Shed Workshop Sunday 7 August

Our shed workshop on 7 August 2022 was focussed on the NanoVNA
We met in Bernard ZL2BD's garage at 1 Winsley Tce, Churton Park from 1pm. to 3pm concluding with afternoon tea and savouries. Bernard ZL2BD and Mike ZL1AXG covered off a number of topics including:
- What nano-VNA should I buy?
- What accessories should also be acquired?
- How do you use the nano-VNA to measure antenna characteristics (resonance and SWR)?
- How do I connect the nano-VNA to my computer? Why should I do this?
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Shared lunch on Sunday 19 July
Bring something for sharing with other club members Our mid-winter nosh up was held on Sunday, 19 July 2020, from 12 noon until 2pm. We enjoyed the warm of Bernard's QTH with a smaller group of nine members attending. There was lots of good food and plenty left over and lots of chat. Members of the committee outlined progress in getting the Trading Table under way (including the new section added to the website and production of 15 Magnetic Loop Butterfly Capacitor kits). There was also discussion of the opportunity provided by the Maker Hive at Waitohi (Johnsonville Library) to attract younger members. There was endorsement of the idea of making available simple kitset projects to people interested in electronics. Several members were available to provide guidance to people of any age in using soldering stations at Waitohi. Use of the 3D printers could enhance interest in construction and digital techniques. We also asked questions of George ZL2AG on his employment in the Post Office (and later Telecom) and his long history of involvement in amateur radio and vintage radio. A video recording was made of George's interview, that will be available to members via this website in future. Others…
Branch 50/74 Lunch and Shed Workshop Event
On 1 March from 12 noon -3pm we met over a light lunch at Mike ZL1AXG's QTH. The Branch 50 NZART Committee ordered in a light finger-food lunch (savouries and sandwiches) as we were hosting Branch 74 for a combined branches event. Disappointingly, only two guests showed up ... they were our guest speaker for the workshop, and one Branch 74 member! Mike noted that the year had not got off to a good start with few turning up for the combined branches BBQ organised by Kapiti Branch. It appears many amateurs simply don't want to come out any more to events. However, complacency may well spell the end of amateur radio as we know it. Member attendances at most branches appear to be plummeting, even those that still have 100+ members on their books. Things are getting tougher for ham radio, with suburban QRM often sending the meter over s9 on the low bands, the sunspot cycle likely to be at its worst for some years, and Councils getting tougher in their district plans on amateur antennas (see the recent decision by Kapiti District Council). It is likely that something radical will be required to breathe new life into…
Follow on Magnetic Loops Shed Workshop #4
Bernard ZL2BD hosted another shed workshop on Sunday 5 August 2018 from 1pm -3pm at his QTH. Due to interest in Small Magnetic Loop antennas, this month's workshop was a follow on session to assist those committed to construct a loop antenna. Several people purchased Capacitor Kits to make an air spaced butterfly capacitor. Progress is being made on sourcing LDF4-50 1/2” coax and possibly LDF 5-50 1” coax for the loop material to be made available to those who want this material. It's not too late to order a kit if you haven't done so. Bernard talked about practical matters, such as how to construct the capacitor enclosure and plastic waterpipe housing for the antenna, as well as practical details on putting together the capacitor kit, and selection of motor drivers and gearbox, etc. Mike ZL1AXG talked to a design that provides for real-time tracking and tuning of a magnetic loop. A circuit board is available to purchase from North America. He talked about where to source components including the processor (Teensy 3.2), a 100 step rotation encoder, 51uH twin coil chokes, the stepper motor driver chips, and the stepper motor and gearbox. Bernard provided pre-calculated details for a 2m…
