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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+QRO\s+\/\s+QRP\s*$/: 12 ]

Total 12 documents matching your query.

1. RE: LF: QRO / QRP (score: 1)
Author: "g3zjo" <[email protected]>
Date: Tue, 1 Jun 2010 19:44:29 +0100
Should have added the credentials too :- * Made it to the Czech Republic * Eddie Hi Ha-Jo MAS 500kHz :- My complete TX - CW, QRSS, WSPR, 70mm X 55mm X 75mm a bit fat maybe but I recon that is shirt p
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00010.html (10,097 bytes)

2. Re: LF: QRO / QRP (score: 1)
Author: Chris Trayner <[email protected]>
Date: Tue, 1 Jun 2010 16:05:33 +0100
Hi Hugh, Thanks for the question - it's an excuse not to settle down to the marking again ;-) The energy of a photon is E = h f where h is Planck's constant, 6.626 . 10^-34 Js and f is frequency, Hz.
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00022.html (11,944 bytes)

3. Re: LF: QRO / QRP (score: 1)
Author: "Hugh_m0wye" <[email protected]>
Date: Tue, 1 Jun 2010 17:23:32 +0100
Thankyou Chris, and Simon, It was kind of you to take time out of your marking schedule to calculate that. If I was transmitting a signal I wouldn't consciously decide how often to transmit photons,
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00195.html (13,439 bytes)

4. Re: LF: QRO / QRP (score: 1)
Author: Simon Newhouse <[email protected]>
Date: Tue, 01 Jun 2010 16:03:06 +0100
E=hv E=energy of the photon v=frequency h=planks constant Very very small is the answer and smaller at lower frequencies. Hugh_m0wye wrote: Chris and group, What an intriguing thought - building a vi
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00196.html (12,172 bytes)

5. LF: QRO / QRP (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Tue, 01 Jun 2010 13:06:59 +0100
I run a 650W transmitter on 137kHz to radiate 350mW ERP. Is that QRO or QRP? Or both simultaneously? Mike, G3XDV ==
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00312.html (8,479 bytes)

6. Re: LF: QRO / QRP (score: 1)
Author: [email protected]
Date: 01 Jun 2010 12:58 GMT
Dear all, for the "Minimum Art Session" (MAS) pioneered by DJ7ST I have built a small two stage 80 m TX (3 watts output) which fits into the pocket of my trousers or jacket. If You can do the same wi
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00394.html (9,433 bytes)

7. RE: LF: QRO / QRP (score: 1)
Author: "g3zjo" <[email protected]>
Date: Tue, 1 Jun 2010 19:38:15 +0100
Hi Ha-Jo MAS 500kHz :- My complete TX - CW, QRSS, WSPR, 70mm X 55mm X 75mm a bit fat maybe but I recon that is shirt pocket size N.B. Does not include the Antenna. No Computer for the WSPR. Consumes
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00413.html (9,774 bytes)

8. RE: LF: QRO / QRP (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Tue, 1 Jun 2010 15:13:14 +0200
Hello Ha-Jo, interesting approach that QRP not only includes power (input, output, ERP ...) but also dimensions. I can live with that, on the condition that the dimensions are given in wavelengths ;-
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00450.html (11,160 bytes)

9. Re: LF: QRO / QRP (score: 1)
Author: Andy Talbot <[email protected]>
Date: Tue, 1 Jun 2010 14:34:25 +0100
Unfair to microwavers.:-(   At 10GHz that's 14 microns by 28um by 42um long Andy www.g4jnt.com On 1 June 2010 14:13, Rik Strobbe <[email protected]> wrote: Hello Ha-Jo, interesting approach
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00630.html (13,093 bytes)

10. RE: LF: QRO / QRP (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Tue, 1 Jun 2010 17:29:29 +0200
Very very small is the answer and smaller at lower frequencies. Indeed, and thus about 73500 times higher at 10GHz than at 136kHz ... Andy will not be happy ;-) 73, Rik ON7YD - OR7T BTW: Planck const
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00632.html (14,077 bytes)

11. Re: LF: QRO / QRP (score: 1)
Author: Chris Trayner <[email protected]>
Date: Tue, 1 Jun 2010 14:35:13 +0100
Hi Rik, We meet something like that at work, where there are THz researchers as well as those of us interested in (V)LF. They look down their noses at it if there aren't twelve zeroes in the frequenc
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00641.html (10,813 bytes)

12. Re: LF: QRO / QRP (score: 1)
Author: "Hugh_m0wye" <[email protected]>
Date: Tue, 1 Jun 2010 15:36:21 +0100
Chris and group, What an intriguing thought - building a village inside a photon. It reminded me about the article on Toroidal Antennas that Jim M0BMU drrew our attention to on 1st March. It containe
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-06/msg00762.html (11,464 bytes)


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