How can we tell from a WiFi card spec whether the NIC is 2.4GHz or5GHz, or both?

Discussion in 'Wireless Internet' started by Ewald Böhm, Sep 7, 2015.

  1. Ewald Böhm

    Ewald Böhm Guest

    How can we tell from an HP WiFi card spec whether the NIC is 2.4GHz or 5GHz,
    or both?

    I'm trying to help my sister buy an HP laptop on the web.

    My problem is that I contacted HP Support (via their chat mechanism) because USA
    phone support is not open now, and technical support isn't open tomorrow.

    All I want to know is HOW to tell if a WiFi card has both 2.4GHz and 5GHz.

    For $300 at Costco, plus $30 for shipping, this seems to be a decent 15.6-inch
    display laptop:
    http://www.costco.com/HP-15z-Laptop-|-AMD-E1-|-Windows-10.product.100222779.html

    The main drawback from that Costco offering is that the WiFi isn't "ac", there's
    no mention of bluetooth, and the laptop doesn't come with Office 2013.

    But, we can fix that at the HP web site.

    If we go to the HP site to buy it, we can customize it to add what Costco doesn't
    have (and get free shipping).
    http://store.hp.com/us/en/pdp/Laptops/hp-pavilion-15z-laptop-m7d88av-1#!&TabName=specs

    0. We start with the HP price of $350 which comes with twice as much memory as
    Costco's (4GB -> 8GB) plus free shipping (worth $30), so it's only $20 more
    than the Costco price.
    1. We add the Microsoft Office Home & Student 2013 from HP for an extra $140 (either
    boxed, or already installed - I suggest they get the box for easier re-use later).
    https://store.hp.com/webapp/wcs/stores/servlet/CTOAddonsView?partNumber=QM4342
    2. We add a WiFi "ac" card from HP for an extra $30 but is it dual band, 2.4GHz and
    5GHz or not?
    3. We add an extra wireless mouse and keyboard (no wires!) for $30 (because my sis
    wants that).
    https://store.hp.com/webapp/wcs/stores/servlet/CTOAddonsView?partNumber=LV290AA#ABA
    The resulting price is $550 + tax (free shipping).

    For that price, I see she gets a good laptop, but I chatted for half an hour with the HP
    sales chat people and they couldn't confirm if this 802.11 n/ac laptop has both
    2.4GHz and 5GHz or if it only has one of those two frequencies.

    HP chat sent me this URL but it just confirms that both "ac" and "n" don't have to be dual
    band; either one can be a single band. Also, it confirmed the 1x1 or 2x2 or 4x4 just means
    the number of dedicated data transmit and data receive antennas, which says absolutely
    nothing about the frequency.
    http://www.intel.com/content/dam/ww...nts/pdf/next-gen-80211ac-wifi-for-dummies.pdf

    My question is ...
    How can we tell from the HP WiFi card spec whether the NIC is 2.4GHz or 5GHz, or both?
     
    Ewald Böhm, Sep 7, 2015
    #1
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  2. Looks at the specs. If it says 802.11 followed by:
    b/g = 2.4 GHz only
    b/g/n = 2.4 GHz only
    a = 5 GHz only
    a/b/g/n = 2.4 and 5 GHz
    The key is the "a" as in 802.11a, which is 5 GHz only.
    Broken link. Try:
    <http://reviews.costco.com/2070/1000...ore-a10-backlit-keyboard-reviews/reviews.htm>
    which says:
    802.11b/g/n WLAN
    which is 2.4 GHz only. You might want to read the reviews.
    A BlueGoof dongle can be plugged into the a USB port.
    <http://www.ebay.com/itm/321216764033>
    <http://www.ebay.com/itm/171217973745>
    Buy a few spares as I've been shipped defective receivers.

    Office 2013 is usually extra. If you must have Microsoft Office, look
    at Office 365 or the various Office Mutations available. Or, use free
    open source software such as Libre Office or Open Office. There are
    also Office alternatives:
    <http://www.informationweek.com/soft...microsoft-office-alternatives/d/d-id/1320386>
    <http://www.digitaltrends.com/computing/best-microsoft-office-alternatives/>
    <http://www.pcworld.com/article/2010005/5-free-open-source-alternatives-to-microsoft-office.html>

    Still nym shifting?
     
    Jeff Liebermann, Sep 7, 2015
    #2
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  3. Ewald Böhm

    tony944 Guest

    I am lost on the questions and answers that you guys are posting.
    I never hear of different WiFi to me all are universal speed depend
    on your OS system, and the host and router if in use. as much I know all
    laptops
    have capability to hook to WiFi but you will need password unless system is
    open.
    no to many of those around but you can be lucky.

    "EwaldBöhm" wrote in message
    How can we tell from an HP WiFi card spec whether the NIC is 2.4GHz or 5GHz,
    or both?

    I'm trying to help my sister buy an HP laptop on the web.

    My problem is that I contacted HP Support (via their chat mechanism) because
    USA
    phone support is not open now, and technical support isn't open tomorrow.

    All I want to know is HOW to tell if a WiFi card has both 2.4GHz and 5GHz.

    For $300 at Costco, plus $30 for shipping, this seems to be a decent
    15.6-inch
    display laptop:
    http://www.costco.com/HP-15z-Laptop-|-AMD-E1-|-Windows-10.product.100222779.html

    The main drawback from that Costco offering is that the WiFi isn't "ac",
    there's
    no mention of bluetooth, and the laptop doesn't come with Office 2013.

    But, we can fix that at the HP web site.

    If we go to the HP site to buy it, we can customize it to add what Costco
    doesn't
    have (and get free shipping).
    http://store.hp.com/us/en/pdp/Laptops/hp-pavilion-15z-laptop-m7d88av-1#!&TabName=specs

    0. We start with the HP price of $350 which comes with twice as much memory
    as
    Costco's (4GB -> 8GB) plus free shipping (worth $30), so it's only $20
    more
    than the Costco price.
    1. We add the Microsoft Office Home & Student 2013 from HP for an extra $140
    (either
    boxed, or already installed - I suggest they get the box for easier
    re-use later).
    https://store.hp.com/webapp/wcs/stores/servlet/CTOAddonsView?partNumber=QM4342
    2. We add a WiFi "ac" card from HP for an extra $30 but is it dual band,
    2.4GHz and
    5GHz or not?
    3. We add an extra wireless mouse and keyboard (no wires!) for $30 (because
    my sis
    wants that).
    https://store.hp.com/webapp/wcs/stores/servlet/CTOAddonsView?partNumber=LV290AA#ABA
    The resulting price is $550 + tax (free shipping).

    For that price, I see she gets a good laptop, but I chatted for half an hour
    with the HP
    sales chat people and they couldn't confirm if this 802.11 n/ac laptop has
    both
    2.4GHz and 5GHz or if it only has one of those two frequencies.

    HP chat sent me this URL but it just confirms that both "ac" and "n" don't
    have to be dual
    band; either one can be a single band. Also, it confirmed the 1x1 or 2x2 or
    4x4 just means
    the number of dedicated data transmit and data receive antennas, which says
    absolutely
    nothing about the frequency.
    http://www.intel.com/content/dam/ww...nts/pdf/next-gen-80211ac-wifi-for-dummies.pdf

    My question is ...
    How can we tell from the HP WiFi card spec whether the NIC is 2.4GHz or
    5GHz, or both?
     
    tony944, Sep 7, 2015
    #3
  4. Ewald Böhm

    Tony Hwang Guest

     
    Tony Hwang, Sep 7, 2015
    #4
  5. Ewald Böhm

    Tony Hwang Guest

     
    Tony Hwang, Sep 7, 2015
    #5
  6. Ewald Böhm

    Tony Hwang Guest

    Tony Hwang wrote:>>
    http://www.intel.com/content/dam/ww...nts/pdf/next-gen-80211ac-wifi-for-dummies.pdf
    Hi,
    -AC mode runs on 5GHz band, -N can run on either.
    So, it'll be dual band card, 2 stream one(2 antennas)
    Full -AC needs 4 antennas and there are almost no such thing
    yet for users. Of course it'll have Gbit Ethernet controller too.
    Does it have Bluetooth? Bluetooth mouse and keyboard?
    8 GB memory is good. You don't have to spend 140.00 on MS Office.
    Freeware Openoffice is compatible with MS Office. Let her try it and
    you can buy MS later on student discount. And what cpu, and Video
    controller?(what is native resolution?) I am sure the laptop will have
    HDMI port and sufficient no. of USB port. And my(very robust game
    machine with enough cpu and video controller power) daily use laptop is
    14", i7 quad cpu, 8GB memory Nvidia 740M video card and DVD r/w drive,
    etc. gotten for ~500.00 on eBay. Built-like tank. Never let me down. I
    never owned HP laptop. Personally I just don't like it. But I used many
    different Enterprise grade HP work stations or server.
    Most people use Intel 7260 dual band WiFi card. I have it in all our
    laptop except my wife's Asus GX60 which has Bigfoot Killer N card.
    I seldom use desktop any more. At home I use 17" Asus ROG with SSDs,
    16GB memory, Nvidia 840m video card, i7 quad cpu, Blue ray R/W drive,
    etc. I use this for my real work. triple boot, W7 x64, Ultimate, W10 Pro
    and Ubuntu. (What real work? I am retired old fart, LOL!)
     
    Tony Hwang, Sep 7, 2015
    #6
  7. Ewald Böhm

    Ewald Böhm Guest

    So, if it doesn't have "a" (all by itself and not with "ac"),
    then it's not 5GHz? Is that correct?
    This link worked for me just now:
    http://www.costco.com/CTOConfigureC...eId=10301&refine=&categoryId=56001&prodtype=2
    Sad story. Long story. Experience. Nothing else is Microsoft Office.
    You and I can handle any office lookalike program, but teachers can't.
    Office 365 is stupid, for anyone buying only 1 copy of Home & Student,
    and who is still using Office 2007, which means they'd pay for Office
    ten times over with the subscription than with the one price.

    Back to the "a", which is 5GHz and "g" which is 2.4GHz.
    What if it's 802.11 b/g/n/ac ?
     
    Ewald Böhm, Sep 8, 2015
    #7
  8. Ewald Böhm

    Ewald Böhm Guest

    Maybe. Maybe not.
    Jeff just explained that only "a" has 5GHz.
    The rest can be 2.4 GHz.
     
    Ewald Böhm, Sep 8, 2015
    #8
  9. Ewald Böhm

    Ewald Böhm Guest

    Basically, the WiFi cards for the Costco & HP web pages, do NOT list
    the frequency. I won't recommend a laptop that does not have *both*
    2.4GHz and 5GHz.

    I just want to know how I can be sure of that, when they don't bother
    to list the frequencies in the WiFi specs!

    Here is the HP spec for that laptop:
    http://store.hp.com/us/en/pdp/Laptops/hp-pavilion-15z-laptop-m7d88av-1

    I can't tell which WiFi card has *both* 2.4GHz and 5GHz.
     
    Ewald Böhm, Sep 8, 2015
    #9
  10. Ewald Böhm

    Ewald Böhm Guest

    Ewald Böhm, Sep 8, 2015
    #10
  11. No. Both 802.11a and 802.11ac are 5 GHz only. Just look for the "a"
    and it should be able to do 5 GHz in some manner.
    The WLAN card is listed as "802.11b/g/n WLAN [1x1]" which will NOT do
    5 GHz.
    Are you sure? Office 365 can be installed on 5 machines. If the
    skool has 5 machines of any type, which makes the price for each
    machine about $20/year.
    <http://www.microsoftstore.com/store/msusa/en_US/pdp/Office-365-Home/productID.286395000>
    Meanwhile, Home and Student is $140 and should last about 5 to 7 years
    before it become too old to use. At an optimistic 7 years, that's the
    same $20/year per machine as Office 365.
    No such thing. In order to do "ac", it will need to also do "a". So
    the typical designation will be:
    802.11 a/b/g/n/ac
     
    Jeff Liebermann, Sep 8, 2015
    #11
  12. Ewald Böhm

    Tony Hwang Guest

    I know who Jeff is. -a is another mode consumers do not bother.
    I can buy a legit key for MS Office 2015 for 30.00 or so.
    Download it and use that key to activate. Always worked for me.
    I even bought keys for my surveillance camera use on Synology NAS.
    Real =AC mode, 80MHz wide is full -AC with 4 MIMO(4 antennas) and some
    will work on MU-MIMO(yet to come by Qualcom, Quantenna, etc.)
    You just specify dual band card as an option. Some HP laptops don't
    like any card. HP has white list of WiFi card.
     
    Tony Hwang, Sep 8, 2015
    #12
  13. Yes, it works, after about 90 seconds of loading content from all over
    the web.
    I would guess the number 3 will certainly do 5 GHz. However, the web
    designers truncated the letters that designate the all the protocols,
    listing only the highest (fastest) 802.11ac. Presumably, that would
    include all the lesser protocols, including 802.11 a/b/g/n. However,
    I can't be certain without knowing the Intel model number of the
    wireless card.
     
    Jeff Liebermann, Sep 8, 2015
    #13
  14. Ewald Böhm

    Tony Hwang Guest

    Who cares about -b ancient slowest mode. G, N, AC. If it is AC card or
    router AC is downward compatible with slower modes.Student version lacks
    some features and miscellaneous things. Why do you think it is cheaper?
    WiFi is 2 way street one laptop has AC card does not mean it'll be
    faster, corresponding device at the other end should be AC
    capable too. If AC card talks to N card speed will be that of N.
     
    Tony Hwang, Sep 8, 2015
    #14
  15. Ewald Böhm

    Tony Hwang Guest

    The option Intel -AC card with Bluetooth is what you want then.
    This one is dual band(2.4GHz, 5GHz) This is AMD cpu based laptop.
    A10 is the top end one. Video card... Rxxxx. xxxx at higher number is
    better one. Any more questions? Don't forget to read reviews on this
    model to see whether buyers are happy or not.
     
    Tony Hwang, Sep 8, 2015
    #15
  16. Ewald Böhm

    Tony Hwang Guest

    Again No. 3 Looks like basic dual band being 1x1, not 2x2 or 3x3.
     
    Tony Hwang, Sep 8, 2015
    #16
  17. Ewald Böhm

    Ewald Böhm Guest

    I'm still confused.

    Number 3 is: "Intel 802.11ac WLAN and Bluetooth [1x1]".
    So, what does that tell us?

    Are we saying the "ac" is both 2.4GHz & 5GHz by virtue of the "a" in "ac"?
     
    Ewald Böhm, Sep 8, 2015
    #17
  18. Ewald Böhm

    Ewald Böhm Guest

    Unfortunately, the "typical" designation doesn't help us here.
    The HP spec, as you have seen, just says "ac" for the high end card.
    http://i.imgur.com/hBcFWkQ.jpg
     
    Ewald Böhm, Sep 8, 2015
    #18
  19. Ewald Böhm

    Ewald Böhm Guest

    I'm sure, but only because of arithmetic.

    She's a teacher. Not a school.

    She only has an ancient WinXP desktop that has Office 2007 on it.
    When she gets a new laptop, she needs a new Office anyway.

    1. Renting Office 365 for a laptop costs $100/year and can be put on 4
    more non WinXP machines that don't actually exist. After 7 years, renting
    cost her $700 for Office for that one laptop, which is more than the
    laptop costs.

    2. Buying Office 2013 costs her $140, and can be put on one desktop and
    one laptop. Since the desktop is WinXP, the additional license is moot,
    so, it costs her $140 for 7 years (or 10% less with the teacher discount).

    It's a no brainer, to me; but this isn't the question in the OP, so it's
    just an offshoot discussion which isn't at all confusing to me.
     
    Ewald Böhm, Sep 8, 2015
    #19
  20. Ewald Böhm

    Ed Pawlowski Guest

    There is one advantage. The dog eating the homework it too old to be
    believed these days. Now the excuse is, "My mother didn't pay this
    month's Word rent so it won't let me print"
     
    Ed Pawlowski, Sep 8, 2015
    #20
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