# MC7354 and MC7455 antenna VSWR measurement **URL:** \ **Category:** IoT Modules\ **Created:** [October 24, 2018, 9:04pm UTC](https://forum.sierrawireless.com/t/mc7354-and-mc7455-antenna-vswr-measurement/14269 "2018-10-24T21:04:31Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![rdastous](https://avatars.discourse-cdn.com/v4/letter/r/d6d6ee/32.png) [@rdastous](https://forum.sierrawireless.com/u/rdastous)\ **Post date:** [October 24, 2018, 9:04pm UTC](https://forum.sierrawireless.com/t/mc7354-and-mc7455-antenna-vswr-measurement/14269/1 "2018-10-24T21:04:31Z")
Hi, We have around 2000 of these devices deployed in 4 different types of gateways and routers, using different type of external antenna, with most of them in unattended locations and often difficult to physically access. Is there a way, using AT commands or otherwise, to remotely measure the external antenna VSWR connected to these devices? Thanks for your help ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [October 25, 2018, 9:12am UTC](https://forum.sierrawireless.com/t/mc7354-and-mc7455-antenna-vswr-measurement/14269/2 "2018-10-25T09:12:52Z")
@rdastous, Unfortunately the short answer is no, the unit (or any of our units) do not have the capability to measure VSWR or impedance of the antenna it is presented with. Regards Matt ---
**Author:** ![rdastous](https://avatars.discourse-cdn.com/v4/letter/r/d6d6ee/32.png) [@rdastous](https://forum.sierrawireless.com/u/rdastous)\ **Post date:** [October 25, 2018, 10:14am UTC](https://forum.sierrawireless.com/t/mc7354-and-mc7455-antenna-vswr-measurement/14269/3 "2018-10-25T10:14:39Z")
Thanks Matt, That’s what I thought, but I wanted to make sure I was not missing something.