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Group, In the past couple of days, the north Dec button on my 14 year old GM8 hand controller has stopped working. The attachment shows the type of HC I have. Pressing the north button alone does nothing in sidereal mode. It also seems not to do anything when in menu mode to scroll through the options in reverse. The south button is working but I can’t put it in fast slew mode by tapping the north button. I would think there might be a failure of the physical button but if I hit DEV REV then the north button now works (moving it south) but the south button no longer works. Anyone know what could be going on? Is there some obscure setting in the Gemini L4 command set that I’ve accidentally enabled that says “don’t move north”? ? -- Bill Tschumy Otherwise -- Longmont, CO www.otherwise.com

Hi All Is it possible to rename and reconfigure the sites stored in "Site Information"? I have updated the "Hollywood" coordinates to my home coordinates but it now just shows as "User Site" The remaining 3 preset sites are less than useless so I'd like to update them with site info that I can use. -- Thanks and Best Regards Neil

hi all, anyone can tell me which thread is it? Here in Italy we aren't so friendly with withworth threads. thanks, Luca

Hello everyone. I had the opportunity to get a G-11 Losmandy and with the accessories it had, there is this mechanism that I have no idea how to use. If there is any manual or instructions, I would appreciate it if you tell me how to locate it or download it from the internet. Preferably in Spanish. Thank you all

I just installed 1.1.28 and went into Setup to change the location (I have move to a new house). The fields for latitude and longitude would let me position the cursor in them but I couldn't change the values? What am I missing (no the telescope's not connected). ** UPDATE Never mind - when I connected the 'scope I was able to adjust them David

Group, I have been trying to use a 14 year old GM8 mount (non-spring loaded worms; non-tucked motors) for variable star analysis. For this analysis, it is not essential that guiding is perfect, but I’d like to get it better than I’m currently achieving. This is with a small refractor of 740mm focal length. The crux of the issue is that guiding in Dec seems to be reasonable (say 0.3 RMS”) but RA guiding is significantly worse (say 1.5 RMS”). I’ve attached a screen shot showing what the RA guiding looks like (blue is Dec; green is RA). I am using KStars/Ekos for imaging and guiding but I get similar results if I use PhD. The RA seems to bounce around somewhat chaotically. I do have pretty bad seeing where I’m located, but the fact that the Dec doesn’ bouce around as much indicates this in more than bad seeing. I have been working on this problem off and on for some time. I have tried. 1. Stripping the mount and completely cleaning/relubbing it 2 or 3 times 2. Swapped the worm and worm blocks between RA and Dec axes 3. Swapped the gear boxes between RA and Dec axes 4. Swapped the motors between RA and Dec axes 5. Shimmed the RA gear box to correct a slight misalignment at the Oldham coupler 6. Tried lubricating the Oldham coupler 7. Shifted the counterweight around to make it East heavy and East light 8. Tried a different power supply None of this has made a significant difference. I still get poorer guiding in RA. Anyone have any ideas on what is going on and how I might fix this? Thanks, Bill -- Bill Tschumy Otherwise -- Longmont, CO www.otherwise.com

Hi, I wanted to ask a question but more of a curiosity.... I noticed that Losmandy mounts up to about 2005/2008 had one of the two screws with two washers, which in current mounts for example are no longer present i.e. there is only one for each screw. What was the purpose of the two washers, just to identify it from the top adjusting one or as a special shim and if so, what were they used for over the years? I enclose a photo of a not recent Losmandy G11 taken from the Internet for better understanding.

I'm catching up with twenty years of experience regarding PEC and Gemini I. I've read Losmandy/ Gemini I doesn't play well with PEC because of the non-integer gear reduction in the stock Losmandy gear boxes. Did that used to be true? Is it still true? Do the new gear boxes Losmandy sells have integer reductions, or are the McLennen gear boxes still useful mods? Does PEMPro deal with non-integer reductions smoothly? Does Gemini I support PEC programming using a 2x worm cycle, or is that for Gemini II only? I'd rather not train my mount (go-to MI-250 w/ Gemini I) the old fashioned way, so I'm interested in changes and advances which have happened while I've been using eye pieces.

Hi everyone, It looks like I have a dead RS-232 chip and I'm planning to replace it. For some details on this, my 2007-vintage Gemini-1 G11 started acting up a few days ago. It intermittently stopped responding correctly to slews commanded through the ASCOM driver, got worse over the night, and now has issues even connecting through the RS-232 port. I first tried different cables, then computers, USB-to-Serial adapters, swapped the battery, cleaned the RS-232 port's pins, etc. When I can get it connected to a computer, it will respond to ASCOM driver hand controller movements, but will not accept any slews to RA/Dec. Per the Gemini-2.net Gemini 1 FAQ, I tested the voltage across C21 and it shows near 0 (even immediately after waking it up by requesting GPS coordinates). Voltage across C19 is 5.0. Seems like a textbook failure. This recent thread mentioned a current part number for the replacement IC: /g/Losmandy_users/topic/rs_232_port_damaged/106474176 Is the MAX3226EEAE+ still the best SMC to use as a replacement? https://www.mouser.com/ProductDetail/Analog-Devices-Maxim-Integrated/MAX3226EEAE%2b?qs=1THa7WoU59EroIdxsq5Y%2FQ%3D%3D Also, I'm thinking of replacing the RS-232 port at the same time. It seems to be working fine, but there is a little corrosion that I couldn't clean up. Does anyone have a good part number for that? Thanks for the help, Bryan