I have just uploaded Rob's report of his experience using the newest FLEX Radio to my web site. See: http://www.dj0ip.de/transceivers/sherwood-xcvr-tests/flex-6x00/ 73 - Rick, DJ0IP (Nr. Frankfurt am
Is it just those 6 paragraphs? He says virtually nothing about his experience with the radio. 73, Barry N1EU _______________________________________________ TenTec mailing list TenTec@contesting.com
AND the transmitter Spectra screen shots for all bands (at the bottom) 73 - Rick, DJ0IP (Nr. Frankfurt am Main) Is it just those 6 paragraphs? He says virtually nothing about his experience with the
VERY nasty IM -- run this thing into an amp and you're going to make a lot of enemies! 73, Jim K9YC _______________________________________________ TenTec mailing list TenTec@contesting.com http://li
Jim, it is nasty compared to a Collins 32S3 transmitter and to radios with 50v transistors, but compared to most radios shipping today with 12v transistors, it seems to be average. Which is why I hav
Yes, and it looks to me that some of the IM measurements do not meet current FCC requirements. I wonder who and how the certification measurements were conducted. Of course I'm sure these aren't the
I get nothing but unsolicited glowing audio reports on my Flex 6500. And in the simple test I did comparing transmit noise generated on a band, it was at least 30 db less than my Omni VII. Carl Mores
Carl, I'm wondering what the FLEX 6x00 IM looks like in a three or more transmitter environment. During my working years I often was confronted with A+B+C, A+B-C, ..., etc., TX frequencies mixing in
I too found that I got great audio or great signal reports with one of my radios. Those glowing audio reports are "on frequency" reports. I looked at the real output of a radio on my desk and saw all
Author: "R. Eric Sluder - W9WLW via TenTec" <tentec@contesting.com>
Date: Wed, 23 Apr 2014 21:10:45 -0400
Bob, On that current production brand name model you are referring to must be what a fella was using one night driving a linear on 160 M and QRMing us on 80 meters. The Op came on our freq later and
Bob, I rarely quote an entire email, but your post says so many important things, and says them so well, that I want to emphasize them. I have an Elecraft P3, which is a very nice, calibrated spectru
Not an argument... but a question: How do we know it is the transceiver and not the amp in a given case? Reason for asking, is I anticipate the transceiver makers blaming the amp market for it. Is th
Jim, I agree. Advertising dollars is the reason. We have the same problem with both of our German language magazines over here. I had one of the testers for CQDL magazine tell me on the phone that if
On the air, you can't tell, but the operator is responsible for meeting FCC Rules. To find the cause, we look at the spectra at the output of the rig, which is what Rob Sherwood and ARRL are testing.
It's also a big deal to those who must coexist on the same band with those trash generators. When I'm calling a guy with 1.5kW and 3 elements at 120 ft that I hear over S9 and he CQs in my face, it's
I would say the 6700 is better than average. Most radios are lucky to be -30 dBc. Many are somewhat less than that. Of course the numbers change from one band to another. One of my IC-781s is 34 dBc
Carl et al; In the face of my earlier post, I certainly can agree. With technology moving forward as it has, notable attention has been given to receiver performance while leaving the transmitter per
Well it can be either or both. Certainly the cleanest amp will only amplify what is provided to its input. It typically won't get any cleaner. Now take an amp that has IMD issues or one that is tuned
The OpenHPSDR folks have achieved 20dB improvement in IMD on their DDC/DUC rigs via dsp techniques: http://www.n9vv.com/Images/Apache-Labs/PureSignal.pdf 73, Barry N1EU ______________________________
I feel that there is more to this problem than what has been discussed thus far. Yes, we can make an amp cleaner, and, depending upon how much the consumer wants to pay, completely clean, at least en