it should be: MMBX-50-2-4/111_N
What TX amplifier do you plan to use?
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apologies for my writing in translation
After a 1 year standstill, I picked up the famous pa umts with the two BLD6G22L (the same one found on numerous posts on the net) to transit on the satellite in datv.
These are the problems I have encountered and am asking for help:
- Launching power the same power supply would sit and go from 28V to 14V, this suggests many things, but by slightly unscrewing the PA circuit the problem was eliminated.
- With the two driver boards (tested in TX alone so working) the PA does not work, remaining cold (I have no suitable measuring instrument to check anything else).
I have not made any other modifications apart from the input and output connectors
I would like to point out that the pluto works regularly by testing it locally.
My knowledge is limited to do anything else but it baffles me that the exact same problems are strangely the same with an identical PA taken to make up for some electronic problem with the former.
Has anyone experienced the same difficulties?
Thanks
Translated with http://www.DeepL.com/Translator (free version)
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Dear All ,
I would like to know if anyone experimented with the following transistor for 2.4Ghz ( the data sheet does not give any positive reinforcement that's why I am bothering the group .. )
BLF8G20LS-200V
Thank you in advance
5B4AKV -
No , mi dispiace, ma essendo un amplificatore a 2 ghz, ci devi lavorare un bel po' per portarlo a 2,4 ghz!
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https://www.ebay.com/itm/20408…a99502:g:DXgAAOSw4JBjbO6B
2,3GHz DOUBLE QRO RF linear amplifier, 2x BLC9G22XS-400AVT with cover.
Is there modification instruction available for this or another one present at e-bay ?
Br. Esko Petäjä
OH6MQM
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hope this can help but you must subscribe to the group:
https://groups.io/g/G7NTG23cms…ersion_of_pallet/90976199
cannot attach the file here as it is too big!
i2NDT Claudio
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Hi Claudio,
many thanks for the link to this group.
