Not all components available to those present at the forum are available in our country.
I offer PE4259 so far that only as an option, for clarity idea.
Chips PE4259 it turns out to buy cheaply and quickly from Ali or Ebay. Also, these chips have successfully used Flex Radio in their HF transceivers. Several designs from our local radio amateurs show their excellent work on HF. Do not worry about the quality of their work below 10MHz.
After your words, I have now rethought the whole concept.
It is not necessary to do on the principle of “all in one”. This is very difficult to implement.
Perhaps the right solution is to make modular consoles on different frequency bands:
- A separate module connected to Lima on the HF section - 0.1 … 70 MHz.
- A separate module, connected to Lima on the VHF/UHF section - 144 … 1300MHz. (144/222/430/1300)
- A separate module connected to Lima for the most advanced microwave fanats - for frequencies above 2 GHz.
All modules have different implementations for parts designed directly for a given frequency range.
How do you look at the idea?
About amplifiers of a series РА30.
Please, keep in mind that you have in your stores, a newer parts. We do not have that.
PA30 is also an example. We have them available “a lot and cheap”, as they are available for many on Ali. You can apply PA60 and PA80. See what’s available in your stores.
Share your ideas too? What is new in you markets for VHF/UHF PA?
I want to focus on the important moment!
If we consider the construction scheme of the type “for all radio amateurs in the world” - it is very difficult to take into account the available assortment. And the US has one assortment, another in Europe, another in China, another in Australia. Therefore, I now focus not on a specific scheme, but on common modules, according to which everyone can choose what is convenient for him and can be bought in his country.
I can do hardware from what is available to me, you do - from what is available to you. Sharing information and experience in this forum, we can make each other rich in ideas. And also, to show people that everything is possible!
Do you like this idea?
For example, I had the idea of THIS TOPIC after I saw YOUR topic-question about 40MHz clocks.