Author Topic: Why you should never let anyone in your shop alone  (Read 7161 times)

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Offline Cyberdragon

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Re: Why you should never let anyone in your shop alone
« Reply #25 on: September 03, 2016, 07:13:45 pm »
i replaced all my networking equipment with my own, the modem, router, etc. When i replaced the ISP router with my own i lost 2ms of internet latency and thats significant. The router was very basic and seemed like it was well designed but it seems to have higher latencies than my modded 36 core router.

I've heard of the horrors of american telecoms like at&t and other providers. Cable ISPs are usually greedy giving you really bad upload-download ratios. If in the UK Virgin media is a prime example advertising a 10-1 ratio but in practice it is 20-1 in order to keep you content happy but unable to properly utilise the network for your own use like your own vpn, file and other services that routers nowadays support.

I have absolute shit internet, like 0.1MBs both ways. That's why I can't do youtube, I can barely play online games. Idk how much we pay for it though.
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Offline Kleinstein

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Re: Why you should never let anyone in your shop alone
« Reply #26 on: September 03, 2016, 07:39:35 pm »
For services that do intentional emission (e.g. WiFi, GSM, Dect) the power levels are quite high near the source. So it is not uncommon to see (or hear) interference, even with good quality gear. For example I have a Sony digital radio that pics up some signal form a neat by (e.g. < 0.5 m) GSM Phone, quite loud. My 1.st mobile phone (GSM based) even picked up some military radio signals - even when not making a call, when to close - so did the radio in the car. Must have been quite a strong signal.

As the sending power is usually well checked, it is more likely that the audio amplifier is at fault and pics up more than it should be. It may also be that they are just to close together and interference is normal at this close range. So both units could be within EMC specs but just to close together.
 

Offline Ampera

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Re: Why you should never let anyone in your shop alone
« Reply #27 on: September 03, 2016, 08:27:27 pm »
i replaced all my networking equipment with my own, the modem, router, etc. When i replaced the ISP router with my own i lost 2ms of internet latency and thats significant. The router was very basic and seemed like it was well designed but it seems to have higher latencies than my modded 36 core router.

I've heard of the horrors of american telecoms like at&t and other providers. Cable ISPs are usually greedy giving you really bad upload-download ratios. If in the UK Virgin media is a prime example advertising a 10-1 ratio but in practice it is 20-1 in order to keep you content happy but unable to properly utilise the network for your own use like your own vpn, file and other services that routers nowadays support.

America is a big place. Bigger than the entire EU 2,3 or even 4 times over. To say the internet sucks anywhere in the US or to even generalize us is like saying internet everywhere in the EU sucks.

I live in the Albany area of NY and we are a shithole compared to what we were. Albany has nothing in it, Schenectady has the open wound GE made when they left us and troy is a damned ghetto.

And yet Verizon telecoms provides 90/90 Up down direct attach fiber with VoIP service and cable TV including some Clear QAM service for I think around 120-150 USD a month. That is pretty damned ace if you ask me. And in some places you can get Gigabit INTERNET for about the same price with FREE INCLUDED VoIP service and a 4 Tuner DVR from Google Fiber even though it's only in certain more southern cities.

If you can get fiber, it's probably gonna be pretty good, but DSL/Cable TOTALLY sucks. You will get bottom rank speeds, no real upload, and unreliable service for a lot of money from people like TWC, who then
blast you when your contract is over. I seriously got about 24 Mbps down with them and an even sadder upload until FiOS came on the scene with blazing fast service.

So really it depends on who you are, where you buy it, what year it is, and where you live, just like in Europe. However on a recent trip to Waldbrol, Germany to visit family, we had pretty good internet from T, so idk.
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Offline G7PSK

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Re: Why you should never let anyone in your shop alone
« Reply #28 on: September 03, 2016, 08:45:42 pm »
In the good old days valve (tube) amplifiers were always in a metal box very often with the valves in their own metal can, all well earthed to boot, unlike the modern craze to have all the valves out in the open. 
 

Offline Nerull

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Re: Why you should never let anyone in your shop alone
« Reply #29 on: September 03, 2016, 09:54:40 pm »
I'm curious how people expect a radio to work without emitting radio waves.

If your tube amp picks up 2.4GHz transmissions and turns them into audio, that's really not the routers fault.
 

Offline Planobilly

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Re: Why you should never let anyone in your shop alone
« Reply #30 on: September 04, 2016, 07:11:36 pm »
If you want to talk about who is at fault then it is simple. I am! I ordered the internet service. I did not supervise the installation of the the equipment in my shop. I built the amp in question. I lacked the skill set to find the answer to the issue in a short period of time. I did not provide sufficient shielding to prevent such issues.

I take responsibility for events in my life and I am not dependent on governmental regulatory agencies to protect me. The "blame game" is seldom useful in dealing with issues. This idea that we should have cradle to grave protection provided by the various governments is counter productive at best in my less than humble opinion. At worst that  idea provides for a false sense of security that can cause issues that are much more problematic that some frustration dealing with an amp issue.

Perhaps because I have flown aircraft all over the planet and sailed boats single handed across oceans I have a different perspective on " who is at fault". 

Many products and services we buy in today's world are significantly less that perfect. For me to have the expectation that things I buy will always meet the regulatory requirements is uninformed at best.

I learned a few new things while dealing with this issue. I would have prefered to get that education in a less painful way but such is life....lol

Cheers,

Billy
 

Offline VK5RC

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Re: Why you should never let anyone in your shop alone
« Reply #31 on: September 05, 2016, 12:12:58 pm »
Gheeesz , if my internet speed was better my daughters would download even MORE, I couldn't afford it !   HiHi.

With three teenager daughters, my shed/shack/lab is essential, it is not that infrequent  my wife asks if she can join me out there! :-DD
Whoah! Watch where that landed we might need it later.
 

Offline System Error Message

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Re: Why you should never let anyone in your shop alone
« Reply #32 on: September 05, 2016, 01:04:34 pm »
Gheeesz , if my internet speed was better my daughters would download even MORE, I couldn't afford it !   HiHi.

With three teenager daughters, my shed/shack/lab is essential, it is not that infrequent  my wife asks if she can join me out there! :-DD

Not to mention you will need more storage to download more too
 

Offline Jeff_Birt

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Re: Why you should never let anyone in your shop alone
« Reply #33 on: September 05, 2016, 01:54:54 pm »
The cable guy came and installed a new, faster, cable modem a few months ago. The old unit was the size of a book, the new unit is the size of a 1990's VCR! It blocks the RDP port and they won't admit the problem and I finally got tired of dealing with them and use a different program to remote in (which is not as nice as what is built into Windows).
 

Offline System Error Message

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Re: Why you should never let anyone in your shop alone
« Reply #34 on: September 06, 2016, 01:15:09 pm »
The cable guy came and installed a new, faster, cable modem a few months ago. The old unit was the size of a book, the new unit is the size of a 1990's VCR! It blocks the RDP port and they won't admit the problem and I finally got tired of dealing with them and use a different program to remote in (which is not as nice as what is built into Windows).

You can buy modems for cable. Netgear sells decent ones but the prices may not be to your liking. As long as it supports the configs used by your ISP you can use a different modem. There have been SFP modules for cable as well which is helpful to people like me who have really nice routers but i dont use cable because of their greed (here in UK virgin media has some weird speed management so if you download loads in a small amount of time your speed is throttled. their uploads are only half as claimed.)

Here in UK even though BT only sells half of what virgin media offers with the same advertised uploads, but virgin media's upload speeds are half of claimed making BT's VDSL offering having 2x better upload. That upload to download ratio is very important as its a measure of how much can you actually utilise your own internet (like hosting your own personal vpn and file server on the router, streaming games) rather than being a content consumer only.
 

Offline madires

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Re: Why you should never let anyone in your shop alone
« Reply #35 on: September 06, 2016, 01:54:09 pm »
We all love those "x Mbps*" ads, with the "*" meaning "up to, if you're lucky".
 

Offline rdl

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Re: Why you should never let anyone in your shop alone
« Reply #36 on: September 06, 2016, 03:23:03 pm »
The monthly lease charge in this area for a modem from Comcast is about $8, but you can buy a modem for less than what a year of leasing will cost. That's what I call a "no brainer". I actually paid less than $70 for a Motorola (now Arris) SURFboard at the local Walmart store.
 

Offline AG6QR

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Re: Why you should never let anyone in your shop alone
« Reply #37 on: September 06, 2016, 04:30:49 pm »
Others have addressed the technical side, but legally, the router is almost certainly certified under part 15 of the FCC rules, and it probably carries a sticker on the bottom that says:

"This device complies with Part 15 of the FCC Rules.  Operation is subject to the following two conditions (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation."

That means that, legally, part 15 devices are very low on the totem pole.  If there are problems, the legal solution is to stop using the part 15 device unless and until the owner of the Part 15 device resolves the problem technically, perhaps by going back to the manufacturer.  If it causes harmful interference, the owner of the device must shut it down and not operate it until the cause of the interference is corrected.  If it receives interference that causes it to malfunction, the owner has to deal with it or shut it down -- the owner can't demand that the other device be shut down, or somehow reduce or eliminate the emissions that are causing the interference.

When you are the owner of both the interfering device and the device receiving interference, this legality is pretty much moot.  You can decide which device to shut down until the problem can be dealt with technically.  It becomes more relevant when a Part 15 device has a conflict with a neighbor's device operating under a different part of the regulations, such as a ham radio station, or a business band radio, or a broadcaster, etc.
 

Offline Planobilly

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Re: Why you should never let anyone in your shop alone
« Reply #38 on: September 07, 2016, 04:57:17 am »
Actually, this little RFI monster I now own will be a fun toy to play with. I have several friends who own several high dollar boutique guitar amps. They are entirely way too enamored  of their expensive toys. They bring them over often singing the praises of their super cool stuff. Time to take them down a notch or two...lol  >:D

Next time they come over I will have the router hid and point out how their high dollar amp really sounds like crap...lol  Well...yes I know that is a diabolical  plan but if you knew these guys you would surely see the humor in my plan... :-DD

I feel pretty lucky actually. Not everyone has his own nefarious RFI generator... 8)


Cheers,

Billy
 

Offline Ampera

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Re: Why you should never let anyone in your shop alone
« Reply #39 on: September 07, 2016, 05:12:44 am »
Actually, this little RFI monster I now own will be a fun toy to play with. I have several friends who own several high dollar boutique guitar amps. They are entirely way too enamored  of their expensive toys. They bring them over often singing the praises of their super cool stuff. Time to take them down a notch or two...lol  >:D

Next time they come over I will have the router hid and point out how their high dollar amp really sounds like crap...lol  Well...yes I know that is a diabolical  plan but if you knew these guys you would surely see the humor in my plan... :-DD

I feel pretty lucky actually. Not everyone has his own nefarious RFI generator... 8)


Cheers,

Billy

If you want to take it up a notch make an RFI generator and hide it in their house. Best prank ever.

EDIT: Make sure they have a non RF phone or you have a way to turn it of remotely in an instant so if he needs to call 911/999/112 he is safe.
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