datadiffusion

TBH SysQ std BNCs are actually OK, I think anyway. At the end of the day if you want mil spec BNCs branded Tyco etc... from CPC or RS is the place to be, £1 a pop min thou.

He would be when it fails halfway through the next year and causes a £70 callout, too...

It's the second one they've done, I was tempted but just changing batteries yearly on most devices now anyway.

Nope, the keypad was never designed to be disconnected on a live panel, and I'd bet the NVM is corrupted, as it often is on this model. It's a 9800 / 9800+ by the way, 9827 refers only to the keypad itself.

Battery flat and/or corrupted NVM It's engineer time.

Depends on what you need. I have a pair of official Cooper twisted pair converters for the Menvier M series that I'm pretty sure boosted distance to a claimed >1Km But no idea about modern systems. What's the requirement?

Yes, always, don't just ask us search for the Cybergibbons website! But... anyone who knows anything about electrical work will know fixed wiring is just that and for everything else you should use flex, it's a bit of a fundamental and a really good way to spot amateur work, especially where flex is tacked around the room as an unfused fixed wiring extension to a 32A ring main by some idiot. We do have a DIY section, but it is alarms that it was envisaged being used for. Your questions *are* valid, and were answered, but still demonstrate a potential to do something unsafe.

I can never remember the numbers, it was whatever Part 1 and Part 2 Electrical Installation was in '95 In those days lecturers had discretion so I only had to do exam and practical for Pt 1, then studied for Pt 2 'properly'.

Usually in a learning environment, with someone qualified supervising or from a proper book, not from a forum 5 minutes before the job, that's the issue. Admittedly I did my own house having read many, many books on the subject, but didn't touch anyone elses till I'd done my C+Gs

innit

Agreed, these are 'worrying' questions but if that was the case, the OP wouldn't be asking. Not giving the information can be just as harmful IMHO.

I think it's more that most fail to see how you could make any money at that price without lashing it in.

1. Flex, I use rubber type H0R7N style 2. Totally dependent on panel, but 3A is a standard value. 3. From a security POV yes, from a latest regs POV its debatable.

By half a day you mean 4 hours I guess. On your own or with a mate?

Yes, it's a bit like these companies that offer fullbody CT scans with no preexisting symptoms. Who's to say you won't see the same interference on another site that never has and never will have issues?

Software Defined Radio

Went to a job today to quote for replacement, 10 year old sparky special 'Challenger' system with PIRs you can literally creep past by walking slowly. One of them is TOUCHING the central heating pipe. The drafy unheated garage has a £2.99 special PIR, funny enough HH states 'it was disabled early on'. Luckilly a recommendation and the householder went ahead on my replacement estimate alone, the only thing left will be the wires. 50% of the remaining are facing windows (despite the fact sparky had full and free access when the house was totally gutted inc. plaster, tit) and they don't want to redecorate, but e-line DTs will easily survive that IMHO.

Not sure, you might get them cheap in Libya?

I would have thought quality gear would have been OK - the wireless chip scanny uses was developed intially by a division of GEC-Marconi (their Essex based EEV division) which did a lot of commercial spin offs from defence work, was possibly over specced and/or benefited from the input of the sort of scientific genius probably far more than is needed for the average 'consumer' product. Texecom is a lot newer so no doubt designed with 4G in mind from the start, whoever the RF chipset provider. However, perhaps Honeywell gear, although I'd have thought it decent, has it's RF origins in a US product that just happens not to be going down so well with 4G? Risco, I have no idea. That's all totally off the top of my head. Chinky stuff will undoubtedly suffer the most, even if the RF IC sections are blatent clones of EU designed chipsets. of vague interest - http://rsgb.org/main/files/2012/11/EMC02-final.pdf

Certainly it's got TV suppliers paranoid enough to filter and modify a lot of their gear...

If you're a CSL customer or have ever called them about *any* product I'd say it looks like you will be.

Nope. Since I never registered, it's clear the bulk of the database is just a copy'n'paste of all existing customers?

Marvellus innit?

I have been sent a free sample sim - I didn't register though, so I wonder if the same database is used for internal purposes (unlikely, but possible) Have a look for 'Casa Security'...