Question about Symbol Spectrum24 AP 4121 802.11b

1 Answer

Can you please tell me what is more reliable and better?

Spectrum24 802.11 or 802.11b?

thanks very much!

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  • figure360 Jan 13, 2009

    This is (figure360) writing back with more information.

    This is a business asking the question.

    We use two different wireless devices.

    One is the Symbol 6800 hand-held scanner, which is listed as using wireless:Optional IEEE standards-based Spectrum24 802.11 or 802.11b

    The other unit is the MK1250 Symbol barcode scanner (MK1250-0N0DAKBNTWR), listed as using wireless of just 802.11b.

    The 6800 unit has much better wireless connectivity than the MK1250, and I'm trying to figure out if it is because the 6800 uses the Optional IEEE standards-based Spectrum24 802.11 in addition to the 802.11b

    Thanks very much for any insight you can give me into this!

  • sahmd Apr 16, 2009

    i cannot make sutable IP address for my laptop to access neighbour WLAN

  • ricerz May 11, 2010

    To better answer your question I need more information.

    how many computers or devices are you trying to connect?

    What is the distance between all of the computers or devices?

    Are their any obstructions? Wireless signals have trouble going through thick concrete or brick walls but go through regular internal walls easy enough.

    Is this business or home use?

    You can learn more about the 802.11 Wireless standards here.


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I'm afraid you need to clarify:
If you refer to (old) Specification 802.11 — it applies to wireless LANs and provides 1 or 2 Mbps transmission in the 2.4 GHz band using either frequency hopping spread spectrum (FHSS) or direct sequence spread spectrum (DSSS). you can compare with 802.11b (also referred to as 802.11 High Rate or Wi-Fi) — an extension to 802.11 that applies to wireless LANS and provides 11 Mbps transmission (with a fallback to 5.5, 2 and 1-Mbps) in the 2.4 GHz band. 802.11b uses only DSSS. 802.11b was a 1999 ratification to the original 802.11 standard, allowing wireless functionality comparable to Ethernet.
But as suggested by ricerz from Wikipedia:
IEEE 802.11 is a set of standards implementing by apple wireless local area network (WLAN) computer communication in the 2.4, 3.6 and 5 GHz spectrum bands. They are maintained by the IEEE LAN/MAN Standards Committee (IEEE 802).
You cannot compare 802.11 with 802-11b: 802-11b is an implementation of part of the 802.11 standard.
You can compare: 11a (using 5Gh band) with 11b (using 2.4 Gh band)
You can compare 11 b with 11g or 11n standard. and select according to environment.
As per my personal experience Industrial or hostile installation was frequently done using 802-11A (less interferences, 54 Mb bandwith) new N standard with a peak of 300 Mb is now changing the scenario.
New accessories: Boosters, external antenna, WDS protocol to bridge WLan router, and new long range Wi-Fi are continuously changing performance, results and configuration

Posted on Jan 15, 2009

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