OpenGD77

Hello there,
I am watching Roger´s blog since radioddity started few years ago. I have many GD-77 and operating them on OK-DMR and BrandMeister network ocasionally. These days I am focused on birds on LEO and I want try to tune UHF part little bit lower.


ref: http://members.optuszoo.com.au/jason.re ... 77mods.htm
ref: https://vrtp.ru/index.php?showtopic=9078&st=14580

Best regards de OK1BT, 73!

The RF chip, AT1846S PLL won’t lock very much beyond its published specification

I recently extended the frequency range limits a little, but this is now at the limit of the RF chip.