Pixel took one part, but they are mum as to what they found. Chris Regards, Chris
You might want to add this to your list of suitable alternatives: http://www.home.earthlink.net/~christrask/Paper009.html Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net
That results in far higher distortion as the emitter signal voltages are not symmetrical, and you cannot force them to be. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.ne
Clifton Labs used a portion of that paper in their latest active monopole amplifier offering. They added a bipolar emitter follower stage between the JFET input and complementary output to further u
This amplifier provides better performance than either the Wellbrook or Pixel commercial products: http://www.home.earthlink.net/~christrask/Paper009.html Chris Trask N7ZWY / WDX3HLB Senior Member I
You may want to look at how I approached this in an active ferrite rod antenna that I designed some time ago: http://www.home.earthlink.net/~christrask/Paper006.html Chris Trask N7ZWY / WDX3HLB Seni
