Why is an HF coupler pressurised with Nitrogen?
The HF antenna for long range communications makes the HF system capable of communicating over distances of 3000 km or more. Here explained why the HF coupler is filled with low pressure nitrogen gas.
The HF antenna for long range communications makes the HF system capable of communicating over distances of 3000 km or more. Here explained why the HF coupler is filled with low pressure nitrogen gas.