Posts

Naracoorte repeater fix

The repeater problem has been tracked down. Would never have found it on site. We won’t mention how many hours this has taken.

Solution – the audio input transformer had been burnt out. Originally I thought it had just failed but on replacing the transformer the next one also died. The problem was a blob of solder on the socket for the exciter that was shorting the +12V supply to a bridge connection for the input of the audio. Unfortunately it was intermittent. After putting a third transformer in (supplies getting thin) and resoldering the joint to get rid of the surplus solder there was no longer 12V finding its way onto the audio transformer and burning it out

I have rechecked all levels and adjusted powers on the units. It now requires another trip to Naracoorte to re-install the device.

Defunct transformers shown on top of the exciter. The wire is VERY light gauge
The problem socket. +13V red connector above and immediately below the centre tap of the transformer

Map of area around clubrooms

You’ll note that the map is missing. I’ve been experimenting so that it would become interactive. Unfortunately Google now charges for use of an interactive map although the first $200 worth is free.

I’m looking into it but reluctant to put my credit card to the test. I’m looking at alternatives but as we all know the Google Maps is the best.

Hang in there I’ll see what I can do over the next few weeks. I’m a beginner at WordPress.

John

Rex VK7MO Testing Out IC-9700

Hello and welcome in this post we have Rex VK7MO talks us through the frequency stability issues with the new Icom IC9700 radio and how to go about resolving this issue.


Icom IC-9700 frequency stable? – Tested by Rex VK7MO

A disclaimer about this video:

All tests are easily reproducible with appropriate test gear – This is the 2nd IC-9700 that has been supplied to Rex – All “drift” is still within stability specs of the radio over a 10 degree temperature range (although the spec is over a 70 degree range) – The IC-9700 is a fantastic radio and a great step forward for VHF/UHF enthusiasts – this video is not bagging the radio. The purpose of these tests is to show the real world results and to show that Icom has perhaps missed the mark with not implementing a full 10MHz locked solution for this radio for the purposes of particular digital modes and/or for perhaps driving microwave transverters.


Icom IC 9700 GPS LOCKED! Weak signal review by Rex VK7MO ✅

Yes the Icom IC 9700 has been GPS locked! How? Well Rex VK7MO brings us up to speed on developments, explains the features he enjoys most out of this new radio and the benefits for those wanting to use this rig on Earth-Moon-Earth (EME) moonbounce or other weaker signal digital modes.

Thanks to Rex VK7MO, Hayden VK7HH and Ham Radio DX for providing the videos and hope all you amateur radio viewers welcomed and enjoyed this information.

Cheers and 73’s from Tom VK5NFT

IC-9700 Review and Smackdown vs the IC-910H

Sorry for those that are not ICOM Radio enthusiasts we will bring you blogs on the new Yaseu and Kenwood Radios soon.

There has been some much talk about the new Icom IC-9700 I thought I would post this for you. For anyone wanting to find out more on the new Icom IC-9700 please click onto the you-tube video below. I hope you enjoy and once again thank you to Icom America Inc. for providing this video.


Cheers and 73’s Tom VK5NFT

Dayton Ham Convention 2019 17th to 19th of May

Hello from Eric KJ4YZI reporting from Dayton Ham fest with some interesting new Ham gear for us all. Attached a few new items that us hams might be interested in and were not able to make this Ham Fest.

NEW WINDOWS TRANSCEIVER
NEW STATION REMOTE SERVER
HF CLOCK / SAT TRACKER / SOLAR INDEX DISPLAY

Once again thanks to Eric KJ4YZI for his informative information and update on some new ham gear whats available hope you enjoyed just some of the highlights from this three day ham fest.

Cheers and 73’s Tom VK5NFT

Activities late April early May

The Heywood Rally will require us on Saturday 27th April only. It’s an early start at 7:00AM. Peter VK5BE is managing this event.

Communication will be via the Portable repeater which operates on the Willalooka frequency 147.350 (your receiver) and 147.950 (your transmitter). Peter and Colin will have checked out communications the week before (20/4/19) and it is expected that the repeater will cover the required area.

The repeater has a 1 second tail but no beep. It has a 10 minute timeout.

The repeater is running on two antennas – both folded dipoles with the receiver on top so it’s expected that a handheld should get in okay.

The Generations in Jazz event is on from 3,4,5 May. Andrew VK5KET is managing this event. Volunteer times to be advised.

The portable repeater is being placed approximately 1km from the Generations in Jazz site and will provide rock crushing signals to the area. Again the frequencies are 147.350 (listen) and 147.950 (transmit).

Well now you want to Setup a Hotspot ?

Well now you know all about D-Star, DMR, C4FM, Reflectors and talk groups and you want to go about setting up your own hotspot. So you to can be able to access these various talk groups with ease for yourself. Well please enjoy the following you-tube video once again presented by Eric KJ4YZI where he shows you what you need to get started and how configure the the device and get you on the air using it.

Thanks again to Eric KJ4YZI from HamRadioConcepts


Cheers and 73’s from Tom VK5NFT

DStar/DMR/C4FM, What Are Reflectors And Talkgroups

Ever wanted to know what they mean by a reflector?, What is a talkgroup?, Dstar or C4FM when it comes to Amateur Radio.
These words are always flying around, and a lot of people have no idea what they are. Hopefully in this video presentation it will help you to understand the very basics and explain to the terminology and how it all works. Hope you enjoy and get something out of this video.

Once again thanks to Eric KJ4YZI for his youtube presentation and explanation into DStar/DMR/C4FM, What Are Reflectors And Talkgroups

Cheers and 73’s from Tom VK5NFT

Amateur radio – a 21st Century hobby

Whether you enjoy writing software, getting hands-on with practical equipment, developing new technology or simply want to use what’s already there to communicate with others across the world, you’ll find all of this – and more – within amateur radio. It is also great fun.

21st Century Hobby for all

Why not try it, click onto to the link below to go to WIA and find a Amateur Radio Club under Radio Clubs and hopefully their is one near you. https://www.wia.org.au/

Cheers and 73’s from Tom VK5NFT

Did I hear you say CB RADIO?

I started originally from the old days on 11 metres, known as the CB Radio Band, I know quite a lot of Amateurs of today started there too.  Well I found this video on the net and guess what, it’s all about CB Radios and probably a lot of us out there can relate to this video. Why did I put this on the listing to view, well anyone coming to our website and who doesn’t have a amateur licence could use this as a stepping stone into the hobby. I hope we can use this as an introduction from CB Radio towards Amateur Radio.

I hope you enjoy this video as there is some good reference material towards amateur radio.

If you are interested in getting a Amateur Radio Licence then click the link below:

http://www.wia.org.au/clubs/vk5/SouthEastRadioGroup/