This manuscript is an excellent and thorough overview of the ALOMAR RMR developed by the authors and their team. It includes the technical details which support the numerous scientific studies cited and will be very useful to the community for understanding the details behind past and future scientific papers using measurements from the system.

This is an excellent paper. The ALOMAR lidar is one of the legends in the middle and upper atmosphere field. The authors present comprehensive descriptions of the development of the lidar system. It will be helpful to the community to understand the details of the system's hardware. The paper is well organized, and the selected measurement results are interesting and demonstrate the system's capability.  Looking forward to more scientific finds come out from this system.

This manuscript reports the current status of the RMR lidar at ALOMAR station. Many technical details of the subsystems (laser source, telescope and beam guiding et al.) of the lidar are introduced in this paper. This paper is well written, and will be a good reference for the experts in this field. The ability of remote operation is quite notable for the reason that to automatically operate such a lidar is quite difficult. The 30-years operation and technical upgrading makes RMR lidar a rare or even the only system in the world that can provide aerosols, temperature, and horizontal winds simultaneously day and night in the middle atmosphere. This paper is in the scope of AMT. Before final publication, some minor revision and clarification of technical details should be provided:

Line 20: typo error: “LIght”

Figure 2: There is a beam monitor (BMON) module, is this for the beam direction stabilizing? If it is, the laser beam direction stabilization loop (as mentioned in line 107) should be described in detail.

Line 165: the remaining beam fluctuations in the order of 6 to 20 urad. If the author could discuss this in more details and shown some raw camera and aligning methods (or give a reference), that would be helpful for the readers who intend to build similar systems.

Table 1: The author only gives the beam parameters after expansion. It’s better to show the parameters before expansion. The original beam parameters (divergence and pointing stability) of the Innolas Spitlight DPSS EVO-IV may be given by the factory technical report. However, did the author test them in the lidar lab? To my knowledge, the status of the laser may be changing during long term observations.