Christchurch Amateur Radio Club
NZART Branch 05 – ZL3AC
The club built a kitset 4 Element 50ohm Yagi with 2.2m Boom.Based on a DK7ZB design https://www.qsl.net/dk7zb/6m/428-breit.htm (bottom of page) Medium bandwidth, high gain design with a gain of 6.8dBd and F/B ratio of lSdB Design will be built with 25mm/lin square boom, with 9.35mm/¾in elements. Elements will have 12.7mm / ½in centre sections for...
We arrived at clubroom at 9am on 9th July 2020. The workshop was flooded again, 2nd time in two weeks. We explored outside, to discover that the problem persists. Previous attempt to move bricks and loosen up the dirt has just ended up with saturated ground, and more flooding. Pick up the phone and call...
HamCram exam on Sunday 14th June. All passed.Tutors, Mike, Steve, Don, Richard, Dave and Cath.
Gilbert ZL3GIL During the lockdown I had time to finish off my BITX20 usb transceiver. This was one of my decade-long projects… I’d bought the pcbs & inductor cans off Sunil Lakhani VU3SUA around the time of the 2010- 2011 earthquakes and a bag of 10MHz crystals for the IF from one of our local...
Antenna replacement with a folded dipole as the main antenna on the pole has been damaged and water is in the coax cable.Steve ZL2UCX and Richard ZL4FZ climbed the tower with the 1st climb last 75 minutes and the 2nd climb lasted 45 minutes. It was cold with a nor-easterly wind and visibility was less...
With the Covid 19 virus lockdown reduced to level 2 that meant that the SOTA programme was back on track & the mountain goats were let out of their enforced confinement. May 16th saw 5 intrepid activators brave the early morning ground fog that lay in patches in the city & climb various summits. Four...
Rob ZL3TCM Here’s an idea I have been using for a while , when my rigs are being used for digital modes I normally remove the mic. I simple dust cap is a cover from a N-Type connector , a normally thrown away item. Recently I printed off a box on my 3D printer for...
Rodents are a problem everywhere in the world. They seek dry warm places like our repeater huts and cause havoc with wiring and the like. To combat this foam was sprayed into the access points for cable at Marley’s Hill repeater hut. Unfortunately this was not successful. They ate thought the foam and still gained...