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ENGLISH | 11
4. For the most accurate Precise GoTo functionality, polar align your
mount. Precise GoTo will still work well if your mount is not polar
aligned, but overall accuracy will be slightly reduced—typically by
several arcminutes.
5. For the best guiding performance, disable all backlash compensation
and periodic error correction (PEC) in the hand control or CPWI. This
prevents any confl icts between the SSAG’s guide commands and
backlash/PEC settings.
6. SSAG has a built-in lens shade that will help prevent dew from forming
on its optics. Under heavy dew conditions, however, you may consider
adding a third-party heater strip along with a Celestron Smart
DewHeater Controller to keep dew off the SSAG’s lens.
7. If you are using a USB cable to connect SSAG to your PC, make sure
it is a high-quality cable. If you have trouble connecting to SSAG via
USB, try another USB cable or another USB port on your computer.
We don’t recommend using USB extension cables as they can
contribute to signal loss.
8. If you’d like, you can connect SSAG directly to your PC via the USB-C
port. Before you connect, download and install the SSAG PC driver
(available on the SSAG product page on celestron.com). Plug SSAG
into your PC. After about 5 seconds, SSAG’s LED ring will illuminate
and your computer will recognize the autoguider.
9. Always leave SSAG connected to your mount via the included AUX
cable, even while it’s connected to your PC via USB-C. Use the AUX
port on your mount, not the autoguiding port. (The ST-4 auto guiding
port is not compatible with SSAG.)
4. Run CFM. It should fi nd the hand control and the StarSense
Autoguider.
5. Click the Update button in CFM. CFM will install any available updates
for both SSAG and the hand control.
10. Updating SSAG’s Internal Software
and Live View via Web Interface
Alternatively, you can update SSAG’s software directly via USB.
This method does not use CFM and does not update the hand
control. If any new fi rmware is available, you’ll fi nd it as a .swu fi le
on the StarSense Autoguider (#94008) page at celestron.com. To
install the fi le, you’ll need a USB cable (not supplied) and the SSAG
PC driver, also available on the StarSense Autoguider page at
celestron.com.
Follow these steps to update SSAG’s software:
1. Install the SSAG driver on your PC.
2. Connect SSAG to your PC via the USB cable. After about 10 seconds,
SSAG’s LED ring will illuminate, indicating it is receiving power via
USB.
3. Open a web browser on your computer and enter
http://169.254.54.1/ to launch the SSAG web
interface page (Fig. 25).
Fig. 25: Alternatively, you can update SSAG’s fi rmware via the web interface. You’ll
also be able to access Live View from here.
4. Select “Software Update.”
5. Drag and drop the downloaded .swu fi le as directed. SSAG’s software
will update.
You can also access the SSAG Live View from this web interface. You’ll
have controls to change from automatic to manual camera settings and
can even capture an image (TIFF format) here.
11. Troubleshooting and Tips
1. If you continually get the “No Stars!” error message during plate-
solving when the sky is clear, try refocusing SSAG.
2. If the Moon is high and bright in the sky, SSAG may have trouble plate-
solving within a few degrees of the Moon due to the intense glare. You
may receive a “No Stars!” error message.
a. If there is a light haze in the sky, SSAG may have trouble plate-
solving even farther away from the Moon.
b. An IR-pass fi lter can help reduce the Moon’s glare.
3. For the best overall performance, we recommend leveling your tripod.
SSAG will still work with a tripod that is not level, but its pointing
accuracy will be somewhat diminished.
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