# Range Test **URL:** \ **Category:** XCTU\ **Created:** [October 27, 2009, 12:29pm UTC](https://forums.digi.com/t/range-test/2975 "2009-10-27T12:29:37Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![taher](https://avatars.discourse-cdn.com/v4/letter/t/d07c76/32.png) [@taher](https://forums.digi.com/u/taher)\ **Post date:** [October 27, 2009, 12:29pm UTC](https://forums.digi.com/t/range-test/2975/1 "2009-10-27T12:29:37Z")
Hi, yesterday I’ve received two XBee-PRO ZNet 2.5 Mesh RF Modules, and i want to start by doing range test. when i go to the terminal tab and print +++ —\> i get OK response atnd then i should discover the other XBee module ( as the quick start guide says ) but i don’t get any response !! what i have done wrong ??? and what should i do to do range test between the two modules ?? ---
**Author:** ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)\ **Post date:** [October 27, 2009, 12:46pm UTC](https://forums.digi.com/t/range-test/2975/2 "2009-10-27T12:46:02Z")
Taher, I would recommend following the steps outlined at [http://www.digi.com/support/kbase/kbaseresultdetl.jsp?id=2194](http://www.digi.com/support/kbase/kbaseresultdetl.jsp?id=2194) and issue a local network reset to the router. ---
**Author:** ![taher](https://avatars.discourse-cdn.com/v4/letter/t/d07c76/32.png) [@taher](https://forums.digi.com/u/taher)\ **Post date:** [October 27, 2009, 2:51pm UTC](https://forums.digi.com/t/range-test/2975/3 "2009-10-27T14:51:05Z")
these steps require 3 XBee module !! i only have 2 !! ---
**Author:** ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)\ **Post date:** [October 27, 2009, 6:43pm UTC](https://forums.digi.com/t/range-test/2975/4 "2009-10-27T18:43:33Z")
The steps actually only require 2 radios and not 3. They are only shown with 3 so you can see what it would be like to have a mesh occurring. ---
**Author:** ![taher](https://avatars.discourse-cdn.com/v4/letter/t/d07c76/32.png) [@taher](https://forums.digi.com/u/taher)\ **Post date:** [October 27, 2009, 7:24pm UTC](https://forums.digi.com/t/range-test/2975/5 "2009-10-27T19:24:04Z")
OK , When i type this command “ATND” i get and error . I’ve tried waiting 10 seconds as the quick guide says but still gives me an error . why ??? ---
**Author:** ![Admin1](https://avatars.discourse-cdn.com/v4/letter/a/bbce88/32.png) [@Admin1](https://forums.digi.com/u/Admin1)\ **Post date:** [October 28, 2009, 1:33pm UTC](https://forums.digi.com/t/range-test/2975/6 "2009-10-28T13:33:16Z")
Are one of these two modules a Coordinator? You specified ZNet 2.5, so having a Coordinator is a requirement for setting up the PAN (the other module would be configured as a Router). ---
**Author:** ![taher](https://avatars.discourse-cdn.com/v4/letter/t/d07c76/32.png) [@taher](https://forums.digi.com/u/taher)\ **Post date:** [October 28, 2009, 1:43pm UTC](https://forums.digi.com/t/range-test/2975/7 "2009-10-28T13:43:05Z")
yes, I’ve configured one of them as a coordinator and the other one as a router. once i enter the ATND command i get an error ! ---
**Author:** ![Admin1](https://avatars.discourse-cdn.com/v4/letter/a/bbce88/32.png) [@Admin1](https://forums.digi.com/u/Admin1)\ **Post date:** [October 28, 2009, 1:44pm UTC](https://forums.digi.com/t/range-test/2975/8 "2009-10-28T13:44:22Z")
What firmware is loaded on the module you’re doing ATND to? I’d like to test it here. ---
**Author:** ![taher](https://avatars.discourse-cdn.com/v4/letter/t/d07c76/32.png) [@taher](https://forums.digi.com/u/taher)\ **Post date:** [October 28, 2009, 4:21pm UTC](https://forums.digi.com/t/range-test/2975/9 "2009-10-28T16:21:23Z")
it is 1247 for the router and 1047 for the coordinator. Message was edited by: taher ---
**Author:** ![Admin1](https://avatars.discourse-cdn.com/v4/letter/a/bbce88/32.png) [@Admin1](https://forums.digi.com/u/Admin1)\ **Post date:** [October 28, 2009, 5:56pm UTC](https://forums.digi.com/t/range-test/2975/10 "2009-10-28T17:56:37Z")
An error on ATND from the AT Router would indicate that the Router isn’t associated to a Coordinator. You shouldn’t see the error on a Coordinator. ---
**Author:** ![taher](https://avatars.discourse-cdn.com/v4/letter/t/d07c76/32.png) [@taher](https://forums.digi.com/u/taher)\ **Post date:** [October 28, 2009, 6:34pm UTC](https://forums.digi.com/t/range-test/2975/11 "2009-10-28T18:34:29Z")
I’ve followed the steps shown here [http://www.sparkfun.com/commerce/tutorial\_info.php?tutorials\_id=122#Step1](http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=122#Step1) everything is working great now thank you all.