Was involved in a temporary link we installed an AF24 where it was co-located with an AF24HD. The two remote locations were less than a couple degrees apart, and we had all kinds of grief trying to put the two masters (the co-located radios) on the same frequency in FD mode. We got it to run the best by running the two master frequencies opposite each other (high-low frequency). They did operate that way in FD. It did not make sense, but indicated to me that the side-bleed on these is minimal.

bp
<part15sbs{at}gmail{dot}com>

On 3/20/2016 11:52 AM, Mathew Howard wrote:
I guess the reason for running them in HD mode would be so you only need to use one channel... not typically a problem at 24ghz, but there are probably a few cases where it's useful.

I wonder if two links that were more or less aimed the same direction would work in half duplex mode...

On Sun, Mar 20, 2016 at 10:25 AM, John Woodfield <[email protected] <mailto:[email protected]>> wrote:

    Right. Full duplex doesn't need sync. Didn't realize they would
    run in HD. No idea why one would run them in HD mode

    Sent from my iPhone

    On Mar 20, 2016, at 11:00 AM, Mathew Howard <[email protected]
    <mailto:[email protected]>> wrote:

    They can run in half duplex mode. I know the AF24 can only use
    100mhz channels, I'm not sure if that's the case for the AF24HD
    or not, but I believe it is.

    Also, you don't really need sync with full duplex, as long as the
    other end can't see more than one of them and you keep all of
    them on the tower on either the high or the low channel, they
    should work fine.

    On Sun, Mar 20, 2016 at 9:51 AM, John Woodfield
    <[email protected] <mailto:[email protected]>> wrote:

        How if they are full duplex?

        Sent from my iPhone

        On Mar 20, 2016, at 10:40 AM, Jeremy <[email protected]
        <mailto:[email protected]>> wrote:

        These totally really sync.

        On Sun, Mar 20, 2016 at 8:39 AM, Kurt Fankhauser
        <[email protected] <mailto:[email protected]>>
        wrote:

            Do both the airfiber 24ghz non-HD and HD version use the
            same channel widths? Also are there two non overlapping
            channels in the 24ghz band or do these things totally
            really on sync for putting multiple units on 1 tower?

            On Sat, Mar 19, 2016 at 6:26 PM, Gino Villarini
            <[email protected] <mailto:[email protected]>> wrote:

                we have lots with 8-9 deg separation

                Sent from Outlook Mobile <https://aka.ms/qtex0l>




                On Sat, Mar 19, 2016 at 3:03 PM -0700, "Jeremy"
                <[email protected]
                <mailto:[email protected]>> wrote:

                    I have heard people saying that you only need 8
                    degrees with these.

                    On Sat, Mar 19, 2016 at 2:59 PM, Eric Kuhnke
                    <[email protected]
                    <mailto:[email protected]>> wrote:

                        You can do this with the regular AF24 or the
                        AF24HD, just ensure that both units at the
                        single location are either "high" or "low".

                        40 degrees azimuth only separation, or is
                        there also an elevation difference in the aim?

                        Even 15 degrees azimuth can be enough.


                        On Sat, Mar 19, 2016 at 1:56 PM, Sterling
                        Jacobson <[email protected]
                        <mailto:[email protected]>> wrote:

                            Can I run two Airfiber 24Ghz units full
                            duplex from one location if they are
                            separated about 40 degrees?

                            Is this a standard feature of sync with
                            GPS on the regular units? Or do I need
                            the 1Gbps HD units?








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