Same, but on sort of an isolated island, hi. Anyway, just now, mid-afternoon, my noise levels on the 20 meter band (using a little C3, 2 el. beam) and on the 40 meter band (using a tuner matched 132
Follow on note to the previous. Using the RX-340 which is callibrated down to about -140 dBm on the S meter, the noise DOES drop 10 or 11 dB when switching from a quiet frequency on the band to the B
Sinisa responded: 0045 UTC, or 2:45 pm Hawaii Standard Time Well, I am about 2 miles inland from the South facing coast of Kauai, and at an altitude of some 500 feet ASL. Antennas have a clear view o
Oops, I believe I know where at least 3 dB of signal has gone! My antenna connection to the RX-340 on which I measure the reported noise signals comes from the input to the Orion Sub rcvr. So, there
Ok, here we go with RX-340 S meter readings of the noise levels, well after sunset on this rather remote area of the Garden Island of Kauai. Why? To find out whether the Orion is sensitive enough! 1.
Ok, now several minutes later (0605UTC), and going back to the antenna sharing configuration with the Orion and RX-340, the noise on the 40 meter frequency has dropped the "expected" 3 dB to -115dBm,
Well, without Doug, the TT design team managed the RX-340 a very few years ago. Believe they have sold a bunch of those to "governments". Note, it also has adjustable AGC parameters and lots of DSP
Rick wrote, in part: explaining Link Coupled Tuners. You'll find everything you might need to know to either build up such a tuner, or to modify an existing EFJ kW Matchbox, see: http://www.cebik.com
Sinisa has written: In fact, for engineering use, the term "capture area" comes from the use of horns and parabolic reflectors for UHF and higher frequencies. If you have a look at the formulas for c
I have been asked again recently to compare these two for use by radio amateurs. They are sitting here side by side. In fact, using N4PY software, the 340 can play the part of the sub-rcvr for the Or
That is correct, to the Orion MAIN rcvr. My reference to the Orion sub rcvr was to the fact that with Carl's software, one "ignores" the sub rcvr within the Orion, and the RX-340 is used instead. To
Oh my goodness, NO, there is no favorable comparison at all! That is why I use the 340 as the Orion subrcvr via Carl's software. The benefit to the 340, first of all: 1. You would use the sub to fin
Yes, sure enough! The Threshold may be set via a slider at the left side of the "virtual" Orion control panel when using the N4PY control software. Very nice that way. This continuous control is the
Re: N4PY Orion control software: Bet Carl could do that in a moment, hi: S = 0 = -127 dBm = 0.1 uV S = 1 = -121 dBm = 0.2 uV S = 2 = -115 dBm = 0.4 uV S = 3 = -109 dBm = 0.8 uV S = 4 = -103 dBm = 1.6
Sinisa wrote, in part: Since the AGC within the Orion CANNOT be completely turned OFF, where should the Threshold be set when the above test is performed: high or very low?? Selecting the AGC OFF wit
Carl, N4PY, wrote, in part: Using my Force 12 C3, 2 elements on 10 meters, I cannot repeat what Carl has reported; however, with my BigIR vertical tuned to 10 meters I can ! In order to hear a noise
It's true, Doug has left Ten Tec, see: http://www.doug-smith.net/ Sorry in some ways to learn of this, but Doug's talents will do much for the EW/Signal Intelligence group at Rockwell/Collins. 73, Ji
I doubt if such would ever come from the Gov. Systems Div of Rockwell-Collins, and the Electronic Warfare/Signals Intelligence group at that, hi. I actually believe that Doug was also a "contract" e
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