Antenna characteristics of AP 1130AG

Hello,
for planning where to place a Cisco Access Point 1130AG, I need to know in which area around the signal is provided and in which strength.
Thanks.
Andreas

You can find the radiation pattern and specs for the radios in this doc
http://www.cisco.com/en/US/partner/prod/collateral/wireless/ps7183/ps469/product_data_sheet09186a008008883b.html

Similar Messages

Tree view with editable cells?

Hi,
I have written a GTK+-2 based graphical visualizer for the NEC2 antenna simulation and analysis tool http://www.qsl.net/5b4az/pages/nec2.html and I am now considering a companion graphical editor for the NEC2 input file. This file is normally produced with a text editor and specifies antenna geometry and then commands to calculate various data regarding antenna characteristics (gain, input impedance etc).
Luckily the original NEC2 was written in FORTRAN and the input was punched cards with a fixed format, so the current file format is line-based and with a fixed number of parameters per line: you can get an idea by looking into examples files in http://www.qsl.net/5b4az/pkg/nec2/examples/
What I need is an idea on how to code a graphical line editor with editable cells for each parameter and the ability to add or delete lines as needed. The data in the cells may be numerical or textual or both and there may be inter-relations between cells, e.g. one cell may have a value that is a fixed proportion of another cell's value etc.
Tips please? Thanks!

tranquility wrote:
Well, just about any language with bindings for gtk will work in a very similar manner. If I understand correctly, you might want to investigate the GTK treeview and GTK CellRenderer classes. Try to check the tutorials too.
Hope this helps.
Yes, thanks! Unfortunately though there is no easy way to have a spin button type editable cell, which would have been best for my needs. However, I found an example in a tutorial for the TreeView which could make a basis for a home brew second-best solution!

Why does the Antenna range differ a lot between 1728 and 2506

Hello,
I'm wondering about the documented approximate range of these two Cisco antennas, that differ a lot.
Can someone explain the big difference in range between these two antennas that have both the same antenna gain of 5.2 dBi and beam width 360Â°H and 38Â° V
AIR-ANT1728 Indoor antenna
Indoor range at 54 Mbps: 114ft, 35meters
AIR-ANT2506 Outdoor antenna
Range at 54 Mbps: 0.21miles, 340meters
Can we use the 2506 also for Indoor applications ?
Please advise and explain.
Thank You in advance.
Winfried

I would assume that the outdoor range is measured in free air ie with no obstacles where the indoor range is indoors and takes account of walls etc.
I may have seen something on the test methodology but it may have related to clients rather than antennas.
The 2506 is fine indoors as it says in the installation document
https://www.cisco.com/en/US/docs/wireless/antenna/installation/guide/ant2506.html
However the range will be the same as the 1728 as the RF characteristics are the very similar.

Proper use of 'patch' antenna

I have acquired a number of the flat patch antennas, and I am looking for some guidance in deploying them properly. I am using cisco 1200 AP's (b/g only), and in some area's I do not need 360' coverage, the patch antennas are better suited, but I cannot find any definitive guidance on their use. Should they be installed 2 per access point, or is their no benefit to using them in pairs? If I can use them in pairs, what is the optimum placement (there are 3 foot cables on the patch antennas). In one large room (appx 76' across, 66' deep), if I could install them in pairs, should they be slightly angled out and down to provide better coverage, or would that make no difference? I have seen the pages that show the coverage by antenna type, but I was looking for some detailed installation guidance for non engineers.
Thanks,
Gene

Hi Gene,
The use of two Antennas is generally referred to as Diversity mode. They are used
in a "pair" type config to mitigate "Multipath"
In a multipath environment, signal null points are located throughout the area. The distance an RF wave travels, how it bounces, and where the multipath null occurs are based on the wavelength of the frequency. As frequency changes, so does the length of the wave. Therefore, as frequency changes, so does the location of the multipath null. The length of the 2.4 GHz wave is approximately 4.92 inches (12.5 cm). The length of the 5 GHz wave is approximately 2.36 inches (6 cm).
In order to increase coverage, conduct a site survey to determine the RF coverage of the antennas. Place access points in the appropriate areas of the installation site. The purpose of diversity is to overcome multipath reflections. Diversity antennas that share the same physical housing are placed at an optimum distance apart. The maker of the particular antenna determines that distance based on the characteristics of the antenna. When you use a pair of antennas with matching characteristics to provide diversity for cell coverage in your facility, the guideline is to put those matched antennas at a distance apart from each other that is equal to a multiple of the wavelength of the frequency that is being transmitted. The 2.4 GHz wavelength is approximately 4.92 inches. Therefore, to support diversity on a 2.4 GHz radio with two separate antennas, the antennas should be spaced approximately 5 inches apart. The antenna pair could also be spaced at multiples of 5 inches, but the distance between should not exceed 4 multiples: reflected waves farther apart than that are likely to be so distorted and different in delay spread that the radio could not work with them.Because each antenna is selected by itself, both antennas must have the same radiation characteristics and be positioned to provide similar cell coverage. Two antennas connected to the same access point must not be used to cover two different cells.
From this good doc;
Multipath and Diversity
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a008019f646.shtml
If you provide the patch model #'s we can provide some mounting/installation instructions.
Reference Guide;
https://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/product_data_sheet09186a008008883b.html
Cheers!
Rob

Antenna diversity in LAP1242AG?

Is the antenna diversity functionality in the LAP1242AG described somewhere? I have checked that both antenna ports are used for both transmit and receive. Eg is there a memory that remembers what port a client was best heard/receieved on? What happens with mobile client in a multi path environment. Note: I plan to use dual polarised antennas.

Hi Niklas,
Here is some info on the use of Diversity Antennas;
The purpose of diversity is to overcome multipath reflections. Diversity antennas that share the same physical housing are placed at an optimum distance apart. The maker of the particular antenna determines that distance based on the characteristics of the antenna. When you use a pair of antennas with matching characteristics to provide diversity for cell coverage in your facility, the guideline is to put those matched antennas at a distance apart from each other that is equal to a multiple of the wavelength of the frequency that is being transmitted. The 2.4 GHz wavelength is approximately 4.92 inches. Therefore, to support diversity on a 2.4 GHz radio with two separate antennas, the antennas should be spaced approximately 5 inches apart. The antenna pair could also be spaced at multiples of 5 inches, but the distance between should not exceed 4 multiples: reflected waves farther apart than that are likely to be so distorted and different in delay spread that the radio could not work with them.Because each antenna is selected by itself, both antennas must have the same radiation characteristics and be positioned to provide similar cell coverage. Two antennas connected to the same access point must not be used to cover two different cells.
From this good doc;
Multipath and Diversity
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a008019f646.shtml
"You can relate this to a common occurrence in your car. As you pull up to a stop, you may notice static on the radio. But as you move forward a few inches or feet, the station starts to come in more clearly. By rolling forward, you move the antenna slightly, out of the point where the multiple signals converge.
A diversity antenna system can be compared to a switch that selects one antenna or another, never both at the same time. The radio in receive mode will continually switch between antennas listening for a valid radio packet. After the beginning sync of a valid packet is heard, the radio will evaluate the sync signal of the packet on one antenna, then switch to the other antenna and evaluate. Then the radio will select the best antenna and use only that antenna for the remaining portion of that packet.
On transmit, the radio will select the same antenna it used the last time it communicated to that given radio. If a packet fails, it will switch to the other antenna and retry the packet.
One caution with diversity, it is not designed for using two antennas covering two different coverage cells. The problem in using it this way is that, if antenna no. 1 is communicating to device no. 1 while device no. 2 (which is in the antenna no. 2 cell) tries to communicate, antenna no. 2 is not connected (due to the position of the switch), and the communication fails. Diversity antennas should cover the same area from only a slightly different location."
From this Antenna reference guide;
http://www.cisco.com/en/US/products/hw/wireless/ps469/products_data_sheet09186a008008883b.html
Here is the best description of why to use Diversity Antennas (in laymans terms) from a great NetPro ScottMac. When I read his reference to being at a stadium watching a sporting event, this all finally made sense.Have a look at his great explanation;
http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Wireless%20-%20Mobility&topic=WLAN%20Radio%20Standards&CommCmd=MB%3Fcmd%3Dpass_through%26location%3Doutline%40%5E1%40%40.1dd7905b/6#selected_message
Hope this helps!
Rob

What's the purpose for the two Wireless Antennas on a WAP?

I have a very simple question, that I'm a little confused about. Here it goes.
Most Access Points have two antennas. One is labeled as LEFT/PRIMARY and the other is RIGHT.
What is the purpose for the two antennas? When I have one antenna connected it works without any issues. Can I just use the LEFT/PRIMARY antenna for wireless connectivity? What are the purpose for the two?
And we are talking about a single band, 802.11b/g NOT 802.11a.
Thank you!

Hi Rashida,
The use of two Antennas on these AP's is used for "Diversity Mode. In many cases, 1 single Antenna will work nicely. Here is an explanation for the use of two Antennas :)
This describes the use of 2 **Identical Antennas in "Diversity" Mode;
The purpose of diversity is to overcome multipath reflections. Diversity antennas that share the same physical housing are placed at an optimum distance apart. The maker of the particular antenna determines that distance based on the characteristics of the antenna. When you use a pair of antennas with matching characteristics to provide diversity for cell coverage in your facility, the guideline is to put those matched antennas at a distance apart from each other that is equal to a multiple of the wavelength of the frequency that is being transmitted. The 2.4 GHz wavelength is approximately 4.92 inches. Therefore, to support diversity on a 2.4 GHz radio with two separate antennas, the antennas should be spaced approximately 5 inches apart. The antenna pair could also be spaced at multiples of 5 inches, but the distance between should not exceed 4 multiples: reflected waves farther apart than that are likely to be so distorted and different in delay spread that the radio could not work with them.Because each antenna is selected by itself, both antennas must have the same radiation characteristics and be positioned to provide similar cell coverage.
**** Two antennas connected to the same access point must not be used to cover two different cells.****
From this good doc;
Multipath and Diversity
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a008019f646.shtml
A diversity antenna system can be compared to a switch that selects one antenna or another, never both at the same time. The radio in receive mode will continually switch between antennas listening for a valid radio packet. After the beginning sync of a valid packet is heard, the radio will evaluate the sync signal of the packet on one antenna, then switch to the other antenna and evaluate. Then the radio will select the best antenna and use only that antenna for the remaining portion of that packet.
On transmit, the radio will select the same antenna it used the last time it communicated to that given radio. If a packet fails, it will switch to the other antenna and retry the packet.
One caution with diversity, it is not designed for using two antennas covering two different coverage cells. The problem in using it this way is that, if antenna no. 1 is communicating to device no. 1 while device no. 2 (which is in the antenna no. 2 cell) tries to communicate, antenna no. 2 is not connected (due to the position of the switch), and the communication fails. Diversity antennas should cover the same area from only a slightly different location."
Diversity Antenna Systems
Diversity antenna systems are used to overcome a phenomenon known as multipath distortion of multipath fading. It uses two **identical antennas, located a small distance apart, to provide coverage to the same physical area.
From this Antenna reference guide;
http://www.cisco.com/en/US/products/hw/wireless/ps469/products_data_sheet09186a008008883b.html
Hope this helps!
Rob

Aironet 1552E with 8-dBi Directional Antenna AIR-ANT2588P3M-N

Hello everyone,
Im building a local wireless network and im going to use the Aironet 1552E outdoor cisco access point, with 2 patch-directional Antenna 8dBi (AIR-ANT2588P3M-N) at 2,4 GHz.
The problem im facing is that i have to cover a specific area with really thick walls (about 80cm cement and stone made). That obviously decreases my signal a lot. (i currently use an indoor cisco aironet 1130 (2dBi) and its really hard for it to have more than 3-4 signal bars inside the room).
So i would like to know, how can i calculate the distance that the new access point with the patch antenna's going to cover?
Or where can i find any specifications about the stength of the signal and the coverage area in real enviroment?
Thanks in advance for your answers and comments,
Periklis

Dear Scott,
I understand what you say, so to make it easier for you to provide me with a “possible” answer, I will inform you about the situation. And I hope that you will be able to help me.
We have already placed a local wireless network using the 1130AG cisco Access points. That Cisco as you know has a 2dBi omnidirectional internal antenna. We placed them outside of the buildings, inside of electrological boxes to protect them from the environmental changes. The walls that the signal has to penetrate are about 80cm of cement and stone. (pretty thick walls…)
Still, their signal differs (for ipad’s and smartphones) to 2-1 and laptops 4-5. Pretty good for an indoor AP placed outside of the buildings!
In order to increase our signal to the maximum that we can, we decided to change the 1130AG’s with 1532 E or 1552 E AP’s. And combine them with the 2,4GHz external 8dBi directional PATCH antennas.
After thinking about a way to provide better signal of wireless to our customers, we decided that increasing the signals power from 2dBi to 8dBi as well as changing the antenna’s from omnidirectional to patch directional , we will be able to achieve better penetration of the signal inside the buildings.
What im questioning you is, IF that thought of ours has a logic and that IF is gonna work with the current situation.
Also, I would like to know since we will propably go for this method, in which high and distance from the 1st building it should be for better coverage?
Hope to hear from you soon, since I really need an expert’s help on this task.
Thank you

Diversity - Distance between Antennas

Considering both antennas are similar-type and gain the two imp criterias i read in achiveing Diversity is
1. Antennas should be placed close enough to each other so that the RF coverage area is nearly identical.
2. The receiving antennas are spaced sufficiently apart to achieve independence (no coupling) between the received signals.
So the distance between both the antenna would be important.
In a cisco doc,
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a008019f646.shtml
For 2.4GHz wavelength = 12.5cm and for 5GHz wavelength = 6cm.
Hence for 2.4GHz wavelength,
Dist bet diversity Ant = 12.5cms Or 25cms or 37.5cms or 50cms
now from below POST:
http://forums.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Wireless%20-%20Mobility&topic=WLAN%20Radio%20Standards&topicID=.ee6e8c2&fromOutline=&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.2cc18267
The spacing can be in multiples but is best in multiples of odd numbers. 1x or 3x. This allows for the phase to be always 100% out for the opposing antennae. 2x could cause phase shift overlay and could result in both antennae receiving the same phase shift differentiation.
Is this true? then my choise would narrow down to "Dist bet diversity Ant=12.5cms or 37.5cms'
But from below POST iam confused regarding point 1 and 2 (I have put them pointwise just for reference)
http://forums.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Wireless%20-%20Mobility&topic=WLAN%20Radio%20Standards&topicID=.ee6e8c2&fromOutline=&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.2cc0332d
1. Never should you have the antennas exactly one wavelength away from each other. For the frequency of 2400, one wavelength is 4.92"... so any distance that is not a multiple of 4.92 and no more than a multiple of 4 is recommended.
2. You should use 1/2 wavelength distances and to be safe no more than multiple of 3.
My Questions are
1. Should the distance between my Antennas for diversity be any len more than 12.5 cms and less than 25cms or more than 37.5cms and less than 50cms?
2. Is it that the distance between my Antennas for diversity should not be exactly equal to the multiple of wavelengths? (12.5cms, 25cms, 37.5cms, 50cms)
3. Is it that i have to use only odd wavelengths multiples? (12.5cms, 37.5cms) and should not use even multiples?
4. The use 1/2 wavelength distances between the antennas is diversity. Is it ok? or is the minimum 1 wavelength as specfied in the cisco doc.
Also from the below POST iam confused regarding the MAX distance:
http://forums.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Wireless%20-%20Mobility&topic=WLAN%20Radio%20Standards&topicID=.ee6e8c2&fromOutline=&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1dd7905b
"Distance beyond 1-2 wavelengths is not critical. Since the antennas are not transmitting and/or receiving at the same time,there is no real chance of overloading the other antenna or radio front-end. "
There's not really a "max distance" as far as diversity is concerned. By placing the antennas some distance apart (the minimum, I believe, is ~one wavelength), you optimize the chance that a signal that is null (or interfered with) on one side, isn't on the other.
my question is
5. Is there a max distance between the antennas in diversity (like we read 4xwavelength) or there is no max distance? then wont there evolve a different RF coverage area for both the Antennas?
Another important question
> If my wireless card supports 5GHZ and 2.4GHZ and hence my antennas would be dual band. Then to achive antenna Diversity, what would be the distance between the two antennas? The minimum distance should be 1 wavelength, so For 2.4GHz wavelength = 12.5cm and for 5GHz wavelength = 6cm.
For a dual band antenna? how much should it be? Whats the min and max.
someone please can help me solve the huge confusion in my mind :)

First, let me say that this is certainly a well-done post, good job of back-tracking the links and expressing your questions.
The next thing is that there are more than a few nuances when dealing with RF and signal transmission and propagation, so to cover a specific topic fully would frequently cover more space than provided.
With all that dancing out of the way ;-), I'll take a shot at answering your questions...
"Is there a max distance ... ?"
Well, no, not really ... but there is a max *effective* distance and a fairly specific point of diminishing returns (as mentioned in the linked posts).
The design and implementation goal is to create a sort of "binocular view" with the antennas, such that the chance of a "null" is reduced, such that the signal / pattern developed from the diverse pair of antennas will create at least one clean and clear (reduced multipath, reduced nulls, possibly better line of sight)signal to (ideally) every client in the coverage area.
Even though only one antenna is active at any given time, having any conductor within the radiated field will distort the transmission envelope, either positively (in the case of a Yagi) or negatively (in the case of a grounded conductor, like a sprinkler head).
The amount of the distortion, and the shape of the distortion are functions of the size and shape of the parasitic element. The effect is so variable that it is one of the foundations for the contention that a comprehensive site survey is not really an option, it's mandatory; it's truely the only way to see what adaptations are necessary to make the "rules of thumb" function in the specific location.
Regarding antennas handling multiple bands:
The antennas (in this case) are close to resonant multiples. The differences are such that the logical / electrical length can be adjusted by adding inductive or capacitive loads at the transmitter or feed point.
Even though the physical shape of the antennas may be different from model to model, the electrical load characteristics for a given band / antenna remain similar, so electronically compensating to make an antenna primarily designed for 2.4GHz function well for 5.6GHz is not especially difficult. Going from the longer wavelength to the shorter is more effective and easier to design than trying to go the other way.
For example, a quarter-wave 2.4GHz antenna is easily compensated to create a good half wave (or loaded 5/8) 5.6GHz antenna.
So, (finally) to provide the proper spacing for a diverse pair of multi-band antennas, figure for the longer wavelength (2.4GHz in this case) and the (roughly double) distance is likely to be acceptable for the higher wavelength. The spacing doesn't have to be exact; personally, I used to shoot for ~18" (variable with the mounting location and antenna type)and I always had pretty good luck, according to the follow-up survey.
Because of the jillions of possible variables, you can't just calculate and hang the antennas and be done ... a survey should be done to verify the installations and to make educated adjustments that will optimize the system for that specific location and environment.
The initial calculations are ideal guidelines, then you make adjustments to cover things like metal wall studs, sprinkler heads, the boss' favorite "wall o' vines" ... you will rarely get a perfect environment, adjustments are almost always required.
It's late and I'm starting to babble ... ponder the above and let us know if it helped any. There are a great bunch of experienced folks here, and I think this will be the start of a great discussion.
Good Luck
Scott

I need to buy an External Portable HD 500GB for my iMac OSX 10.4.11 (PowerPc 2004). Can anybody please tell me a few Names/Products that are compatible? Please if you can, just tell me some product name, instead what generical characteristics it needs :s

Hello
I have been reading forums and forums and after days of research l gave up.
Unfortunately it seems that nobody has provided a name of a brand yet.
Although the effort is very admirable, l am still at the point of finding myself back at square one, with an unanswered question:
Which portable external HD 500GB should l purchase for my iMac 10.4.11 (Power PC 2004)?
I know there are many different ones, but l hope at least somebody can suggest one.
A clear Name of a Product that matches the compatibility.
I am not an expert of computer and so all the theoretical explanations of technical characteristics mean next to nothing to me :(
I hope that someone kind enough to halo me out with this will be able to let me know.
My most greatefull thank you to you all in advance :)
And1001

Try http://eshop.macsales.com/shop/hard-drives/External-Enclosures/
If you have question about any items on their page, MacSales has an extremely god technical support staff.
Allan

WRT54G V7 Left antenna output is not working.

Hi,
I had a new WRT54G V7 and discoverd that the left antenna (facing the front of the device) is giving no output. The right-hand version is working properly.
Now I received a RMA and it is still the same! Already upgraded to v7.00.1, but without success.
I know that I have to use both antennas, but if one of them is giving no output, what is the point?
Anyone the same experience?
Thanks and regards,
Rob.
Message Edited by Rob040 on 08-29-2006 12:17 PM
Message Edited by Rob040 on 08-29-2006 01:08 PM

Hi, before configuring the router I removed both antennas to prevent getting access from or to another device.
After configuration I placed only one antenna, went one floor down to check connection with my laptop and was surprised that the laptop could not find the router.
Took the laptop upstairs, placed it nearby the router and got a connection. Walking away with the laptop showed me that the signal was very poor (lost connection in the next room, seperated by a brickwall).
Then I swapped the antenna to the right-hand connector and saw a very strong signal, also downstrairs. (My previous router, a WRT54G v2.0 did give the same strength on both antennas).
I use the original firmware, so I cannot see or change anything (at least I do not know how) to adapt antenna settings. Or is there a hidden field that I do not know of?

TS1702 When I update to IOS6 on my 4S Facebook does not work properly, the news feed never updates it only says no new storeys and shows a picture of an antenna. When I reset my phone and go back to IOS5 Facebook works fine. What's up with IOS6 ????

When I update my iPhone 4S to iOS six Facebook does not work properly the newsfeed doesn't load properly and I can never see what's going on all I see is a picture of an antenna and a little thing underneath it says no new stories when I reset my phone back to iOS 5 then it works just fine and I don't have any issues so there must be something wrong with iOS six that isn't letting Facebook load properly

No I did not use any unauthorized methods for anything, I simply reset my phone back to factory.
<Edited By Host>

Can not see long text description of a characteristics in portal

Hi experts,
I designed two queries via Query designer and published them to portal but I can not see the the long text description of "Name" attribute belongs to 0BPARTNER characteristics.
One of the queries shows only the last name of partner in portal while it is showing full name and last name in Bex Analyzer. The other query shows only the key value in both portal and Bex Analyzer.
I want to see long text description in both queries.
For an additional information, I'm extracting data from CRM 5.00 to BW 7.00
What will be the reason for this and how can I solve it?
Can anyone help me for this issue, it's a kind of emergency situation.

Hi,
we have the same problem.
We want to change <b>only</b> in the screen variable the hierarchy text (from default to long\medium text) but even if there's a possibility to do this, really it doesn't happen anything - it' s possible when you start query, in the selection screen inside every the variable there's a command "User Settings" in which manage what you want to see (I put display custom, as text, medium text).
I try to do this also in query analizer, selecting variable (hierarchy) and enter in this (user setting), changing in display custom as text - medium text, but even if I save this settings, really doesn't happen anything.
It seems the system isn't sensitive to this selection...
By now, if someone has an answer, please write us!
Thanks in advance,
Alessandra Mirone

Couldn't assign target field for characteristics in PI sheet config

Dear All,
I'm trying to configure PI sheet, i have created Process message categories as well as characteristics. Everything is working fine except the inputted value (for example weight, density) in PI sheet not getting transferred into process order. When i try to assign the destination message to the message characteristics, i couldn't find any value for the message categories which i created. System shows the below error:
No entries found that match selection criteria
Message no. SV004
Even if i try to assign manually,system shows with error
Corresponding entry in "Destinations/Message categories" missing
Message no. SV534
Steps i did :
1. Created new Control Recipe destination(ZCR) ( by copying sap provided CRD "05")
2. Created new characteristics group(ZMCG) for process message ( by copying sap provided group "PPPI_01") and released
3. Created Characteristics (ex. weight, density) with chars. group as ZMCG
4. Didn't create any new message destination (Trying to use defaut "PI01")
5. Create New Process Message Category(ZTEST) and assign the characteristics (weight, density along with PPPI_PROCESS_ORDER)
The problem is i couldn't assign target field as "process order" to update the inputted values for the characteristics (weight, density) in O13C
I gone through all the node in "Process Management" but unfortunately i don't know where we have to assign this destination. I hope if i assign the destination message as "PI01" with characteristics "PPPI_PROCESS_ORDER" along with target field as "PROCESS_ORDER" for the characteristics it may update into process order. How to assign the destination message for the message category?
Thanks

Hi Kumar,
Thanks. When i try to assign the destination message for the characteristics through O13C, i got the error message that "No entries found that match selection criteria". It means there is no characteristics with the combination of Process message category "ZTEST" with Destination as "PI01". If i trying to assign manually through "New entries" option, systems shows with the error "Corresponding entry in "Destinations/Message categories" missing.
Thanks

What is diffrernce between key figures and characteristics?

Hi all,
I am a newbie to SAP BI....i am doing Masters in ERP(SAP)....I have confusion about what is basic difference between key figures and characteristics?
Why do we have to define attributes in characteristics?
If any one can refer me a thread that answers my questions or explain with very lucid example I will highly appreciate it.....please answer this question as I have just spend 4-5 months studying BI and have not really implemented in the Industry but we do have access to SAP BI where we perform tutorials....
Also please let me know the links to materials where basics of BI are explained in a very simple way.....
Thanks,
Regards,
Rahul

KF is anything which can quantitatively measured: Amount, Number, Value, Price... whatever you want to measure is called Key Figure. This key figures are also called KPI (Key Performance Indicator). If you want to know the number of sales orders, the number of deliveries, the amount of deliveries... all are key figures
And to add to that, key figures are also divided into two:
Cumulative KF: Like I said, amount, value, price
Non-cumulative KF, this is different kind of key figures which shouldn't be summed up, for example: Age, Inventory, Number of Employees. When you measure this key figures, you don't add the age of every body, because that doesn't make any sense, but adding the sum of all deliveries, or adding all Sales does make sense, that is the difference between the two key figures.
Characteristics: are anything which couldn't be quantitatively measured: material, customer, plant, employee ID and so on...
Aways, in BI you measure the KF against the Key figures..
thanks.
Wond

Square root formula in Calculated Characteristics

Have a great days.
There are two MIC in my inspection plan. first (0010) is for entering number and another (0020) is calculated characteristics. I want to calculate the square root of 0010 charateristics in 0020.
What should be teh formula to put in 0020 char.
Please guide. thanks in advance.
Regards,
Dipesh Bhavsar
Edited by: dipeshbhavsar1982 on Jul 31, 2011 9:41 AM

HI
0020 MIC should be created with control indicator for formula tab(calc.characteristic)
and in quality plan assign the first MIC as normal
and assign second MIC then system will ask a formula ...
there you can give the formula in terms of character
example (0010)2
Faisal

Antenna characteristics of AP 1130AG

Similar Messages

Maybe you are looking for