[Premium-Rx] Broad Bandwidth HF RX Antenna

[Mark Donaldson]

Well it looks like this thread has finally died down, I would like to thank you all for your input on my request for broad bandwidth HF antennas ideas. In a previous job I visited quite a few National Guard facilities and they were all using the B&W T2FD for HF communications. This is what originally got me interested in this antenna for band cruising. I really don't need an antenna that eaks out the last bit of performance for HF receiving purposes due to the high noise floor on the HF bands. I also saw a web site that did extensive modeling of the T2FD and if anything this scared me away from the idea of using it once I saw the analysis, however we all know that what a computer predicts and real world results are often quite different, this is why your input was so important to me. I also like the antenna idea that Al mentioned and to take it one step further I and probably most of you have seen the broadband dipole idea where a separate dipole is cut for each frequency band and they are all attached to a common feed point. My question is has anybody tried this out and how did you like, also has anybody modeled it and what did the feed point impedance look like over frequency? Finally thanks for bringing up the NVIS antenna, it reminded me that I have one packed away somewhere, I think I'll set it up and see how well it works, even if it is a high angle antenna it might work out well for skywave.
 
Mark