**Foreword**
One year ago, I shared my EDC with some of my close friends. It was a small collection of essentials that I carried daily. Then, six months later, I added drones to the mix and shared another version of my EDC.
Time flies—before I knew it, winter is approaching again, and it's time for another EDC update. Some items have been swapped out, while others have been added. This EDC isn't about traveling; it's more about what I carry on a regular basis when I'm not on the move.
Let’s take a look at my **Dunhill Briefcase**.
A few years ago, when I was in Hong Kong, I was feeling a bit lost and decided to treat myself to something "top grade." The Dunhill brand caught my eye, so I bought it from a store. After purchasing, I didn’t use it much, so it remained almost new.
The briefcase is square-shaped, with no external decorations or straps. You can only carry it by hand. There are zippers on the back that allow you to insert it into a rolling suitcase for stability. Its dimensions are 40x25 cm, which is just enough to hold my daily work essentials. However, if you overfill it, it tends to lose its shape and look less neat.
[Image: http://i.bosscdn.com/blog/59/f9/40/5244ea27620.jpg]
The front of the bag is simple, with a subtle pattern on the surface that resembles a woven texture. Though it's not exactly like a BV (Burberry) design, it still has a classic feel.
[Image: http://i.bosscdn.com/blog/59/f9/40/55b16912059.jpg]
Inside, there's only one hanging tag placed awkwardly. Since Dunhill updated their logo, you can tell the old and new versions apart by the emblem. But for me, it doesn’t matter too much—I just care about functionality.
[Image: http://i.bosscdn.com/blog/59/f9/43/da0aaaf5658.jpg]
The zipper wasn’t used for a long time, so it wasn’t very smooth at first. I tried rubbing it with a candle to make it glide better. The zipper has the Dunhill logo, and I’m not sure if it's YKK OEM. The head is a matte black metal block. Even though it feels slightly heavy, it gives off a cool touch during the colder seasons.
[Image: http://i.bosscdn.com/blog/59/f9/43/de089a01951.jpg]
When I open the zipper, the inside is lined with suede material. There are three pockets: two small ones and one large one.
[Image: http://i.bosscdn.com/blog/59/f9/45/52ec3817699.jpg]
I usually drive, so I don’t carry many personal items like keys or purses. Instead, I keep what I need for daily tasks.
In one pocket, I have an Anker Super Charger and an iPhone 7+. When driving, the phone connects automatically via Bluetooth. When I’m outside, I use it for calls, WeChat, etc., along with my Apple Watch.
[Image: http://i.bosscdn.com/blog/59/f9/45/52ec3817699.jpg]
Anker Charger & iPhone 7+
[Image: http://i.bosscdn.com/blog/59/f9/45/53df53a5040.jpg]
On the other side of the bag, I carry a laptop, a notebook, and a Kindle.
[Image: http://i.bosscdn.com/blog/59/f9/54/bb980626969.jpg]
There’s a buckle where I hang my car key.
[Image: http://i.bosscdn.com/blog/59/f9/54/bcba9921072.jpg]
On this side, there's the only zipper and a divider. I keep my wallet here.
[Image: http://i.bosscdn.com/blog/59/f9/54/8da7af71896.jpg]
Overall, the bag works well. I think the inner lining is actually better than the exterior.
**Kindle 5**
This was my first Kindle. It had no backlight and came with physical buttons. Its battery life was amazing, and it served me well for a long time. Now, B2C sites like Lynx and JD are gone, so I can only share a X treasure link. It's now recommended to buy a newer model with a backlight.
**Dunhill Wallet**
I bought this wallet at the HK store, a few years before the briefcase. It's been over seven years since then. With e-commerce taking over, I spend more time in my bag. Despite some wear, it's still functional and fits my plan.
[Image: http://i.bosscdn.com/blog/59/f9/57/0c156607739.jpg]
It has three slots on each side, perfect for cards and cash.
[Image: http://i.bosscdn.com/blog/59/f9/57/0e0ad091742.jpg]
Since it's been around for so long, I don't have a shopping link.
**Car Key**
This key has been with me for five years. It supports keyless entry and start, making it feel like I just walked into my house.
[Image: http://i.bosscdn.com/blog/59/f9/58/3475e921406.jpg]
**Anker Super Charge Power Bank**
I’ve used and given away over 200 of these on JD. My colleagues often grab it right from my hand. It’s foldable, offers 2 USB ports, and holds 5000 mAh. It saves one device from needing a separate power bank.
[Image: http://i.bosscdn.com/blog/59/f9/59/0c8ca68205.jpg]
My colleagues love using it for two devices. Last night, I took a photo of it after it was taken by a colleague. For this black EDC theme, I specifically use a black version.
[Image: http://i.bosscdn.com/blog/59/f9/59/0d07bab7403.jpg]
Besides black, it also comes in white and red. If you’re planning a summer EDC, consider the red version. It usually costs 168 yuan, but you can find it for 128 or even as low as 78 during sales.
**Notebook**
As I rely more on digital tools, I occasionally use a physical notebook to stay focused and show respect during meetings. For this EDC, I chose a black cover notebook.
[Image: http://i.bosscdn.com/blog/59/f9/5a/cf9e9644185.jpg]
**Lamy Pen**
Lamy pens are common on Taobao, and they're considered a popular brand. Their star series and metal pens have a great feel. I use Pelikan green ink to add a little personality.
[Image: http://i.bosscdn.com/blog/59/f9/5c/f6ef14d1723.jpg]
**iPhone 7+**
This was a previous flagship model from Apple. I use a Mophie case for wireless charging, which meets my needs for IP8+. I haven’t upgraded yet. The iPhone X screen is still a bit small for me, so I use it as a display for aerial photography.
[Image: http://i.bosscdn.com/blog/59/f9/5c/f8b60279463.jpg]
**MacBook Air 13" Laptop**
This is my company-issued work computer. Since I haven’t reached the three-year mark, I can’t replace it yet.
[Image: http://i.bosscdn.com/blog/59/f9/5c/f8327147671.jpg]
To match the black EDC theme, I recently added a black protective case.
[Image: http://i.bosscdn.com/blog/59/f9/5c/fa7ead9848.jpg]
**Apple Watch 3**
I forgot to bring it during a family photo session, but I ended up buying one for my wife. Now I can monitor her activity and exercise together.
**To Sum Up**
There are many EDC posts on Aunt Zhang, but not many in the same color scheme. The EDC I’m sharing today is something I use daily and find interesting. I hope you can give me some advice and see your own EDC styles.
[Image: http://i.bosscdn.com/blog/59/f9/62/5d7be851865.jpg]
Sector Panel Antennas, also known as sectorized antennas or directional panel antennas, are a crucial component in modern wireless communication systems. These antennas are designed to provide highly directional radiation patterns, enabling efficient coverage of specific sectors within a broader communication area. Their versatility and performance make them ideal for a wide range of applications, including cellular networks, public safety communications, and wireless broadband systems.
Classification Based on Coverage
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Single-Sector Panel Antennas:
- These antennas are configured to cover a single, narrow sector of the overall communication area. They are typically used in smaller networks or as supplemental coverage in larger systems.
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Multi-Sector Panel Antennas:
- Multi-sector panel antennas consist of multiple panels or elements arranged in a way that divides the overall coverage area into multiple distinct sectors. Each sector can be individually optimized and controlled, providing greater flexibility and coverage control. These antennas are commonly found in cellular base stations, where they are used to cover a larger geographical area efficiently.
Classification Based on Frequency Bands
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Low-Band Sector Panel Antennas:
- Designed to operate in lower frequency bands (e.g., 600 MHz to 2.6 GHz), these antennas excel at providing deep indoor penetration and wide-area coverage. They are particularly useful in rural and suburban areas where signal propagation can be challenging.
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Mid-Band Sector Panel Antennas:
- Operating in mid-range frequency bands (e.g., 2.5 GHz to 3.7 GHz), these antennas offer a balance between coverage and capacity. They are commonly used in urban and suburban areas, supporting a mix of voice and data traffic.
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High-Band Sector Panel Antennas:
- Operating in higher frequency bands (e.g., 3.5 GHz to 5G+ frequencies), these antennas enable high-speed data transmission with reduced latency. They are increasingly being deployed in dense urban environments and for specialized applications such as mmWave 5G networks.
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