# 802.11b or a

**URL:** <https://boards.straightdope.com/t/802-11b-or-a/183227>\
**Category:** Factual Questions\
**Created:** [June 20, 2003, 6:01pm UTC](https://boards.straightdope.com/t/802-11b-or-a/183227 "2003-06-20T18:01:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dauerbach](https://avatars.discourse-cdn.com/v4/letter/d/c2a13f/32.png) [@dauerbach](https://boards.straightdope.com/u/dauerbach)\
**Post date:** [June 20, 2003, 6:01pm UTC](https://boards.straightdope.com/t/802-11b-or-a/183227/1 "2003-06-20T18:01:34Z")

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I understand that there is a new wireless standard available, 802.11a. Will this be backward comapatible with my current .11b cards? Does it transmit on a different frequency? Does it have superior range or simply superior bandwidth? The problem with my current program is range, not bandwidth and I am trying to decide if it is worth the money to change.

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**Author:** ![Berkut](https://avatars.discourse-cdn.com/v4/letter/b/a88e57/32.png) [@Berkut](https://boards.straightdope.com/u/Berkut)\
**Post date:** [June 20, 2003, 6:16pm UTC](https://boards.straightdope.com/t/802-11b-or-a/183227/2 "2003-06-20T18:16:55Z")

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> [@](#):
>
> \*Originally posted by dauerbach \*  
> **I understand that there is a new wireless standard available, 802.11a. Will this be backward comapatible with my current .11b cards?**

Sadly, no. There are dual (both 802.11a and 802.11b) access points that will allow the use of both, but it isn’t really backwards compatible.

> [@](#):
>
> **Does it transmit on a different frequency?**

Yes. 802.11b operates at 2.4 GHz, while 802.11a operates at 5 GHz

> [@](#):
>
> **Does it have superior range or simply superior bandwidth?**

It has superior bandwidth, somewhat less range.\*\*

> [@](#):
>
> The problem with my current program is range, not bandwidth and I am trying to decide if it is worth the money to change. \*\*

I think you should look into the new 802.11g. It has the speed of 802.11a, the range of 802.11b, and is backwards compatible with 802.11b. I suspect it will become very popular.
