It would be worth investigating the possibility of shading. Shield the entire front panel and the connecting ribbon cables.
In sbitx, I shielded the cable from the RPi to the display controller and the area between the RPi and the pcb.
As a result, I can control the reception sensitivity (IF) to a value of 80-90 instead of 60 (depending on propagation).
I insulated the shielding with 50 mm wide copper foil and the copper surface with Kapton tape of the same size. (Kapton can withstand higher temperatures).
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?rdemes lenne megvizsg¨¢lni az ¨¢rny¨¦kol¨¢s lehet?s¨¦g¨¦t. A teljes el?lapot ¨¦s a hozz¨¢vezet? szalagk¨¢beleket is ¨¢rny¨¦kolni.
Az sbitx-ben az RPi-t?l a kijelz? vez¨¦rl?h?z men? k¨¢belt ¨¦s az RPi ¨¦s a pcb k?z?tti ter¨¹letet ¨¢rny¨¦koltam.
Ennek k?vetkezt¨¦ben a v¨¦teli ¨¦rz¨¦kenys¨¦get ?(IF) 60 helyett 80-90 ¨¦rt¨¦kig (terjed¨¦st?l f¨¹gg) tudom j¨®l szab¨¢lyozni.
Az ?¨¢rny¨¦kol¨¢st 50 mm sz¨¦les r¨¦zf¨®li¨¢val ¨¦s a r¨¦zfel¨¹letet ugyanolyan m¨¦ret? Kapton szalaggal szigeteltem le. (Kapton magasabb h?m¨¦rs¨¦kletet elvisel).
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Gyula HA3HZ
HA3HZ