• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Booty lots of info on tuned input circuits on the WWW.


 Basically a low "Q" can be compared to a filter.


 If you are using a 5KC filter in the radio it is going to receive 5KC wide of signal.


 Now select 2.4 KC filter (typical SSB filter) and it cuts the receive width in half.


 So compared to a antenna tuned input a higher Q puts the RF at the transmitted frequency into the antenna and basically attenuates the harmonics per say.  This is the reason the IMAX and A99 have the reputation as splatter sticks, the low Q matching network.


 You can also look at amplifier tuned input circuits, sort of the same as antenna tuned input circuits.