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Hkc have a doorbell coming in the next 8 years

Dahua bells even for DIY are better than most, have the SD card on monitor side option

There are several hard wired systems that provide free software with notifications. Bear in mind though none of them including Ring are 100% reliable. My doorbell occasionally forgets to let my phone know there is someone at the door even when Im on the same WiFi, it activates my home assistant everytime though

I've been told I'm better looking whilst wearing my balaclava... (no face no case) I'd guess I could walk up to lots of houses & either disable their internet by cutting the external wire or turn off their electric by pulling the fuse in the meter cupboard. The plastic doorbell may have an SD card, but will easily fall into my pocket when hit with a claw hammer ? However if I was investing in wifi jammer I'm probably coming for a car ? Does your ring door cost more or less than a tyre ?

Bear in mind ring is a diy product not a professional one. But any wifi device can be jammed. You always want to have on site recording and ideally cabled. Some people reley on edge recording (sd card in the device) but if the device is removed the footage is gone too.

I saw this post on Google and I'm absolutely furious. The Ring doorbell camera I bought on Amazon was jammed by someone using a signal blocker yesterday—there’s a 20-minute gap in the footage and I didn't even get an alert on my phone! I can't believe such an expensive Ring camera is so vulnerable. I'm planning to spend a small amount of money to install a wired camera instead, but I have a question: when an intruder approaches, will the footage be uploaded to the cloud in advance? If so, would I need to pay for a cloud subscription? I really don't want to set up a dedicated camera server to receive the video.

Lol

When an alarm is fitted by a proper alarm co. they do boring stuff called commissioning All the circuit readings are taken at the control panel, then all the resistance, voltage and current reading are recorded to add fault finding. Fast forward 17 years later & when the tamper circuit plays up , you'd measure the circuit to find rather than 28.5Ω its now measures 380Ω Each device measures under 3Ω apart from the kitchen pir measures over 300Ω, removing the tamper wires & twisting together the circuit now read 3Ω, pir tamper switch is knackered replace item. Do you have a fat wife who waddles across the landing squashing the alarm wire between the floor board & central heating pipes ? - rewire & book her into slimming world. Do you have mice eating the cables in the loft or under the floor ? - rewire & get a cat Is the front door on the alarm on the global tamper ? its probally corroded on the terminals... replace it Its basic fault finding, normally I'd not wire anything new doubled poled & the aux tamper would be most likley used for a speaker...

Hi, I have a number of Vivotek IP cameras for sale. All are brand new and surplus. List of cameras available Vivotek MS9390 EHV V2 8MP multi sensor panoramic IP camera Vivotek FE9391 EHV V2 12MP fisheye panoramic IP camera PoE Vivotek MS930 EHV 8MP panoramic IP camera PoE Vivotek CC831 HV 5MP panoramic IP camera PoE Vivotek FE912 H 12MP 360 fisheye IP camera PoE Vivotek IB833 HV HTV outdoor bullet IP camera PoE Happy to take sensible offers. Let me know if you would like any more details or specs. Thanks

Don't use global tamper if you don't need to.as 6 days change to fsl and the panel will identify which detector/wires have the issue

For Global tamper you have to break them open to measure and compare to as fitted readings for each pair.... It's a Premier so you could go wire them all FSL/EOL then you can narrow the fault down. It may even fix it if one of the tamper pairs are faulty. Yes you can double check by opening it but that is the Aux Tamper. 10 PIR's on 8 zones is asking for trouble.

JW said open the wiring on the PCB first to see if you get same warning

>>What's wired into the AUX Tamper? All of the internal PIR tampers are daisy chained (serially). So about 10 PIRs. But they only use micro switches for the tamper. Difficult to see how any of those could malfunction. Could also be a loose connection. I just wanted to know if the 'AUX Tamper' on the PCB was the same as 'AUX 0'. As James Wilson said above, I might have to open the case on a PIR to see if I get the same warning. After that, I'll jumper the tamper on the main PCB and see if I get the same problem. If I do then it's an issue with the main PCB and not any of the tamper switches or wiring.

What's wired into the AUX Tamper?

Disconnect it and see if you get the same event message?

Hello, Got a 'AUX 0 Tamper' out of the blue today on a remote LCD keypad. No changes to the alarm, which has been installed for about 17 years. Battery 12 months old. The premier installation manual has this on the event log description: AUX # Tamper An Auxiliary Tamper input from device # has been activated Which doesn't say a lot. Q> Does this mean the Aux Tamper circuit on the main PCB has gone open circuit? picture below. There's another tamper for the bell box, but that has its own event log message, as does the control panel lid. It's an intermittent fault, so hard to trace. Want to make sure I'm looking at the correct circuit. There were no self tests in the event log. System voltage is correct so the regulator hasn't gone either. Thanks.

Morning gents, just a quick update on this one. As most of you accurately predicted, the client completely balked at the quote for pulling new shielded cable. Typical! Instead of fighting the 20-year-old 22/6 wire and trying to smooth out the OSDP latency, we decided to pivot entirely. We are pitching them a mobile credential solution (BLE/Smartphone) to bypass the physical wiring constraints as much as possible for the main entrances. We actually had to put together a bit of a primer for their management on how mobile credentials and BLE access control stack up against traditional cards just to justify the architecture change. I figured I'd share the link to the guide here in case anyone else needs some ammo to convince a tight-budget client to ditch legacy setups: https://www.civintec.com/Mobile-Credential-Access-Control-Systems-BLE-QR-Code-Solutions-for-Seamless-Security Looks like mobile/wireless is quickly becoming the only headache-free way out of these retrofit nightmares. Cheers again for all the input over the weekend!

I'm sure you can balance it with different values. I'd test with different values and see but you might be able to calculate the swr. Can you add capicitance on the run? Your big issue is going to be reflection. Stick a scope on it and look. Or go back or recable

Testing the 2

You hit the nail on the head, @al-yeti. It always boils down to the budget. When clients want the high-end encrypted OSDP readers but refuse to pay for a proper cable pull to support them, we end up fighting these exact gremlins. Cheap wire always ends up costing more in labor! @james.wilson - 2.5 miles is absolutely insane! That really speaks to the magic of using proper Belden twisted pair. You are completely right about the termination resistors; I made sure we have the 120-ohm resistors fitted across the bus. It definitely stabilized the connection, but I think the untwisted nature of this 20-year-old alarm wire is just struggling with the constant two-way polling of the OSDP Secure Channel. Appreciate the sanity check from both of you. Guess it's time to have that tough conversation with the client: if they want that instant card read speed, we need to pull new cable. No magic tricks this time.

Why the dualcom?