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7 November Shed Meeting

Our monthly shed meeting was held at Mike ZL1AXG’s QTH in Churton Park on Sunday 7 November. Two topics were covered:

  1. Receive magnetic loops
  2. Part 3 of the Simple SSB Transceiver series: Band pass and Low pass filters (Mike ZL1AXG)

Bernard ZL2BD gave an update on experiments with receive only magnetic loop antennas including the differences between tuned and untuned loops (See the attached paper) and Mike ZL1AXG talked about his recently acquired MLA30+ Rx loop that can be used in conjunction with the portable Tecsun PL-330 receiver.

Mike ZL1AXG also gave his third talk on the Simple SSB TXCVR. The talk covered construction and testing of band pass filters and low pass filters (See attached powerpoint presentation for more details).

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ZL2BD HF Active RX Loop Project 2021

1 file(s) 1.63 MB
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ZL2BD HF Active RX Loop Project 2021

1 file(s) 1.43 MB
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ZL1AXG - Part 3 of Simple SSB Txcvr - LPF and BPF

1 file(s) 3.47 MB
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October Branch meeting: Blackwood Cup

Our October Branch meeting was held on Tuesday 19 October from 1pm at The Collective Community Hub,  1/33 Johnsonville Rd. We normally meet on a Sunday, but we needed to find a venue that would allow the appropriate physical distancing. A Tuesday slot was available in the larger space at The Collective Community Hub.

The meeting featured our annual competition for the Blackwood Cup. There were only two entrants this year, a QRP magnetic loop controller (entered by John ZL2JPM) and the simplest possible morse code practice device (entered by George ZL2AG). John took out the prize for the second year running. Congratulations!

In addition Mike ZL1AXG gave a presentation on “Selecting a portable shortwave receiver” and demonstrated his recent purchase of a Tecsun PL-330 receiver.

Tea, coffee and biscuits were available as usual following the meeting.

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Choosing a portable HF receiver (PL-330)

1 file(s) 2.83 MB
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POSTPONED Branch meeting September 2021 – Colonial Knob Mesh Upgrade and Update

The view to the North from Colonial Knob

We are still at Covid Alert Level 2. Wellington City venues are not available for use, and to host at a member’s home would be challenging under existing requirements. Therefore, the Committee has decided to postpone the meeting. The Committee will review options on 23rd September.

At this meeting Ted ZL2TB and John ZL2XJ will give a presentation on the Colonial Knob high speed broadband node upgrade.  This is our most complex node in the network, with links northward to Mt Field and  Titahi Bay, to the East – in future to Mt Climie, and to the South the node connects to our Johnsonville node with a link onward to Ngaio.

This will be a chance to have a refresh on the possibilities of the high speed broadband network and see how our upgrade has benefited the mesh network.

Tea and coffee will be available after the meeting in the cafe upstairs, courtesy of the club.  All welcome!