[amsat-bb] Looking for users of 2M2CP22 & 436CP42 or similar

[EC4TR Luis]

Hi Dimitry

Thanks for info, I decided in those antennas because I bought it at very
good price in the Italian M2 dealer and never thought before that it were
so expecials, the  2MXP22 are a good choice but to much long for my
project, I want to work SSB contest and satellite.
73 Luis
EC4TR

El mar., 31 jul. 2018 a las 13:28, Dimitry Borzenko (<dibor at iname.com>)
escribió:

> Hi Luis.
> I have use 2M2CP22 antenna as H and V with coax for each polarization
> routed  towards the end of the boom.
> I have change F-type connectors on the each dipole to the N-type.
> Antenna was connected to the external polarization switch box, all
> system was works GOOD, have many sat and EME QSOs.
> If U do not need CP antenna why U bought it and not 2MXP22.
>
> GL with ur project.
>
> de 4z5cp
>
> ------ Original Message ------
> From: "EC4TR Luis" <ec4tr.luis at gmail.com>
> To: amsat-bb at amsat.org
> Sent: 31.07.2018 11:53:06
> Subject: [amsat-bb] Looking for users of 2M2CP22 & 436CP42 or similar
>
> >Hi all
> >I just bought these two antennas and I want to use them without the
> >phaser for circular polarization.
> >
> >I want to use a switch for H and V in the mast, the idea is to use it
> >for terrestrial & satellite with vertical rotor.
> >
> >I also wanted to know if routing the two coaxial cables along the boom
> >until the horizontal crossbeam can affect the radiation diagram etc.
> >
> >I have consulted with the guys from M2 and they advise to route the
> >coaxial cables towards the end of the boom and leave them hanging, but
> >that makes the installation very complicated and will cause the boom to
> >go awry.
> >
> >They also tell me about the possibility that VSWR does not match in UHF
> >due to the phasing cables.
> >
> >Have any of you made similar changes with M2 antennas?
> >
> >This is the email exchanged with them
> >
> >
> >Hello Jose,
> >
> >If you route the feedlines down the boom, the gain, pattern and VSWR
> >will be degraded.  No metal can run parallel to the elements.  We
> >recommend our L-brace kit, http://www.m2inc.com/FGLBKAM so that your
> >coax is not hanging.  One L-brace kit is required per antenna.
> >
> >Additionally, if you remove all of the phasing cables, the VSWR may not
> >match the original settings (especially for 70cm).  The antenna
> >elements are tuned specifically to counteract any interaction with the
> >phasing cables.  You may (or may not) be able to achieve a reasonable
> >match when converted to V/H linear polarity.  We have not done any
> >engineering/testing in this configuration.
> >
> >Regards,
> >*/Robert Brown, KR7O/*
> >Marketing and Sales
> >
> >
> >73 Luis
> >EC4TR
> >-- https://www.qrz.com/db/ec4tr https://www.facebook.com/ECfourTR
> >https://twitter.com/EC4TR?lang=es
> >_______________________________________________
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> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
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>