Speed and wireless question

If I was to purchase one of these AirPort Extreme Wireless N routers, would I notice a speed difference using wireless G?
Thanks.

jkapple,
That depends on what you'd be comparing the difference to. For example, if your computer client is 802.11g and you've been using an 802.11g Airport Extreme base station, then no, theortically you shouldn't encounter a difference in speed as you wouldn't be taking advantange of the 802.11n protocol. You may also already be capped in network connectivity to the Internet based upon the connection speed provided by your ISP. Other advantages can be had however, and I advise you review the webpage http://www.apple.com/airport for more information.
Regards,
Chris

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IMac (early 2009), 3.06 GHz, ATI 4850 - fan speed and temperature questions

Well, so I downloaded and installed Temperature Monitor and iMac Fan Control - mainly for observational purposes and not for toying around with the fan speeds and I've got some questions. Mind you, I haven't tampered at all with the fan speed settings, just installed Fan Control. Here are my readings (while browsing the internet with Safari and doing a chat via iChat):
Fan Speeds:
CPU fan (desired) 1300 RPM / (current) 1530 RPM
HD fan (desired) 2100 RPM / (current) 2099 RPM
DVD fan (desired) 1300 / 1298 RPM
Temperatures:
CPU Heatsink: 92°F
Internal HD: 108°F
Internal DVD: 95°F
GPU Heatsink: 107°F
Are these, under the circumstances, normal readings?
Thanks in advance for your replies.

Your welcome and no problem. I would say only the Apple engineers can tell you why the fans are set to those speeds however my best guess is the obvious they found those speeds the closest to keeping the temps at an optimum operating temperature. I found when I'm doing graphics intensive work my machine heats up but quickly cools down when I'm done.

Gigabit wire speed and wireless speed

I'd like to hardwire the gigabit ethernet ports on my Extreme to my TV and game console. Assuming the TV and game console support gigabit, will speeds on the gigabit wired network be inhibited by connecting older (802.11g) laptops to the 802.11n wireless network? I know that speeds are limited by the slowest device connected to the network, but don't know if that extends to wireless devices as well.
Thanks for any suggestions,
Ian

Ian,
The whole thing is pretty much a moot point if you are connecting your network to the Internet. Even "g" wireless speeds are 54 Mbps. That's probably quite a bit faster than your Internet connection speed with your provider, correct?
The Internet connection is almost always a severe "choke" point on any home network. 100 Mbps or 1000 Mbps connections won't matter much if the devices have an Internet connection, as is likely with your TV, Game Console, Computers, etc.

Before I buy: speed and printer questions

I am looking to buy a new TC 500gb version to replace my linksys WRT54G. To upgrade the wireless router as well as start a backup system I have yet to ever initiate.
Two questions/concerns come up:
#1) After the initial back up to TC I understand there are hourly incremental back ups - Can that time interval be adjusted, and how long does that back up take (I do now add much data/ files to my main Comp usually) also during those incremental back ups does that affect the computer much, such as if I am playing an internet game, will I lag out while it is backing up every hour?
#2) Setting up a printer through usb port to be accessed by my home network. My HP C6180 all in one works fine being seen through the aged, but battle tested linksys, any reason it shouldn't work with the TC?
Thanks for any insights you might have in this regard.
I have cable isp access, My Main Comp is where the cable modem and TC would be, I have a G4, a G5 and a MBP scattered around the house accessing via wireless.
Message was edited by: Steven Swift

Hi Steven, welcome to the discussions.
After the initial backup (recommend that you use ethernet for this), TC will backup incrementally every hour assuming you will be using Time Machine. There is no way to alter this with Apple software, but a number of users have reported satisfaction with Time Machine Editor, http://timesoftware.free.fr/timemachineeditor/, which will allow you to schedule backups whenever you would like. This might be a good solution if you notice slow downs with other devices during a backup session.
Backups should be relatively quick, but be aware that very small changes in some programs (like Entourage, vmFusion, Parallels) require the entire database to be backed up, not just the small change that might have been made.
The printing question is the most difficult as the boards are busy with users who are having troubles in this regard. Perhaps some other users have used the same HP and can comment. Bear in mind that if your HP is compatible, only the printing function will work through the network. Scanning and other advanced functions are not supported.

Time Capsule as two functions, and wireless question.

Hi,
I've just bought an 2TB Airport Time Capsule and I am a bit curious of the user options of it.
1. Can I use my Airport Time Capsule (5th gen) as both as an external hard disc, and using Time Machine to do backups?
2. Is there any other options using the Time Capsule?
- Currently I have connected the TC to the Internet through my original Wi-Fi router (with an Ethernet cable).
- Then created a new network in addition to my original network.
- What I'm wondering about is if there is any chance of having the TC completely wireless and not having the Ethernet cable connected, only the power cable?
If anyone knows anything, I would be very grateful!
Thank you very much in advance!
Best,
- Nord

MrNord wrote:
Hi,
I've just bought an 2TB Airport Time Capsule and I am a bit curious of the user options of it.
1. Can I use my Airport Time Capsule (5th gen) as both as an external hard disc, and using Time Machine to do backups?
Yes, you can store files on the TC.. it was never really designed to do it.. If you mean by usb no, the TC is always network drive.
You can plug in USB drive to the TC to maintain a separate area for files. That is somewhat safer than loading them to the internal disk. But is slow.
TC cannot back itself up. TM cannot backup network drives. So if you store files on the TC how are you going to back them up.
TC cannot be partititioned.
Read Pondini about using it this way. Q3 here. http://pondini.org/TM/Time_Capsule.html
- What I'm wondering about is if there is any chance of having the TC completely wireless and not having the Ethernet cable connected, only the power cable?
Yes, you can make the TC completely wireless. It will become a dumb client of the existing router. When you setup like this the TC will stop working as a WAP.. it will stop being dual band.. it will stop the ethernet ports working. Basically you will reduce the TC to a hard disk..wirelessly connected to the existing router.
All files copied to the TC will now go at half the normal wireless speed to your normal router due to double hop wireless. It no longer directly possible to communicate with it.. all packets go via the main router.
It is already subject to corruption over wireless.. you will now have it doublely prone to corrupt.
Don't do it.

2006 Core 2 Duo 15" (A1211) memory and wireless questions

Hi all,
I've got a MacBook Pro Core 2 Duo 15", 2.16ghz (A1211 model)
A couple quick questions:
1) When I first bought the computer (late 2006) it had 802.11g compatibility but shortly after apple released a small upgrade that would take it to 802.11N. Never bothered installing it as until now I've only had a g router, but am now thinking of upgrading. I'm on OS X 10.6 now and I read at one site online that Leopard included the 802.11N upgrade? Can anyone confirm this? If not, would I still need to specifically download something to upgrade?
2) Currently I've only got 1GB RAM. Its performance is fine with OS X 10.6 and what I use the computer for. However OS X 10.7 is out now and I know that 2GB minimum is needed for that. However, I've also read that Apple really recommends 4GB ram. While I know that this computer can physically accept 4GB, I also believe I understand that due to chipset limitations only 3GB or a little bit over 3GB can be exposed to the OS. So, question is, is it worth the $100 or so to buy two 2GB modules and upgrade this to use 10.7, or is the performance going to be lousy in this configuration, and better to save the money to put towards a new Mac downt he road?
Thanks in advance for any help or insights.

Re: 1 See this link:http://store.apple.com/us/product/D4141ZM/A
Re: 2 Why not just one 2GB chip?
I have a MBP core duo and it works perfectly. I have installed the maximum RAM and a 500GB HDD. I did get a new one last year because the older one could not handle some video apps, otherwise it does everything else, but just a tad slower that the new one.
Personally if you have no pressing need, keep the MBP you have. I maintain that technological obsolescence is more of perception than reality.
Ciao

Changing speed and price question

I recently signed a two year contract. I have the 15/5 plan and was thinking of switching to the 25/25 plan. But with the upcoming pice increase/speed bump, will I be able to change back to 15/5 and go back to my current price after the price hike?
Currently it looks like it will cost $5 a month more to go to the next speed tier. If I wait to change my speed tier untill after the price increase will it still cost $5 more, or would it be more because of the higher pices?

I just restructured my contract from 35/35 to 75/35 for the same price i was paying,it is still 5.00 more for each speed tier.

CPU Fan Speed and Memory Questions

I"ve noticed recently that my fans sound a little different. When using aperture and sliding some of the image adjustment controls the fan will increase as I'm sliding the controls and stop when I stop.
I've been monitoring with istat pro, and my CPU fan is almost always at 0, I've seen it not at 0 a few times but very rarely.
Readings:
Power Supply: 599
Exhaust: 655
CPU Fan: 0
HD/Expansion: 499
Temperatures seem normal except northbridge has always run a little hot since I got the machine. About 180F
I did the hardware test and the message I got was:
4MOT/1/4000002:CPU_MEM
I'm assuming this means that one of my memory chips is bad but where do I go to find out what this code means? And does this mean there is no problem with my CPU fan or did the test just end when it found this error?

Good news about the RAM. Have you checked to see if the fan is gunked up with dust and dirt or some other obstruction? Could free it up or be the source of a fan failure.
A simple procedure is to reset the SMC (System Management controller). Here are Apple's instructions:
http://support.apple.com/kb/HT3964
The SMC has control over the fans. The reset won't do any harm but follow the instructions.

Questions and answers on DLM, sync speed and real ...

I was confused about some DML details and posted on a BE forum (https://avatar.bethere.co.uk/forum/viewtopic.php?t=43542) and got what was to me an incredibly helpful response from Tom (drsox). I thought it would be of interest to some readers here so copy it below. Once again, many thanks Tom.
1) FTTC DLM applies only between the cabinet and the modem?
>> Yes, as there isn't any broadband / data signal going anywhere further down the line to the exchange if you are on FTTC!
2) What are the different parameters that apply on this hop? I know there is a current sync speed, a current snr, a target snr and an ip profile. Anything else?
>> The IP profile isn't really related to DLM, it just "follows" your sync rate. In the past the IP profile would take up to 3 days to "follow upwards", leaving you with a high sync and awful speeds! This has been changed now on 21cn and "RE-ppp"ing (rebooting the router) would force the IP Profile to update instantly.
DLM changes the SNR target. So where BE have hard coded / set SNR targets such as 3db, 6db, 9db, 12db etc.. They only change upon user request. BT use their DLM system where line instability or line error counts are collected and analysed, the SNR target and interleaving settings are then modified in increments to try and stabilise the line.
This image shows quite well how, over a 6 day period, BTs DLM noticed that my line fault was fixed. I didn't get the full speed back for a week.
3) Is the ip profile the same as the BRAS profile?
>>Yes
4) The DLM keeps statistics of errors etc to dynamically change the ip profile?
>> Changes the SNR target and interleaving for the line which will reduce the speed, and therefor the IP profile.
5) There is a general theory that the DLM is incapable of telling the difference between an error and a modem power cycle, so that power cycling can cause your profile to lower. Is that correct?
>> Yes, if you resync / power cycle your router multiple times in a day it is likely to try and "combat the line errors" and reduce your sync rate by increasing the SNR and / or interleaving on the line.
6) Can other connections and disconnections have the same effect? For example, if I reboot the router (where this is separate from the modem)? Or use the router interface to disconnect/reconnect the broadband?
>> PPP drops (router reboots while leaving the BT Openreach VDSL modem on and connected) won't affect DLM. The IP profile will match your sync rate upon reconnection of the PPP session.
7) If you have a low ip profile, does this mean that the sync is limited to the ip profile?
>> Other way around, if you have a low sync rate then the IP profile will match the sync rate. If you get an awful sync rate and the IP profile follows downwards, then you resync higher but the router "keeps the PPP session open" (which is possible if you resync quick enough) then your IP profile will stay low, even though the sync is high. Until you reboot your router or disconnect and reconnect the PPP session.
8) Can the sync rate change dynamically without a reconnection? If the ip profile gradually rises, will the cabinet force a resync to make sure the customer is actually getting the benefit of the higher ip profile, or must the user intervene with a modem resync?
>> See above - Sync can rise without affecting the IP Profile and the cabinet does not force a RE-PPP.
8) As I understand it, if the ip profile gets stupidly low for some reason, it can only be reset by BT wholesale? This will only be done after a visit to your home and a telephone call from the engineer to the BT wholesale central admin?
>> Mixed reports plus I don't think people understand the difference between sync speeds, line faults, the delay in DLM increasing sync after a fault.. I expect half the reports on the BT forum are not related to a stuck BRAS / IP profile. It is possible for the ISP or a BT engineer to reset the IP profile and possibly DLM training.
9) (8) This applies to all ISPs using BT Wholesale: some may be more willing to force this process to happen on behalf of their customers, but none can cirumvent it?
>> GEA providers (I believe) still have DLM but don't have BRAS / IP profiles unless they implement their own.
10) Who sets the snr? As I understand it, the customer has no direct control. Is this different for different ISPs?
>> Mixed information again, I believe that BT Wholesale give providers DLM override controls and SNR settings but none? (or few) ISPs use this system.
11) Real download/upload speeds are physically limited by the sync rate. They are also naturally limited by local limitations (such as wireless connections), server limitations, and congestion at various points along the route? Any more? The congestion along the route will vary bewteen ISPs as they use different routes with different capabilitues.
>> It is possible for BTs regional or local cabinet network to become congested. Supposedly the minimum speed you should achieve over the BT part of the network is 15mbps. ISPs such as Plusnet, BT etc.. then layer their own "discriminatory" traffic management on top of that (ie, slow down torrents etc.).
12) Real speeds are 'unnaturally' limited by throttling. This will also vary from ISP to ISP. Sky claims to have none, and BT none except for p2p. PlusNet and John Lewis have significant (but well explained)throttling. All the more expensive operators have none.
>> What you said
13) The ip profile affects the sync rate, and therefore actual speeds. Does the ip profile effect actual speeds in any other way?
>> Not quite right. The IP profile directly affects the speeds you can achieve but the sync rate affects the IP profile. The sync rate is determined by the stability and quality of your line and what DLM thinks it can cope with.
14) Many people (including AndrueC above) report real speeds from speedtests that are consistent and not close to the ip profile. These can't be explained by congestion (that would make them inconsistent). They can't be explained by server limitations, as they are consistent accross servers and the same servers give better speeds to other people. They can't be explained by local limitations, too many people claim sudden drops where the local conditions have not changed. They should not be able to be explained by throttling, as they as seen for many ISPs who do not throttle (I don't hold with the ISP lying theory here). What other factors are there that can explain these cases?
>> AndrueC and some other Sky customers have strange symptoms where speeds are around 20mbps rather than the full sync speed. The only logical explanation is either local cabinet congestion, contention between BT and the provider's network (not enough investment by the provider) or artificial traffic management on the providers side. It is also possible that the router that the customer has attached to their line is unsuitable for the higher speeds. For example an old ethernet router may only be able to cope with 20 or 30mbps! A friend of mine has a TP-Link ethernet router running Tomato on a BT 80mbps service but the TP-Link's CPU limitation causes his service to only perform at around 68mbps; he has a replacement router on order. (Obviously wifi will significantly reduce performance).
15) If you get a stupidly low ip profile, how long can you except it to take before it climbs to something more reasonable? (eg in my particular case, my profile is currently around 15Mb, and from BT service line tests should be around 58Mb). And the classic question, is it best to power cycle the modem (1) never, (2) occasionally (how often) or (3) never if at all possible? Mine did jump from 3.5Mb to 15Mb on one power cycle. Was that just coincidence?
>> My FTTC line took about 6 to 7 days to go from 40mbps to 80mbps after a line fault. It is possible that your 3.5mbps to 15mbps increase was the "re-ppp" affecting the BRAS profile and that your sync had slowly been increasing over time.

what a waste of money sending an engineer to "fix a fault" which does not exist. Precisely.
In my original BE post to which Tom so helpfully responded, I began: It seems to me that DLM is an excellent concept with a highly flawed implementation, both technically and administratively. I think that sending out an engineer to fix an obviously flawed profile is the main example of an adminastrative flaw. I understand (I can't remember source, maybe Tom again) that they are sometimes relaxing the requirement for a visit before reset.
Maybe the DLM system is too keen on stability vs speed. This will keep complaints down from many people: most users won't notice speed too much as long as it is reasonable, but will be upset if their Skype calls and browsing are being interrupted too often.
However, it does lead to complaints from people who notice the drops after an incidence (as in your thread that has drawn lots of interest), or who only get 50 instead of 60. The main technical flaw is that DLM can so easily be confused by drops from loss of power, too much modem recycling, etc, and then takes so long to recover.

Can I use more than one blue-tooth device at the same time on IPhone 4S? Like a wireless headsets and speed and cadence sensor for cycling computer, receive the data and listen music simultaneously

Can I use more than one blue-tooth device at the same time on IPhone 4S? Like a wireless headsets and speed and cadence sensor for cycling computer, receive the data and listen music simultaneously

As long as the profiles are different (ex. HID vs AD2P) you will not have any issues. But say if you try to use 2 keyboards at once, it won't work. Or 2 headsets at once. Your scenario seems fine.

Somewhat off topic, wedding lighting and wireless lav. question

Hello everyone! This question is slightly off topic, but I'm desperate for an answer. I've been doing wedding videos for some time now and it's time to upgrade my setup. I'm currently in the market for a good, reliable wireless lavaliere mic, and a good quality on camera light. I use a panasonic DVX100b for all of my footage. For the light I'd like to spend about $400.00 ish or less, but I will spend more if the price jump dramatically increases the performance. I also have about $600 to spend on a wireless lav. system, again I will pay more if the jump in price brings a considerable jump in quality. Can anyone make any recommendations?
Thanks

Gotta go with the Sennheiser Evolution series as well. Although I can't say that the actual mics they ships with are the best, they're not bad and I've had very few issues with the range and reception.
And if you're shooting solo, aside from the mics, make sure you pick up a 2 or 3 foot XLR cable so that you have enough hose to allow you to hook the receiver on to your belt. Beats clipping it to the handle strap.
You can also get a little adapter for the DVX that will allow you to mount the mics on the camera hot shoe on the top of the handle. I'm sure you can get these for just about and wireless you buy.
rh

I have an existing new belkin modem router which works fine with quite a few wired and wireless products in my house. My question is if i buy a time capsule can i put it in another room and wirelessly connect it to the belkin modem router, I would then ju

I have an existing new belkin modem router which works fine with quiet a few wired and wireless products in my house. My question is if i buy a time capsule can i put it in another room and wirelessly connect it to the belkin modem router, I would then just like my macbook pro and (imac future purchase) to wirelessly back up to it???????????

Your will need to perform a Factory Default Reset on the TIme Capsule to clear out the current network settings and then reconfigure it to "join" your wireless network using the AirPort Utility setup application.
To perform the Factory Default Reset on the Time Capsule....
Pull the power cord from the back of the device
Wait a few moments
Hold in the reset button on the back of the Time Capsule and keep holding it an additional 8-10 seconds while you simultaneously plug the power cord back in to the Time Capsule
Release the reset button after the hold period and allow 25-30 seconds for the Time Capsule to restart to a slow, blinking amber light
On your Mac.....
Open Macintosh HD > Applications > Utilities > AirPort Utility
Click Continue
Follow the guided setup and choose the "join" option when it appears duriing the setup
You will need to know the exact type of wireless security that the Belkin router is using to enter this information during the setup of the Belkin. Otherwise, the Time Capsule cannot join the network, and you will receive an error message after the configuration process.

New HH5 and Wireless Speed

Hello All
Just bought a HH5 and set it up last night. The wired connections seem fine and I'm connecting at expected speeds of around 66Mbps down and 17.5 up. However, the wireless speed is poor and giving me only 12Mbps on my Iphone 5 sat right next to the Homehub. I've tried changing to a fixed channel on 5GHz frequency but to no avail. Also, for some strange reason the menu in the HH5 states Homehub 4. I was expecting a firmware update to take place overnight but this didn't happen. So can anyone tell me:
1. Is there a way to improve the wireless speed?
2. When do firmware upgrades take place?
3. Will a firmware upgrade fix the wireless/hub homepage?
Thank you.

I suspect you might have been sold a HH4 either in error or by design! As to the wireless speeds there are many, many things that can affect this that BT will only accept wired speeds as being the true speed. You could be using the HH close to a TV - that has been known to affect wireless speed, microwave ovens (when switched on) can affect wireless speeds. Have you switched off smart wireless on the hub (or something like that). It only uses 3 set frequencies and it could be trying to find the best of a bad bunch of frequencies and failing. Switch it off and select something like channel 13 for the 2.4 GHz band and see if that makes a difference.
Also search this forum for topics such as "slow wireless speeds" and you will find lots of advice on how to try and overcome it.
Mistakes and embarrasing goofs in e-mails are only discovered when you've sent them!

Have the following iMac at home and am contemplating adding a MacBook Air and a 2TB Airport Time Capsule for backup/storage and increased WiFi speeds. My question is this (1) a compatible setup, and (2) will my older iMac slow down the WiFi speeds? Man

Have an older iMac and am contemplating adding a new MacBook Air and a 2TB Airport Time Capsule to increase WiFi speeds. My question is (a) is this a compatable setup and (b) will the older iMac slow the WiFi speeds?
Thanks

Be careful about mixing Time Machine backups and other data on the TC's disk. That will cause conflicts, sooner or later. See #Q3 in Using Time Machine with a Time Capsule for an explanation and some possible workarounds.

Controlling Speed and other Frame Rate Questions!

Hello After Effects Community!
I have a few questions about a specific video situation I'm working with.
I have footage in 720p at 60FPS. I want to slow down sections of the video by easing into slow motion. What FPS should my comp be? should I make the comp 29.97 or 24 and then bring in the 60 fps footage and time remap it?
Basically I want to have it ply at normal speed and slow down a specific part and then have it speed up again. Help!

Your composition settings should be decided based on how the final product is being presented. If you're displaying in a cinema, you'll probably want 24fps. If you're playing on a TV, or via DVD or BluRay, or on YouTube, you'll probably want to use the standard frame rate for the country you live in - 29.97 in the US, Japan etc. 25fps in Europe, Australia, New Zealand etc. If you're doing some kind of high-end output, you may have the facility to use a high frame rate, but I suspect you'd already know about that if it were the case.
Interpret the footage in AE at its correct frame rate (60fps in your case), then use Time Remapping to adjust the playback speed.

Speed and wireless question

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