RX antenna - single wire beverage KIT assembling
This revision is from 2018/01/14 20:25. You can Restore it.
rev.0.1 2/2017 by Jan OK2ZAW
Feeder BOX
- This box contains of transformer 450 Ohm to 50 or 75 Ohm and protections
- Part list
| PTC_F | PTC 5mm | piece 1 | mA PTC | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| GL | Neon lamp | piece 1 | V neon lamp | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Tr | Transformer | piece 1 | BN-73-6802 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
TRANSFORMERS winding - very important thing!
- for 50 ohm coax feed line : 2 turns on primar (coax) and 6 turns on secondar side (loop)
- for 75 ohm coax feed line : 2 turns on primar (coax) and 5 turns on secondar side (loop)
- Transformer should have 5 + 1 turns. So you wind 5 turns and 1more as a tap.
Common mode current choke
- Common mode current choke construction
- Wind 4 turns on one side than cross to another side of cores and wind rest turns.
Terminator BOX
- This box contains of Load resistors for the antenna and protections
