15 Bucks SDR with DVB-T USB stick (2MSample IQ ) :)

A wonderful hack to play with:
Search the youtube for
RTLSDR or SDR#
Just tried it with my 14.95EUR LogiLink USB DVBT stick, Zadig driver and SDR# (nightly edition) on W7. A software defined radio spanning <70MHz to >1GHz with 1MHz bandwidth
Nice to poke for EMV issues, listening to FM radio or sit in the plane and listen to the tower/pilot
USB sticks with certain REALTEK USB DVB-T decoder IC and some types of down mixer chips can be switched to a mode where the raw 2MS/S 8bit IQ data is send over the USB
I have no experience with DLL calls, but would love to have a LabVIEW link to that.
http://hackaday.com/tag/rtl-sdr/
http://www.youtube.com/watch?v=V73q1p1yOHw
http://sdrsharp.com/
Greetings from Germany
Henrik
LV since v3.1
“ground” is a convenient fantasy
'˙˙˙˙uıɐƃɐ lɐıp puɐ °06 ǝuoɥd ɹnoʎ uɹnʇ ǝsɐǝld 'ʎɹɐuıƃɐɯı sı pǝlɐıp ǝʌɐɥ noʎ ɹǝqɯnu ǝɥʇ'

Darin.K wrote:
Glad I got my old Elonics E4000 when I did, they are apparently discontinued.
According to this table
Tuner
Frequency range
Elonics E4000
52 - 2200 MHz with a gap from 1100 MHz to 1250 MHz (varies)
Rafael Micro R820T
24 - 1766 MHz
Fitipower FC0013
22 - 1100 MHz (FC0013B/C, FC0013G has a separate L-band input, which is unconnected on most sticks)
Fitipower FC0012
22 - 948.6 MHz
FCI FC2580
146 - 308 MHz and 438 - 924 MHz (gap in between)
Source: http://sdr.osmocom.org/trac/wiki/rtl-sdr
the E4000 has the widest possible range ( I got mine for 10EUR incl shipping and a FC0013 is also flying around)
However, he HAM guys prefer the R820T, lower range, no gaps and said to be the most sensitive ....
“Buy a $10 radio and a $100 antenna” - Old ham radio saying.
Greetings from Germany
Henrik
LV since v3.1
“ground” is a convenient fantasy
'˙˙˙˙uıɐƃɐ lɐıp puɐ °06 ǝuoɥd ɹnoʎ uɹnʇ ǝsɐǝld 'ʎɹɐuıƃɐɯı sı pǝlɐıp ǝʌɐɥ noʎ ɹǝqɯnu ǝɥʇ'

Similar Messages

Problem with T60 and USB Sticks

All -
I can't understand it but I have a huge problem with USB devices and my T60.
EVERY USB device works 100% fine - despite of USB memory/HDD/other memory devices.
Neither USB HDD or USB Sticks nor a SD drive via USB - no media is accecpted.
I always get back: "Media not formatted".
If I do format everthing works - but only with this notebook.
So I am not able to share data with other computer - or not able to get my pics from my cam...
Please can you help?
Thank you very much in advance,
iBigfoot
Message Edited by ibigfoot2008 on 09-05-2008 10:04 AM
Message Edited by ibigfoot2008 on 09-05-2008 10:05 AM
Message Edited by ibigfoot2008 on 09-05-2008 10:05 AM

I hate to say it, but I agree with carbon_unit, this sounds like a Windows problem.
As a long shot you could try uninstalling all USB hubs in Device Manager, re-install the Chipset Drivers and restart the sytem to allow the USB hubs automatically installed again. I doubt this will help, but it's all I could think of.
Andy ______________________________________
Please remember to come back and mark the post that you feel solved your question as the solution, it earns the member + points
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Bluetooth with D-Link USB-Stick DBT-120/122

Hello,
Apple and users recommend for Bluetooth connections the D-Link USB-Stick DB T-120. I ordered this stick and got the DBT-122. On the D-Link website the DBT-120 is no longer available but the DBT-122. Are there experiences with this new version? Are they compatible?
Thank you
Rolf
G5 Mac OS X (10.4.3)
G5 Mac OS X (10.4.3)

Hi, roma, Will, and Alexander —
The Apple Store has D-Link DBT-120 adapters in stock. I'd give you a direct link, but for some reason it may "time out." Follow links to Mac Accessories »» Airport & Wireless »» "D-Link DBT-120 USB Bluetooth Adapter." If not in the U.S., there's a pull-down menu at the bottom of the page to other locales.
In my experience, the Apple sales staff won't specify the version (or in D-Link lingo, the "Revision") — although if you push, you'll be transferred to a tech. who assures you that all products are tested to be sure they work. Duh...
But I think I can give you an idea on that: there's a ~new brick-and-mortar Apple Store in my town; so I went and checked last week. Their stock are all D-Link DBT-120 Rev. B3 adapters.
Does this help?
Regards,
Dean

IOS4.2 kills Camera Kit operation in combination with USB-Sticks and more

Hi guys,
When I decided to go for an iPad, one of the main reasons why not to stay with Microsoft was the connectivity in combination with cameras and USB-sticks.
Well then, the update to iOS4.2 killed this because the software seems to lower the max.current limit from 200mA down to some 20mA. This "unfriendly" action by Apple is in my opinion fraud. I bought a lot of accessories to work with the iPod and all of them I can now dump into the trash cane, because Apple is doing the same ignorant "politics" to consumer just like their biggest rival Microsoft.
This is company arrogance in excellence....
...never again an Apple product, that was is, over

I'm experiencing the same problem and Apple is jacking me around. A great product but behind the phone are no customer service.
Bring back the true IPAD and apple fix the problem.
Apple can read the Dissuasions and do something about it.
Unhappy customer too

Booting from an USB stick with an old BIOS using a boot CD

Hi
I use larch to build a customized live-usb system, and I'm pretty happy with it.
The problem is that I can't boot it on some old computers, with a BIOS that :
Doesn't support booting from USB devices
Doesn't support accessing USB devices
This mean, that, when using a CD with GRUB, the USB stick cannot be seen by GRUB.
That issue is discussed in the Ubuntu help : https://help.ubuntu.com/community/BootFromUSB
As you can see, I have problem #2, so my option is to use Linux USB drivers to boot from the stick.
kernel /boot/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper noprompt cdrom-detect/try-usb=true persistent
The only problem is that, this seems to be Ubuntu-specific, and I don't know how to do that in Arch Linux : do I need a custom kernel or something ?
I tried searching for "cdrom-detect" in the Linux Kernel Documentation, without success.
Thanks
Last edited by mickael9 (2010-09-29 20:08:53)

I use Plop bootmanager to boot from usb cause my PC cant boot from usb because of BIOS
http://www.plop.at/en/bootmanager.html
I actually use a older version that seems to work better than newer one
link to mine> http://multidistro.com/downloads/plpbt
grub legacy entry
title Plop
root (hdx,x)
kernel /boot/plpbt
grub2
menuentry "Plop" {
set root='(hd0,1)'
search --no-floppy --fs-uuid --set e6adb195-3201-42f0-b6d6-f175abe1912c
linux16 /boot/plpbt
see if that works

Stop usb stick to launch installer

Hello,
I am using Mavericks together with a UMTS usb stick. When I stick it in, it opens automatically the installer of the software of the stick. As I do not use this software, I want to disable the launch of the installer. How can I do this?
Greets

If it is indeed a USB power issue, it can be resolved by using a powered USB hub. Maybe you have a friend who can borrow you one to verify if the problem is gone? If not, you can buy one at a store with a decent return policy.
Don't know if you know this, but the USB ports on your mac share the same bus, they're not really separate. Think of a hub built in. It can deliver 900mA in total (which is almost doubles the USB2.0 500mA spec) (I assume you bought a recent mac mini with USB3.0, as you didn't state your model)
If it draws too much power it's indeed strange that you don't get the alert though.

Help needed after "repairing" usb stick -16gb

Hi there,
currently have a problem with my Lexar usb stick, approx. 2 years old, 16gb stick. I went for the usual cleaning method of removing files, and checking sizes of folders etc one day, and then decided to check a folder, right clicked and went the usual "get info" ....it started to think...and then ejected the usb stick. Plugged it back in, and did the same thing...same result. So the third time i plugged it back in and decided to do a repair disk in Disk Utilities.
It ran its course, and then it ejected by itself, thinking it was done its job. okay....so i unplug it from the side of my Macbook Pro...running Snow Leopard...and then plugged it back in...and nothing came up...
Usually a little light on the usb stick lights up, but nothing happened....tried plugging it in a few times, nothing.
Tried a variety of PC computers....the only thing i can see is that the disk keeps ejecting itself from the device manager....but i cannot mount it or anything.
I need help, as there are crucial files on it.
Also, when I try to do a boot to windows from Mac, when you hold option/alt down, it thinks and keeps thinking but never shows the drive. ....assuming its dead...by why can windows at least see it, just not connect it as a drive.
Whenever I try running recovery programs it does not find it.
so again, I cannot do much, but would really like to just put it out there for anyone who has successfully taken care of these problems in the past.
Thank you for anyone who helps me out.
much appreciated.
I've tried running Linux as well, but not too familiar with it...as the usb stick does not even connect there either.

USB stick is Flash memory you should not delete files often, the only thing you should if you need to free space on it is FORMAT.
You can try and connect it, Disk Utility should see it. Do erase and use format FAT32.
If Disk Utility does not see it, try the same on a windows PC; if that does not work either... gone:

Server baremetal KVM hypervisor on USB stick

A while ago I set up a micro-lab using vmware's ESXi (3.5) as per this blog post:
http://www.techhead.co.uk/installing-vm … -quad-core
Is anyone doing something similar using a KVM hypervisor and could share a quick how-to / summary of what they did to get that working?

Yeah, ProxMox is the kind of thing I was thinking of.
As it happens I've made some good progress...
I followed the guide for installing Arch on to a usb stick, thank you wiki! Booted the HP server with a live CD and installed to the 1GB usb stick directly, what was pleasing was the ability to say bye to FAT32 and install boot as ext2 and / as ext4, skipped swap for now based on various comments about it not being necessary for a hypervisor (anyone beg to differ?). The image on the key ended up being quite large i.e. 890MB so I'll need to look at trimming that back if I keep with the 1GB usb stick though as I want to venture further into tuning the kernel for the hypervisor role I've ordered a 8GB stick so I've got enough space on the stick to compile some custom kernels for testing, will look at optimising the image later though with 8GB the need is much less pressing.
I booted the HP server from the USB key and proceeded to configure for KVM and installed consolekit package in order to get and use pam_ck_connector.so as recommended in wiki. Installed libvirt daemon to help with remote management. Then set up the local hard disk for LVM and created an ext4 partition there which I mounted in /home/vm.
Using libvirt with virt-manager GUI locally made it painless to remotely test the instance is running, using same tool I then defined the vm storage area as /home/vm.
Next step was to download an appliance (google appengine both for testing and some hacking I'm doing on that for a project). I copied that from desktop to the remote server and followed this guide to extract and convert the vmware image to a raw qemu image - all I did was get as far as the convert step, then I just used virt-manager to import the image and followed the prompts after which the image booted fine and I selected DHCP for network configuration.
Thereafter I was able to access my appliance via HTTP and SSH, everything is running fine :-)
I still need to tidy up the ability to use virtual networks, for now I'm being lazy and just allowing vms to get on the local lan via DHCP assignment from the router (dd-wrt) which is fine for what I'm doing in the home-lab. I can now say goodbye to ESXi and ensure I continue to champion using open source software where ever possible - gotta eat your own dog food! Excluding time I put in to read up and check all sorts of stuff I'd say you can get this done in about 90 minutes or less.
Next step will be to play around with vm migrations back and forth from remote server to desktop though I'll leave that for another day.
Last edited by esdaniel (2011-06-10 13:12:43)

T 440 P -usb stick - device cannot be started - code 10

Hi,
When putting normal usb stick in, it start to install usb driver, but it is not found.
Device manager says device cannot be started - code 10. Tried with 5 different usb stick, they work in other computers, so it must software problem ? It makes same in all computer usb ports. Pls help ! Computer is brand new.

Hi,
Yes, i have tried it but no help. I contacted the support, but they do not have Lenovo support in Finland for software problems. It hard to claim but where ? ... I think that i will return this machine.

1,1 running Lion with XP Boot (re-install and what should i use for recovery disk or usb stick)?

i am trying to give my 1,1 mac pro a little love and would like to keep this machine running lion. i also have a boot camp installation of XP on it.
1. can anyone give me instructions on how/whether i can basically do a fresh install of Lion on this machine and minimize the system so it is not cluttered up with all my previous software etc, etc while still maintaining the original XP boot camp partition which i really need to have?
2. can anyone clarify for me what i should have on hand /if/ i need to boot into recovery mode or some other safe boot mode? i recently ran into an issue where i may have had to use the old Disk Utility format function and there was a reference to booting using the DVD install disks. however i am really confused as to what i should have on hand. ALSO the last time i had to do something on this machine i was told to boot into the Recovery Partition and it appears for some reason (perhaps because i had a "non-standard" windows 7 boot camp installation on the drive at the time??) that there was no recovery partition created when i upgraded to Lion.
- /anyway/ i am finding that i have the two ORIGINAL install disks for the mac pro on hand, a Max OS X Leopard and a mac OS X Snow Leopard DVD on hand but i am thinking that i should be creating some kind of USB stick similar to the one i created with yosemite? actually, i am not even sure what this USB stick for yosemite is for but i guess i can use it to boot into safe mode or something?
THANKS for any help as i'd like to get this business under control a little better in case i have an issue.
i'd also like to install Lion so that there is a Recovery Partition if possible and i think this may be possible if i don't have the windows 7 partition in the machine when i do a fresh install. any help would be great. thanks.

You have to go out of your way to build the Installer Disk yourself. But this tool makes it easy, and this site contains instructions:
http://diskmakerx.com
the bootable installer is basically to re-install the OS if i have to
Yes.
the recovery partition is somehow for fixing a problem
Recovery can go and get you the software and re-download it and start the Install, and allows the use of Disk Utility and can reset passwords.
or is there some overlap?
Yes. Both give you access to the Utilities that used to be on the Installer DVD. Disk Utility to Repair or initialize and a few other tools that can allow you to set up to install on an otherwise-bare disk or change your password.
is "Safe Mode" something completely different
Safe Mode is a way to start the fully-Installed Operating System in a special way. It first does one pass of Disk Utility (Repair Disk) against the Boot Drive. [Normally this would require booting from a different drive to make repairs.] Then it loads a minimal set of Apple-only kernel extensions, and uses a one-size-fits-all screen resolution. Then it demands your Username and password to proceed.
From there you can fix settings, use the Finder to add or delete things, and check operation with minimal extensions versus all your daily-use extensions. Very helpful for debugging extension conflicts and graphics settings problems, and fixing damaged settings. The next Restart builds a new extensions cache.

Please explain me, how to remove an usb stick or memory chip? With experiences only in pc:s, I do not find on my first apple e.g. MacBook Air a solution. Until now I have succeeded to destroy one chip full of photos and - there's no life more in the port.

Please explain me, how to remove an usb stick or memory chip? With experiences only in pc:s, I do not find on my first apple e.g. MacBook Air a solution. Until now I have succeeded to destroy one chip full of photos and - there's no life more in the port...
Someone told me just to remove the chip in clicking it to the trash can and voilá - it would be done. But as I did so, on the screen appeared a text which let me know, that that way had been the wrong one...
I should have clicked Finder plus something.... which I do not now remember but which was then not found behind the Finder.
So please would someone be so kind and tell me, where I can find explanations for the most simple functions. The manual I got does not include a clue.
Thank you!

First make sure that no application is using or has open any files on the disk. Then:
Click and drag the disk icon on the desktop to the trash. Wait for the system to recognize the action, and the icon should disappear from the desktop. It is then safe to remove the device.
Alternatively, you can secondary click on the disk icon, and then primary click "Eject (name of disk)". Wait for the icon to disappear off the desktop, and then it is safe to remove the drive.
Here is a detailed help document on the subject.
http://docs.info.apple.com/article.html?path=Mac/10.7/en/mchlp1056.html

How do I use a USB stick (SafeStick) with my MacBook Pro

I have an encrypted USB stick for use with Windows and SNow Leopard. When I upgraded to Lion is stopped working on my Mac. Any ideas please?
THansk
Ian

Did you ever find out what to do, this has happened to me too. Apple support could not help as the machine was not recognising the safestick.
Also I am concerned that even if I fix it then the person I want to give it to will also have the same problem.
regards Ro

How to use iPad (4th gen) to edit with iMovie - but using an external source such as a USB stick or external USB hard drive

Want to use my iPad (4th gen) to edit a movie using iMovie - easy enough if the movie file is on the iPad - but what if it's too large - can I keep the source file on a USB stick or external USB hard drive and edit from there? How can you do this?

You can't export any type of file using the camera connection kit, so a USB flash drive or SD card won't work.
There are some wireless external hard drives that can be used with the iPad.
The Kingston Wi-Drive, which costs $50 for the 16 Gigabyte, and then $30 more for every 16 gigs more. It works by you turning it on and then accessing the files on it from an app that you download on your iDevice. You can access music, movies, and other stuff. No connections or anything, it works like a WiFi connection, you connect to it from the setting on the iPad under wireless networks.
Then there is the Seagate GoFlex, which some would recommend over the Wi-Drive. But this one costs $199 and had 500 Gigabytes of storage. It works the sameway as the Kingston: no wires, runs over its wireless connection. You can actually fit up to 300 HD movies on it.
Another option:
Expand your iPad's storage capacity with HyperDrive
http://www.macworld.com/article/1153935/hyperdrive.html
On the road with a camera, an iPad, and a Hyperdrive
http://www.macworld.com/article/1160231/ipadhyperdrive.html
 Cheers, Tom

TS1587 Hello, I downloaded an ntfs systemfile from tuxera and used it to convert a usb stick, my imac froze a while after so I turned it off the on and now I have blue vertical lines on boot up and the a white screen with lots of tine blue symbols, need h

Hello, I downloaded an ntfs systemfile from tuxera and used it to convert a usb stick so I could put more than the fat32 4gb on, my Imac froze a while after so I turned it off the on and now I have blue vertical lines on boot up and the a white screen with lots of tine blue symbols after, mouse pointer moves but thats about it.
Have used R and cmd to get a menu up but once I choose one of the four options my mouse is rendered useless and I cant get any further, have downloaded, to another usb stick recovery disk assisstant and am trying to use that in conjunction with the lion option on the previously mentioned screen, computer was responding really slowly and has now frozen on the terms of software license agreement (maybe the last hurdle!) can anyone pleeeeeease help!!!!!??????

It's likely that the boot drive is failing, or that there's some other hardware fault. Run the Apple Hardware Test.
Intel-based Macs: Using Apple Hardware Test
Even if the test is negative, you should make a "Genius" appointment at an Apple Store to have the machine tested more thoroughly.

Think M72e start windows 7 with usb stick inserted

I know in the scheme of things my M72e annoyance is pretty minor,but I am more curious than exasperated.
If I try to start the machine with a usb stick in any of the ports it won't boot into windows 7and I get a "No bootable partition in table" message and the machine just hangs there.
If I remove the usb stick and restart, it boots to windows 7 fine.
Obviously, i figured that the machine is trying to boot off the usb stick before the harddrive. So I went into the bios but there is no option to boot off the hardrive first.
I can press F12 and it gives me a one time option to boot off the hardrive but I don't want to have to do this everytime.
Anybody know why Lenovo in its wisdom hobbled the boot choices in the bios?
Thanks,

F3Spirit wrote:
Thank you,
I try this.
Also check this one out
But i think you would be far better served by installing Windows in a virtual machine.

15 Bucks SDR with DVB-T USB stick (2MSample IQ ) :)

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