[Elecraft] K3 Low Pass Filters

2012-05-08 Thread Pete Smith N4ZR
I'm planning to use my K3's RX antenna loop with a splitter to feed signals also to my QS1R. W4TV warned of the impact of the TX low-pass filters on received signals. From some crude experiments, it appears that the low-pass filters are grouped, rather than being strictly one per band. It

Re: [Elecraft] K3 Low Pass Filters

2012-05-08 Thread Pierfrancesco Caci
Pete == Pete Smith N4ZR n...@contesting.com writes: Pete From some crude experiments, it appears that the low-pass Pete filters are Pete grouped, rather than being strictly one per band. It looks Pete as if there Pete are LPFs for 1.8, 3.5, 7, 10+14, 18+21, 24+28,

Re: [Elecraft] K3 Low Pass Filters

2012-05-08 Thread Joe Subich, W4TV
Pete, It looks as if there are LPFs for 1.8, 3.5, 7, 10+14, 18+21, 24+28, and 50 MHz. I could not find confirmation of this in either the manual or the Cady book, but it makes sense to me. Can anyone confirm it? As I suggested previously, look in the schematics - page 4. You will see