On 9/9/2015 4:04 AM, Andrew Ikin wrote:
Both amps, being single ended are likely to be susceptible to second order IMD from BC AM band Tx. Whether one would notice much difference with a amp. with a less than 1dB NF versus the above mentioned types
It would not be hard to use two HMC-580's in push pull with input and output transformers. The output transformer could be used to feed in the DC, eliminating the RF chokes. This should improve second order IMD by 20 to 40 dB, depending on how well matched the amplifiers are. It would also increase 3rd order intercept by 3 dB. Rick N6Rk _________________ Topband Reflector Archives - http://www.contesting.com/_topband
