I imagine it must be built where the Earth is not visible, to eliminate the bulk of manmade noise and interference. Just over the horizon might be sufficient. If the moon proves to have an ionized atmosphere then more distance will be required.

BTW the half of Luna not visible from Earth will continue to be referred to as the 'dark side' even though it is as illuminated as the visible face. In this context 'dark' refers to the blanking of direct radio communication from Earth.

A high speed railroad should be constructed from the base of the stalk to the LunaR site. This will greatly ease construction, especially in the early stages when the construction site does not yet contribute to its own sustainability and all consumables have to be trucked in.

Unfortunately the railroad will attract other research groups who want to work on the dark side, so a wise administration will build spur lines to keep their settlements away from the LunaR.

One thing to note is that a large ARECIBO style antenna on Earth sweeps the sky at about 360 deg. per day, while a similar construction on Luna will be approx. 28 times slower. OTOH given the technology that built the beanstalk coupled with Luna's famous low gravity, you can expect to build an array of truly enormous steerable dishes.

I imagine it must be built where the Earth is not visible, to eliminate the bulk of manmade noise and interference. Just over the horizon might be sufficient. But if the moon proves to have an ionized atmosphere then more distance will be required.

I expect the half of Luna not visible from Earth will continue to be referred to as the 'dark side' even though it is as illuminated as the visible face. In this context 'dark' refers to the blanking of direct radio communication from Earth.

A high speed railroad should be constructed from the base of the stalk to the LunaR site. This will greatly ease construction, especially in the early stages when the construction site does not yet contribute to its own sustainability and all consumables have to be trucked in.

Unfortunately the railroad will attract other research groups who want to work on the dark side, so a wise administration will build spur lines to keep their settlements away from the LunaR.

One thing to note is that a large ARECIBO style antenna on Earth sweeps the sky at about 360 deg. per day, while a similar construction on Luna will be approx. 28 times slower. OTOH given the technology that built the beanstalk coupled with Luna's famous low gravity, you can expect to build an array of truly enormous steerable dishes.