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This review is from: Seiki SE39UY04 39", 4K, 120Hz LED-LCD HDTV
Pros: Extremely sharp 8-megapixel picture. Have not noticed any dead pixels.
Cons:  The default sharpness setting of 50 makes the picture awful; I am fortunate to have set this up in the office before the customer saw it as the default would ruin one's first impression of this TV. It seems the Seiki "sharpness" setting is actually an edge enhancement image processing filter. Once the sharpness is set to zero to disable it, the image is great and appears exactly as received from the video source.
 The TV would shut off automatically every 4 hours despite having live video on screen. Had to enter the hidden service menu to set the "4Hours auto standby" setting to "Off". This is a separate setting from the sleep timer.
 The backlight control slider always shows as 100 after a power cycle, even after having been reduced to 75, for example. Since the backlight *will remain* at your chosen setting while the slider still shows 100, any new adjustment will actually cause the image to *brighten* upon the first click down to 99 from the falsely displayed "100".
 The image has a slight bluish cast, but is easily correctable through color settings in the menus.
 The built-in scaler does a poor job displaying 1080P. Instead of pixel doubling to keep sharp edges, the picture appears soft and anti-aliased. Possibly OK for games or video, but terrible for PC text or vector graphics.
 The 30Hz refresh and very slight lag at 4K resolution may make this display inappropriate for gaming (though it is fine for video or general PC use).
Other Thoughts: I am using this TV with an Intel NUC D54250WYK1 miniature PC also purchased from Newegg Business. Intel says the NUC does not officially support 4K over HDMI because it lacks active level shifters but their internal testing found that it works with a Seiki 4K 50" TV. In my testing with a mini-HDMI to HDMI cable, the picture was fine but dropped out every now and then, but was perfect with an Accell B086B-008B mini-DisplayPort to HDMI 1.4 adapter that I purchased elsewhere.
My TV shipped with firmware dated 2013-08-26 but I updated to latest firmware dated 2013-08-28 as found on Seiki's firmware support page to get the backlight control on the main menu and fix the 4-hour auto standby. The new firmware also provided a few additional color options on the main menu.
After inserting the configured USB drive, the firmware update did not happen automatically after a power cycle as Seiki's web site said it would. I had to enter the hidden service menu to initiate it. Some say entering the service menu may affect the warranty, but I found it necessary to update the firmware to correct a couple shortcomings with this TV.
I will be buying more of these and the Intel NUC for use with our IP CCTV cameras.
Pros: Worked reliably with my old Verizon USB760 and, now that I have upgraded, it seems to work reliably with my new UML295 for 4G, too.
Runs from 5V power applied to its mini-USB (not micro-USB) port, so I have been able to run it in my vehicle from a spare Tom-Tom automotive power adapter since they also use mini-USB.
Has more configurability than typical SOHO router, even ones costing a couple hundred dollars (though less, obviously, than OpenWRT/DD-WRT/Tomato or a Cisco-Catalyst-type router).
Cons: No obvious cons relative to specifications and its intended applications. Would love to see shell access to the underlying OS and built-in OpenVPN TUN client, but those are rare features for any router in this class, even ones costing a few hundred dollars.
Other Thoughts: I originally bought this to flash with OpenVPN, but never got beyond the OEM firmware tests with my mobile broadband USB modems: It worked so well, I now keep it -- with the original firmware -- in the work van 24/7 on an ordinary cigarette lighter to mini-USB power adapter.
I now have instant internet access while in customer's homes and businesses without asking for guest access to their wifi or hanging a fragile modem dongle off the side of my laptop and waiting for a connection. It's been great.
We may start buying more of these to flash with OpenWRT to install alongside our equipment in customer's homes. With appropriate filtering and a high-bandwidth middle-man server, we can use either stunnel or OpenVPN to circumvent the NAT employed by Verizon's eHRPD, allowing customers to remotely access their CCTV recorder and door-access panel when mobile broadband serves as their home internet connection. (A better option is Verizon's offer for static IPv4 addresses for a $500 one-time setup cost, but I have not been able to convince any of our customers to enroll.)
This review is from: Ubiquiti 5GHz 13dB NanoStation Outdoor 150Mbps CPE (LocoM5-US) US Version
Pros: Great performance. Compact, attractive, and well constructed. Versatile, yet reasonably easy configuration. Shell access, if desired, to underlying OS. Built-in site auditing and AP-to-AP bridge bandwidth testing. Includes power inserters for passive PoE. With correct bridge config, these will pass VLAN tags.
Since 5GHz band is rarely used and has poor penetration through walls, it is perfect for line-of-sight links as there is little contention for bandwidth.
Cons: Passive (non-standard) PoE: Must use included PoE inserter/can't power from conventional PoE switch or midspan. While molded mounting boss on back makes it easy to attach this this unit to a small-diameter pipe with worm clamp or included ty-rap, it makes it more difficult to install in any other fashion.
Other Thoughts: This is the same product as NewEgg's item #9SIA1EA0CD6577, which is from a different third-party seller: "Flytec". I would probably recommend the Flytec part # over this one as the seller of this product, Quantum, took far to long to ship and didn't provide a tracking number to reassure me that I should eventually expect something.
I have used these a few times for building-to-building bridges with great success. I preprogrammed the last pair as a bridge before sending them off with techs to be installed on a customer's 1/4 mile line-of-sight span. They returned saying the built-in bandwidth tester indicated a solid 90Mbps.
Incidentally, when our primary distributer sales rep saw the Ubiquiti manual on our table during a sales call, he commented that he's heard great things from other dealers about Ubiquiti's products — and he doesn't even sell this brand (that's why I get them at NewEgg).