IRLP Node 6214 on VK5RSB 70cm off air!

The Amateur Radio Experimenters Group are sorry to inform the amateur radio community and the users of the IRLP node 6214, that the node is off air for the immediate short term future.

The IRLP node computer, a Raspberry Pi 1, was a victim of the lightning storm over Adelaide Tuesday evening on the 2nd October.

The QTH from where the equipment operates, was directly under a large lightning bolt, which did not strike the ground or local area. It appears though, that the Electro Magnetic Pulse from the lightning bolt did impact immediately below and caused inducted currents in the LAN Ethernet cables connecting the Raspberry Pi to the QTH computer LAN system and the NBN.

The effect of this induced current on those Ethernet cables, took out the QTH modem and the Ethernet ports on the IRLP Raspberry Pi and the shack computer. All other equipment was or does not appear to have been affected.

A call has gone out for a replacement Raspberry Pi 1 as it would be a drop in replacement. If a Raspberry Pi 1 cannot be obtained then later models can be used but, a new operating system image will need to be built up.

So, until a replacement Raspberry Pi is installed, unfortunately the IRLP node 6214 will be off air.

We will keep you posted when updates are available.

AREG to host an Amateur Radio exam session – Saturday Sept 8th

The Amateur Radio Experimenters Group is arranging for a round of Amateur Radio license examinations to be held at the Fulham Community Centre, Phelps Court, Fulham on Saturday 8th September starting at 9.00am.

For those members (and non members) wishing to upgrade their current Standard or Advanced license, or you wish to sit one of these licenses directly (no need to have passed a lower grade – you can directly sit for any license level in Australia)  we need to know by COB Thursday 16th (this week!) so we can arrange for exam papers to be ordered and have them arrive on time.

Foundation License training and exams will also be held. Registrations also need to be completed before Thursday 16th August. Those wishing to sit the foundation license should obtain a copy of the foundation license manual beforehand if they haven’t already done so, and start studying. Come along to the AREG club meeting this Friday (7.45pm) to discuss how to prepare for the exam with the organizers.

Places are limited (unfortunately) for the Foundation license due to the nature of the training so get in quick. If the course fills up, AREG will plan another exam day later in the year.

Costs to sit the exam will be advised later this week (pending the committee meeting). We look forward to seeing new faces join this amazing hobby.

You can email us to register your interest to vk5arg (at) areg.org.au

August Meeting – Using the Bureau of Meteorology Space Weather Site in Amateur Radio

This month AREG is pleased to present a talk by David Neudegg, Space Weather Physicist with the Bureau of Meteorology, on how Amateur Radio operators can use the resources on the BOM Space Weather website to understand HF propagation.

David will walk the audience through each of the resources and will show how the items available represent what people experience when operating on HF.

There will be plenty of opportunities for questions so come along! Everyone, visitors especially, is always welcome.

The club meets at 7.45pm Friday August 17th at the Fulham Community Centre, Phelps Court, Fulham. Help finding us can be obtained on the Adelaide VK5RSB 70cm repeater on 439.900 (-5MHz + 91.5 CTCSS tone).

IRLP Node 6214 back on air!

The AREG IRLP node 6214 via VK5RSB 70cm is now back on air and available for general use.

The IRLP nodes “new” computer is now a Raspberry Pi 2, with modifications to the IRLP board to allow for operation on 3 volts as is used by the Raspberry Pi.

During both the morning and afternoon drive times, Monday to Friday, the node 6214 will be off line. It is available all the time Saturday and Sundays.

Weekday morning:

  • off at 07:00am
  • on at 09:30am

Weekday afternoon:

  • off at 3:00pm
  • on at 7:00pm

Access for IRLP operation still requires the current issued access code.

(details may be found at  https://www.areg.org.au/activities/irlp-node-6214)

DTMF “0” is the only “free” access to advise the status of the IRLP linking.

I will write up a blog report with photos for the AREG web pages in due course.

Feedback on the IRLP operations is most welcome, might need to make some level adjustments???

Ben VK5BB

AREG IRLP Node 6214 Administrator

APRIL FOOLS: AREG Launches new “World Wide Car Parks” awards program!

Are you an Awards chaser?

An urban worker?

Have a young family that takes up all of your waking weekend hours ?

Do you find you just don’t have the time to go bush or climb
those lofty summits to participate in programs like WWFF or SOTA?

Then this new award is for you!

Many amateur operators today live in situations that prevent them accessing the great outdoors either during the week or the weekend. Perhaps your commute is your only radio activity, or maybe you are lucky and you’re “mobile” whilst at work but only have 2m/70cm FM on board. So much of our lives are spent driving to and from car-parks that there has to be another way to have the same amount of fun as the park and summits activator. So, the “Awards Team” at AREG put their thinking caps on and asked themselves – how can we enhance the amateur radio experience for those who find themselves in such circumstances?

Introducing the World Wide Car Parks Award!

The aim is to contact at least 42 points worth of contacts to qualify the car-park for an award. Points are awarded per contact based on a number of factors outlined in the rules below. The more car parks you qualify multiplied by the sum of all contact points accumulated then contribute to your leader-board score. It is as simple as that!

Once you have made and logged the contacts, you can submit them to our new awards site (details below). Once your contacts are confirmed you will automatically be emailed your award.

The Rules

VALID CONTACTS

  1. you must be located in a car park when making the contact to qualify for the award. Car park in this definition means a formal area/building set aside for parking cars that is not part of a street or road. (I.e. must be in a parking station – street parking is not accepted). There is an exception however to this rule which is if you are on a designated freeway (where parking is not normally permitted) and are moving at less than 5 kilometres/hour (3.1miles/hour).
  2. a contact must use some form of Amateur Radio somewhere in the process of communicating and include an exchange of call-signs, signal reports and car-park identifiers.
  3. a car park identifier will simply consist of the program prefix for your country, the first 4 letters of your grid square and then the street address of the car park. For example, VKCP-PF95-67FranklinStAdelaide+07. (we thought of serialising each car park like they do in WWFF however there are so many that we felt we would never keep up). The last number is important as it is the level of the car park you are operating from and affects the points awarded.

CONTACT POINTS

This is where the challenge lies. How many contacts you need to make to qualify a car park depends on the type of car park you choose and how you make the contact.

4. You get a bonus points for the type of car park and the floor number you operate from. So a contact made from an indoor parking station earns you:

  • Level 5 and above is worth 1 point
  • Level 4 is 2 points
  • Level 3 is 3 points
  • Level 2 is 4 points
  • Level 1 is 5 points (this is the ground floor)
  • 1 level below ground is 10 points
  • 2 levels below ground is 20 points
  • 3 or more levels below ground is 50 points

If you make a contact from an open air ground level car park each contact is only worth 1 point.

Contacts from a freeway moving less than 5km/h (3.1mph) count for 2 points always unless they are in an underground tunnel in which case they are worth 10 points x the length of the tunnel you are travelling through in kilometres.

5. Multipliers are available based on the nature of the contact. Scoring is then calculated based on the number of points total multiplied by the sum of all multipliers.

(a) Simplex contacts are worth 2 multipliers

(b) Use of repeaters, Hotspots, Echo link etc is allowed but do not add any multipliers.

  • in addition, the use of a DMR/Fusion/DSTAR hotspot over cellular provided internet to make the contact will only qualify where the car park in question does not have a cellular in building coverage antenna system inside it.
  • use of EchoLink only qualifies if connected over Cellular Internet and there is no in building cellular antenna system in the car park.

(c) The sum of all DXCC worked per car park can be added as a multiplier. (Note a special talk group on DMR will be established for the awards program plus new Fusion, DSTAR and Echolink conference channels so that the program does not impact day top day repeater operations).

6. Additional multipliers are available for the following activities:

  • Getting Locked in the car park over night – 50 multiplier points
  • Using car park infrastructure as an antenna – 20 multiplier points (Note 1)
  • Operation on MF from an indoor car park – 100 multiplier points (Note 2)
  • Operation on HF and 6m from an indoor car park – 10 multiplier points (Note 3)
  • The following is then a sliding scale as you move up in frequency:
    • 2m = 1 multiplier points
    • 70cm = 3 multipliers points
    • 23cm = 5 multiplier points
    • 13/9 and 6cm = 10 multiplier points
    • 3cm and above = 20 multiplier points
  • Car park to Car park contacts are worth 2 multiplier points

Note 1 – setting off the building fire alarms when transmitting using car park infrastructure will result in a disqualification!
Note 2 – only qualifies if the contact made from levels that are below ground
Note 3 – double points if doing this while driving in the car park and NOT destroying car park lighting infrastructure

AWARD ENDORSEMENTS

7. Special endorsements are available for types of vehicle and transmitted power level as well. These are expected to be sought after additions to your awards certificate.

  • RV and Van category – but only if the applicant has made indoor car park contacts from these vehicles without damaging car park infrastructure. (Indoor Car parks with high clearance are rare hence the value of this endorsement)
  • Motorbike MF category
  • QRP Category – less than 5W
  • Self Powered QRO Category – more than 100W PEP
  • Assisted Power QRO Category – more than 400W PEP – only valid from Tesla charging stations – see notes earlier about the fire systems
  • Hi-Rise Rooftop Parkour assisted Handheld Operation (qualifies for a special Hi-Rise on the Air (HOTA) award endorsement)

LOG SUBMISSION AND CERTIFICATES

To obtain your award, you need to work the required contacts and submit a log to the following web page. https://www.areg.org.au/Logs

If your log is accepted you will be emailed your certificate of achievement!

All logs must be received before April 1st each year in order to be considered for each year’s Honour roll so get cracking and see how many stations you can work!

Good Luck!

TERMS AND CONDITIONS

A. AREG is in no way to be held liable for your actions or behavior in a car park. You are expected to follow the rules of the car park operators at all times and always comply with the directions of security staff. If you have the SWAT team called on you for suspicious activities that is your issue.

B.AREG is not liable for any car parking fees you incur in acquiring contacts for this award. All parking costs are your own responsibility.

C. Self spotting is permitted. The committee is considering a bonus points scheme for the number of social media outlets one individual can find to alert people to their presence. There is a special trophy available if you manage to self spot by calling a commercial radio talk-back show and talking about what you are doing provided you get your operating frequency broadcast over the respective AM or FM station concerned.

D. Disputes with award scoring or validity will only be considered by the AREG committee once a year on April 1st before midday. Disputes must be forwarded to the correct galaxy and be filed in the cabinet at the bottom of the broken stairs in the draw above the one marked beware of the leopard in order for them to be considered by the committee. Don’t forget to take a torch as the light is broken.

Next AREG Meeting: March 23rd – Introducing FT8 Mode

The next meeting of the Amateur Radio Experimenters Group will be held  1 week later than usual this month, on Friday March 23rd. The date has been delayed as the SA State Election is being held on the 17th and the hall is being setup as a polling booth the night before (our usual meeting night).

The presentation for the evening will be “Introducing FT8 Mode, what is all the hype about?” by Grant VK5GR.

Grant has closely followed the development of FT8 since it’s inception and was an early user of it in DXpedition environments during his activation of Niue last year.

Areas to be covered will include:

  • a brief description of the FT8 protocol
  • the basic hardware and software requirements to get on air
  • how to get that little bit more out of FT8 – add on packages like JTAlert
  • a look at FT8 operating practices
  • how to chase rare DX using FT8 – a practical tips guide
  • a discussion about the new Expedition mode that has been developed

Currently a live demonstration is also being planned. Grant will be available for questions after the presentation during supper.


The meeting  will be held at the Fulham Community Centre (previously known as the ReedBeds) with parking accessed from Phelps Court, Fulham. The venue will be open from 7.45pm with the meeting starting at 8.00pm. Following the technical presentation there will also be the usual club business meeting.

Visitors are always welcome! So come along and meet the Amateur Radio Experimenters Group!

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AREG IRLP Node 6214 Off Air

The following news comes from Ben VK5BB, the custodian of the 6214 IRLP node that is connected to the VK5RSB 70cm repeater


Due to a failure of IRLP node 6214’s computer hardware,
it is off line until further notice!

History:

I took on the management of the IRLP node 6214 sometime around 2012. Prior to this it was managed by Adrian VK5ZSN. Under his management it was all OK until the HDD died.

I volunteered to take on the project and rebuilt the computer using an IDE to SATA adapter and a solid state HDD. A bit of jiggling but it worked and to date has been very reliable with minimum of hands on support to keep it on air. 

Current Status:

I am not sure what is going on but it appears that the computer that manages the IRLP node 6214 is having severe problems. It seems that the computer is unstable and keeps shutting itself down and rebooting. The machine running the system is now over 10 years old, which is a contributing factor.


Right now, the ultimate fate of the IRLP node is undecided. The club members have been asked if they wish to see the service continued. That discussion is ongoing. If the service is to continue, it could be some time before it is restored as new hardware will likely need to be obtained.

If you would like to see it rebuilt and placed back on the air, why not consider becoming a member of AREG and showing your support for the project? Details of how to join are available on our membership page .

VK5RWN D-Star repeater site antenna tower replacement.

Back in mid August 2017, the tower supporting the antennas for the VK5RWN D-Star repeater system was damaged during the big blow that accompanied the storms. The tower, which was a section of a Hills Telemast bolted at the roof line of the communications hut, has been in service for about 27 years and was in good order. It appears that the wind loading had been exceeded during the August storms and the tower was bent just above the roof line of the building and the top section with the antennas was approximately 30 degrees off the vertical.

Well, no option, it had to be replaced!

The working bee at the VK5RWN site was scheduled for Tuesday 19 December 2017.

Ben VK5BB was at the site around 0845 hrs local time and the other members of the work crew arrived shortly afterwards.

Apart from initial preparations, and the OH&S site survey, the first job of the day was to erect the scaffolding, on the roof of the building! Gave us very easy access to all antennas for disassembly. The scaffolding was also used for the reassembly, thereby minimising the need to actually climb the tower, though Colin VK5ACE later did, to re-mount the 2m antenna at the top.

From there the antenna equipment was easily removed and the bent tower was cut off just above the bend in the tower (just above the roof line) and the tower easily removed. The coaxes were laid out to one side so as not to be damaged and ready for re-installation.

Whilst the old tower was being removed, other members bolted the new tower sections together ready for erecting. The new tower is two sections of Hills 330mm Butt Section mast, with additional plates fitted at the join of the two sections to provide some additional strength at the join.

The top end of the new tower was lifted (man-handled with ropes) above the adjacent hut and then the base lifted into position near where it was to be mounted. Using the ropes, the tower was then pulled upright, across the gap between the two buildings to its mounting position, loosely bolted in place whilst we marked out where the base bolts were to go, drilled and fitted the Dyna bolts and the tower was firmly bolted in place. Actually went in place quite well with a minimum of jiggling etc!

Lunch time! (about 1300 hrs local)

After lunch, the antenna cross arm and antennas were refitted, thanks to Colin VK5ACE, the main climber/rigger for the day. As the Wi-Fi dishes were refitted, the day started to get a bit blowy but the dishes were pointed approximately in the right directions. The 2m 7 element Yagi for the Broadcast Source transmitter was re-installed as a 3 element Yagi and pointed at Crafers. All coaxes were resealed, dressed and cable tied to the tower.

All antennas are back in their old positions, determined by the lengths of the various coax feeds. The tower, now 9m high, carries a 2m, a 70cm and a 23cm vertical “white stick” collinears, two 200mm Wi-Fi dishes and a 3 element 2m vertical Yagi.

Job done!

All equipment was turned on again and the various systems tested, we even had the Internet back on at the site, so we did get the dish right, either that or it has strong side lobes. (The Internet connection was previously still working even though the dish was pointed at the sky? A relay from the ISS??)

Clean up, and we were gone by 1700 hrs local.

The D-Star operations were checked at the site and later again from Ben’s QTH and all was good, including remote access to both the D-Star and the Broadcast computers.

Crew on site;

  • Trevor, VK5ATQ, roustabout and also supplied the scaffolding, (NERC member)
  • Rod, VK5ZRK, roustabout, (NERC member)
  • David, VK5MDF, roustabout, (NERC member)
  • Colin, VK5ACE, rigger, (AREG member)
  • Jeff, VK5IU, “supervisor” and roustabout, (AREG member)
  • Ben, VK5BB, project manager, 2nd climber/rigger, (AREG member)

Many thanks to the crew who helped during the day and especially Olga VK5FOLG, as she supplied a fresh cut lunch for all and delivered on site about 10 minutes before the lunch break.

Reports from the D-STAR users have reported a significant improvement of signal strengths at Balaclava and Mt Barker on 2m and from Hallet Cove on 70cm, so all appears to be good again.

Next task for the VK5RWN D-STAR system is the upgrade of the computer to a new 64bit system running CentOS 7 64 bit and the new G3 gateway software. This is scheduled for early in 2018.