K6TU announces Cognitive Processor Bus Interface for the FlexRadio 6700
Woodside, California: November 18th, 2014: K6TU is proud to announce the immediate availability of the Cognitive Processor Bus Interface (CPBI) for the FlexRadio 6700. The CPBI enables faster QSO rates in contests by continually adapting to shifting band conditions by interfacing to the K6TU WetWare Neural Processor. Signals are spatially separated instantly in the Neural Processor allowing quicker extraction of callsigns and contest exchange data.
The CPBI and Neural Processor also aid pile up management by separating multiple calling stations clearly and quickly, cutting down the number of repeats or fills required to extract a complete callsign.
Designed for the discerning contesters and expert operator, the CPBI improves contest rate, reduces fatigue, increases motivation and moves the fun factor into warp drive!
Further information can be found on the K6TU blog.
For pricing information, please contact K6TU directly.
Being real estate challenged with only 1/2 Acre and a large SteppIR MonstIR dominating the lot, I cannot achieve meaningful horizontal separation
So Stu has inspired me to get a vertical installed so that i can get Polarization Diversity.
There is an excellent writeup by W8JI on the whole topic at w8ji.com/polarization_and_diversity_htm
I recommend jumping down to the section entitled "Diversity Receivers and Reception". A significant quote is "To be effective, signals cannot just be directly mixed either at audio, IF or radio frequencies." He achieved the stereo diversity by phase locking two separate receivers, heavily modified Drake R4C's, even to the point that the crystal filters were hand selected for equal group delay over the filter passband. At the time of article, Tom Rauch wrote "I currently use an Elecraft K# since it is the only system that phase-locks two identical receivers..." Today, with the Flex 6700 and perhaps also with the Flex 5000 (I don't know that the two receivers are phase locked) we have similar capabilities. Are the results worth the effort? He says "The difference can be worth as much as a signall being nearly readability 5 in stereo to readabillity 2 without."
This psychoacoustic soundstage cannot be achieved through phase shifting of the same antenna and adding to the opposite ear. Two separate antennas with either different polarizations H and V or if with the same polarization separated by 2 lambda or more provide the RF signals required.
Finally, Tom has two sound files that help you hear what to listen for when testing for diversity capability.
Here's a real world example of diversity receive at work. I've captured the signal of a station in Hawaii, NH7O, that I just completed an 80 meter QSO with. He was in the noise and barely leaves a trace in the waterfall but with DIV turned on we were able to have a readable exchange. The signal is so hard to see that I placed a yellow circle around it. BTW my QTH is northeast SC, grid EM84RQ. I was using a Pixeloop on slice A antenna RXA. Slice B (on second SCU) used an inverted L (50 ftvertical section + 95 ft horizontal section sloping upward to 65 ft) antenna ANT1. Slice C used ANT1 on transmit. 1000 watts output power RST exchanged 449.