Not an ad; just a short product review. I recently bought a Nuwaves HILNAV1-C preamplifier that is customized for the 30 MHz to 1000 MHz range. (The standard HILNAV1 is half the price, but is rated only for 50 MHz to 1 GHz.) I characterized the gain and found that I got about 45 dB from 30 MHz to 100 MHz, with a nearly linear drop off to 35 dB at 1000 MHz. The great part is that all this gain also has a Noise Figure of less than 0.8 dB! The preamp will accept up to about -30 dBm before it starts saturating, and even 0 dBm doesn't cause spurious products. See http://www.nuwaves.com If you need a really hot preamp to help the sensitivity of you biconical or log periodic, this unit is a great choice. (I set mine up with a couple of Bias-T's, so that I could power the amp remotely through the coax and still place it at the antenna. I have some data sheets and construction photos if anyone is interested.) Total cost was $550 for the preamp and $150 for a couple of Mini Circuits Bias-T's, plus a couple of metal project boxes and a wall-wart from the junk pile. It beats the performance of my HP-8447A by 10 dB. Ed Price [email protected] <blocked::mailto:[email protected]> WB6WSN NARTE Certified EMC Engineer Electromagnetic Compatibility Lab Cubic Defense Applications San Diego, CA USA 858-505-2780 Military & Avionics EMC Is Our Specialty -
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