Email Detail
Show an email
GET /hyperkitty/api/list/[email protected]/email/RARUS2UQSBK4W6G33IXNXLYQF3PGWPRR/
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/RARUS2UQSBK4W6G33IXNXLYQF3PGWPRR/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "emc33caa18-fbfe-40c1-b41b-244aca780cc5@int-station", "message_id_hash": "RARUS2UQSBK4W6G33IXNXLYQF3PGWPRR", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/DSIHFCKNEUUYNOW2WDEUWN2YXO53NJ5E/", "sender": { "address": "dibor (a) iname.com", "mailman_id": "2d556b4709124873859bd076d89ed525", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/2d556b4709124873859bd076d89ed525/emails/" }, "sender_name": "Dimitry Borzenko", "subject": "Re: [amsat-bb] Looking for users of 2M2CP22 & 436CP42 or similar", "date": "2018-07-31T11:27:03Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/DSIHFCKNEUUYNOW2WDEUWN2YXO53NJ5E/", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/XP7TJSD3M5EQWS6LF6IGHEPSQE7BU2IQ/" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Hi Luis.\nI have use 2M2CP22 antenna as H and V with coax for each polarization \nrouted towards the end of the boom.\nI have change F-type connectors on the each dipole to the N-type.\nAntenna was connected to the external polarization switch box, all \nsystem was works GOOD, have many sat and EME QSOs.\nIf U do not need CP antenna why U bought it and not 2MXP22.\n\nGL with ur project.\n\nde 4z5cp\n\n------ Original Message ------\nFrom: \"EC4TR Luis\" <[email protected]>\nTo: [email protected]\nSent: 31.07.2018 11:53:06\nSubject: [amsat-bb] Looking for users of 2M2CP22 & 436CP42 or similar\n\n>Hi all\n>I just bought these two antennas and I want to use them without the \n>phaser for circular polarization.\n>\n>I want to use a switch for H and V in the mast, the idea is to use it \n>for terrestrial & satellite with vertical rotor.\n>\n>I also wanted to know if routing the two coaxial cables along the boom \n>until the horizontal crossbeam can affect the radiation diagram etc.\n>\n>I have consulted with the guys from M2 and they advise to route the \n>coaxial cables towards the end of the boom and leave them hanging, but \n>that makes the installation very complicated and will cause the boom to \n>go awry.\n>\n>They also tell me about the possibility that VSWR does not match in UHF \n>due to the phasing cables.\n>\n>Have any of you made similar changes with M2 antennas?\n>\n>This is the email exchanged with them\n>\n>\n>Hello Jose,\n>\n>If you route the feedlines down the boom, the gain, pattern and VSWR \n>will be degraded. No metal can run parallel to the elements. We \n>recommend our L-brace kit, http://www.m2inc.com/FGLBKAM so that your \n>coax is not hanging. One L-brace kit is required per antenna.\n>\n>Additionally, if you remove all of the phasing cables, the VSWR may not \n>match the original settings (especially for 70cm). The antenna \n>elements are tuned specifically to counteract any interaction with the \n>phasing cables. You may (or may not) be able to achieve a reasonable \n>match when converted to V/H linear polarity. We have not done any \n>engineering/testing in this configuration.\n>\n>Regards,\n>*/Robert Brown, KR7O/*\n>Marketing and Sales\n>\n>\n>73 Luis\n>EC4TR\n>-- https://www.qrz.com/db/ec4tr https://www.facebook.com/ECfourTR \n>https://twitter.com/EC4TR?lang=es\n>_______________________________________________\n>Sent via [email protected]. AMSAT-NA makes this open forum available\n>to all interested persons worldwide without requiring membership. \n>Opinions expressed\n>are solely those of the author, and do not reflect the official views \n>of AMSAT-NA.\n>Not an AMSAT-NA member? Join now to support the amateur satellite \n>program!\n>Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n\n", "attachments": [] }