Hi Band build

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Murphyv310
 

Posts: 40
Joined: 18 Apr 2022, 19:33

Hi Band build

Post by Murphyv310 »

Hi.
I've ordered a kit from Up Tech Store so I can construct a version using the high frequency or the classic bands covering 10, 15, 20, 40 & 80. As yet I've not fully decided what way to proceed. Having a fully working (tr)uSDX, Im leaning away from the Classic bands and concentrating more on 10, 15, 17, 20 & 30 although I'd like to include 11 and dispence with 30 if that was a possibility.
Ive managed to procure 10 FDT86256 MOSFETS from Digi Key as well as I would think these are more suited for higher frequency operation than 3x BS170.
What do we know so far about turns on the toroids for these bands so far? What about cap values is there any definite answers to what should be used?
It'll be a couple of weeks before I have the kit so I've time to order the required components if there is the required info.
Many thanks in advance.
Regards, Trevor. 2M0GZQ
Faraaz VK4JJ
 

Posts: 215
Joined: 30 Dec 2021, 21:56

Re: Hi Band build

Post by Faraaz VK4JJ »

What do we know so far about turns on the toroids for these bands so far? What about cap values is there any definite answers to what should be used?
I haven't seen anyone publish any data for inductor/capacitor values for the high-band board as yet. I have the theoretical values sitting here on my bench but haven't found the time to experiment yet.
s57l
 

Posts: 23
Joined: 30 Dec 2021, 21:30

Re: Hi Band build

Post by s57l »

https://dl2man.de/2-trusdx-assembly/
here are the theoretical values. i did experiment with fdt in the previous usdx version and got usable results even on 6m.
For the bands you have 3 options (hi, lo, classic) and are fixed as you get the compiled software.
73 gl
janko s57l
Murphyv310
 

Posts: 40
Joined: 18 Apr 2022, 19:33

Re: Hi Band build

Post by Murphyv310 »

Many thanks for the replies.
I will look at the thread and decide my next move.
Regards
Trevor 2M0GZQ
Regards, Trevor. 2M0GZQ
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