AREC https://vhf.nz/ en Porirua Grand Traverse Sunday 3 April 2016 https://vhf.nz/node/483 <span property="dc:title" class="field field--name-title field--type-string field--label-hidden">Porirua Grand Traverse Sunday 3 April 2016</span> <span rel="sioc:has_creator" class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/user/8" lang="" about="/user/8" typeof="schema:Person" property="schema:name" datatype="" class="username">ZL4JY</a></span> <span property="dc:date dc:created" datatype="xsd:dateTime" class="field field--name-created field--type-created field--label-hidden">Sun, 04/03/2016 - 11:58</span> <div class="field field--name-taxonomy-vocabulary-1 field--type-entity-reference field--label-above field--entity-reference-target-type-taxonomy-term clearfix"> <div class="field__label">WVHFG Categories</div> <div class="field__items"> <div class="field__item"><a href="/categories/arec" hreflang="en">AREC</a></div> <div class="field__item"><a href="/categories/events" hreflang="en">Events</a></div> </div> </div> <div property="content:encoded" class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>Various Wellington AREC Sections will be working together to support this multisport event on Sunday 3 April 2016. The event is being arranged by Ross ZL2UAC.  The event web site is here:</p> <p><a href="http://poriruagrandtraverse.co.nz/">http://poriruagrandtraverse.co.nz/</a></p> <p>More than 20 DMR portables and mobiles will be used for this event on the AREC ZL-TRBO network ZK talkgroup.</p> <p>On this day all international traffic talkgroups will not be available on TS1 of the DMR system so that the use of the ZK talkgroup can continue uninterrupted. The VK/ZL and ZL talkgroup will not be affected.</p> <p>- John, ZL4JY</p> <p> </p> </div> Sat, 02 Apr 2016 23:58:17 +0000 ZL4JY 483 at https://vhf.nz DMR Codeplug Downloads https://vhf.nz/node/475 <span property="dc:title" class="field field--name-title field--type-string field--label-hidden">DMR Codeplug Downloads</span> <span rel="sioc:has_creator" class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/user/8" lang="" about="/user/8" typeof="schema:Person" property="schema:name" datatype="" class="username">ZL4JY</a></span> <span property="dc:date dc:created" datatype="xsd:dateTime" class="field field--name-created field--type-created field--label-hidden">Mon, 08/03/2015 - 07:39</span> <div class="field field--name-taxonomy-vocabulary-1 field--type-entity-reference field--label-above field--entity-reference-target-type-taxonomy-term clearfix"> <div class="field__label">WVHFG Categories</div> <div class="field__items"> <div class="field__item"><a href="/categories/arec" hreflang="en">AREC</a></div> <div class="field__item"><a href="/categories/news" hreflang="en">News</a></div> </div> </div> <div property="content:encoded" class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>At the SIG for July 2015 <a href="http://vhf.org.nz/node/473">Code plug update and overview</a> the new ZL-TRBO codeplug structure was presented by Jeff ZL2JG.  These codeplug are now available at <a href="http://arec.info/downloads/">AREC.info Downloads</a> for download.</p> <p>A description of the various talkgroups are available at the <a href="http://arec.info/arec-dmr-network/">AREC DMR Network</a> page.  Lastly some interesting links have been put up on the Event &amp; Links page of the <a href="http://AREC.info">AREC.info</a> website.</p> <p>- John, ZL4JY</p> </div> Sun, 02 Aug 2015 19:39:07 +0000 ZL4JY 475 at https://vhf.nz SIG for July 2015: DMR Code plug update and overview https://vhf.nz/node/473 <span class="field field--name-title field--type-string field--label-hidden">SIG for July 2015: DMR Code plug update and overview </span> <span class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/users/zl2hd" lang="" about="/users/zl2hd" typeof="schema:Person" property="schema:name" datatype="" class="username">ZL2HD</a></span> <span class="field field--name-created field--type-created field--label-hidden">Tue, 07/07/2015 - 15:43</span> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>Since the DMR system was set up at Colonial Knob, a number of enhancements and extensions have occurred.  The code plugs determine the radio front panel channel setup, and changes have been made to make the radio easier to use when moving around the Wellington region, to support new DMR repeaters, and allow for the upcoming frequency changes.  Support for the analogue channels has been made within the local zone, and plenty of channels added to make the radios usable in a number of situations.</p> <p>This month we will have Jeff ZL2JG and John ZL4JY with us to talk about the code plug design and the progress that has been made in the DMR rollout.</p> <p>Tawa Community Centre, 7:30 pm Thursday 9 July 2015</p> </div> <div class="field field--name-taxonomy-vocabulary-1 field--type-entity-reference field--label-above field--entity-reference-target-type-taxonomy-term clearfix"> <div class="field__label">WVHFG Categories</div> <div class="field__items"> <div class="field__item"><a href="/categories/arec" hreflang="en">AREC</a></div> <div class="field__item"><a href="/categories/meetings" hreflang="en">Meetings</a></div> <div class="field__item"><a href="/categories/projects" hreflang="en">Projects</a></div> </div> </div> Tue, 07 Jul 2015 03:43:44 +0000 ZL2HD 473 at https://vhf.nz AREC in the news https://vhf.nz/node/467 <span property="dc:title" class="field field--name-title field--type-string field--label-hidden">AREC in the news</span> <span rel="sioc:has_creator" class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/user/8" lang="" about="/user/8" typeof="schema:Person" property="schema:name" datatype="" class="username">ZL4JY</a></span> <span property="dc:date dc:created" datatype="xsd:dateTime" class="field field--name-created field--type-created field--label-hidden">Sun, 05/17/2015 - 19:03</span> <div class="field field--name-taxonomy-vocabulary-1 field--type-entity-reference field--label-above field--entity-reference-target-type-taxonomy-term clearfix"> <div class="field__label">WVHFG Categories</div> <div class="field__items"> <div class="field__item"><a href="/categories/arec" hreflang="en">AREC</a></div> <div class="field__item"><a href="/categories/news" hreflang="en">News</a></div> </div> </div> <div property="content:encoded" class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>Two news items this month worth sharing.  The first is a great story that appeared in The Dominion Post and available here:</p> <p><a href="http://www.stuff.co.nz/dominion-post/68482763/the-unsung-heroes-behind-successful-wellington-and-wairarapa-search-and-rescue-missions.html">http://www.stuff.co.nz/dominion-post/68482763/the-unsung-heroes-behind-successful-wellington-and-wairarapa-search-and-rescue-missions.html</a></p> <p>The story highlighted the often unsung volunteer contribution made to search and rescue by LandSAR and AREC with reference to a couple of recent searches here in the Wellington Police district.  The story is particularly noteworthy because it points out that Police tend to get the credit for searches rather than civilian volunteers quoting Senior Constable Tony Matheson from Wairarapa Police.</p> <p>The second story is on the AREC.today web site here:</p> <p><a href="http://arec.today/2015/05/17/locating-the-wanderer-with-nz-developed-tool/">http://arec.today/2015/05/17/locating-the-wanderer-with-nz-developed-tool/</a></p> <p>This story covers work done by Ray ZL2RAY and John ZL2HD through AREC and the Wellington Wanda Search Trust.</p> <p>- John, ZL4JY</p> <p> </p> </div> Sun, 17 May 2015 07:03:14 +0000 ZL4JY 467 at https://vhf.nz Tactical Amateur Radio Digital Internet Solution https://vhf.nz/node/466 <span property="dc:title" class="field field--name-title field--type-string field--label-hidden">Tactical Amateur Radio Digital Internet Solution</span> <span rel="sioc:has_creator" class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/user/8" lang="" about="/user/8" typeof="schema:Person" property="schema:name" datatype="" class="username">ZL4JY</a></span> <span property="dc:date dc:created" datatype="xsd:dateTime" class="field field--name-created field--type-created field--label-hidden">Tue, 04/07/2015 - 05:15</span> <div class="field field--name-taxonomy-vocabulary-1 field--type-entity-reference field--label-above field--entity-reference-target-type-taxonomy-term clearfix"> <div class="field__label">WVHFG Categories</div> <div class="field__items"> <div class="field__item"><a href="/categories/arec" hreflang="en">AREC</a></div> <div class="field__item"><a href="/categories/articles" hreflang="en">Articles</a></div> <div class="field__item"><a href="/categories/projects" hreflang="en">Projects</a></div> </div> </div> <div property="content:encoded" class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p><strong>Using the Spark free WiFi zones for Internet access</strong></p> <p>Need a digital radio hotspot for an AREC operation, a demonstration at a branch meeting, or something like the recent VHF Convention?</p> <p>Telecom, now Spark, operate a network of more than 1,000 WiFi access points conveniently located on many public telephone call boxes around the country.  The commercial terms of the service are essentially free WiFi for Spark on-account mobile customers subject to a 1GB limit per day for up to five devices per account.</p> <p>At VHF Convention this year we needed a good internet connection for demonstrations of DMR and P25 STSP repeaters connected to their respective DMR MARC and Quantar Site Connect international networks.</p> <p><img alt="" data-entity-type="" data-entity-uuid="" src="/sites/default/files/DMR%20P25.jpg" /></p> <p>The connection method described here would also work for a D-STAR™ hotspot (D-STAR is a registered trademark of Icom Incorporated).  We explored various options for Internet access including a 4G cellular, an unlicensed 5.8GHz spur from the local Branch 69 DMR repeater site, or an unlicensed hop from my own QTH, but the phone box connection quickly presented itself as the ideal solution.</p> <p>I’m calling this the tactical amateur radio digital internet solution or TARDIS for short.</p> <p>Making an Internet connection to a public WiFi access point is easy, you just fire up your laptop or tablet and connect right?  While it is easy to connect mobile devices to a WiFi access points it turns out to be a bit harder to find a decent standalone WiFi client mode solution for providing Internet access at an RJ45 Ethernet interface.  This mode is not offered on typical domestic WiFi routers although certain WiFi routers can be loaded with the free DD-WRT third party GPL licensed firmware to do this. </p> <p>My preferred approach to unlicensed wireless is the Ubiquiti Networks range of high-end consumer grade hardware and for this job the Bullet M2 was the go to solution.  The M2 was coupled with a 1m x 0.75m 2.4GHz 23dBi grid left over from a past linking project (unlicensed point to point links these days are best done on 5.8GHz because of the high levels of interference present on the 2.4 GHz band).  The antenna was mounted inside beaming out an upper floor window as show in this image from Steve ZL2KG.</p> <p><img alt="" data-entity-type="" data-entity-uuid="" src="/sites/default/files/WCC.jpg" /></p> <p>For VHF Convention 2015 at Waikanae this grid, mounted on a surveyor’s tripod with vice grips, gave an excellent received signal level of -47dBm at the venue over the slightly obstructed path distance of 150m to the Spark public call box on the corner of Ngaio Road and SH1 as shown in this Google Street Veiw image.</p> <p><img alt="" data-entity-type="" data-entity-uuid="" src="/sites/default/files/spark%20wifi_0.jpg" /></p> <p>The next challenge in establishing such a link is managing the connection arrangements put in place by the WiFi access point operator.  The usual drill is connect to the access point and establish your credentials via a web page before being permitted free access.  With Spark this involves entering your mobile number and receiving a code via text on your mobile phone.  The access points tracks who is authenticated via the hardware MAC address of the mobile device’s WiFi chipset.</p> <p>After initial path alignment the Ubiquity M2 was configured to operate only with the SSID of the Spark network.  The router mode of the M2 was used with DHCP and NAT enabled so that multiple LAN clients could receive the client, gateway, and DNS IP addresses via DHCP while the Ubiquiti received a single WAN IP address from Spark.  The web credential authentication process can be done from a LAN client with a browser or the MAC clone feature of the Ubiquiti devices used to copy the MAC address of an already authenticated mobile device.</p> <p>The resulting performance was excellent.  The WiFi over-the-air speed was 65Mbps while the measured Internet throughput was about 20Mbps down and 10Mbps up.  The round trip ping stability in milliseconds from the ZL4DMR DMR STSP repeater working throught the TARDIS is shown in this graph captured from the ZL-TRBO DMR network bridge, horizontal axis divisions are hours.</p> <p><img alt="" data-entity-type="" data-entity-uuid="" src="/sites/default/files/rount%20trip_0.jpg" /></p> <p>Special thanks to Jeff ZL2JG, Jeff ZL4JS, and Steve ZL2KG for their practical help with this project.</p> <p>- John, ZL4JY</p> </div> Mon, 06 Apr 2015 17:15:54 +0000 ZL4JY 466 at https://vhf.nz AREC websites https://vhf.nz/node/458 <span property="dc:title" class="field field--name-title field--type-string field--label-hidden">AREC websites</span> <span rel="sioc:has_creator" class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/user/8" lang="" about="/user/8" typeof="schema:Person" property="schema:name" datatype="" class="username">ZL4JY</a></span> <span property="dc:date dc:created" datatype="xsd:dateTime" class="field field--name-created field--type-created field--label-hidden">Tue, 12/16/2014 - 18:41</span> <div class="field field--name-taxonomy-vocabulary-1 field--type-entity-reference field--label-above field--entity-reference-target-type-taxonomy-term clearfix"> <div class="field__label">WVHFG Categories</div> <div class="field__items"> <div class="field__item"><a href="/categories/arec" hreflang="en">AREC</a></div> </div> </div> <div property="content:encoded" class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>AREC has a public facing website <a href="http://arec.today">AREC Today </a>with general interest stories designed to inform non-amateurs about AREC and what we do.  It's also designed to highlight interesting material for key stakeholders, such as the AREC SLA partners including the Rescue Coordination Centre <a href="http://www.maritimenz.govt.nz/About-us/RCCNZ-profile.asp">RCCNZ</a>, <a href="http://www.police.govt.nz/about-us/structure/teams-units/search-rescue">Police</a>, and <a href="http://nzsar.org.nz">NZ SAR</a>. </p> <p>As well as the catchy <a href="http://arec.today">arec.today </a>web address the site also can be reached at the traditional <a href="http://arec.org.nz/">http://www.arec.org.nz</a> address. </p> <p>AREC has also just started a resource website <a href="http://arec.info">AREC info</a> to hold technical information relating to AREC. </p> <p>Finally section leaders use <a href="http://arec.gen.nz">http://arec.gen.nz</a> to log activity reports that are essential to annual reports submitted to NZSAR.</p> <p>I would appreciate any comments or suggestions on these sites.</p> <p>John ZL4JY</p> </div> Tue, 16 Dec 2014 05:41:00 +0000 ZL4JY 458 at https://vhf.nz AREC AGM Report https://vhf.nz/node/455 <span property="dc:title" class="field field--name-title field--type-string field--label-hidden">AREC AGM Report</span> <span rel="sioc:has_creator" class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/user/8" lang="" about="/user/8" typeof="schema:Person" property="schema:name" datatype="" class="username">ZL4JY</a></span> <span property="dc:date dc:created" datatype="xsd:dateTime" class="field field--name-created field--type-created field--label-hidden">Sat, 11/22/2014 - 20:13</span> <div class="field field--name-taxonomy-vocabulary-1 field--type-entity-reference field--label-above field--entity-reference-target-type-taxonomy-term clearfix"> <div class="field__label">WVHFG Categories</div> <div class="field__items"> <div class="field__item"><a href="/categories/arec" hreflang="en">AREC</a></div> </div> </div> <div property="content:encoded" class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>The AREC AGM was held on Thursday 30 October.  At the meeting John ZL4JY presented a report on the activity over the past year, summarized below.</p> <p><strong>Introduction</strong></p> <p>Most of the Group's AREC activity is in support of SAR and Police, our contribution is set out below. Members have supported neighbouring branches, including a dedicated AREC evening at Titahi Bay Branch 42.  The Group continues to assist with the Wellington Wander Search supporting Police searching for missing Alzheimer's suffers. </p> <p>In additional to our operational roles two projects this year have been established the AIS project (see below) and an initial roll out of linked digital repeaters to support wide area AREC operations such as experienced during the Christchurch earthquake.</p> <p><strong>SAR Event Log</strong></p> <p>The Group’s AREC section was contacted for a smaller than usual number of incidents over the past year.  The laregest opertion was the May SAREX.</p> <p>Training - Wellington District SAREX 2014 Camp Wainui, Wainuiomata</p> <p>LandSAR, Police, and AREC members gathered at base camp before the midday start of the 12-hour event. AREC team leader John Andrews had written the communications plan, HF tasks and score sheets.  John spoke at the briefing and headed the Incident Management Team (IMT) on the day. Five AREC members in total had worked on the SAREX plan in the months leading up to the exercise. Equipment was set-up on the day included a gruelling half-hour climb in rain to deposit a portable repeater on a hilltop.</p> <p>During the event, the VHF system was in constant use, using the portable hilltop repeater and a DoC fixed repeater. Including the Police channel, AREC ran four VHF channels and monitored the LandSAR HF channels of 3023 and 5680 kHz.  The IMT averaged fifty messages per hour as teams checked into task stations and moved around the exercise area.</p> <p>Our AREC effort received a big thank you from Sergeant Jo Holden, Coordinator Search and Rescue, Wellington District Headquarters.</p> <p><img alt="IMT with John ZL2HD (on radio) and Ray ZL2RAY on the right - images by Nichol Ranger" src="/files/sarex%202014.jpg" /></p> <p><em>IMT with John ZL2HD (on radio) and Ray ZL2RAY on the right - image by Nichol Ranger</em></p> <p>Jo commented “AREC operators John and Ray worked pretty hard to get HF working for the start. They then maintained communications with all teams throughout the exercise without complaint; there were times when not much was happening, but there were also times when all three channels were going at once!  The annual SAREX is an important part of the training calendar, bringing together SAR volunteers and police, to advance specialist skills. The contribution made by AREC is valuable and appreciated,’’</p> <p>Particpating were: John ZL2HD, Ray ZL2RAY, Randal ZL2RJP, Rick ZL2TVY, and Phil ZL2PJG.</p> <p><strong>AREC Projects</strong></p> <p>Marine AIS receiver operational July - The marine AIS (Automatic Identification System) is an automatic tracking technology used by ships to send and receive position reports.  This will be useful for coastal SAR ops.</p> <p>Members gathered all the quipment the section is responsible for and gave it a thorough check-out inlcuding the section's new HF trasnceiver (right foreground), nicely packaged by John Zl2HD.  </p> <p><img alt="equipment review" src="/files/equipment%20%20review.JPG" /></p> <p><em>Equipment check-out August 2014 - image John ZL4JY</em></p> <p><strong>General</strong></p> <p>This year has involved meetings at national SAR level assisting the National Director Jeff Sayer.  I have also been looking after the management of AREC ZK call signs for NZART.  This year I established a web site for AREC nationally <a href="http://arec.today">http://arec.today</a> it is still just getting started but already there are some interesting material on the site.  I have had more overseas travel than usual over the last year and this has reduced the number of Group meetings I've been able to attend.</p> <p>I would like to thank John Zl2HD and Ray ZL2RAY who have carried most of the AREC SAR load this year as well as AREC members from Branches 69, 42, and 50.</p> <p>John Yaldwyn ZL4JY, AREC Section Branch 74 and Area Manager Central District</p> </div> Sat, 22 Nov 2014 07:13:43 +0000 ZL4JY 455 at https://vhf.nz Marine AIS Receiver Operational https://vhf.nz/node/449 <span property="dc:title" class="field field--name-title field--type-string field--label-hidden">Marine AIS Receiver Operational</span> <span rel="sioc:has_creator" class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/user/8" lang="" about="/user/8" typeof="schema:Person" property="schema:name" datatype="" class="username">ZL4JY</a></span> <span property="dc:date dc:created" datatype="xsd:dateTime" class="field field--name-created field--type-created field--label-hidden">Sun, 07/13/2014 - 21:48</span> <div class="field field--name-taxonomy-vocabulary-1 field--type-entity-reference field--label-above field--entity-reference-target-type-taxonomy-term clearfix"> <div class="field__label">WVHFG Categories</div> <div class="field__items"> <div class="field__item"><a href="/categories/arec" hreflang="en">AREC</a></div> <div class="field__item"><a href="/categories/news" hreflang="en">News</a></div> <div class="field__item"><a href="/categories/publicserviceevents" hreflang="en">Public Service Events</a></div> </div> </div> <div property="content:encoded" class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"></div> Sun, 13 Jul 2014 09:48:26 +0000 ZL4JY 449 at https://vhf.nz National AREC Meeting Masterton https://vhf.nz/node/413 <span property="dc:title" class="field field--name-title field--type-string field--label-hidden">National AREC Meeting Masterton</span> <span rel="sioc:has_creator" class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/user/8" lang="" about="/user/8" typeof="schema:Person" property="schema:name" datatype="" class="username">ZL4JY</a></span> <span property="dc:date dc:created" datatype="xsd:dateTime" class="field field--name-created field--type-created field--label-hidden">Fri, 05/31/2013 - 12:21</span> <div class="field field--name-taxonomy-vocabulary-1 field--type-entity-reference field--label-above field--entity-reference-target-type-taxonomy-term clearfix"> <div class="field__label">WVHFG Categories</div> <div class="field__items"> <div class="field__item"><a href="/categories/arec" hreflang="en">AREC</a></div> </div> </div> <div property="content:encoded" class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>The AREC Management Team arrived on site at the Branch 46 Clubrooms shared with SAR in sunny Masterton this morning to find a real SAR operation underway! National Director Jeff Sayer ZL4JS welcomed visitors while managing search comms on a VHF handheld.</p> <p>John ZL4JY Area Manager Central was on hand to represent our interests with area managers from Northern, Southern, and Midlands (ZK1, ZK8, ZK9, and ZK4 call areas). </p> <p>A key outcome of the meeting was the decision to build a web site to improve communications for the increasing range of stakeholders including the public, SAR Secretariat, SLA partners (Police and RCC), NZART Council and members. This has been established at both the <a href="http://AREC.today">http://AREC.today</a> and <a href="http://www.arec.org.nz">http://www.arec.org.nz</a> addresses.</p> </div> Fri, 31 May 2013 00:21:54 +0000 ZL4JY 413 at https://vhf.nz Wellington VHF Group involved in major SAR Exercise https://vhf.nz/node/376 <span class="field field--name-title field--type-string field--label-hidden">Wellington VHF Group involved in major SAR Exercise</span> <span class="field field--name-uid field--type-entity-reference field--label-hidden"><a title="View user profile." href="/user/1" lang="" about="/user/1" typeof="schema:Person" property="schema:name" datatype="" class="username">VHFAdmin</a></span> <span class="field field--name-created field--type-created field--label-hidden">Tue, 05/29/2012 - 17:54</span> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"></div> <div class="field field--name-taxonomy-vocabulary-1 field--type-entity-reference field--label-above field--entity-reference-target-type-taxonomy-term clearfix"> <div class="field__label">WVHFG Categories</div> <div class="field__items"> <div class="field__item"><a href="/categories/arec" hreflang="en">AREC</a></div> <div class="field__item"><a href="/categories/news" hreflang="en">News</a></div> </div> </div> Tue, 29 May 2012 05:54:37 +0000 VHFAdmin 376 at https://vhf.nz