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Re: uBitx as IF rig for transverter

 

Hello John,
OK the 6dB attenuator between the antenna output of the ?BITX and the 28MHz output of the transverter without separation between TX and RX (28MHz side).
LNA in RX transverter input side 144.
For a better performance in RX, the LNA would be better to place it directly under the antenna with a couple of coaxial relays, but be careful, in this case the TX switching of the ?BITX + transverter system must take place after the switching of the LNA (sequencer) to avoid replace the MOSFET or MESFET very often!
73 de IW4AJR Loris

On Tue, Jun 15, 2021 at 04:17 PM, John Kemker wrote:
Thank you very much, Loris!
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Now, to make sure I understand you fully, you're recommending?I put a 6dB attenuator with no T/R switching between the uBITX and the transverter?? Don't sweat the 6dB attenuation?I'll see on the input, but put an LNA (Low Noise Amplifier) style preamp between the antenna and the transverter?? Or, should I place the LNA someplace else?
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FYI, the transverter (a Microwave Modules 144/28 model) has the ability to split out receive and transmit, if desired.
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