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Hi,
the Kaiser has USB-speed specified with 480 Mbit, but the speed to put onto it some MP3s via ActiveSync is not much faster than with my Magician (USB1.1) before. If I put in my computer directly the MicroSD card (max 5MB/sec) it is much faster although 5MB/sec << 480 Mbit. So the weak point is not the card. Is there any idea to increase the speed filling my card via direct USB connection ?
Thanks in advance !
Best,
Hugo
Your usb data speed depends on what your com port is set to. if you have alot of usb ports then they share the bandwidth between them. so you may only get 20% of your actuall bandwidth if you have a few other usb devices sharing the bandwidth. you can go to your device manager on your pc and increase the percentage your com port uses of the bandwidth
Thanks for your answer,
and you may be right, if I had a lot of devices conncted to my PC. But I have not. The point is: If I put the microsd into an USB adaptor and connected to the PC, it is quite fast, if I took the Kaiser connecting it ti the same USB, it is slow.
Any other thoughts?
Best,
Hugo
thehugonline said:
If I put the microsd into an USB adaptor and connected to the PC, it is quite fast, if I took the Kaiser connecting it ti the same USB, it is slow.
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This holds true for all PDA devices connected via USB...not just the Kaiser...activesync may be the bottleneck.
Ok,
if ActiveSync may be the bottleneck, how do you work around this slow copy-process? With CardExpord it is quite faster than with ActiveSync (thanks for the hint), but still far away from the limit :
To copy 58 MB from PC to Magician via CardExport - it needed 94 sec
58 MB from PC to Kaiser via CardExport - 69 sec
58 MB from PC to Kaiser via ActiveSync - 235 sec
58 MB from PC to Card via USB Adaptor - 12 sec = 39 MB/ sec
Anybody any idea to increase the speed of CardExport, there is still much room left ?
Thanks for that discussion!
Best,
Hugo
Most SW connecting to your PDA for file transfer do it through Activesync which as stated before is a bad bottleneck (its sloooow).
You are also using the file handling system of the PDA via this method and any number of background tasks will slow this down.
WM5torage (there is a thread running on here) gets around using Activesync so it may be worthwhile contacting the author to see if this will work for you or wether it could be modified for your purposes.
Hope this helps.
Read the specs carefully. It says "USB 2.0 Full Speed". Don't confuse Full Speed (12 Mbps) with High Speed (480 Mbps). What HTC is doing when they say this is commonly called "deception"!
Has anyone tried ActiveSync over Bluetooth to test whether the Kaiser supports EDR?
Ahhh, abu, you seem to be following me to flame!!
Let's just help people please???
EDR (Enhanced data rate) is fully implemented on this device as was not the case with the TyTn (Hermes) and you will find some of my old threads in there about this very subject that you have placed within this thread ( not whatsoever to do with the first post I may add!!)
OH flippin eck! the wine is taking over.
even usb harddisks max out at about 30MB/sec
and as pda's cant keep up with fast flash cards
it's silly to believe that pda's could keep up with
usb2 speeds
Rudegar said:
even usb harddisks max out at about 30MB/sec
and as pda's cant keep up with fast flash cards
it's silly to believe that pda's could keep up with
usb2 speeds
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I love your sig file lol...
Hey good discussion,
I am a bit disappointed of the advertised 480 Mbit (ok in manual there is mentioned USB 2.0 full speed) but I can only see an advatage of 25% against my old Magician with USB 1.1. and even 12 Mbps (USB 2.0 full speed) should result in douple speed as the measured. I did not expect 480 Mbit, but a bit more speed, than currently offered.
Best,
Hugo
well chicks dig it
well some would be bound to somewhere somehow
Farsquidge said:
Ahhh, abu, you seem to be following me to flame!!
Let's just help people please???
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Sorry Farsquidge, that my comment about video driver issues was spiced with a pinch of sarcasm. But here I am trying to be purely factual.
EDR is clearly mentioned as supported. I haven't tried this myself yet. But this will probably be slower than ActiveSync over USB as Bluetooth 2.0+EDR is 3 Mbps compared to Full Speed USB at 12 Mbps.
thehugonline said:
I am a bit disappointed of the advertised 480 Mbit (ok in manual there is mentioned USB 2.0 full speed) . . .
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Note that they never advertised "480 Mbit". When they say Full Speed then that means 12 Mbps. That they throw in "USB 2.0" in front of this is IMO not entirely honest.
abubasim said:
Sorry Farsquidge, that my comment about video driver issues was spiced with a pinch of sarcasm. But here I am trying to be purely factual.
EDR is clearly mentioned as supported. I haven't tried this myself yet. But this will probably be slower than ActiveSync over USB as Bluetooth 2.0+EDR is 3 Mbps compared to Full Speed USB at 12 Mbps.
Note that they never advertised "480 Mbit". When they say Full Speed then that means 12 Mbps. That they throw in "USB 2.0" in front of this is IMO not entirely honest.
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Yep, it could be taken as misleading.
I have never actually synced with BT as I only have my usb cable at work but I have just tried it and it seems much faster than cable connect. May just bring my charger from now on!
USB speeds are the maximum theoretical badwidth of the hardware, and are much highe than what can actually be achieved... Throw in ActiveSync, and USB speed is virtually meaningless...
Understood,
USB 2.0 was missunderstood as 480 Mbit by several (!) professional journals and websites testing mobiles and PDAs and -reading that- by me. Ok my mistake - next time I will directly come here and look for spec...
What I read in the threads above is:
"Mobile has USB 2.0, but do not expect 480 Mbit as it's only full speed, but don't be silly to believe to get real 12 Mbit as there is a big difference between hardware and spec. You really have to be satisfied, if you get real 6.5 Mbit, which is 25% faster than the USB 1.1 Magician."
In the end I am happy, not to get slower...
Thanks for discussion,
Best
Hugo
i mean,when i use to transfer files from my jade to any other mobile the maximum transfer speed is 24-38 kbs,whereas when i receive files from non htc device like even from a cheap nokia mobile, than the speed is very fast,dont know how much but at least 100-150kbs ,and in blutooth 2.0 the transfer speed supported is 2.1mbps ,so is there any way to increase bluetooth transfer speed
bluetooth problem
GaganPla said:
i mean,when i use to transfer files from my jade to any other mobile the maximum transfer speed is 24-38 kbs,whereas when i receive files from non htc device like even from a cheap nokia mobile, than the speed is very fast,dont know how much but at least 100-150kbs ,and in blutooth 2.0 the transfer speed supported is 2.1mbps ,so is there any way to increase bluetooth transfer speed
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same problem for me too...
same here too
bluetooth really sucks in htc ,even in htc touch diamoind 2 same problem
The transfer speed depends on many factors, the distance between the two devices, the brand of other device, the response time and memory speed of the receiver, the running applications, ... etc.
i think you have to insure about these factors before you believe that you have a slow Bluetooth speed.
I have a pc installed in my car, and rather than use usb tether i wanted to tether via bluetooth. Its not like the 1mbps BT connection is gonna bottleneck my data connection.
Anyway the only kernel that iv found to support this is the one posted by google with the wireless tether app.
Is there a better kernel that supports this?
With only 3 days using other kernel and bluetooth tether i simply cannot cope with the speed difference compared to Cyano
BUMP
Is there any way to add this feature to a current Kernel or does it require a certain amount of coding knowledge
I connect Galaxy Note to my 802.11n AP
But the connection speed only 65mbps
My desktop PC connection speed is 270~300mbps
Why Galaxy Note Wifi speed is so slow?
paladinlin said:
I connect Galaxy Note to my 802.11n AP
But the connection speed only 65mbps
My desktop PC connection speed is 270~300mbps
Why Galaxy Note Wifi speed is so slow?
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You need to understand how 802.11n works. To achieve 300mbps speed, you will need 2-3 spatial antennas which can be found on modern laptops with Intel Wifi chipset (such as 6300). Our galaxy note has only one antenna (should be 1 for each radio band (a/n, b/g/n), but it is "N" compatible. So your speed is actually pretty good on a single antenna.
Unfortunately this is a case of the manufacturer misleading it's customers (tbh I would say out right lying to us).
As the above poster mentioned the note is compatible with N, however it can not support N speeds, as far as I have seen all phones that claim 802.11n are actually limited to 65mbps. So really are not 802.11n at all, rather just a little faster than 802.11g.
Although having said that unless you are transferring huge files across the network, streaming multiple FullHD streams at the same time, 65mbps is going to be sufficient.
its really misleading, i got upset when found out, also i have the impression that the battery drains faster on n without giving me any faster speed than on bg, maybe one day someone builds a phone with real fast wifi
felixjai said:
You need to understand how 802.11n works. To achieve 300mbps speed, you will need 2-3 spatial antennas which can be found on modern laptops with Intel Wifi chipset (such as 6300). Our galaxy note has only one antenna (should be 1 for each radio band (a/n, b/g/n), but it is "N" compatible. So your speed is actually pretty good on a single antenna.
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For further detail on this issue I found this post helpful
I have the same issue with a Galaxy Tab 10.1
does anyone know if it is the same reason ?
how many antennas has is and what should be the max link speed ?
I have a wireless N router, and with my desktop (that's connected via wifi, I have 2, one wifi and one RJ45) I get 300 megs (connection speed) and when I connect via FTP From my phone to my desktop to download files or sync files, I get about 2.7 megs. I'm right next to the router (about 8 feet, clear sight) and the desktop to which I'm syncing is connected via LAN.
I also have this question about what need is for that on a phone. I can view HD videos from Youtube though my slow ADSL and the normal WiFi. You only need 1 - 1.5 Mbps for that.
Even if you were streaming 1080p with 5.1 channel sound, you don't need 100 Mbps.
thelestat said:
Although having said that unless you are transferring huge files across the network, streaming multiple FullHD streams at the same time, 65mbps is going to be sufficient.
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I use USB tethering via a USB 3.0 port and also access to the hotspot tethering while at home. My question is which is better for download speeds. My PC is wifi capable and also, as earlier, I have it via USB 3.0.
The reason I ask is that sometimes I feel tethering slows down. I use it via PDANET.
Have you run a speed test? Check when you think it's normal and when you think it's slow. fast.com gives you the most consistent results.
I use WiFi and I've noticed it's pretty consistent.