NO Signal on 5 or so channels

Hi, i have a no signal message on BT Sport 1 HD and BT Sport 2HD, MTV Live SD, Talking Pictures and Fashion OneSomeone suggested last month that once the old Eutlesat Satellite transponder had been upgraded i might get these channels back - but as of today i still dont have themany ideas?

Eutelsat 28A was switched off a few days ago. Everything was migrated to other satellites. Reboot the box at the mains.

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No signal on mixer on any channel?

Hi...
One minute my track was going fine the next minute there is no sound, no signal from any of the channels.
I have checked the audio output is correct. (itunes and other apps working)
I have loaded an earlier version of my project and this plays and the level are going.
I dont know what i did i think i must have hit my keyboard as i lent over to grab something...
Any ideas?

Hi thanks for the response.
nothing is muted. the levels actually go up and down even when muted. But there is no signal at all going to the mixer.
strange never had this before...

Connecting more than one sensor cable to screw terminal to collect more than one signal in single DAQ board channel?

I don't know if this topic is being posted in the correct location. I am new to LabVIEW and the hardware associated with it. I am using an NI 9237 DAQ board for a senior design project in engineering and I was informed that I can make multiple connections to a single screw terminal which in turn will connect to one channel of the DAQ board. To give the specifics, I have two pressure transducers and would like to connect them to the same screw terminal and channel on the DAQ board yet separate them when acquiring data in the VI. Does anyone know how to do this? I know is is essentially knowing what pins do what on the screw terminal but I can't find this anywhere. I am currently doing the job with two screw terminals and two of everything else (RJ50 adapters, etc.). I would appreciate any input. Also, please let me know if I am posting in the wrong board and if possible, which board I should be posting to.
Thank You,
bsteinma

bsteinma,
What you may have heard is that you can measure multiple signals on the same task, not on the same channel. By tying both of these signals to the same channel, both signals will compete to drive the line. The channel on the card will only interpret this garbled signal and you will get no useful data. If you are new to wiring up hardware, I recommend configuring a task within Measurement and Automation Explorer and then clicking on the tab along the bottom of the page titled, Connection Diagram. This will show you what electrical connections to make. Then, in LabVIEW you can read multiple signals (channels) and manipulate each signal how you would like.
As far as boards go, you will generally find an answer where ever you post, but the Multifunction DAQ board is a great place to post when you have questions regarding hardware (like your 9237).
Cole R
Applications Engineer
ColeR
Field Engineer

No signal on bbc hd,itvhd,channel 4 hd????

Help needed please Iv recently moved into a flat and the flat has a communial arial which we plugged in. Weve been in here for 3 months. The signal has been fine but in the last week or so the signal has dropped from bbc hd , itv hd and channel 4 hd. All other hd channels work fine. I have checked the connections into the box and tv and also turned off and back on. Does anyone know what has happened or if there is something i can do?

ashley1047 wrote:
.......Does anyone know what has happened or if there is something i can do?All that's happened is that some PSB HD regionals have moved satellite in the last week or so, and I think they're now on an Astra 2G ( new satellite ) UK spot beam which means that if you're outside UK the chances are these will no longer be received without a larger dish. If you're in UK, and have fully rebooted the Sky+HD box at the mains, and still no joy, I suggest you follow Mark's advice and speak to whoever is responsible for getting the building's communal system looked at.

WRT110 signal problems... change channel?

I have been having significant slowdown using my wireless router. Someone in a differfent post said he was told by comcast that his signal could be inconsistent because comcast uses the same channel, which causes interference. I too have comcast, so I want to try this. Unfortunately, the threads I've read only give directions up to accessing the Linksys administration tool and I cannot find any way to change channels once I get there.
When I get to the Wireless tab, I see manual and wi-fi protected options, and it is default filled to wi-fi protected. Option 1 [holding the wi-fi protected set-up button and hitting the button to the right] results in a failed attempt to contact the client device. Option 2 requires a PIN and I have no idea what that would be. Option 3 gives direction if my router asks for a client PIN number... no idea how to get to whatever point the router would ask for that info.
OTOH, if I click the manual setup radio button, I go to a page that only offers a few set-up options [Network Mode, Network Name (SSID), Radio Band, Wide Channel (only option is auto), Standard Channel (only option is auto), SSID Broadcast]. In other words, I can see no way to set to channels 1-6, 9, 11 as others have recommended.
What the heck am I doing wrong?
TIA

>Someone in a different post said he was told by comcast that his signal could be >inconsistent because comcast uses the same channel, which causes >interference.
First that is a bunch of crap. You WAN input is not on any 'channel'. Next don't ever hit the SES button (Secure Easy Setup) on the front of the router because you don't have the receiving hardware to take advantage of it. The wireless tab always defaults to WiFi Protected Setup but you always want Manual.
Never use the Linksys Admin Tool LELA. Always connect to your router via your wired computer to 192.168.1.1. Leave user name blank and input your password that you set (might be admin).
Under basic wireless settings:
Network Mode - BG Mixed (my setting)
SSID - your network name
Radio band - Standard 20Mhz
Wide channel - Auto
Standard channel - 1 (higher frequencies are not as reliable)
SSID - Enabled
Basic Setup Tab change MTU value to Manual 1492 if you have PPPoe, otherwise lower it to 1400.
Advanced wireless settings change Beacon Interval to 75, RTS and Fragmentation threshold to 2404.
Save settings and give it a try. Once your wireless is stable, go back and add security.
Message Edited by sabretooth on 12-01-2009 11:59 PM
Message Edited by sabretooth on 12-02-2009 12:01 AM

Acquiring 4 channels at 10kHz using PCI-6070E card and Labview 7.0. I need to average a signal that is time-locked to an analog trigger. Is their an available vi to accomplish this?

I am acquiring 4 channels of data, sampling at 10 kHz. I am using a PCI-6070E board. I need to average a biological signal time-locked to an analog trigger that occurs at about 3/second. Is there a vi that will accomplish this?

If you are looking for a way to do a "retriggerable" acquisition, there is a shipping example called Acquire N - Multi-Analog Hardware Trig.vi that accomplishes this. However, please note that this example achieves this effect by reconfiguring the task for each trigger in software. This means there is a delay between reconfigurations. If a trigger signal comes during this reconfiguration, it will be missed. This delay is system dependent on how fast your computer can execute the reconfiguration code. The 6070E does not support hardware retriggerable acquisitions.
However, if you are wanting to acquire continuously and then do some post-acquisition analysis, I couldn't find any examples that accomplish this, but it wouldn't be too hard to build one yourself. Y
ou would probably want to include your trigger signal as an additional input channel. Then once you've acquired all of your data, in software you can scan through the data acquired for the 5th channel and then segment your data according to that signal. I hope this information helps.

Prevent OS X to upmix my stereo signal when using 6 channel HDMI

I just bought a new MacBook Pro 13" (2015 version) and I'm used to watch series using my Windows notebook or Desktop machine plugged to my Home Theatre system with a HDMI cable. Because every series is produced in 5.1 and then encoded to a Dolby stereo signal everyone can have a surround sound experience when putting it through a Dolby Pro Logic decoder although the sound is delivered as 2 channel stereo. You guys may have noticed it when watching TV and then put the sound signal through a Dolby receiver. (http://en.wikipedia.org/wiki/Dolby_Pro_Logic#Dolby_Pro_Logic_II)
When I was watching my movies using my PCs it would send the stereo signal through my HDMI cable (set to 5.1) and at the receiver it gets converted to surround sound. But now when I watch using my Mac my stereo signal gets upmixed to all channels (which ruins the dolby signal) and my home theatre cannot decode it anymore.
It works when I put my HDMI settings to a 2 channel configuration in OS X's Audio MIDI setup but I want to keep it in 6 channel mode in case I have a 5.1 audio file or watch a 5.1 movie.

Not all MacBooks support audio over mini-Displayport. Use this user tip to find your model:
https://discussions.apple.com/docs/DOC-6413
And this one to determine if there might be a problem:
http://support.apple.com/kb/HT4241
If there is, I offer several solutions on this tip:
https://discussions.apple.com/docs/DOC-2821

Problems with signal strength with channels on Mux...

I've had a YouView box (Humax first gen model) for almost a week and i'm having pixelation/signal strength problems with all channels on Mux. Com5, Pick, Dave, Movie Mix and Really etc. My Vision+ box and TV are showing these channels without any problems. Any ideas?

I have a similar problem.
(But not on Crystal Palace Tx).
Switch to a poor channel. (Dave for example. This is one I have problems with).
Go to Settings, TV Settings, Freeview Signal Strength.
Now press the Info button to get extra information.
Note the UHF channel number, the channel is being received on.
Get the same channel information, on the other Freeview receiver you have.
In my case, the UHF channels are different.
I believe, the Youview box is pre-set to receive from a transmitter (and hence a UHF channel number), determined by a post-code and/or your address details.
Because my aerial is not pointing at the main transmitter for my post code, I get poor reception because the transmitter the aerial is pointing at, transmits Dave (MUX) on another UHF channel.
As confirmed by the other freeview receivers I have.
There doesn't seem to be a way to force the box to use any other UHF channel.
Any scan always comes up with the same one.
There is no manual setting.
I might be totally wrong, but I think this is another software bug.

No satellite signal on certain channels after changing boxes - getting nowhere with sky help

So I got a new sky box from sky and have been getting the No Satellite signal message on certain channels (i.e. Sky1 HD, Sky Atlantic and Sky Sports) since I changed the boxes. I have tried all the suggestions in the online help as well as through the call centre personnel who just repeat the same thing over and over. Can anyone please assist? To get things started: 1. Yes, the viewing card was paired.2. The input signals show OK for any channel that is possible to view. When you look at the input signal details for a non-working channel then Input 1 shows as NOT LOCKED and input 2 as OK.3. Communal dish and no problems in other flats.

It might be local interference. You'll have to switch off any wireless equipment in the room, and especially a wireless router, cordless phone base station and anything else that radiates signals. You should also unbundle ( if applicable ) your dish Input cables from anything else behind the box, in particular power leads. If you're using the white, pre-moulded cables from the likes of Homebase, B&Q etc, it might be an idea to replace them with good quality, double-screened cabling such as WF100 which you can buy online. Are you able to borrow someone else's HD box to test in your flat, or are you able to check out your own box on a non-communal setup?

FP-AI-110 Multiple Channels - Signal Degredation

We have a FP-AI-110 set up with a FP-PS-4 and communicating back over a FP-1000. Set-up to read Current. -21 to 21mA
I had a customer ask if connecting more than one signal input line to the AI-110 would cause signal loss on the multiple channels, getting worse with the more channels that are connected.
Is this a concern with this module?
Ryan Vallieu
Automation System Architect
Solved!
Go to Solution.

The above is incorrect, I was getting questions through a second non-technical party trying to translate....
They really wanted to know the input resistance on the channels that causes the voltage drop for the current sensing, and what the minimum voltage would be. I see from the literature that it is 100 Ohms resistance on the inputs.
But then I see later in the operations manual that it lists 60-150 Ohms.....which is correct?
Current Inputs
Input impedance................................60–150 Ohm
Ryan Vallieu
Automation System Architect

Analog sound signal no digital sound

I have a A660-BT2G25 laptop which includes DOLBY® Advanced Audio. I connected it via an HDMI cable to the back of my Denon receiver and set the receiver to receive either digital sound input or analog sound input from the laptop that I am currently using as part of my entertainment center. All items in my device manager are operating properly (the system shows NVIDIA High Definition Audio under sound four identical times with all divers identical in each, all with normal operation & no conflicts-not sure if this is normal). The computer recognizes the Receiver as an Denon AVAMP-3 in the sound setup in Control Panel. Further, I have set it as the default and run test after test. The properties there indicate the device is operating normally and shows DTS, Dolby Digital and Dolby Digital Plus. w/HDCP supported, up to 192 sampling rate, 16 & 24 bit. Here is the rub. My receiver is only receiving analog signals under PCM (analog signal) and not DTS (digital) so while the sound is good and clear per my receiver upgrading the signal, there is no digital splitting of the signal to the 5.1 channels. If I force the receiver to take only DTS signals over the HDMI cable there is no sound at all. There is nothing wrong with the receiver. Anybody have any suggestions???

Hi, I just purchased a Mac Pro and am running 10.5.2. I am seeing the exact same behaviour when using the optical digital out from the Mac Pro to a Teac Receiver. It takes about 5 seconds for the audio to start playing from a "silence". If there is continuous playback there are no problems, but if there is ever a significant pause in the audio the receiver shows "unlock" on the display and stops playing out audio.
It certainly does seem like the digital stream is getting interrupted which then causes an issue with the receiver.
I haven't been able to find a solution yet.

Unwanted channels keep reappearing in the TV guide

At first I never had a problem but over the last week or two, presumably following a software update, my edited list of channels keeps defaulting to show all channels including the adult ones that and all those useless shopping channels we don't want appearing in the TV guide.
I keep removing them so it looks the way we want and then a day or two later they are all back there again!! When will this be fixed? It could be a coincidence but it seemed to start around the time that BT launched the sports channels. I have a BT YouView box.

Hi Guys,
This does not appear to only affect BT customers. YouView are aware of this issue and are working on a fix. In the meantime, retuning your box should help, by pressing the YouView button on your remote control, going to Settings, then TV Signal & Quality, then Re-tune Channels.
Sorry for any inconvenience or embarrassment this has caused.
Cheers
Sean
BTCare Community Manager
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Transmit/Receive Manchester signals using digital output of PCI 6224

How can a manchester signal be transmitted and received using the DIO of the pci 6224 board?
I want to create a NRZ manchester signal on a digital ouput channel and then have the ability to receive and interpret the same type of signal on a digital input channel.
Any assistance would be greatly appreciated.
Solved!
Go to Solution.

Hi VJohnson,
You might find this discussion forum post useful.
Looks like LabVIEW does not have Manchester coding/decoding built in, but it should be do able in your VI by replacing every element with the corresponding two elements, and using double the baud rate as your clock rate.
Thanks
Scott M.
Applications Engineer
National Instruments

Trouble with AirTunes - conflicting channel noise?

Hi there
I have just bought an Airport Express with AirTunes. The device works great - but thus far I have only been able to successfully play music on the network it creates - I haven't been able to use WDS or get it to join a network and still stream music without there being constant pauses in playback through AirTunes. I thought this might be down to there being three WLANs in the close area which are operating on the higher end of the channel spectrum. I was able to change the channel on one of these WLANs so it now operates on channel 4, but there are two WLANs which have the same signal strength still operating on channel 11,12 or 13. The thing is when monitoring in Kismac, they seem to hop between channels quite quickly. I thought this might be because they are trying to avoid noise: but they seem to hop at the same time. When one jumps ship to channel 11 from channel 10, the other seems to.
What I'm asking is, does anyone have any experience of pauses/delays/gaps in AirTunes playback and could this be the problem?
I'm also trying to get the Express to act as a repeater, but that's another story. The problem there is that I don't have access to the settings of the main router (my neighbour kindly shares it) so I can't update firmware/change WDS options on it.
Thanks!

Don't wire your the task out on the Create Task to the input of another task.
Not sure what you mean. Those are CREATE CHANNEL functions I'm calling, and the point of them is to ADD a CHANNEL to an existing (or new) task.
I want ONE task that combines the voltage channels and the strain-gauge channels, and I READ the task to get all the channels together.
If it's not legal to add a channel to an existing task, then I should get an error, and the input TASK INPUT would be worthless.
The weird thing is, it seems to work on the real hardware (with 4 voltage + 1 strain). At least my client hasn't complained and it's an important channel.
But it looks like I can't trust the simulation.
Steve Bird
Culverson Software - Elegant software that is a pleasure to use.
Culverson.com
Blog for (mostly LabVIEW) programmers: Tips And Tricks

Noob.. GB '08 on MBP Won't Record Right Channel Audio

Hi, I'm a noob to Macs so please forgive me if I've missed something obvious.
I wanted to do some light, goofing around with GB '08 V 4.1.2 with my Roland V-Drums. The Roland V-Drum module output uses two, 1/4" jacks (a "Left" and "Right" channel) which I have coming together in a "Y"-shaped stereo adapter, plugged into my MBP (Latest Leopard - bought new last week - 4 gigs of RAM, updated all OS & GB files 3 days ago) and for the life of me, I cannot get anything to play in the right-channel audio *but only when recording in GB* - otherwise both audio channels work fine.
My Roland V-Drum unit can do mono by simply using one of the two designated Output channels; then I use a mono plug instead of a stereo. Even then I only get my drums recorded on the left side!
I've gone into every obvious configuration setting I can find - both in System Preferences>Sounds and those within GB '08, but for the life of me, cannot find where I've set something wrong. I've swapped cables and adapters. I've also tried speaking into a microphone plugged in and the same thing happens when recording in Garageband - only the left channel gets any sound. If you pan the result to the right, all the sound just goes away.
Anyone have any suggestions to try? Is this a bug? TIA...

Snud wrote:
Thanks to all. - But Matt, I know you just solved the "built-in stuff not working problem"! You certainly win whatever Grand Prize goes along with diagnosing "Drummer Dysfunctional Disorder". Your suggestion most certainly works with the built-in stuff - Thank you!
Your welcome and... I'm pretty sure the award for curing Drummer Dysfunctional Disorder is a combination Nobel Prize + sneakers with the Nobel logo embroidered onto it, which is really great since I could use a new pair. I'm only grateful that this didn't occur last year because I would feel terribly guilty if my own award interfered with Al Gore's since, as I have read, he is also thrilled by the complementary sneakers.
Now see if Apple was really smart, they'd have the *opening screen* of GB ask: "Are you a drummer?" and if you answer "Yes", well that would take us to a much simpler version! Hmm... Perhaps I could design it for them - or be the "Test Monkey". But I digress...
I'm guessing your humility is not exactly warranted... but perhaps an even easier version could be developed and named something like, I don't know, iTunes?
I'm happy to report that, thanks to you Matt, my stream of obscenities is not only causing the LED to register but... I can *record them in stereo* too! I'll try your final suggestion after I sleep on it. Today, the built-in mic... tomorrow, the world!
Words to the wise! (particularly when recorded in stereo and including obscenities)
(I still hope it's ok to leave this as "unanswered" until I try recording my drums instead of the built-in mic, tomorrow)
I suppose there's a sort of philosophical appeal to leaving all questions unanswered: for what is knowledge, and what can we truly know? But now I digress...
So back to your Garagebanding.
The thing is, if you can get your internal mic to work just fine, stereo and everything, that lets you know that at least your system is working, and that there isn't a bug that's crawled into it and is messing things up. Knowing that, you can narrow down your search for the culprit. If the internal mic works just fine, and the software works just fine, what is it about your original setup that's broken?
I would go back to the notion that the computer never received both channels of your output (its input) to begin with, and that perhaps the physical plug is either mono or, by virtue of its shape, not able to properly seat itself in order to make contact on both channels. That's just a guess, but at least the search for the culprit has been narrowed down to likely suspects.
(One possibly helpful distinction: a mono signal can record to both channels through a stereo minijack, but perhaps if the minjack itself is mono - or not connecting to both channels of the input - the signal (stereo or otherwise) might be restricted to one side?)

NO Signal on 5 or so channels

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