1:49 Balun 200W Impedance Transformer Shortwave Antenna

1:49 Balun 200W Impedance Transformer Shortwave Antenna Beschrijving

1:49 Balun 200W Impedance Transformer Shortwave Antenna Description
1. It comes with an epoxy resin board, a 304 stainless steel ring, and a copper nose for connecting the vibrator, which is convenient for users to use. The other terminal of the balun can be left hanging.
2. The balun has been waterproofed, and users only need to waterproof between the M seat and the cable connector.
3. This balun is particularly suitable for outdoor communication. For users who do not have the conditions to set up a rooftop antenna , using this balun to make a balcony fishing rod antenna is a good choice.
4. This antenna works in a half-wavelength state for the 40-meter band, a full-wavelength state for the 20-meter band, a half-wavelength state for the 15-meter band, and a 2-wavelength state for the 10-meter band. Therefore, the overall antenna works in a gain state, and it is end-fed, naturally resonant, free of debugging, and free of antenna adjustment.
5. The cost, finished product, debugging, and installation are particularly advantageous, and it is a good choice for novices and .
Specifications:
Transformation ratio: 1:49
Input impedance: 50 ohms (unbalanced)
Output impedance: 2450 ohms (unbalanced) suitable for long-line shortwave antennas
Standing wave: less than 1.5
Power resistance: 200w (SSB)
Insertion loss: 0.22db
Frequency range: 7/14/21/28MHz (after connecting a 20-meter vibrator, it naturally resonate in these four frequency bands, no antenna adjustment is required, no debugging is required)
When actually erecting: The two ends of the vibrator are about 0.3-3 meters from the ground or the roof (it is not recommended to be too high, if it is too high, it may be difficult to find a frequency point with very small standing waves). One end can be high and the other end low, and one end of the balun can be as high as possible. You can fix a height atone end and adjust the height at the other end until the standing wave is less than 1.5, and then adjust the length of the vibrator until the standing wave at the frequency you want is the smallest.
Due to different batches, there may be differences in product appearance and printed text, which not affect use
Colour: White
Material: Plastic
Package Contents:
1 * 1:49Balun
Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.