Search found 2 matches

by SandB
Sat Feb 03, 2018 9:10 pm
Forum: Antennas
Topic: My handmade magnetic loop antenna
Replies: 1
Views: 3774

Re: My handmade magnetic loop antenna

Did some experiments with simulator. It seems its better to add 1K resistors in the base of follower cascade to improve amp's stability almost without affecting gain (it became less by 0.2db). So, schematics archive updated with new principal and layout. Old layout can be easily 'updated in hardware...
by SandB
Mon Jan 29, 2018 12:33 am
Forum: Antennas
Topic: My handmade magnetic loop antenna
Replies: 1
Views: 3774

My handmade magnetic loop antenna

Hi, want to share details of my magnetic loop antenna with preamp I created to be used with RTL's direct sampling. So, antenna itself represents as handmade on-PCB winding made of two-side-foiled fiberglass size of 30x40 cm. Both 'windings' connected in the middle and thus winded to 'continue' each ...