Each pôle length is lambda / 4
143/2F = Length of each radiator element in meter.
PVC pipe is about lambda / 4 long from the reflector.
Use 50 Ohm coax câble
If the antenna is well done, this kind of antenna can support very high power like 1kW as long as your coax cable can handle it.
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https://www.youtube.com/watch?v=yeiJyalNNu8
DSP and I2S MPX mode epic test sound performances.
In MPX mode, the MPX signal is sent to the modulator via I2S at 192KHz samples rate via USB interface. The audio is sent simultaneously into analog DSP L&R input and raw MPX signal via ust in I2S to the modulator.
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https://www.youtube.com/watch?v=UG38s1146u4
Radio Master 650LE
Frequency 85 to 108 Mhz
Supply consummation: 48Vdc@16A nominal
Efficiency 77%
Output power: 650 Watts nominal (700W max)
DSP processor 56Bit: Stereo + RDS
Contrôl via USB command line or LCD display board
Protection: SWR, Temperature
Input & data connections:
- Audio L
- Audio R
- MPX
- RX / TX
Remanded power supply: RSP-1000-48
http://www.meanwell.com/mw_search/rsp-1000/RSP-1000-SPEC.PDF
For informations and order contact: roosen.floris@gmail.com
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https://www.youtube.com/watch?v=AiboPV5IZyw