Search found 172 matches

by VK3LU
Fri Aug 19, 2016 12:56 pm
Forum: Propagation & Solar Cycle News
Topic: Solar Cycle 25...how old will u be?
Replies: 39
Views: 16833

Re: Solar Cycle 25...how old will u be?

I will be 82, I hope!
It's a daunting thought.
My introduction to 6m was in 1958 when a few watts,AM, and a reasonable antenna enabled me to work all VK, ZL, and a heap of JAs without really trying.
See you in 2022?

Nev
by VK3LU
Fri May 27, 2016 9:12 pm
Forum: Software Defined Radio
Topic: SDRPlay RSP
Replies: 15
Views: 5594

Re: SDRPlay RSP

Thanks Russ,
The laptop I use for ham use is running XP, so I would probably have to upgrade. :roll: :roll:
SDR is an intrigueing technique.

73 Nev
by VK3LU
Fri May 27, 2016 6:40 pm
Forum: Software Defined Radio
Topic: SDRPlay RSP
Replies: 15
Views: 5594

Re: SDRPlay RSP

Russ,
What versions of Windows can be used with SDRPlay?

73 Nev
by VK3LU
Sat May 21, 2016 8:08 am
Forum: Digital Modes Miscellaneous
Topic: Windows 10 and digimode programs
Replies: 22
Views: 8603

Re: Windows 10 and digimode programs

Mus, We have Telstra wireless broadband and it is reasonably fast, depending on traffic of course, and we have 8gb at modest cost. I upgraded 2 laptops to W10 successfuly on Telstra's freebie day. I started the first at 5.30 am and it took about two and half hours, reasonable considering the interne...
by VK3LU
Thu May 19, 2016 4:51 pm
Forum: EMC, Interference
Topic: Quarter wave stub bandpass plot
Replies: 12
Views: 4712

Re: Quarter wave stub bandpass plot

Igor, that's great. Just what I was after.
Good to see that ch6 is not affected by the edge of the notch.
I'll print it out for future reference.

Thanks
73 Nev
by VK3LU
Tue May 17, 2016 4:50 pm
Forum: EMC, Interference
Topic: Quarter wave stub bandpass plot
Replies: 12
Views: 4712

Re: Quarter wave stub bandpass plot

Hi Lou,
Weatherproofing is not a problem, it would be mounted in the roof cavity.
My main problem is that I don't have the gear to set it up properly, it would be a case of cut and try.
The Kingray looks an excellent option. I must away and start Googling!

73 Nev
by VK3LU
Tue May 17, 2016 4:36 pm
Forum: LF, MF, HF
Topic: 40 meter rotatable dipole questions
Replies: 42
Views: 13606

Re: 40 meter rotatable dipole questions

VK3HJ,
How did the Bobtail Curtain perform?
I have always been intrigued by that type of antenna. Alas I don't have the room.

73 Nev
by VK3LU
Tue May 17, 2016 3:42 pm
Forum: EMC, Interference
Topic: Quarter wave stub bandpass plot
Replies: 12
Views: 4712

Re: Quarter wave stub bandpass plot

Gents, Thanks for your input. The reason I said I wanted to use RG6 was that it is a simple matter using F connectors and a T adaptor to insert the stub into an existing setup. If I use, say, RG213 then I have to cobble up something using adaptors. The only way to get around that is to use a small m...
by VK3LU
Mon May 16, 2016 5:11 pm
Forum: LF, MF, HF
Topic: 40 meter rotatable dipole questions
Replies: 42
Views: 13606

Re: 40 meter rotatable dipole questions

Probably because Mike is really only interested in a rotateable dipole. :shock:

73 Nev
by VK3LU
Sun May 15, 2016 8:52 pm
Forum: Ancillary, Test Equipment, Components & Parts
Topic: SMPS, which would you recomend?
Replies: 15
Views: 5397

Re: SMPS, which would you recomend?

Thanks Lou,
Manson/Doss looks like the go.

73 Nev
by VK3LU
Sun May 15, 2016 6:48 pm
Forum: Ancillary, Test Equipment, Components & Parts
Topic: SMPS, which would you recomend?
Replies: 15
Views: 5397

Re: SMPS, which would you recomend?

Peter VK3QI,
I googled Manson power supplies to find an Oz distributor and had a look at the Radio Parts site.
They have an SPS8400 listed but the brand is DOSS. Is that the same as Manson?
I was considering a Daiwa SMPS.

Thanks
Nev
by VK3LU
Fri May 13, 2016 5:01 pm
Forum: LF, MF, HF
Topic: 40 meter rotatable dipole questions
Replies: 42
Views: 13606

Re: 40 meter rotatable dipole questions

The Yahoo one. I hope thats the right one as it worked last time.
John, I will attach the info.
Nev
page1.jpg
page2.jpg
by VK3LU
Fri May 13, 2016 2:23 pm
Forum: LF, MF, HF
Topic: 40 meter rotatable dipole questions
Replies: 42
Views: 13606

Re: 40 meter rotatable dipole questions

Mike,
I have emailed something that might be of interest.

73 Nev
by VK3LU
Thu May 12, 2016 6:30 pm
Forum: LF, MF, HF
Topic: Legally Indentifying
Replies: 10
Views: 4895

Re: Legally Indentifying

Is the ACMA really interested?

Nev
by VK3LU
Tue May 03, 2016 1:19 pm
Forum: EMC, Interference
Topic: Quarter wave stub bandpass plot
Replies: 12
Views: 4712

Re: Quarter wave stub bandpass plot

Alan,
Where do I get some "real" 75ohm coax that is superior to RG6 in all respects? One that will make a good quarter wave stub at 144mHz.
Incidentally, I did some resistance measurements on some RG6 and got a dead S/C between foil and braid, and yes I kept the foil and braid apart.

Nev
by VK3LU
Sat Apr 30, 2016 1:23 pm
Forum: EMC, Interference
Topic: Quarter wave stub bandpass plot
Replies: 12
Views: 4712

Quarter wave stub bandpass plot

Hi all,
Has anyone ever plotted / swept the frequency response of a quarter wave stub of RG6 at 144 mHz.
I would be interested to see how it looks with regard to its proximity to TV RF channel 6 where ch7 is now.

Thanks in anticipation
Nev
by VK3LU
Tue Apr 26, 2016 6:15 pm
Forum: LF, MF, HF
Topic: Legally Indentifying
Replies: 10
Views: 4895

Re: Legally Indentifying

Allan,
I might be wrong but I think the WSPR2 software has CW id as an option.

Nev
by VK3LU
Tue Apr 26, 2016 7:59 am
Forum: WSPR
Topic: WSPR Power Consumption
Replies: 7
Views: 3618

Re: WSPR Power Consumption

Allan,
I included the PC because I was talking about TX and RX. If TX only is the go then it's dead easy.
Use a U3S or Raspberry Pi.

Nev
by VK3LU
Mon Apr 25, 2016 10:39 am
Forum: WSPR
Topic: WSPR Power Consumption
Replies: 7
Views: 3618

Re: WSPR Power Consumption

Not quite Iain,
What about receiving?

Cheers
Nev
by VK3LU
Sun Apr 24, 2016 7:47 pm
Forum: WSPR
Topic: WSPR Power Consumption
Replies: 7
Views: 3618

Re: WSPR Power Consumption

Allan,
What do you use for receiving?
Nev