All posts in Uncategorized

Construction Competition 2024

Categories: Uncategorized
Comments Off on Construction Competition 2024

We had some excellent entries for this year’s construction competition. Here are a few photos of the entries. The results will be updated here in due course.

The ‘Go-Pack’ Challenge 2024

Categories: Uncategorized
Comments Off on The ‘Go-Pack’ Challenge 2024

Aim

  • To design and build an innovative “Go Pack” radio system that is portable, independent & self-sufficient.
  • The “Go Pack” could be used to support a local emergency.
  • To demonstrate the “Go Pack” in operation on an agreed day in Summer 2024.

Timing

Design & build to start NOW (Feb 2024) with operational demonstration in July/Aug 2024. (to be agreed)

Rules

RulesNotes
1Go Packs to be carryable, independent, and self-sufficient.Movement of kit from vehicle to demo pitch should be done in one journey if possible.
2Go Packs to be based around ‘bags’ or ‘boxes’.Typically, one or two bags (eg one for the radio + a 2nd for the battery). Add chair & table to complete.
Go Packs may be ‘switch on & go’ in nature or require components to be unpacked & connected.
3Go Packs can be designed & built for use on
any band(s), mode(s), or power.
Go Packs currently in existence are valid.
For demonstration day purposes, RF is restricted to 10 watts IERP (to avoid EMF assessments).
4DC Power to be exclusively from battery, solar, wind, or any mix of these.Petrol/gas generators not permitted.
5The Go Pack could be used in support of a local emergency.How this could be applied to a local emergency is at the discretion of the builder, but operability for 3 to 4 hours might be a worthy consideration.
6The radio equipment must be wholly contained in the Go Pack.No remote operation (eg with home or with a car).
7No use of trees, telegraph or lamp posts, or
buildings. The operator brings their table & chair.
This includes the radio, any accessories, aerial & supports, power source etc.
8No operational use of any vehicle.No vehicle power, no vehicle aerial mounts, no use of an in-vehicle radio.
9No use of local structures for aerial support.No use of trees, telegraph or lamp posts, or buildings. The operator brings their own table & chair.
10Each Go Pack is to be explained via a video or photographic ‘document’ for later use..The ‘document’ for each entry will be presented in the autumn at the Club for others’ appreciation. The ‘document’ could show the pack’s construction or simply explain the finished product.
11The Go Packs will be demonstrated in
operation and explained to members present during an agreed Demo Day.
The Demo is to be convened in a park or similar outdoor open space (to be decided) on a weekend in either July or August 2024 (to be decided).
Depending on location/cost/logistics, a family BBQ may be integrated into the day (to be agreed).
12The Operability of the Go Pack may be demonstrated with a simplex QSO or via a repeater, DMR Gateway, or satellite.The Go Pack could itself be a dedicated repeater – or a beacon. The demo in this case could be linked to it with a handheld.
13Each Go Pack will be ‘judged’ by those members present against the Aims above using criteria determined by each voting member.Each Member present will be given 3 voting slips which they can award in any combination to any Go Pack. Members exhibiting a Go Pack will be given a 4th voting slip. No exhibitor self-voting.
14Votes will be counted at the end of the demo day and 1st, 2nd & 3rd place awards announced.Actual votes cast will not be announced (in case I get none!).
15The top 3 exhibitors will be presented with Certificates recognising their achievements.Certificates will be presented at the Christmas Dinner.

Members’ Construction Competition Rules 2024

Categories: Uncategorized
Comments Off on Members’ Construction Competition Rules 2024
Soldering Iron

We are holding the Construction Competition on March 14th!

The aim of this annual contest is to encourage members to build either radio equipment or ancillary items which enhance their radio operations and to exhibit these to encourage others to follow their example.

Entries can include any radio-related equipment or software, for example, Morse oscillator, test unit, QRP rig, computer/radio interface, PSU, Tx/Rx, linear, antenna, ATU…..

Entries can have been built at any time, but to be accepted as an entry, they must not have been entered in any previous SDARC construction contest.

If YOU have built something that helps you operate, why not enter it?  Remember it is not necessarily the most complex equipment that wins!

Provide sufficient details with your entry to help judges understand the purpose and operation of the entry…. ”Sell” the concept and its usefulness through your description, diagrams, circuits etc!

The contest will have five principal categories:-

Homebrew – This will be for equipment built completely by the club member. (If the equipment is a magazine project with a PCB available, then, the PCB may be used.)

Kit – This will be for equipment built from a kit. The kit should require some soldering to the component level.

Hybrid – This will be for homebrew equipment which also contains one or more kits.

Antenna – This will be for special homebrew antenna systems. For this type of contest entry, the member will just need to provide photographs of the antenna together with a specification, a drawing, and details of the construction. A list of countries worked with the antenna should also be provided.

Software – This category will be for radio-related software. This can be either, a new piece of “stand-alone” software, or a piece written to add extra features to some existing software.

In addition, three Constructor categories may be brought to bear:-

Novice – This will be for those members who have not previously built or exhibited any equipment.

GeneralThis will be for those members who have built and entered previously.

Professional – This may be awarded to experienced constructors whose work is of an exceptional standard.

The number of Awards will reflect the scope of entries and may include awards made to deal with tie-break situations.

The judges’ decisions on all the awards are final.

Please complete an entry form beforehand so you can bring it on the night. You can download the entry form here.

Den’ ACMs Proposal

Categories: Uncategorized
Comments Off on Den’ ACMs Proposal

Den’ ACMs Proposal at Club, 18th January, focused on creating a 2024 Award which required the ‘construction’ and ‘operation’ of a fully portable and structurally independent  “Go Box” or “Go Bag”  based ham station.

Having outlined that we most often operate from either our shack (whether a bench under the stairs or a dedicated ‘funkraum’) or /Portable with the car assisting with power and often aerial support, Den laid down the challenge to use the winter and spring of 2024 to ‘build’ an independent “go box” station which is stand alone and independent in terms of power and aerial support structures. 

The proposal saw the winter ‘construction’ phase culminating in a summer weekend ‘show and demo’ day – a  get-together in a local park – maybe with a wider social (picnic/BBQ) component added in.

To ensure the challenge empowers as many members as possible, the proposed structure would allow members to build an ‘any band, any mode(s), any power, any purpose’ fully portable but independent station and that on the ‘demo day’ all members attending get the chance to be the Judges – evaluating and voting for what they consider to be the ‘best’ station – criteria to be agreed.

Reporting the morning after the Talk,  it was clear that the proposal sparked members’ imaginations and a show of hands after the Talk revealed over half of the 23 members present intended to build and enter for this Award.

After some really broad and useful discussions around rules, boundaries, and assessment criteria, it was agreed to schedule a ’round table’ discussion evening into the Club calendar in a  couple of weeks to agree on the “rules” and enable members to start planning and ‘building’ their chosen “go box” or “go bag” solution.

Our last meeting at Pinetrees before the summer break.

Categories: Uncategorized
Comments Off on Our last meeting at Pinetrees before the summer break.

This week we will be planning for VHF NFD and discussing the new OFCOM consultation.

Please remember we are meeting at Barbury Castle throughout July and August. You’re welcome to bring your radio kit and operate /p.

British Science Week 2023

Categories: Uncategorized
Comments Off on British Science Week 2023

As mentioned at the club, Simon, G4WQG, the RSGB Area 10 Rep. and I attended Swindon UTC to not only represent SDARC, but also the RSGB at the start of British Science Week.

We were demonstrating Amateur Radio and RF communications to the local Swindon University Technical College students and tutors by setting up the Special Event Station, GB2BSW.

We operated both Voice and Data modes whilst talking to the students, many of whom were extremely engaged with what we were doing and plenty of questions being asked.

We used the club Kenwood TS-590S, set to 50w, and a 40m inverted V antenna, made by myself fed with a 1:1 Balun at the centre. The antenna was mounted on a 10m Spiderpole, which wasn’t fully extended and was bungeed to the stair handrail at the back of the college. The antenna performed absolutely brilliantly and tuned perfectly and amazingly across all bands using the TS-590S inbuilt ATU. It provide a 1:1 match across 80m, 40m, 30m, 20m, 17m, 15m 12m, and 10m, which was incredible.

On FT8 we were being heard out in Australia and across to the East coast of America by numerous stations.

We worked 64 QSOs, 23 Countries of which 19 have been confirmed on QRZ so far.
Furthest DX was Japan, JE1NVD on FT8.

We also worked several UK stations on Phone on 40m which the students found particularly interesting.

We had an absolutely fantastic day and were greeted well by the staff, tutors, and students. At the end of the day, we had a discussion about returning and possibly providing some interactive electronic construction during the day. Hopefully will be a good ongoing relationship with the college and inspire some of the local youths.

Dom, 2E0WHQ

Construction Competition 2023 – Winners

Categories: Uncategorized
Comments Off on Construction Competition 2023 – Winners

Congratulations to all the winners of the Construction Competition.

  • 2E0CYS – Peter – Function Generator (KIT)
  • G4OED – Graham – Morse Key (Homebrew)
  • G0EPC – Paul – 9:1 Balun (Antenna)

Paul also brought in a 160M and 2M radio he built many years ago to show.

Worked All Squares (2023)

Categories: Uncategorized
Comments Off on Worked All Squares (2023)

This year’s club competition is about to begin. We will be running two competitions. The first to be released is Worked All Squares.

Work as many LARGE SQUARES as you can during the Award period, to encourage some competitive fun playing radio, to raise the on-air profile of the club, and to reward members making use of their radio gear. A large square is the first four characters of a Maidenhead locator, eg: IO91.

You will need to upload your ADIF log from time to time so that we can process it and update the league tables. We will automatically calculate who is a member from our master list so you don’t need to worry about how you log it.

If you are an SWL and have yet to gain your licence, you can still take part!

For more information visit the dedicated page available within the menu item “Worked All…”

Good luck!

Members’ Construction Competition Rules 2023

Categories: Uncategorized
Comments Off on Members’ Construction Competition Rules 2023
Soldering Iron

We are holding the Construction Competition on March 9th!

The aim of this annual contest is to encourage members to build either radio equipment or ancillary items which enhance their radio operations and to exhibit these to encourage others to follow their example.

Entries can include any radio-related equipment or software, for example, Morse oscillator, test unit, QRP rig, computer/radio interface, PSU, Tx/Rx, linear, antenna, ATU…..

Entries can have been built at any time, but to be accepted as an entry, they must not have been entered in any previous SDARC construction contest.

If YOU have built something that helps you operate, why not enter it?  Remember it is not necessarily the most complex equipment that wins!

Provide sufficient details with your entry to help judges understand the purpose and operation of the entry…. ”Sell” the concept and its usefulness through your description, diagrams, circuits etc!

The contest will have five principal categories:-

Homebrew – This will be for equipment built completely by the club member. (If the equipment is a magazine project with a PCB available, then, the PCB may be used.)

Kit – This will be for equipment built from a kit. The kit should require some soldering to the component level.

Hybrid – This will be for homebrew equipment which also contains one or more kits.

Antenna – This will be for special homebrew antenna systems. For this type of contest entry, the member will just need to provide photographs of the antenna together with a specification, a drawing, and details of the construction. A list of countries worked with the antenna should also be provided.

Software – This category will be for radio-related software. This can be either, a new piece of “stand-alone” software, or a piece written to add extra features to some existing software.

In addition, three Constructor categories may be brought to bear:-

Novice – This will be for those members who have not previously built or exhibited any equipment.

GeneralThis will be for those members who have built and entered previously.

Professional – This may be awarded to experienced constructors whose work is of an exceptional standard.

The number of Awards will reflect the scope of entries and may include awards made to deal with tie-break situations.

The judges’ decisions on all the awards are final.

Please complete an entry form beforehand so you can bring it on the night. You can download the entry form here.