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Title: The new standard in IMD.... Post by: KD6VXI on May 12, 2017, 12:16:49 AM Taken from amps.confesting.com
' For the last two weeks, I've been testing the new ANAN 8000DLE. Worst-case IMD at 200W is -75 dBc and close to -80 dBc on some bands. The PSDR mRx result was cross-checked with an Agilent N1996A spectrum analyzer. The combination of LDMOS, adaptive pre-distortion and a highly-isolated RF sample path back to the receiver's sampling input all contribute to this extraordinary level of transmitted IMD performance. Paul, W9AC ' Wow...... --Shane KD6VXI Title: Re: The new standard in IMD.... Post by: WBear2GCR on May 12, 2017, 09:59:54 AM Making everyone else look bad! >:(
::) Title: Re: The new standard in IMD.... Post by: KD6VXI on May 12, 2017, 10:44:57 AM Yeah, I agree. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
That was in reply to me posting about K1JJ and his 8877/4cx350 chain and it's - 55 db imd. A couple folks had brought up that is probably the best you can hope for, using 'modern' equipment and not going to predistortion. Will be interesting to see what a 3cx3k or 8877 pair would do wrapped into that system. And at 200 watts, you can actually drive a 3000! --Shane KD6VXI |