I read the article in following text, Do you think this will help?

XBee & XBee Gateway
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1

I am using XBee PRO (no suffix, no S2 or series 2, etc…)
I set them with XCTU, should be 115,200 baud.

I did find this article on your site which may be the answer:

http://www.digi.com/support/forum/4787/using-the-xbee-at-115-200-baud-updated-16-march-2010

My PC is FAST, I did have a long cable on it, so will try a short one between USB and XBee Pro module.

My Embedded controller has a fast clock, 75+ MHz.
I could try adding the extra stop bit, or change baud slightly as is indicated in the article.

2

I am not sure what your issue is as you have not indicated it. Can you tell us what it is you are seeing and exactly which module you are working with?

3

I suppose I asked a related question instead of whatever I was supposed to do with previous thread. refer to “related to an answer for” above. I did not find and “add related information” button, this time I will add a comment.

I have a micro-controller that sends 87 bytes across interface (includes prefix, float data, comma separators, a suffix, a checksum and a carriage return (0x0D) to the XBee PRO (no suffix, no S2 or series 2, etc…) at 115,200 baud. I am receiving on an identical XBee PRO (no suffix, no S2 or series 2, etc…) to an i7 PC running an MSFT Visual basic (2010 version) GUI.
When I look at received data, I lose about 2 to 3 bytes per 87 byte transmission string. Checksum does not add up either.

Why are they missing?

4

What is the exact part number and firmware version of the modules you are using?

5

The part number is XBP24-DMWIT-250 revB
0013A200 403B7633

Will have to get back with firmware version, I do not know how to get that easily. I have updated some a year ago.

6

I would suggest looking at the NP command. The NP command reports the maximum size of the data pay load one RF packet can be.