Signal Level Meter

Signal Level Meter
CATV Signal Level Meter GAO2002 is specially designed for CATV system maintenance. Signal Level Meter GAO2002 features small size (160mm x 130mm x 65mm) , light weight (368g including battery), long operating time (more than 6 hours), and well-built from appearance to architecture. Signal Level Meter GAO2002 combines the most practical functions and makes them easy to use. What is even better about this piece of equipment is that its added aseismatic design makes it more durable than you can expect. Tests show that it can continue to work well after being dropped from 5 meters high. It supports Level, V/A, Tilt and Trunk Level testing as well as testing two channels at the same time.
CATV Signal Level Meter GAO2002 Specifications:
Frequency
Frequency range: 46MHz ~ 860MHz
Frequency step: 50kHz, 1MHz, 10MHz and 100MHz
Level Measurement
Range: 20dBuV ~ 50dBuV
Accuracy: ±20dB (20ºC ± 5ºC)
Resolution: 0.5dB
Carrier to Noise (C/N)
Option Range: 20dBuV ~ 50dBuV
Input signal range: ≥ 85dB
Measure accuracy: ± 2.5dB (20ºC ± 5ºC) shut off the carrier
Resolution: 0.5dB
Voltage
Input range: 1~100V (AC/DC)
Measured accuracy: ±2V
Resolution: 1V
Miscellaneous
Size: 160mm x 130mm x 65mm
Weight: 368g (including battery)
Working: -10ºC ~ 40ºC
Audio: Built-in speaker (Auto on in single frequency mode)
Battery
Built-in battery: 3.6V/2.1AH Ni-MH
Working time: More than 6 hours (Shut off the audio and LCD backlight)
Charging time: 10 ~ 12 hours (power off)
Gao Tek Inc.

Do you have drivers for LabVIEW?
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"It’s the questions that drive us.”
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Similar Messages

Level Meter Plug In -VS- Output 1/2 meter...Inconsistencies...

I'm mixing an 18 minute long recording for vinyl release. The vinyl pressing company has a minimum dbl on recordings they master and press. If the level is under, they charge hundreds of dollars more to re master and increase the volume via massive compression.
So to check and double check the overall volume in Logic Express 8, all I can find for a meter is the "Level Meter" in the visualization plug in toolbox. So I have the Level Meter "plugged" into the Output 1/2 track...The problem with the Level Meter is that it is showing levels around 8 dbl lower than the Output 1/2 meter. This could potentially be an expensive discrepancy not to mention may have a negative effect on the end product's sound quality.

Eriksimon wrote:
If you used a meter as an insert, it comes, like other effects plugins, before the fader. Sorry, I didn't read attentively the first time.
Still, the effect is the same as pre-fader metering. The signal passes the meter before it goes to the fader. If you turn pre-fader metering on you'll see that your faders don't affect the channel strip level meters anymore and behave like inserted level meters as well.
So if you lower the fader on channel 1&2 so you no longer see clipping, how does it work?
1. Does it lower the output simply telling you that you are not clipping going out from fader 1&2?
or
2. Does it lower the input from all contributing channels so that the source coming to fader 1&2 no longer clips?

Input level meter in Audition CS5.5

I can't find an input level meter in audition CS5.5. I have to go my windows 7 control panel find me device and set the levels. So, to set levels I have to have two windows open, one control panel audio adjustment window and one soundbooth window where I actually record and watch meter, then I erase and record for real.
I must be overlooking something -- every other audio program I have ever used lets you set input levels while watching the meter. I've been through the help, and Googled it and I can't figure it out. In Audition, how do I set input levels from within Audition CS5.5 (not in windows 7 control panel)?
Thanks!

Short answer, no!
Audition merely records EXACTLY what the input device is sending to it. In normal useage the "level" of the signal to be recorded would be set externally, e.g. by use of an audio mixer or a "gain" control on the input device. I assume you are recording by using a line or mic plugged straight to your computer? In which case, the Windows Audio Control Panel is the only way to set levels.
Jeff

Confused with Logic level meter

Hi guys, could anyone help me with some piece of advice?I have a problem with track levels, my mixes are usually quiet, but my aim is to get them to the yet fatiguing but still standard very loud level. Also when mixing I can hear that the arrangement is groovy and punchy, but when I get it through Ozone or Logic mastering plug-ins it turns into a komplete mess without any definition, the waveform of the track is brushed heavily . One person said to get a loud nice master I need to watch the Logic Output fader meter for headroom about 6 or 3 dbs before zero and RMS about -9 db, the thing is I'm konfused now with the Level meter as RMS showing displays red klips , but the signal is actually lower, and I can see it, for ex. when klipping the signal is about - 15 dbs RMS, could anyone explain me the real way to get loud tracks, and what approximate settings should I stick to, as it starts getting on my nerves already cause I start to think I just can't do music..

First, try to separate the concepts of mixing and mastering. They're two entirely different processes. I'd suggest you first concentrated on getting your mix 'right' for you, and don't worry about the relative loudness until you've completed this first mixing stage. I wrote a brief blog post about this here which might help a little.
In general terms, you don't need to worry about occasional high levels on your individual tracks - only on mix bus on your stereo output, where a good peak level might be around -8 dbFS. That's the only place where you can't 'go into the red.'
Once you have your mix as good as you can get it, *regardless of volume,* then open that bounced file in a new Logic session. That's where you can experiment with Ozone, Adaptive Limiter, Multiband compression and other tools you can try.
You might want to do some further reading about mastering. Here are a few articles/forums which may help get you going:
http://www.soundonsound.com/sos/aug04/articles/computermastering.htm
http://community.sonikmatter.com/forums/index.php?/topic/4200-mastering-in-logic /
http://www.musicbizacademy.com/articles/mastering.htm
and there are dozens of posts in this forum - just search for "mastering"

Signal Level Varies

I don't know if this is related or not but ever since we had several brief power outages the signal level from my Airport Extreme Base Station throughout the house is very low. The base has an antenna connected and is in the room with my main G5 computer. There is also a G5 imac and a G4 ibook in other parts of the house. All 3 receive the signal via Airport. What I notice is that when first connecting (when the computer starts up), the signal strength is very strong and then it slowly backs down until it's only at level one or two on the meter. This even happens in my office which is only about three feet from the base station. I have tried moving the antenna and base station around but it doesn't seem to make a difference. Rebooting the computer often helps, but not permanently. Any suggestions?
Mac OS X (10.4.6)

I don't have an answer but I'd like one - I have exactly the same problem. Except we didn't have any power failures... the signal's just consistently getting worse, and I haven't changed any settings. For a long time it worked fine... anyone?

Peak Level Meter in

I'm using a SB Li've! Platinum 5. w/ Li've Dri've in my PC and I just upgraded to XP. When I installed the XP drivers for my card, I lost the peak level meter in my sound control window that I had back when I was in 98SE. I know there is 3rd party software that I can use to get a peak level meter, but are there ANY XP drivers for my card that have a built in peak level meter?
I ask, because an application I'm using (Sub Station Alpha) requires that I have a "built in" peak level meter in my drivers in order to use the audio triggering function.
Any help is greatly appreciated.
[EDIT]
If it helps at all, I am refferering to the meter you see on the left side next to the main audio slider. If you are runnin an SB card in XP and you have a peak level meter, please let me know what drivers you are using, thanks.
http://img368.imageshack.us/my.php?image=peaklevelmeter8yi.gif
Message Edited by Ruroni6 on 05-23-2006 09:4 AM

1) Bounce a file with the master at 0 DBfs, and bounce it with the master at -12 DBfs, and see if there is a difference.
2) The metering plugin is situated before the fader, that's why the metering isn't affected by fader movements. The same would go for any plugin inserted after the Meter: it will not influence the meter, even if it has a volume control that is fully closed (-∞). Signal flow is the keyword here.
regards, Erik.

Ipad vga signal levels

3 out of 5 attempts to present Keynote (and other video enabled apps) presentations have failed. After some investigation I discovered that the failed talks (ipad could not drive video projector - iapd couldn't find project, and projector couldn't find ipad) were result of long cable lengths between projector and VGA connector that I plugged into dock-to-VGA adapter. These were 50' long cables in conference centers. I rustled up some more standard length cables after these very embarrassing failed attempts to give public presentations, and with shorter cables everything worked properly. I should also mentioned that numerous MacBook, MacBookPro and PC-types laptops all had no problem whatsoever driving VGA through a 50' cable.
Anyone else experience this problem? It makes it impossible to trust the iPad as a conference presentation device if iPad video signal levels are too low. Perhaps I have a defective iPad, or is this a systematic problem?
If I have to buy a VGA signal booster to carry along with an iPad, its absurd since these devices are nearly the size of the iPad itself!

I am not sure of what the official limit is, but a google search brought up 50' as the "practical" limit. Another site said 9 meters. I have seen some long vga cables in various conference rooms.
You may have an iPad with a reduced output. You could either try another ipad, if you know of one available, or take your ipad to the Apple store and see if an expert can test the output strength.

WRT54G3G-ST: Signal Strength "meter" broken?

I am running a WRT54G3G-ST using the 2.00.9 firmware on Sprint with a Novatel Merlin S720.
I think that the signal strength meter does not actually work properly:
a. I can be connected just fine and have it display "No Signal"
b. Other than "No Signal" the only reading has been "Excellent" and I live in a fringe area with -90dB readings being very common for me which is FAR from "Excellent".
Does this meter work for anyone? If it does, which firmware? What gradations does it display? Which cards?
Linksys, it would be *REALLY* useful it the Status page would give an actual signal strength reading, SNR, which network (1xRTT vs EVDO Rev 0 vs EVDO Rev A). The card can deliver this information in the Sprint Connection Manager so it should not be terribly difficult for the router to display it. If you can't display the native data (seriously, this is the most useful data) then a graded bar graph would be better. Worst option is an unscaled word description - if it even works.

Well, good to hear that this bug is not specific to this firmware. Sounds like Linksys is getting signal information either incorrectly or at least inefficiently.
I updated my router firmware immediately (for card support) so I did not get a chance to see the original version.
Even the terrible D-Link DIR-450 give a 10 segment bar to indicate relative signal strength. They still should have displayed signal numebrs, SNR, network, etc., but at least you can kind of tell how you're doing from refresh to refresh. Saying "Excellent" when you know that you're in poor reception and/or reporting "No Signal" when you're online is not very helpful.
Linksys, is there a formal bug process or do we just leave messages here?

Sound Level Meter vi

It would be great if I could manage to have a Sound Level Meter vi. I do not have SVT.
Right now a .vi sharing would be best, but in my mind it is to start to make my own, this kind of tasks make you learn. The problem is time.
Any sharings? Suggestions? I found this in an old post, but, I get this error:
"Poly VI 'AI Acquire Waveform.vi': subVI is missing.
Attachments:
SPL.llb ‏88 KB

AI Acquire Waveform is part of the old traditional DAQ API. You can either replace the traditional DAQ VIs with DAQmx VIs or install traditional DAQ (provided you are on a supported, 32-bit OS). I would recommend the former. The sound level algorithms should still be good. Let us know if you run into issues.
This account is no longer active. Contact ShadesOfGray for current posts and information.

Diagram or vi for Sound Pressure Level Meter (SPL)

Need help for implementing a Sound Pressure Level Meter (SPL) with LabVIEW 7.1 or 6.3....I must use a microfone and a laptop for my project.....Need diagram or ready vi ....!!!
How can I make an A,B,C Weighting Filter vi for my Sound Pressure Level Meter project....???
If there is one already made or you can give me any help please send it to me.......[email protected]
Thanks.....

Search the archives. A similar question about the weighting filters was posted within the past month or two, if I recall correctly. I am not aware of any ready-built VIs, but the filter specs are published (Google A-weighting).
Also be careful with the frequency response of inexpensive microphones. They can skew the results substantially if you do not have some way to measure and compenste for the response.
Lynn

Setup help - low signal level in Logic

I'm getting low input signal levels when recording in Logic (-17db to about -10db, on average), and am hoping someone here can point out an obvious oversight on my part.
I'm recording mic'd guitars and vocals (one track at a time), with the mic(s)running into a Mackie 1402 mixer via XLR. Signals are strong and fine when I solo on the Mackie.
The signal runs out of the Mackie via the Alt 3-4 bus into the first and second 1/4" inputs on the back of a Motu 828 mkII, then into Logic.
Even if I drive the signal to near clipping on the Mackie, I get these low levels when recording in Logic. This is true whether I'm using a condenser mic with phantom power for vocals, or a dynamic mic on a guitar amp. I've also tried swithcing XLR mic cables.
I'm running Logic Pro 7.2.3 and OS X (10.4.9) on a G5 2.5 DP.
Is my signal path in need of some tweaking, or perhaps it's a setting I'm overlooking on the Motu 828?
Any help greatly appreciated to get this rookie back on track!
G5 2.5 DP Mac OS X (10.4.9)

Hi,
You wrote:
I'm recording mic'd guitars and vocals (one track at
a time), with the mic(s)running into a Mackie 1402
mixer via XLR. Signals are strong and fine when I
solo on the Mackie.
The solo on the Mackie is probably louder,check to see if you have it AFL(after fader listen or PFL(pre fader level or "level set").
The signal runs out of the Mackie via the Alt 3-4 bus
into the first and second 1/4" inputs on the back of
a Motu 828 mkII, then into Logic.
The first thing to check is to see what kind of cables you are running into the Motu mkii.
A. Unbalanced (ie "guitar-type" with two wires)
B.Balanced (ie "stereo-type" with three wires)
The second thing is to check what your inputs on your Motu are,there are two choices: +4dBu("pro") or -10dBV("consumer")
Here's the catch:
You MUST MATCH the correct cables for the correct levels.If the Mackie is outputting -10dBV but your Motu is thinking it is +4 you see less level no matter how loud you make the Mackie outputs.
The Mackie can output AUTOMATICALLY either -10dBV or +4dBu depending on what cable is hooked up to it.
Even if I drive the signal to near clipping on the
Mackie, I get these low levels when recording in
Logic. This is true whether I'm using a condenser mic
with phantom power for vocals, or a dynamic mic on a
guitar amp. I've also tried swithcing XLR mic cables.
This is not where the problem lies.It lieas between the output of the Mackie and the input to Logic.
I'm running Logic Pro 7.2.3 and OS X (10.4.9) on a G5
2.5 DP.
Is my signal path in need of some tweaking, or
perhaps it's a setting I'm overlooking on the Motu
828?
Yes,a setting somewhere in the Motu is not set correctly.Check above for how to do that.
Any help greatly appreciated to get this rookie back
on track!
G5 2.5 DP
Mac OS X (10.4.9)
Cheers

Audio Level Meter

Does anyone know where I can find an audio level meter that is either written in Swing or can be integrated with my Swing app?
I have not found anything in my web searches that really makes sense.

I've just started looking for the exact same thing. I'm glad
you posted first, I think you've explained the need better than I
would have been able to. I was thinking I may have to use an
embeded SWF, but the only thing I've found was in AS3.
http://livedocs.adobe.com/flex/3/html/help.html?content=Working_with_Sound_14.html
I too will be checking out the asFFT Xtra.

Is there a simple sound level meter for iTunes for windows ?

I'm trying to check the sound level of my music in iTunes and was wondering if there is a simple sound level meter plug-in for iTunes out there.

HKO,
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Question about Level Meter Plug in

I know how to change the channel meter between pre/post fader metering is there a way to do this with Logic's Level Meter plug in and with Inspector?

Plugins are always pre-fader, as the audio path hits the plugins and then goes into the fader.
What you'd have to do is route your audio through a fader (eg aux channel) to control the level, and then leave the fader on your output set to 0dB and meter in your plugins on that.

Signal level lights don't light up even when wifi is connected

I have a new MBP (the Core 2 Duo one). When I'm connected to a wifi access point, the Signal Level lights in the Internet Connect window never light up. Anyone else seen anything like this? I suppose it's not a huge deal, since I'm getting a connection OK. It's just that I'm curious how good my connection is. And it seems strange they'd make these nice little fake LEDs but then not use them.

iStumbler will give you better information
http://www.istumbler.net/

Signal Level Meter

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