Hi there, greetings from the Czech Republic

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ok1bt
Posts: 1
Joined: Wed May 20, 2020 2:22 pm

Hi there, greetings from the Czech Republic

Post by ok1bt » Wed May 20, 2020 2:34 pm

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.
Image

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!

VK3KYY
Posts: 2416
Joined: Sat Nov 16, 2019 3:25 am
Location: Melbourne, Australia
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Re: Hi there, greetings from the Czech Republic

Post by VK3KYY » Wed May 20, 2020 9:28 pm

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.

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