From: Laurence KL7 L <hellozerohellozero@hotmail.com>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
Thread-Topic: R: Re: LF: TX > RX isolation test
Thread-Index: AQHUHS2roWsqS4FZfk+81cjWbsiSUqSSQe+AgAAHfhs=
Date: Mon, 16 Jul 2018 20:16:35 +0000
Message-ID: <MWHPR1101MB2336A8011EC506B4CBC48564CF5D0@MWHPR1101MB2336.namprd11.prod.outlook.com>
References: <164a4355ec5.marcocadeddu@tin.it>,<5B4CF6D9.18052.2E1B0D0@roelof.ndb.demon.nl>
In-Reply-To: <5B4CF6D9.18052.2E1B0D0@roelof.ndb.demon.nl>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-messagesentrepresentingtype: 1
x-tmn: [HIRAfOjS8olwboBdltIM67Ot81ksTacWeRy7T/QxMRA=]
x-ms-publictraffictype: Email
x-microsoft-exchange-diagnostics: 1;CO1NAM04HT174;7:eI1yCt82+xNf0NLLv0tOwivPWo1DQcPyWyrtSx5g2j4bWyFs8f+MPaQTgkEifQt64Pjq2oAyoFvu4mZiL3GZhGJsAa+9NGdlhDvAiaeRWpPKQVTuOW6IKO90JLVBaiYCnE4a6mEu59aJWeiH8PfxafBs9yftgP1tvRygvU2p/aNAJQmcYtfdw2Stctg0yY34RCsyZRy9tnVysYN+in6QIX4kVT1kOWrdrSQKczKkIfC1SF7QZx8oKlSAUjxyDWHy
x-incomingheadercount: 46
x-eopattributedmessage: 0
x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(201702061078)(5061506573)(5061507331)(1603103135)(2017031320274)(2017031324274)(2017031323274)(2017031322404)(1603101448)(1601125500)(1701031045);SRVR:CO1NAM04HT174;
x-ms-traffictypediagnostic: CO1NAM04HT174:
x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(82015058);SRVR:CO1NAM04HT174;BCL:0;PCL:0;RULEID:;SRVR:CO1NAM04HT174;
x-forefront-prvs: 073515755F
x-forefront-antispam-report: SFV:NSPM;SFS:(7070007)(199004)(189003)(476003)(446003)(11346002)(104016004)(5660300001)(68736007)(25786009)(2351001)(229853002)(56003)(55016002)(74316002)(20460500001)(82202002)(5640700003)(46003)(6246003)(6436002)(97736004)(9686003)(102836004)(14444005)(6506007)(53546011)(6916009)(2900100001)(83332001)(256004)(6346003)(305945005)(33656002)(73972006)(99286004)(105586002)(486006)(106356001)(14454004)(575784001)(2501003)(8936002)(87572001)(7696005)(76176011)(86362001)(5250100002)(81156014)(8676002)(15852004);DIR:OUT;SFP:1901;SCL:1;SRVR:CO1NAM04HT174;H:MWHPR1101MB2336.namprd11.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;A:1;MX:1;LANG:;
received-spf: None (protection.outlook.com: hotmail.com does not designate
 permitted sender hosts)
authentication-results: spf=none (sender IP is )
 smtp.mailfrom=hellozerohellozero@hotmail.com; 
x-microsoft-antispam-message-info: FCf+M1/UvpRvtSVuNrrUqWVfqL+bMqdqbbZZc2L9qFqDiUpM2H10RHjLbHa+W2vN66lmdNfFa3shwI66u6wAN3DDgA9qPbxbPBBerRywT0nzmwzBzoxMuaMX3i+kTXQ88nzfc2eDaZU4FoAblGlRi9RggF8SmmxWZurX3xPYRf/sZv8nL+4XdHEifAQGxbFPXMfX8JT8bCa8ffz9qFlibXtq30iq7T971PIA082eTgU=
MIME-Version: 1.0
X-OriginatorOrg: hotmail.com
X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 074d7d4d-72e2-4a0a-9d89-73b16535e4cd
X-MS-Exchange-CrossTenant-Network-Message-Id: a7a4a0d2-e437-494d-d4f6-08d5eb590771
X-MS-Exchange-CrossTenant-rms-persistedconsumerorg: 074d7d4d-72e2-4a0a-9d89-73b16535e4cd
X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Jul 2018 20:16:35.1060
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Internet
X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1NAM04HT174
X-Spam-Score: 0.0 (/)
X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net",
 has NOT identified this incoming email as spam.  The original
 message has been attached to this so you can view it or label
 similar future email.  If you have any questions, see
 @@CONTACT_ADDRESS@@ for details.
 Content preview:  I can confirn the ruggedness too - close thunderstorm strikes
    using the pa0rdt probe in Ghana, Singapore, Namibia, Malaysia, Fiji, Indonesia
    and China etc all failed to destroy. Only one time the device failed was
   a very very close strike on the same tree as the probe was stationed Oklahoma!
    [...] 
 Content analysis details:   (0.0 points, 5.0 required)
  pts rule name              description
 ---- ---------------------- --------------------------------------------------
 -0.0 RCVD_IN_DNSWL_NONE     RBL: Sender listed at http://www.dnswl.org/, no
                             trust
                             [40.92.11.59 listed in list.dnswl.org]
  0.0 FREEMAIL_FROM          Sender email is commonly abused enduser mail provider
                             (hellozerohellozero[at]hotmail.com)
 -0.0 SPF_PASS               SPF: sender matches SPF record
 -0.0 SPF_HELO_PASS          SPF: HELO matches SPF record
  0.0 T_DKIM_INVALID         DKIM-Signature header exists but is not valid
X-Scan-Signature: 7001055fa59a9c23b9831ea6d317a074
Subject: Re: R: Re: LF: TX > RX isolation test
Content-Type: text/plain; charset="us-ascii"
X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com
X-Spam-Level: 
X-Spam-Status: No, hits=0.0 required=5.0 tests=FORGED_HOTMAIL_RCVD,
	TO_ADDRESS_EQ_REAL autolearn=no version=2.63
X-SA-Exim-Scanned: Yes
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
X-Listname: rsgb_lf_group
X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org
X-SA-Exim-Scanned: No; SAEximRunCond expanded to false
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by klubnl.pl id w6GKL55o003463

I can confirn the ruggedness too - close thunderstorm strikes using the pa0rdt probe in Ghana, Singapore, Namibia, Malaysia, Fiji,  Indonesia and China etc all failed to destroy. Only one time the device failed was a very very close strike on the same tree as the probe was stationed Oklahoma!


Laurence

> On Jul 16, 2018, at 11:54 AM, Roelof Bakker <roelof@ndb.demon.nl> wrote:
> 
> Hello Marco,
> 
> The J310 is a sturdy device.
> In a strong RF field the gate starts to conduct and the gate voltage does not rise any higher.
> The device protects itself so to speak.
> 
> Due to the small size of the 'PCB-antenna' of 30 x 40 mm, voltage build up due to nearby 
> thunderstorms is low compared to e.g. a 1 meter long whip antenna. Hence reports of defunct 
> antennas due to lightning are rare.
> 
> The most common cause of failure is accidentally sending 100 W RF or more up the feed-line! 
> 
> 73,
> Roelof, pa0rdt
> 
>