I? don't think a RX preamp is really needed. - 107dbm signal is clearly audible. However some 'digital hash' or artifacts could be buried by noise floor and this would be good. Being without BPF It should have high IMD figures, like the modern MMICs have.
Il 30/nov/2018 10:10, "Wayne Leake" <
wayneleake@...> ha scritto:
? A preamp can help on RX.
?But I suggest having a gain control.
?Start with a good antenna first.
?For the RX/TX LEDs, I have some RGBs that I will use the red and green. Have not figured out a use for the blue yet.
?I don't know if I will add a TX amp or not. I will be working with BITX40s and BITX20.
?If I need that much power, I can simply use my 706 MK II G.
?A good antenna made for the frequency in 8use is far better than a random tuned with a tuner.
?And I found out that adding 75 meter legs to a 40 meter antenna was like adding both a preamp and a linear. A heck of a lot of difference. For 75 meters, that is.
?YMMV
?Wayne WA2YNE
