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How to simplify logging?
Forum: Digital Modes
Last Post: VK2CSW
Yesterday, 05:47 PM
» Replies: 3
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7285kHz AM?
Forum: Off Topic!
Last Post: VK3RX
25-04-2024, 01:16 PM
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VK3XPD 23cm 65W modules
Forum: 1296MHz, Microwave & Opto
Last Post: VK2AZ
22-04-2024, 09:34 PM
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Dud Headphone Jack on Yae...
Forum: Transceivers, Transmitters & Receivers
Last Post: VK2CSW
20-04-2024, 07:53 AM
» Replies: 1
» Views: 409
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23-on-23: Tuesday April 2...
Forum: 1296MHz, Microwave & Opto
Last Post: VK4CZ
19-04-2024, 01:22 PM
» Replies: 0
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Audio Clipping on Sideban...
Forum: LF, HF, MF
Last Post: VK2CSW
17-04-2024, 08:27 PM
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FTDX101D & SCU17 ?
Forum: General Discussion
Last Post: VK4TS
16-04-2024, 10:50 AM
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Wiring a microphone for h...
Forum: Homebrew
Last Post: VK2CSW
15-04-2024, 07:47 PM
» Replies: 7
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Dipole for 6m
Forum: 50MHz
Last Post: VK2CSW
15-04-2024, 07:10 PM
» Replies: 6
» Views: 1,710
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Toroid Supplier/s
Forum: Ancillary, Test Equipment, Components & Parts
Last Post: VK2CSW
11-04-2024, 06:26 PM
» Replies: 3
» Views: 1,222
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Moon Orbiter |
Posted by: VK2FAK - 11-10-2018, 06:54 AM - Forum: Satellites & Balloons
- Replies (6)
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Hi all,
Has anyone made an attempt to receive the images sent down by the Orbiter of the moon and earth in the same pic..
John
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Using FT-857 or 897 with transverters |
Posted by: VK7HH - 04-10-2018, 12:25 PM - Forum: Transceivers, Transmitters & Receivers
- Replies (2)
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Hi All,
I'm after anyones experiences with using a FT-857 or 897 with transverters.
I've been led to believe that these rigs in particular have high RF power spikes on transmit, even when the power level is set to minimum, which, I'm afraid of blowing up my transverter I have coming.
Transverter will be a SG Labs 1296 one. From a few other posts I have read, nobody has reported any issues, but I wanted to double check with anyone on the forum who may have had issues?
857 is actually the rig I will be using in a remote configuration, so I will have a coax relay switching RF from the 2m output of the radio between a 2m amplifier and the IF input of the transverter with power being set on the radio to 5W maximum.
Regards
Hayden VK7HH
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Solar Inverter Interference |
Posted by: VK4CV - 03-10-2018, 12:47 PM - Forum: EMC, Interference
- Replies (7)
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Just joined this site a couple of days ago so this is my first post here.
A few years back I first noticed quite strong garbage around S7 to S8 all over the HF spectrum and it even extended up to 50MHz where I could detect
a few weak birdies there as well. So, using my five element beam for six metres, I determined that it appeared to peak to the north west of my house.
A very important point I observed was that as soon as the sun set the garbage would all disappear, and it would also drop to a very low level (around S1)
when a very dark cloud blocked out the sun during the day. So, I reckoned that this problem had to be caused by some device that was solar powered.
A dirty high powered solar inverter in a house close to me would be a very likely suspect.
I tried walking around the neighbourhood with a portable broadcast receiver (all I had) to see if I could locate the source. I couldn’t find any definite
source, so I thought it might be best to approach the ACMA and see if they could figure out where it was coming from. My first response went like this:
“Thank you for your email relating to interference to your amateur equipment. We are unable to resource an investigation into this matter at this time. HF Amateur
Radio systems in suburban areas are more susceptible to interference due to the size of antennas and extra sensitive equipment and can be difficult to resolve.”
That response looked like I was not going to get any help from them so I then wrote to the minister for communications via my local member Peter Dutton.
This time I got something back that was a little more encouraging:
"Mr Cooper was advised that in the first instance he should attempt to locate the interference and then try and resolve the matter cooperatively with his neighbours."
So I drafted up a polite explanation letter about the problem and dropped copies in several letter boxes around the area where I believed the problem
was originating from asking to do a test. I got no co-operation from any of them even after visiting most of them in person a few weeks later! Then
it was time to get onto the ACMA again. This time I finally managed to get an officer from the Brisbane office to come out and look into the problem.
That was in early August 18, and so far no culprit has been located. One neighbour did get around to doing a test with me but his inverter was cleared.
The others are still refusing to do a test! I’m sure the ACMA can force co-operation if they want to.
Has anyone had any experience with this type of problem and can offer any advise on how to track down a dirty inverter. Perhaps someone who has
had plenty of experience in doing “Fox Hunts” might be good at tracking down this culprit. If it’s not a dirty solar inverter, what else could it be? Sorry
about the long post, but as you can see, my interference problem has become difficult to resolve mainly because of lack of co-operation all round!
Nev VK4CV
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Lutron LC-6043 LC meter instructions |
Posted by: VK4WDM - 01-10-2018, 05:10 PM - Forum: Wanted
- No Replies
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I need a copy of the instructions for this instrument. Looked on web and only found info on later models. Happy to refund photocopy and postage costs.
73
Wayne VK4WDM
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40M radar interference |
Posted by: VK2WP - 30-09-2018, 07:38 PM - Forum: EMC, Interference
- Replies (11)
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Presume its radar a loud harsh stacatto buzzing on 40M. Seems to be more or less centered on 7027KHz, down to about 7007KHz and upto about 7047KHz.
Starts around 4.00pm EST and have heard it till about 8.00am EST.
Very strong s9+ here in Bathurst.
Anyone else getting plastered by this or is it just me ?
Regards, Wal VK2WP
P.S time of writing this about 7.35pm and really strong
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2018 JOTA |
Posted by: VK4ADC - 30-09-2018, 03:43 PM - Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
- Replies (3)
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From text edition for SEP 30 2018 - VK NATIONAL NEWS BROADCAST ON VK1WIA : http://www.wia.org.au/members/broadcast/wianews/
Also in MP3 edition of news available at: http://www.wia-files.com/podcast/wianews-2018-09-30.mp3
Jamboree On The Air - October 2018
With just a month to go before JOTA 2018 planning should be well underway for your Jamboree On The Air radio station. As Australia will be one of the first countries to start the JOTA weekend, making contacts with other JOTA radio stations within Australia would give guide and scout youth members a great start to their JOTA weekend experience.
To assist radio operators in making contact with other JOTA Radio stations The St George Amateur Radio Society has setup a database where you can register details of your JOTA radio station such as callsign, location, bands and frequencies, operating times and contact details. The information collected on the database will only be shared with other users.
Please consider registering your JOTA station at www.jota.sgars.org and follow the menu link.
For more information email jota@sgars.org
(Paul VK2GX, JOTA coordinator for The St George Amateur Radio Society)
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VK5 Microwave Activity Day Sunday 14th October |
Posted by: VK5ZD - 27-09-2018, 11:13 PM - Forum: Contests, Field Days, Portable Operation, JOTA, SOTA
- Replies (2)
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The Elizabeth Amateur Radio Club is organising a Microwave Activity Day for Sunday, 14th October. Aside from testing equipment in preparation for the upcoming Spring VHF-UHF Field Day, it will also provide an opportunity for anyone interested in the microwave bands to come and see what it’s all about. We hope to have operators working from three sites; one north, one south and one east of the Adelaide CBD. The exact locations will be advised closer to the date. The equipment in use on the day will cover all amateur bands from 1296MHz to 76GHz.
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