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Post Author Forum Replies Views Posted [asc]
    Thread: UPS with no RF noise?
Post: RE: UPS with no RF noise?

I used one of these on the output of a noisy inverter generator. The noise was being radiated by the extension lead plugged into the generator.I put it in a diecast box with a mains outlet socket and ...
VK5ZD EMC, Interference 10 8,020 26-05-2022, 10:15 AM
    Thread: New to this forum.
Post: RE: New to this forum.

The only repeater in Moonta is on 70cm. The nearest 2m repeater is VK5RLH at Bumbunga Hill which should be accessible from Moonta.
VK5ZD General Discussion 13 2,382 20-12-2021, 08:19 AM
    Thread: New to this forum.
Post: RE: New to this forum.

I've got an old Philips FM92 programmed with 90 repeater and simplex channels on 2m. You're quite welcome to have it if you can arrange to collect it (from Munno Para West). No warranty but it's curr...
VK5ZD General Discussion 13 2,382 15-12-2021, 11:54 AM
    Thread: New to this forum.
Post: RE: New to this forum.

Hi Jon I'd suggest getting a radio that does HF plus 6m/2m/70cm. This will give you the most 'bang for your buck'. Keep an eye on the second hand market for a FT-897D or IC706Mk2G (e.g. this forum,...
VK5ZD General Discussion 13 2,382 15-12-2021, 09:12 AM
    Thread: Aust 2x1 callsigns now available 13Oct21
Post: RE: Aust 2x1 callsigns now available 13Oct21

Only 2 left in VK3! VK4ADC Wrote: (10-11-2021, 03:53 PM) -- A list of 2x1 calls was published on the AMC web site a few days back :   https://www.amc.edu.au/__data/assets/pdf_file/0003/1549821/2x...
VK5ZD Regulatory, Licencing & Exams 5 26,383 12-11-2021, 07:32 AM
    Thread: Aust 2x1 callsigns now available 13Oct21
Post: RE: Aust 2x1 callsigns now available 13Oct21

Just took a quick count of the 2x1 callsigns: Area  Taken  Remaining VK1     7       71 VK2    41       37 VK3    58       20 VK4    27       51 VK5    23       55 VK6    14       64 VK7    ...
VK5ZD Regulatory, Licencing & Exams 5 26,383 17-10-2021, 08:54 AM
    Thread: Announcement of the NanoDragon satellite
Post: RE: Announcement of the NanoDragon satellite

Launch has been delayed: https://www.sggpnews.org.vn/science_technology/launch-of-nanodragon-satellites-suspended-due-to-ground-radar-issue-95045.html (https://www.sggpnews.org.vn/science_technology/l...
VK5ZD Satellites & Balloons 1 820 03-10-2021, 08:40 AM
    Thread: We Made It (Finally)
Post: RE: We Made It (Finally)

VK5PJ Wrote: (15-08-2021, 08:37 PM) -- my home QTH is here: -34.56122937536208, 139.04274287034454 or PF95mk55 -- To the nearest 10 nanometres... Can't you be more precise?  :D :D :D
VK5ZD Off Topic! 21 11,188 18-08-2021, 09:48 AM
    Thread: Shielded Ethernet cable?
Post: RE: Shielded Ethernet cable?

Note that 10MBits produces a lot less RF noise than 100MBits.
VK5ZD EMC, Interference 9 2,418 22-06-2020, 10:03 AM
    Thread: ACOM-1500 & ANTENNA TUNER?
Post: RE: ACOM-1500 & ANTENNA TUNER?

The circuit (in the manual - available online) shows the input connected to the antenna 1 output when the power is off.
VK5ZD Transceivers, Transmitters & Receivers 6 2,467 23-04-2020, 10:22 AM
    Thread: ACOM-1500 & ANTENNA TUNER?
Post: RE: ACOM-1500 & ANTENNA TUNER?

When the ACOM is either off or in standby mode the transceiver is connected directly to the antenna. Go with Doug's suggestion; put the ATU between the transceiver and the ACOM.
VK5ZD Transceivers, Transmitters & Receivers 6 2,467 19-04-2020, 07:58 AM
    Thread: WIA POLL NUMBER 1: FOUNDATION CALLSIGN STRUCTURE
Post: RE: WIA POLL NUMBER 1: FOUNDATION CALLSIGN STRUCTU...

Anyone can vote, not just WIA members. If you're not a WIA member you can register to vote here: http://poll.wia.org.au/ (http://poll.wia.org.au/)
VK5ZD W.I.A. / ITU / IARU 22 3,703 19-02-2020, 02:50 PM
    Thread: New 122GHz World Record
Post: New 122GHz World Record

From Mike, K6ML... New world record: 139 km on 122 GHz 17 Feb 2020: QSOs between Mike, K6ML, on Mt Vaca (CM88WJ75ON, 835m ASL) and Oliver, KB6BA, (at 1225) & Jim, N9JIM, (at 1250), both on Mt ...
VK5ZD 1296MHz, Microwave & Opto 0 1,354 19-02-2020, 02:43 PM
    Thread: Hey whats that
Post: RE: Hey whats that

Been using it for years. Very useful. If you set the refraction parameter to 0.3 the profile will match the RF path. You can also save the URL shown at the top left (under the name you've given the s...
VK5ZD General Discussion 3 1,900 07-11-2019, 09:13 AM
    Thread: Anyone tried the new exam system yet?
Post: RE: Anyone tried the new exam system yet?

I had a slightly faster turnaround than VK4MST, about 3 weeks. Sitting exam to AMC issuing AOCP - 9 days AMC sending application to ACMA and ACMA acknowledging receipt - same day ACMA receiving a...
VK3FDLL Regulatory, Licencing & Exams 23 5,448 15-10-2019, 04:40 PM
    Thread: 122GHz for all !
Post: RE: 122GHz for all !

Hi Tim, How do I go about ordering a populated board, feedhorn and coupler? Regards, Nic VK2KXN / VK5ZAT
VK2KXN 1296MHz, Microwave & Opto 6 2,611 14-10-2019, 10:46 AM
    Thread: Proposed changes to amateur licence conditions
Post: RE: Proposed changes to amateur licence conditions

VK4WDM Wrote: (27-09-2019, 01:05 PM) -- I don't see anything about getting rid of the four-letter suffix which is going stop the use of digital modes anyway. -- The LCD (or the Act) doesn't specify...
VK5ZD Regulatory, Licencing & Exams 23 5,661 28-09-2019, 09:45 AM
    Thread: USA Exams System Endorsed by ACMA
Post: RE: USA Exams System Endorsed by ACMA

And the AMC fee for processing Recognition of Prior Learning is more than that for taking the exam ($99 v $90).
VK5ZD Regulatory, Licencing & Exams 2 1,773 26-09-2019, 08:33 AM
    Thread: France proposes 144-146 MHz for Aeronautical Mobile Service
Post: RE: France proposes 144-146 MHz for Aeronautical M...

Good news and shows that when hostile moves are made to Amateur Radio how important it is to be vigilant. Had the removal of the lower part of 2M gone ahead who knows what else may have been next....
VK2WP General Discussion 10 2,736 01-09-2019, 07:33 AM
    Thread: 2.4 GHz contact in Southern Tasmania over mountains
Post: RE: 2.4 GHz contact in Southern Tasmania over moun...

VK7HH Wrote: -- More testing on 3.4 GHz using a WA5VJB PCB antenna as a grid feed https://www.youtube.com/watch?v=mSUfKTdSwM4 -- Hayden, There are few tests you can do. (1) rotate the antenn...
VK3QI 1296MHz, Microwave & Opto 5 2,227 28-08-2019, 11:12 PM
    Thread: Max continuous power FT817ND
Post: RE: Max continuous power FT817ND

25 watts AM = 100 watts PEP at 100% modulation. i.e. same PEP.
VK5ZD Transceivers, Transmitters & Receivers 11 3,233 04-08-2019, 12:57 AM
    Thread: Anyone tried the new exam system yet?
Post: RE: Anyone tried the new exam system yet?

I believe it's $90 per exam session (i.e. if you do the theory and practical at the same time). The Foundation, Standard and Advanced exams include the regulations. I suspect the separate regulations...
VK5ZD Regulatory, Licencing & Exams 23 5,448 01-08-2019, 04:51 PM
    Thread: Beacon monitoring
Post: RE: Beacon monitoring

See https://physics.princeton.edu/pulsar/K1JT/wspr.html (https://physics.princeton.edu/pulsar/K1JT/wspr.html) and http://wsprnet.org/drupal/wsprnet/spots (http://wsprnet.org/drupal/wsprnet/spots)
VK5ZD General Discussion 3 1,402 26-06-2019, 01:27 AM
    Thread: France proposes 144-146 MHz for Aeronautical Mobile Service
Post: RE: France proposes 144-146 MHz for Aeronautical M...

The proposal continues to move forward: https://www.iaru-r1.org/index.php/174-news/latest-news/1868-wrc23-agenda-items-update-from-cept-2
VK2WP General Discussion 10 2,736 22-06-2019, 08:56 AM
    Thread: 2019 Winter VHF/UHF Field Day - 22nd / 23rd June
Post: RE: 2019 Winter VHF/UHF Field Day - 22nd / 23rd Ju...

Greetings to all readers! This week-end, weather permitting, I plan to be operating on the Saturday evening from Mt Gravatt in Brisbane (QG62MK) for a couple or three hours starting around 6 p.m., ...
VK4OE Contests, Field Days, Portable Operation, JOTA, SOTA 7 2,211 20-06-2019, 08:15 PM