2.4 GHz WiFi slower and shorter range than 5 GHz WiFi - Page 1
Forum section: electronics / general

author: u666sa
author_rank: Frequent Contributor
timestamp: March 12, 2025, 11:02:03 am
content: Yea I know. I have an appartment in Sochi, Russia, and there the walls are concrete and steel, 2.4 GHz WiFi still has longer range than 5 GHz.I come to Miami, here appartment walls are made of Drywall. Wavemon scan gives me 75 access points on 2.4 GHz. Pick any channel and it's all congested. As a result full speed is achievable only in the living room, next to the bedroom router is in. On Kitchen or the other bedroom, 2.4 GHz WiFi is dead. Full speed on 2.4 GHz is only achievable next to the router.You connect to 5 GHz WiFi and suddenly WiFi is available throughout the appartment and outside of it as well. Throughout the appartment there is full speed.75 access points is not a large number, by the way. There are more in Russian appartment. But there is also shielding from concrete reinforced with rebar, so congestion is never a problem.How is this important? Let's say you want a WiFi camera, I have 4 EZWIZ cameras in Sochi, each one for a room, I won't be able to pull this same stunt in Miami appartment. It won't work. I'd need a 5 GHz WiFi camera -- which I don't know I saw those.

author: vad
author_rank: Frequent Contributor
timestamp: March 12, 2025, 03:25:07 pm
content: Amazon lists over 2,000 results for a 5GHz security camera search.There are also more expensive alternatives, such as laminating the external walls with aluminum foil (copper foil is better but costs more) or moving to a house in places like New Hampshire, where your closest neighbor would be miles away. The former option has other great advantages.

author: Zucca
author_rank: Unknown
timestamp: March 12, 2025, 03:34:04 pm
content: A wifi security camera is a bad idea in my book

author: NiHaoMike
author_rank: Super Contributor
timestamp: March 12, 2025, 10:27:15 pm
content: Really need more Homeplug cameras, still achieves the goal of not having to install new wiring.

author: themadhippy
author_rank: Super Contributor
timestamp: March 12, 2025, 11:15:39 pm
content: Quotejust have to keep changing the batteries every 10 minutes

author: Sensorcat
author_rank: Regular Contributor
timestamp: March 13, 2025, 01:09:03 am
content: Quote from: themadhippy on March 12, 2025, 11:15:39 pmPerhaps slightly exaggerated. OTOH, there's this old saying: "Changing batteries every day keeps the burglar away."

author: u666sa
author_rank: Frequent Contributor
timestamp: March 14, 2025, 05:07:09 pm
content: I installed cheapest EZVIZ cameras, works great. Records onto SD-CARD up to a month continues, and 7 days of events to cloud. Sends you notification if there is movement. Mainly watching front door from the inside and windows. Works from type-C. I plugged directly into wall outlet, but no reason not to use a UPS. I have someone watching apartment, coming once a month to pay bills and stuff. I have nothing to steal, I guess, so I don't worry about that.The main thing I worry about is neighbors or someone breaking the door and renting my apartment while I'm away on the other side of the globe. This is not prevalent just to Russia, here in Miami things like this did happen. Owners from Canada were away, meanwhile building administration opened up the door and rented the place while they were away.Plus things like neighbors flooding you and stuff. Any movement it records. It even recorded a spider lurking around.At first I though no good, cheap camera that records to sd card. But no. It's pretty good. I even used it for watching the street, works nice day and night.https://www.ezviz.com/product/h1c/47789

author: EPAIII
author_rank: Super Contributor
timestamp: March 15, 2025, 11:51:12 am
content: I don't understand the logic of a WiFi security camera that runs on batteries. The odds are 100.00000000% that when you actually need it, the battery either will be already dead, or will die one thousandth of a second before that point.Totally worthless!

author: SiliconWizard
author_rank: Super Contributor
timestamp: March 15, 2025, 12:45:19 pm
content: Quote from: EPAIII on March 15, 2025, 11:51:12 amIt's just the convenience of having absolutely no wires attached, so much easier to install. But yes, it's a recipe for failure.

author: u666sa
author_rank: Frequent Contributor
timestamp: March 15, 2025, 02:18:10 pm
content: Quote from: EPAIII on March 15, 2025, 11:51:12 amHere is a counter argument. I don't understand the point of cameras without batteries. Bad guy waits for the power to go out, which does happen, and then comes and does his bad guy stuff. You had security cameras you relied on, then bad weather happened, and you got robbed, no record of it.Security cameras will warn you when batteries need to be replaced or recharged. Very convinient.Now, WiFi cameras are bad, I don't disagree with that. Because we can jam just about any WiFi network using a tool called airgeddon. User will get push notification that network is off line. There won't be events going to cloud. Bad guy just have to remember to steal the camera or the SD card out of it.On the other hand, if the camera is not WiFi, if it's ethernet, that means we can cut the access to cloud with pliers and then take any local storage. So it's kinda is the same thing.Cameras by themselves don't guarantee security, you need an actual security guard. I have people I could call that could check on my appartment. Cameras as early warning and piece of mind. I can open the app and see if everything is okey, without cameras I'd be worrying about stuff and live in the unknown.