https://www.ahrdf.net/forum/ Sat, 13 Jun 2026 21:30:55 +0000 MyBB https://www.ahrdf.net/forum/showthread.php?tid=1445 Sat, 17 Aug 2024 01:32:56 +0000 JR4ENY/1]]> https://www.ahrdf.net/forum/showthread.php?tid=1445 And found from Mount Isa have the carrier-like signal on 107.3MHz.
It is very useful to check weak TEP path but only 107.3 have it for a long time.
(I could see it on 106.5 too but it did'nt continue long time)

107.3 carrier-like signal continues long time but sometimes stops.
I can't find go and stop pattern yet.

The attached file shows a good sample when the carrier-like signal was cut off halfway through.

Why 107.3 have carrier-like signal on FM mode.
And why no others?

I guess in Australia uses a different FM broadcast modulation method than JA.

FB DX!

de JR4ENY/1 Awa

  202408162050.png (Size: 71.1 KB / Downloads: 180) ]]> And found from Mount Isa have the carrier-like signal on 107.3MHz.
It is very useful to check weak TEP path but only 107.3 have it for a long time.
(I could see it on 106.5 too but it did'nt continue long time)

107.3 carrier-like signal continues long time but sometimes stops.
I can't find go and stop pattern yet.

The attached file shows a good sample when the carrier-like signal was cut off halfway through.

Why 107.3 have carrier-like signal on FM mode.
And why no others?

I guess in Australia uses a different FM broadcast modulation method than JA.

FB DX!

de JR4ENY/1 Awa

  202408162050.png (Size: 71.1 KB / Downloads: 180) ]]> https://www.ahrdf.net/forum/showthread.php?tid=1333 Tue, 05 Sep 2023 04:06:51 +0000 VK2DVM]]> https://www.ahrdf.net/forum/showthread.php?tid=1333
Reason for asking is that I've been paying the power bills for the past few years, and with rising energy costs it's only getting more expensive.
I think it came to $1200 last year, so it's not exactly cheap, and it's only heading north.  

Unfortunately, the current location doesn't lend itself to solar + battery solutions, but there is another location within 5km that's a similar elevation and accessible which might be suitable - and viable if demand is there. Of course I would need to come up with a costed solution that was "reasonable" to existing hams that have an interest in seeing the beacons remain in service, assuming that they would be willing to donate something to the cause. The alternative is to motivate the VK1's to finish improvements to their site at Isaac's Ridge, and I would be open to donating to such a cause if it still exists. 


Regards,
David, VK2DVM]]>
Reason for asking is that I've been paying the power bills for the past few years, and with rising energy costs it's only getting more expensive.
I think it came to $1200 last year, so it's not exactly cheap, and it's only heading north.  

Unfortunately, the current location doesn't lend itself to solar + battery solutions, but there is another location within 5km that's a similar elevation and accessible which might be suitable - and viable if demand is there. Of course I would need to come up with a costed solution that was "reasonable" to existing hams that have an interest in seeing the beacons remain in service, assuming that they would be willing to donate something to the cause. The alternative is to motivate the VK1's to finish improvements to their site at Isaac's Ridge, and I would be open to donating to such a cause if it still exists. 


Regards,
David, VK2DVM]]> https://www.ahrdf.net/forum/showthread.php?tid=1306 Sun, 04 Jun 2023 04:41:14 +0000 VK2KRR]]> https://www.ahrdf.net/forum/showthread.php?tid=1306 VHF in southern Australia is at a great loss without this beacon site. So just throwing the idea out there in case someone or a group is able to rectify this situation.

As a memory refresher, this is some of what I used to enjoy here, Esperance is 2313 km from me -





  Solid Esperance signal 4.30 am 25.2.05.jpg (Size: 67.12 KB / Downloads: 560)

  10 mins Esperance beacon 5am 25.2.05.jpg (Size: 128.1 KB / Downloads: 535) ]]> VHF in southern Australia is at a great loss without this beacon site. So just throwing the idea out there in case someone or a group is able to rectify this situation.

As a memory refresher, this is some of what I used to enjoy here, Esperance is 2313 km from me -





  Solid Esperance signal 4.30 am 25.2.05.jpg (Size: 67.12 KB / Downloads: 560)

  10 mins Esperance beacon 5am 25.2.05.jpg (Size: 128.1 KB / Downloads: 535) ]]> https://www.ahrdf.net/forum/showthread.php?tid=1274 Mon, 23 Jan 2023 04:18:43 +0000 ZL1RS]]> https://www.ahrdf.net/forum/showthread.php?tid=1274
It is working on a 'semi-intermittent' basis into Warwick's 6m Yagi ... e.g. the beacon is running when he is not on 6m himself.

Some 'last minute' things still to attend to:
Changing the ID to read Warwick's new locator - BI01xa  (it is still sending his old locator - BI00xx)
Upgrading the solar power system with items on hand to improve reliability and protect the battery

More info  HERE

73, Bob  ZL1RS]]>
It is working on a 'semi-intermittent' basis into Warwick's 6m Yagi ... e.g. the beacon is running when he is not on 6m himself.

Some 'last minute' things still to attend to:
Changing the ID to read Warwick's new locator - BI01xa  (it is still sending his old locator - BI00xx)
Upgrading the solar power system with items on hand to improve reliability and protect the battery

More info  HERE

73, Bob  ZL1RS]]> https://www.ahrdf.net/forum/showthread.php?tid=1243 Sat, 12 Nov 2022 10:05:20 +0000 VK3LU]]> https://www.ahrdf.net/forum/showthread.php?tid=1243 My observations indicate that it is about 150Hz high with spurii either side.
Other carriers I observe are clean.
I am using WSJTX in WSPR mode to check.

Nev]]> My observations indicate that it is about 150Hz high with spurii either side.
Other carriers I observe are clean.
I am using WSJTX in WSPR mode to check.

Nev]]> https://www.ahrdf.net/forum/showthread.php?tid=1200 Fri, 10 Jun 2022 13:56:04 +0000 ZS1AGX]]> https://www.ahrdf.net/forum/showthread.php?tid=1200
Hello,

I have written firmware for fast beacon keyer for mega16. With 16Mhz xtal it sends a message
at 4400bps in about 20mS. This needs vhf radio with asynchronous FSK link. The idea is to find
out how often short burst tropo exists over ocean path (if it does). Tropo signals are strong
signals and only about 50watts of power is required; but the FSK link performance probably
depends a great deal on transmit deviation setting.

www.qsl.net/zs1agx/mega16/keyr003.html

Experiment with signal polarization over ocean path is also of interest.

This keyer needs a serial connection at 19200bps to display received text. The keyer has a selcall
counter to count number of valid beacon detects. The message is sent as delay modulated varicode so
the FSK works at any fixed phase shift and has no DC component.

73 agx]]>
Hello,

I have written firmware for fast beacon keyer for mega16. With 16Mhz xtal it sends a message
at 4400bps in about 20mS. This needs vhf radio with asynchronous FSK link. The idea is to find
out how often short burst tropo exists over ocean path (if it does). Tropo signals are strong
signals and only about 50watts of power is required; but the FSK link performance probably
depends a great deal on transmit deviation setting.

www.qsl.net/zs1agx/mega16/keyr003.html

Experiment with signal polarization over ocean path is also of interest.

This keyer needs a serial connection at 19200bps to display received text. The keyer has a selcall
counter to count number of valid beacon detects. The message is sent as delay modulated varicode so
the FSK works at any fixed phase shift and has no DC component.

73 agx]]> https://www.ahrdf.net/forum/showthread.php?tid=1188 Thu, 12 May 2022 21:11:17 +0000 VK2BLS]]> https://www.ahrdf.net/forum/showthread.php?tid=1188
VK2RPM  23CM, 'Store & Forward' Simplex repeater is back in service again. (AKA "Polly")

1296.850 FM Simplex. Located at Maddens Plains south of Sydney.

It has a long Ident each 10 Mins that can help you find it.

Even if no one is around, it is stil handy for checking your own 23CM signal.

Also plays back your data modes, eg SSTV works well.

Give it a Go sometime.

73 Darrell]]>
VK2RPM  23CM, 'Store & Forward' Simplex repeater is back in service again. (AKA "Polly")

1296.850 FM Simplex. Located at Maddens Plains south of Sydney.

It has a long Ident each 10 Mins that can help you find it.

Even if no one is around, it is stil handy for checking your own 23CM signal.

Also plays back your data modes, eg SSTV works well.

Give it a Go sometime.

73 Darrell]]> https://www.ahrdf.net/forum/showthread.php?tid=1169 Sat, 12 Mar 2022 23:49:47 +0000 VK4ADC]]> https://www.ahrdf.net/forum/showthread.php?tid=1169
It transmits 3 CW IDs, straight carrier then a JT4D sequence.

To decode JT4D on WSJT-X, you need to enable the box marked "Enable VHF and submode features" in File/Setup.  (Thanks Peter VK5PJ !)
Select JT4 from the Mode menu then set Submode to D from the options box to the right of the FTol box.

I manually set the radio to 144.438500/USB to get the 1500Hz tones required on the waterfall and to decode.
eg  2323 -13 -0.0 1437 $* VK4RTT QG62LM


Doug VK4ADC]]>
It transmits 3 CW IDs, straight carrier then a JT4D sequence.

To decode JT4D on WSJT-X, you need to enable the box marked "Enable VHF and submode features" in File/Setup.  (Thanks Peter VK5PJ !)
Select JT4 from the Mode menu then set Submode to D from the options box to the right of the FTol box.

I manually set the radio to 144.438500/USB to get the 1500Hz tones required on the waterfall and to decode.
eg  2323 -13 -0.0 1437 $* VK4RTT QG62LM


Doug VK4ADC]]> https://www.ahrdf.net/forum/showthread.php?tid=1073 Fri, 27 Aug 2021 04:36:02 +0000 VK4ADC]]> https://www.ahrdf.net/forum/showthread.php?tid=1073 BEACONS  28.205.8 

I would like to let everyone know of a new ten metre band beacon that has been operating for the last 6 months or so, about 27 Kilometres N/W of Brisbane City at the my home QTH, I'm Robert VK4LA.

The beacon is Located In Northlakes and is homebrew . It operates using callsign VK4LA and is on 28.205.8 cw.

The beacon consists of a 5 watt Transmitter with a 1/2 wave vertical antenna 35ft off the ground.

I would appreciate some signal reports from all who can hear it.

If you wish to send a signal report VIA EMAIL, my email address is huntingqld@bigpond.com and I also have some photos of beacon in use to view on my page on qrz.com

Looking forward to getting some signal reports from all.

for WIA National news this is Robert VK4LA "



From text edition for 2021 AUGUST 29 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-2021-08-29.mp3]]> BEACONS  28.205.8 

I would like to let everyone know of a new ten metre band beacon that has been operating for the last 6 months or so, about 27 Kilometres N/W of Brisbane City at the my home QTH, I'm Robert VK4LA.

The beacon is Located In Northlakes and is homebrew . It operates using callsign VK4LA and is on 28.205.8 cw.

The beacon consists of a 5 watt Transmitter with a 1/2 wave vertical antenna 35ft off the ground.

I would appreciate some signal reports from all who can hear it.

If you wish to send a signal report VIA EMAIL, my email address is huntingqld@bigpond.com and I also have some photos of beacon in use to view on my page on qrz.com

Looking forward to getting some signal reports from all.

for WIA National news this is Robert VK4LA "



From text edition for 2021 AUGUST 29 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-2021-08-29.mp3]]> https://www.ahrdf.net/forum/showthread.php?tid=1009 Sat, 05 Dec 2020 11:28:50 +0000 OZ2M]]> https://www.ahrdf.net/forum/showthread.php?tid=1009 https://www.rfzero.net/documentation/thi...z-25-w-pa/]]> https://www.rfzero.net/documentation/thi...z-25-w-pa/]]> https://www.ahrdf.net/forum/showthread.php?tid=935 Sat, 07 Mar 2020 04:43:00 +0000 VK6ZFG]]> https://www.ahrdf.net/forum/showthread.php?tid=935
Equipment installation planned for 28th March.

73s

Igor]]>
Equipment installation planned for 28th March.

73s

Igor]]> https://www.ahrdf.net/forum/showthread.php?tid=708 Tue, 15 Jan 2019 03:48:10 +0000 VK6RO]]> https://www.ahrdf.net/forum/showthread.php?tid=708
Video courtesy VK6UU Will link below.

https://www.youtube.com/watch?v=nQ73JU0J...e=youtu.be

VK6RO  january 15 2019


Info courtesy VK6KW of WA VHF group

The new incarnation of VK6RPH is finally on air  on all 4 bands in temporary/shakedown mode at Wireless Hill.

The full description is available on the www.wavhfgroup.org.au website along with our other beacons ... note that the pace of change means that sometimes the web is not completely up-to-date.

VK6RPH- 2019: GPSDO controlled, each band runs a one minute cycle, base of antenna elevation ~46m ASL and all are vertical polarity (Diamond X-5000 and a cut down CB Ringo on 6m).

6m          50.066 transmitting CW, JT4D, JT65, ___

 

2m          144.460 transmitting CW, JT4D,  ___    

 

70cm     432.460 transmitting CW, JT4F, ___

 

23cm     1296.460 transmitting CW, JT4F, ___]]>
Video courtesy VK6UU Will link below.

https://www.youtube.com/watch?v=nQ73JU0J...e=youtu.be

VK6RO  january 15 2019


Info courtesy VK6KW of WA VHF group

The new incarnation of VK6RPH is finally on air  on all 4 bands in temporary/shakedown mode at Wireless Hill.

The full description is available on the www.wavhfgroup.org.au website along with our other beacons ... note that the pace of change means that sometimes the web is not completely up-to-date.

VK6RPH- 2019: GPSDO controlled, each band runs a one minute cycle, base of antenna elevation ~46m ASL and all are vertical polarity (Diamond X-5000 and a cut down CB Ringo on 6m).

6m          50.066 transmitting CW, JT4D, JT65, ___

 

2m          144.460 transmitting CW, JT4D,  ___    

 

70cm     432.460 transmitting CW, JT4F, ___

 

23cm     1296.460 transmitting CW, JT4F, ___]]> https://www.ahrdf.net/forum/showthread.php?tid=591 Sun, 01 Jul 2018 06:19:45 +0000 VK4ADC]]> https://www.ahrdf.net/forum/showthread.php?tid=591
I suspect that the VK4RTT beacon, 144.440, is operating from Redcliffe clubrooms rather than its normal location in the Bunya Mts.  That's fine.  What I would like to know is what RF power it is currently operating at and the antenna type in use.

I can just hear it from the home QTH (about 60kms) on an 11el horizontal yagi but it is really quite weak - hence the question.  

Anybody have up-to-date info ??

Thanks
Doug

PS I have already seen the VKLogger beacon data but I suspect that the antenna there refers to the Mt Mowbullan configuration.]]>
I suspect that the VK4RTT beacon, 144.440, is operating from Redcliffe clubrooms rather than its normal location in the Bunya Mts.  That's fine.  What I would like to know is what RF power it is currently operating at and the antenna type in use.

I can just hear it from the home QTH (about 60kms) on an 11el horizontal yagi but it is really quite weak - hence the question.  

Anybody have up-to-date info ??

Thanks
Doug

PS I have already seen the VKLogger beacon data but I suspect that the antenna there refers to the Mt Mowbullan configuration.]]> https://www.ahrdf.net/forum/showthread.php?tid=534 Sun, 18 Mar 2018 10:42:11 +0000 VK3LU]]> https://www.ahrdf.net/forum/showthread.php?tid=534  
It's the only one I can hear, faintly unfortunately but it is always there.

73
Nev]]>  
It's the only one I can hear, faintly unfortunately but it is always there.

73
Nev]]> https://www.ahrdf.net/forum/showthread.php?tid=454 Sat, 02 Dec 2017 08:12:30 +0000 VK3LU]]> https://www.ahrdf.net/forum/showthread.php?tid=454
Nev]]>
Nev]]>