April 2024 Eclipse

I’m sure my eclipse day story is not much different than untold thousands of others, but I only have mine to tell. 🙂

My long long time friend KD and I started loosely planning for an eclipse capture trip quite early, as one should. Actually, we started planning for the October 2023 annular eclipse. We both live in Texas, but a good four hours apart and neither of our homes were directly on the October 2023 path. Soon, however, I realized that I already had conflicting plans for that week, so I missed that one. That made April 2024 that much more important. I had vacation time to burn, so planned for Monday and Tuesday of that week so that I could do whatever travel I wanted to do.

As we got closer to the date, we tried to find a place that was a similar daytrip drive for both of us and it was looking likely for a lonely stretch of highway near Llano. Conditions changed, as they often do, and KD was going to be able to make it more than a day trip, so I started looking for places closer to me, intending to host him here. As it turns out, the path passed through a town near Sulphur Springs where I know someone who owns a bit of land. I contacted her and a couple of astrophotography nerds were just the thing she needed to complete her eclipse day plans. She asked for our T-shirt sizes, so I knew something was up. 🙂

The other part of planning that I was partly successful with was the two part task of getting things together for the shoot and practicing with them. I was better at gathering than having 😉 Of course, the gathering was done in time for the October eclipse.

The general plan for the day was to use my Redcat 51 telescope and venerable Canon Rebel T6 with a solar filter and an intervalometer to take about one picture per minute and use my tracker to make it easier. Happily, for that part of the plan, all I needed to purchase was a solar filter to fit the Redcat.

I also wanted to have an second camera for manual use. I found that I could get decent price on used Canon cameras on Adorama. They had a Rebel T5 for less than $100. The T6 has WiFi and NFC and a higher resolution screen, but otherwise the T5 is essentially identical to the T6, making them largely interchangeable for most of my uses.

Editors note… for reasons I can’t explain, I am picking up the editing of this post almost a full year after the event and everything above this paragraph was written a year ago. It just shows that if I don’t jump right on a blog post, it suffers.

Now it just came down to making sure that KD and I coordinated our travel plans and that we gathered pretty much everything vaguely photographically related that either of us own. He came to our house a day early and the morning of, we headed to North East Texas. After all the introductions were made, it came to light that the proprietor had indeed made a small event out of it and had lunch and T-shirts for a dozen or so guests.

We set up all of our gear. With all the boxes and bags we brough in, it looked like we were there for a movie shoot. Sadly, I did not get any good detail shots of the gear once it was set up, just this wide shot of the site.

In the foreground is KD’s setup, a Canon DSLR and filtered lens on a tracking mount, secured on a weighted tripod. Behind is my setup, similar in that it is a Canon DSLR and the Redcat51 with a filter on a tracking mount secured on a big tripod, but not weighted. In the rear is someone else’s camera on a tripod.

One of the things we were concerned with was polar alignment for the tracking mounts without being able to see Polaris. Using just compass directions fine tuned with smartphone apps, it turned out to not be a big deal. We sighted down the axis of the tracker along the compass line and tracked the sun pretty well, making a couple of small adjustments to tune it in beforehand.

The setup as we approached showtime felt pretty dialed in. Besides, what were we gonna do, start over?

I had my intervalometer set to one exposure per minute, and I was setting exposure manually in the camera. I had an external HDMI monitor connected so that I could preview images and do these exposure settings thanks to KD bringing one for me to use. This was SO handy that I immediately purchased one of my own after this event.

When the schedule app we were using gave us the warning for first contact, we got ready. I started my exposures *at* first contact, which technically was not yet visible to us, especially to the naked eye.

My setup tracked really well. I did have to reframe a few times to keep the image centered, so polar alignment was not perfect, but it was definitely good enough. I tweaked exposure a few times, especially when we had a few clouds pass through, which did happen several times, especially after totality.

So, yes, the clouds had us very nervous around totality, but if I recall correctly, we got all of totality cloud free. Or at least, if we had clouds, they passed quickly such that totality was not ruined by them. I would need to check all the images. As mentioned above, I am editing this post a full year after the event :/

There were quite a few clouds between the end of totality and last contact, enough so that I had to kinda cheat for my composite image of the event.

The top half images are first phase images. Because of how many second phase images were obscured by clouds, I could not really mirror shot for shot like I wanted to, so I cheated and just mirrored the first phase images completely for artistic reasons.

A good time was had by all. Yes, we are posing with Moon Pies.

It’s All Rigged!

As mentioned earlier, I have been setting up my work desk with some ham radio things, namely my Yaesu FTM-100DR for local repeater and WIRES-X access. I also wanted to redeploy my RemoteRig-equipped IC-7100 for HF access. That did not go quite as planned.

A bit of RemoteRig history as it pertains to my domicile. My wife indulges my numerous hobbies, but only to a point. A room packed full of radio equipment would be a step too far, so my HF rig and it’s attendant antennae are installed in my workshop and I invested in a set of RemoteRig RRC-1258MkIIs units paired with my Icom IC-706MkIIg. There are other ways to remotely operate a radio, but this solution uses SIP and VoIP technology to extend the control head separation cable over an IP network, whether locally or across the planet. It does a great job of it.

I originally purchased my set in 2015, along with the increasingly rare and expensive Icom OPC-581 separation cable (which I then, painfully, had to cut in order to use) but I was able to control my IC-706 in the workshop from anywhere on the property and with a little forethough, pretty much anywhere else either. In practice, I really only tested it from anywhere else, but I used it from the house frequently. Though I had not planned to do so, a situation kind of forced me to use it for Field Day 2015. Then I failed to submit the logs for my 57 QSOs. Sigh. I also used it for a Texas QSO party contest from our dining room. The thing just works.

I digress. When I got the itch up upgrade rigs around 2017, I kept in mind to find a compatible rig and landed on the Icom IC-7100. It was equally easy to reconfigure RemoteRig to the 7100.

Life and such ensued and some years passed with occasional use, but somewhere in there, the RemoteRig control unit was misplaced. I have searched quite extensively for it and while I am sure it will show up someday, I reached the conclusion that it was no longer practical to keep searching for it and elected to replace the missing unit.

In the years since my original purchase, RemoteRig had restructured somewhat and no longer does any direct sales. I think Ham Radio Outlet used to carry them, but they are no longer listed. I looked at all the vendors listed on RemoteRig’s webpages and found no US distributors. Furthermore, I found only one who sold single units, as opposed to a pair in a set, Limmerad in Sweden. The price looks scary at 3,600 kronor, but that is only about $365 US.

Only, he says.

So a week later, it’s in hand and set up. I updated firmware on both units, especially since I’m sure the last time the radio unit was updated was around 2017 or so. Everything seemed to come up working, but because I’m not really operating regularly, it would be quite a while before I would notice an issue. I had no transmit audio.

The troubleshooting saga deserves its own story. Over a period a a couple of months, I used Wireshark to snoop packets to verify that there was essentially no payload audio in the outgoing packets from the control.

For sanity check, I verified that audio packets coming from the radio definitely had data.

I used an oscilloscope to verify that the microphone was passing through the control head and into the jack on the RemoteRig device.

This signal was pretty low, 600ish mV peak to peak, so I also measured it directly at the microphone to ensure that it was not be adulterated by the control head, but it is the same 600ish mV for a similarly loud signal (of me emulating a tone generator; I can hold a frequency reasonably stable). I honestly expected some sort of amplification or buffering to happen in the control head, but that doesn’t appear to be the case.

Following the suggesting of a new friend from a RemoteRig forum, I was going to tap the option strap for the microphone inside the RemoteRig control device to verify that audio was making it *to* the device. In his experience, these strapping jumpers are unreliable. I removed the cover to gain access to the jumpers, then pulled up the documentation to see which pin I needed to connect to.

Hello!

I specifically remember putting in the jumpers that were not directly across from one another first then going back fro the ones that went straight across. I obviously skipped one and the one I skipped carries the microphone signal into the RemoteRig.

Doh!

I put the missing jumper on and they lived happily ever after.