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Re: HF LOOP
Hi Martin
I am grateful for your interest and truly respect what you have had to say. I would like to address the comments that you have kindly offered and so will offer a little clarification, that I
Hi Martin
I am grateful for your interest and truly respect what you have had to say. I would like to address the comments that you have kindly offered and so will offer a little clarification, that I
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By
Paul Newland
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#6920
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Re: HF LOOP
Hi Paul,
Are you sure about this ?
When receiving signal you are always trying to maximise the wanted signal, and minimise unwanted ones (including noise). Lots of folks concentrate on the overall
Hi Paul,
Are you sure about this ?
When receiving signal you are always trying to maximise the wanted signal, and minimise unwanted ones (including noise). Lots of folks concentrate on the overall
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By
Martin - G8JNJ
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#6919
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Re: HF LOOP
Re: my last, silly old man - I should have clarified that: top to bottom are Wellbrook (SDRplay RSPduo -M), CCW, (Rspduo - s) and longwire (RSP2)
Best Wishes
Paul
Re: my last, silly old man - I should have clarified that: top to bottom are Wellbrook (SDRplay RSPduo -M), CCW, (Rspduo - s) and longwire (RSP2)
Best Wishes
Paul
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By
Paul Newland
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#6918
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Re: HF LOOP
Hi All
I'll keep this short.
I am a virtual know nothing, but am currently using the CCW HF/VHF loop antenna amplifier, powered by an SDRplay RSP's Bias-T.
The head unit is attached to a 1M aperture,
Hi All
I'll keep this short.
I am a virtual know nothing, but am currently using the CCW HF/VHF loop antenna amplifier, powered by an SDRplay RSP's Bias-T.
The head unit is attached to a 1M aperture,
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By
Paul Newland
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#6917
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Re: HF LOOP
In my case the update works very well ! Indeed very sharp nulls and rejecting noise that good so i can use the 75 cm diameter loop indoors situated in front of the window !
Op ma 16 mrt. 2020 21:17
In my case the update works very well ! Indeed very sharp nulls and rejecting noise that good so i can use the 75 cm diameter loop indoors situated in front of the window !
Op ma 16 mrt. 2020 21:17
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By
Oene Spoelstra
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#6916
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Re: HF LOOP
I'm rather surprised that you did not see the improvement to the HF performance that the upgrade kit makes to the original VLF/HF amplifier. It may be worth trying the antenna again but in a slightly
I'm rather surprised that you did not see the improvement to the HF performance that the upgrade kit makes to the original VLF/HF amplifier. It may be worth trying the antenna again but in a slightly
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By
Chris Moulding
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#6915
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Re: HF LOOP
Hi Chris,
As you know from my previous posts some weeks ago I will have to disagree with your 1st statement, I done all the mods and was disappointed with the results and the CCW amp is now confined
Hi Chris,
As you know from my previous posts some weeks ago I will have to disagree with your 1st statement, I done all the mods and was disappointed with the results and the CCW amp is now confined
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By
Paul Gulliver
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#6914
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Re: Loop Antenna Amplifier - Service Bulletin 4 - HF performance improvement
It looks like something with a switch mode power supply nearby. Try running your PC on it's internal battery if it's a laptop. Try disconnecting and chargers or other power supplies to see if the
It looks like something with a switch mode power supply nearby. Try running your PC on it's internal battery if it's a laptop. Try disconnecting and chargers or other power supplies to see if the
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By
Chris Moulding
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#6913
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Re: HF LOOP
You will see a difference on HF after you have done the upgrade.
The reason that the any loop used with the Loop Antenna Amplifier is directional and has deep nulls is because the common mode noise
You will see a difference on HF after you have done the upgrade.
The reason that the any loop used with the Loop Antenna Amplifier is directional and has deep nulls is because the common mode noise
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By
Chris Moulding
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#6912
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Re: Loop Antenna Amplifier - Service Bulletin 4 - HF performance improvement
I have a RSPDuo and a lot of noise from FM stations when I use loop antenna amplifier from 1.8Mhz till 18Mhz. I have tried feeding the amp via bias tee and via indor unit. Also tried with an external
I have a RSPDuo and a lot of noise from FM stations when I use loop antenna amplifier from 1.8Mhz till 18Mhz. I have tried feeding the amp via bias tee and via indor unit. Also tried with an external
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By
@sdoros
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#6911
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Re: HF LOOP
I think you might be missing a point here. The fact that your CCW loop is very directional is one of the main points of its use. The MLA-30 is not directional therefore picks up signals from every
I think you might be missing a point here. The fact that your CCW loop is very directional is one of the main points of its use. The MLA-30 is not directional therefore picks up signals from every
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By
Tom Crosbie G6PZZ
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#6910
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Re: HF LOOP
I never had much luck with my VLF/HF unit. I tried it with the included wire and a 1m wide copper loop. Like many others with the MLA-30 I found the MLA-30 to out perform the CCW loop on Shortwave.
I never had much luck with my VLF/HF unit. I tried it with the included wire and a 1m wide copper loop. Like many others with the MLA-30 I found the MLA-30 to out perform the CCW loop on Shortwave.
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By
chipbutty
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#6909
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HF LOOP
Well was messing around with my loop today and change out the wire to 3/8 copper very impressed i highly recommend same dia as wellbrook .
Well was messing around with my loop today and change out the wire to 3/8 copper very impressed i highly recommend same dia as wellbrook .
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By
Brent Mcl
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#6908
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Re: Hi Z Antenna Amplifiers
I've been surprised at the amount of advice and help following my post on the Topband contesting email reflector. I've had several direct emails with advice too.
What I'm proposing to manufacture is a
I've been surprised at the amount of advice and help following my post on the Topband contesting email reflector. I've had several direct emails with advice too.
What I'm proposing to manufacture is a
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By
Chris Moulding
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#6907
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Re: Hi Z Antenna Amplifiers
There have been some quite detailed and amazing contributions. Very informative with a lot to learn.
73s
Bob
G3REP
There have been some quite detailed and amazing contributions. Very informative with a lot to learn.
73s
Bob
G3REP
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By
Bob G3REP
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#6906
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Re: Hi Z Antenna Amplifiers
Yes, it's been pretty active for a few days now. I hope he does well out of it.
David G3UNA
Yes, it's been pretty active for a few days now. I hope he does well out of it.
David G3UNA
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By
David Cutter
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#6905
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Hi Z Antenna Amplifiers
Good to see that Chris is getting some useful information from the Topband Community on the design of this
Good to see that Chris is getting some useful information from the Topband Community on the design of this
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By
Bob G3REP
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#6904
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Re: Coronavirus preparation at Cross Country Wireless
Be well. A lot of us will be looking forward to more of your products!
Hope all in the UK make it through okay.
Ed P.
--
Ed Pusey
esptwo@...
Be well. A lot of us will be looking forward to more of your products!
Hope all in the UK make it through okay.
Ed P.
--
Ed Pusey
esptwo@...
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By
Ed Pusey
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#6903
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Coronavirus preparation at Cross Country Wireless
Looking at the latest news it's likely that the UK will go into a form of self-isolation to reduce the spread of the coronavirus (COVID19) in about 10 to 14 days. All of us here are in the "at risk"
Looking at the latest news it's likely that the UK will go into a form of self-isolation to reduce the spread of the coronavirus (COVID19) in about 10 to 14 days. All of us here are in the "at risk"
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By
Chris Moulding
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#6902
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Re: Joke TCP/IP Warning
Odd that that's the second one I've seen where they called it COVID19.
The other one was the same words on a plain red background.
--
Brian Gregory.
bdgregory@...
www.Brian-Gregory.me.uk
Odd that that's the second one I've seen where they called it COVID19.
The other one was the same words on a plain red background.
--
Brian Gregory.
bdgregory@...
www.Brian-Gregory.me.uk
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By
Brian Gregory <bdgregory@...>
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#6901
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