Features:
- 1:49/49:1 long-line dedicated balun

The main parameters:
1. The transformation ratio is 1:49
2. Input impedance: 50 ohms (unbalanced)
3. Output impedance: 2,450 ohms (unbalanced) suitable for long-wave short-wave antennas
4. Frequency range: 7/14/21/28MHz
5. Standing wave: less than 1.5
6. Power resistance: 100w (maximum 150w, SSB, AM, FM, CW)
7. Dimensions: outer diameter 50x130mm
8. Weight: 300 grams
9. Comes with epoxy resin plate, comes with 304 stainless steel lifting ring, and comes with a copper nose for the vibrator, which is convenient for users. The other terminal of the balun can be left floating.
10. Balun is already waterproof, and users only need to waterproof between the SO239 and the cable connector.