Re: 2 meter bitx possible?
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It is BFG591 transistor. Check out hmc482 and bga612 mmics. = f
On Sat, 26 May 2018, 19:52 David Arthur, < mumrah@...> wrote: I'm also really curious about an inexpensive VHF/UHF MMIC. Searching around " BGA" takes me to NXP which has a wide selection of parts, but?no hits for?BGA591
-David
On Fri, May 25, 2018 at 3:34 PM Jerry Gaffke via Groups.Io <jgaffke= [email protected]> wrote: No hits for BGA591, can you give a link?
In some other forum, I recall a conversation between Ashhar and Allison regarding low noise mmic's for a VHF receiver front end.
Can't find it anymore.? Allison had a favorite, quite cheap, extremely low noise figure.
What was that part?
Jerry
On Fri, May 25, 2018 at 11:36 am, Ashhar Farhan wrote:
As an architecture, the ubitx is quite suitable upto 432 MHz. The changes needed would be as follows:
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1. The front-end mixer would have to be an ADE-1 or and SBL-1. The current tranformers and BAT54s would cut it.
2. We will need a good band pass filter. Above 146 Mhz, stripline/coax filters are more likely candidates.
3. The LNA and power chain will need MMICs. they are cheap and easily ordered from . A pair of BGA591 can easily provide the obligatory 5 watts.
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- f
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David K4DBZ
Unofficial bitx chatroom:?
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