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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Re\:\s+Re\:\s+HB9ASB\.\.\.\s*$/: 10 ]

Total 10 documents matching your query.

1. Re: LF: Re: Re: HB9ASB... (score: 1)
Author: Andy Talbot <[email protected]>
Date: Wed, 10 Aug 2011 18:28:36 +0100
Not if the link-Tx is built into the same housing as the head amplifier and a battery is used for power.   Then the antenan can only work against its own mast / mounting-point. THAT is the counterpoi
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-08/msg00001.html (26,216 bytes)

2. Re: LF: Re: Re: HB9ASB... (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Wed, 10 Aug 2011 18:12:19 +0100
Graham Of course there is a FEEDER to the RX at the remote site before it is relayed via a radio link. As explained the feeder is the main element for signal es noise pickup. If there was no feeder t
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-08/msg00113.html (25,461 bytes)

3. Re: LF: Re: Re: HB9ASB... (score: 1)
Author: Andy Talbot <[email protected]>
Date: Wed, 10 Aug 2011 18:53:15 +0100
If the only other element is the mast, and that's away from local QRM it all works as it should.  Not necesasrily anything like as bad as the full length of the feeder contributing to pickup.   And w
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-08/msg00140.html (13,783 bytes)

4. Re: LF: Re: Re: HB9ASB... (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Wed, 10 Aug 2011 19:12:43 +0100
Let us hear from the man that is performing this trick !!!!!!! Could be circus stunt !! -- Original Message -- From: [email protected] Andy Talbot To: [email protected] rsgb_lf_group@bl
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-08/msg00280.html (14,358 bytes)

5. LF: Re: Re: HB9ASB... (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Wed, 10 Aug 2011 16:29:10 +0100
This miniwhip/probe seems to be a very complicated antenna and difficult to explain its properties. I suggest someone takes this antenna out into the middle of a field away from any noise source and
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-08/msg00282.html (22,447 bytes)

6. Re: LF: Re: Re: HB9ASB... (score: 1)
Author: "Graham" <[email protected]>
Date: Wed, 10 Aug 2011 19:30:08 +0100
Far as I know, its a FM radio mike tx , with everything in a tin box at the end of the garden .. For usability at LF/MF this Nordholt Ae > http://websdr.pa3weg.nl/ takes some beating , but I believe
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-08/msg00408.html (28,258 bytes)

7. LF: Re: Re: HB9ASB... (score: 1)
Author: "James Moritz" <[email protected]>
Date: Thu, 11 Aug 2011 10:39:16 +0100
Dear Minto, LF Group, I did a similar measurement around 1200utc yesterday with lower daytime noise levels - DCF39 was 870uV/m here, while the noise level was approximately 0.1uV/m in 1Hz. With 0.5Hz
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-08/msg00538.html (13,015 bytes)

8. Re: LF: Re: Re: HB9ASB... (score: 1)
Author: "Graham" <[email protected]>
Date: Wed, 10 Aug 2011 17:23:12 +0100
Im sure one station uses a battery and radio link from the probe Ae so no feeder ? G. From: [email protected] mal hamilton Sent: Wednesday, August 10, 2011 4:29 PM To: [email protected]
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-08/msg00571.html (23,780 bytes)

9. Re: LF: Re: Re: HB9ASB... (score: 1)
Author: "mal hamilton" <[email protected]>
Date: Wed, 10 Aug 2011 18:42:56 +0100
Andy Highly unlikely that the link-tx is in the same box, even so the other element as u say would be the the mast/mounting and that could be say 20 plus feet, just as bad as the feeder senario!! g3k
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-08/msg00656.html (28,567 bytes)

10. Re: LF: Re: Re: HB9ASB... (score: 1)
Author: Andy Talbot <[email protected]>
Date: Wed, 10 Aug 2011 18:55:56 +0100
I've been pointed at these URLs http://www.vlf.it/immagine/minimal_E.html http://www.vlf.it/FSR/FSR.html 'jnt  
/rsgb_lf_group-archives/html/rsgb_lf_group/2011-08/msg00798.html (12,638 bytes)


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