Frank, you can add different headphones on Radio#4 to the mix :)
Also on SSB try recordings of BY stations to make it more difficult. 73, Igor UA9CDC 31.03.2020 22:44, [email protected] пишет:
During the Coronavirus crisis many of us have much more time than usual for serious technical experimentation and testing. I'm building a transceiver test bed and I'll regularly report the progress of my test setup, procedures and results. The intent of my test bed is to document the transmitter and receiver performance of modern transceivers in the intense QRM environment encountered by contesters. My test bed will not be used to duplicate technical tests such as sensitivity and dynamic range that are well documented by other expert testers. I welcome constructive comments about my test bed, test procedures and results. Hopefully other technically inclined hams will develop similar test beds so we can compare our test procedures and results. I will share my initial test results prior to availability of the Elecraft K4. Test Description: Transceivers #1 and #2 will be QRM generators using two K3 transceivers with DVRs and stored Morse messages feeding Array Solutions Powermaster digital wattmeters and individual dummy loads. The QRM generator transceivers will use various frequencies very close to the frequency of transceiver #3. The DVRs and CW message memories in the QRM generator transceivers will store various voice and Morse messages which will change as the test procedures evolve. The power levels and frequencies of the QRM generator transceivers will be varied in accordance with written test procedures. Transceivers #3 and #4 will be the transceivers under test. Transceiver #3 will be the transmitter-under-test feeding an Array Solutions Powermaster digital wattmeter and dummy load. Initially they will be my K3 and FTdx5000 transceivers and my Heil and ModMic microphones. Transmitter #3 will generate call signs and contest exchanges to be transcribed by operators listening to transceiver #4. The frequencies, power level, callsigns, contest exchanges, microphones and operator controllable settings (e.g., compression and equalization) used by transceiver #3 will be varied in accordance with written test procedures. Transceiver #4 will be the receiver-under-test connected to a dummy load. Initially they will be my K3 and FTdx5000 transceivers. The callsigns and contest exchanges transmitted by transceiver #3 will not be known to the operator transcribing the audio heard from transceiver #4. A variety of operators will be invited to transcribe the callsigns and contest exchanges they hear on this transceiver. 73 Frank W3LPL ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
