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81. LF: G4JNT web site (score: 1)
Author: "Andy Talbot" <[email protected]>
Date: Fri, 12 Dec 2008 18:57:23 +0000
There is now a duplicate of my website at www.g4jnt.com in case of any future problems with either; The scrbg one will always take priority for updates. At the moment I'm keeping it as an exact copy
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00151.html (9,119 bytes)

82. LF: new G4JNT web site (score: 1)
Author: "Andy Talbot" <[email protected]>
Date: Mon, 22 Dec 2008 17:01:15 +0000
As predicted, my original ...scrbg/g4jnt web site has disappeared due to problems with the server / hosting. Everything can now be found at www.g4jnt.com Andy G4JNT
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00300.html (8,848 bytes)

83. Re: Why WSPR when you can SHOUT! was Re: LF: wspr (score: 1)
Author: "Andy Talbot" <[email protected]>
Date: Wed, 24 Dec 2008 19:10:37 +0000
WSJT7.02 is a Software Suite that includes WSPR. The JT65x and FSK441 modes, the primary ones within that package, are designed for V/UHF. Other modes aimed at use in different parts of the spectrum,
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00480.html (22,992 bytes)

84. Re: !!!Re: LF: Re: E field active antennas (score: 1)
Author: "Andy Talbot" <[email protected]>
Date: Fri, 5 Dec 2008 20:02:36 +0000
Simultaneous whole band Rx, flat response. And yes, it must be simultaneous 2 - 30MHz By all means come down and sort it out for us if you like. But mine does the job perfectly. Was only speculating
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00563.html (17,927 bytes)

85. Re: LF: Re: Re: WSPR (score: 1)
Author: "Andy Talbot" <[email protected]>
Date: Tue, 23 Dec 2008 22:19:08 +0000
No, the receiver can demodulate all the 6Hz-wide signals that may be present within the 200Hz Rx search bandwidth. The operational Rx bandwidth for receiving purposes is 6Hz, generated by the DSP fil
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00569.html (15,122 bytes)

86. Re: LF: E field active antennas (score: 1)
Author: "Andy Talbot" <[email protected]>
Date: Fri, 5 Dec 2008 20:20:00 +0000
Hi Peter et group. Sounds an interesting antenna, but for full band Rx coverage I can't see what a folded resistively loaded dipole has to offer over the conventional short whip into a high impedance
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00643.html (14,887 bytes)

87. Re: LF: Re: E field active antennas (score: 1)
Author: "Andy Talbot" <[email protected]>
Date: Fri, 5 Dec 2008 19:05:16 +0000
If you'd bothered to read the post, you'd have seen it was for a work related task where we want a broad band active Rx antenna for the whole HF band.. Can you tell me how to get any other sort of an
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00652.html (14,862 bytes)

88. Re: LF: ERP calculations / measurements (score: 1)
Author: "Andy Talbot" <[email protected]>
Date: Sat, 6 Dec 2008 11:04:43 +0000
A perfect lossless gound and a lossless (superconducting :-) radiator. Real reductions in gain which appear as increase in antenna resistance come about when the lossy ground terminates the local E f
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-12/msg00672.html (12,632 bytes)

89. Re: LF: Re: WSPR - JNT (score: 1)
Author: Andy Talbot <[email protected]>
Date: Fri, 30 Jan 2009 19:18:43 +0000
Just dropped 3dB now - as there are more stns on and monitoring. next drop will be in 20 - 30 minutes Andy G4JNT www.g4jnt.com 2009/1/30 Markus Vester <[email protected]> Dear Andy, if you want to
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00039.html (12,453 bytes)

90. Re: LF: RE: Olivia 8 x 250 / psk31 / MFSK 8 503 CENTER BEACON - RUNNING NOW - 1615 HRS (score: 1)
Author: "Andy Talbot" <[email protected]>
Date: Sat, 3 Jan 2009 19:24:38 +0000
Simultaneous MULTIPSK, identical reception durations. -- OLIVIA : q3zR(tR,4Lv;#yN CQ CQ CQ DE...g0nbd g0nbd g0nbd CQ CQ CQ DE...g0nbd g0nbd g0nbd CQ CQ CQ DE...g0nbd g0nbd g0nbd kkk =10XWLtf%uaAQ$G(I
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00056.html (17,296 bytes)

91. Re: LF: Re: WSPR 502.400 Dial frequency ? (score: 1)
Author: Andy Talbot <[email protected]>
Date: Mon, 26 Jan 2009 18:39:20 +0000
Signal on 503870000mHz, 33% T/R cycle being radiated now... Andy G4JNT www.g4jnt.com
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00084.html (13,555 bytes)

92. Re: LF: WSPR Distance (score: 1)
Author: Andy Talbot <[email protected]>
Date: Fri, 30 Jan 2009 23:55:13 +0000
Closing down for the night after that last blast at QRO 73 All Andy G4JNT www.g4jnt.com
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00137.html (10,807 bytes)

93. LF: Direct LF Upconverter (score: 1)
Author: "Andy Talbot" <[email protected]>
Date: Sat, 17 Jan 2009 23:59:10 +0000
Direct soundcard to LF upconverter; image reject mixer with allpass phase network for a few hundred Hz bandwidth. http://www.g4jnt.com/LFUpconv.pdf Around 40dBc sideband rejection, so a bit marginal
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00244.html (9,287 bytes)

94. Re: LF: Re: WSPR 502.400 Dial frequency ? (score: 1)
Author: Andy Talbot <[email protected]>
Date: Mon, 26 Jan 2009 22:14:11 +0000
Keep seeing mention of this WSPR database - feel a Google search coming on. Full locator is IO90IV, or more accurately IO90IV58EI (using GBR36 mapping) or IO90IV58AH (using WGS84) Andy G4JNT www.g4jn
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00329.html (14,432 bytes)

95. Re: LF: Re: Censorship (score: 1)
Author: Andy Talbot <[email protected]>
Date: Mon, 26 Jan 2009 18:23:13 +0000
Oh, those things! Have seen them before but never knew the name. Still a few adaptors for them sculling around in the lab at work - somehow they escaped being put into thd skip when we rationalised a
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00367.html (13,409 bytes)

96. Re: LF: WSPR 503.471 G4JNT (score: 1)
Author: Andy Talbot <[email protected]>
Date: Sun, 25 Jan 2009 10:19:55 +0000
Just realised. The WSPR Software won't accept any-old value typed into the Tx power box. It has to be one from a pull down menu. Nearest options are 23 or 27dBm. Andy G4JNT www.g4jnt.com
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00381.html (12,159 bytes)

97. Re: LF: WE2XGR/2 in WSPR mode (score: 1)
Author: Andy Talbot <[email protected]>
Date: Sat, 31 Jan 2009 22:15:52 +0000
First decode here at 2156 2009-01-31 21:58 WE2XGR 0.508511 -18 0 FN31 +57 501.187 GM4SLV IP90gg 5134 3190 2009-01-31 21:56 WE2XGR 0.508510 -27 0 FN31 +57 501.187 G4JNT IO90iv 5399 3355 2009-01-31 21:
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00403.html (14,741 bytes)

98. Re: LF: RE: Olivia 8 x 250 / psk31 / MFSK 8 503 CENTER BEACON - RUNNING NOW - 1615 HRS (score: 1)
Author: "Andy Talbot" <[email protected]>
Date: Sat, 3 Jan 2009 19:02:07 +0000
A sudden enhancement and just got some simultaneous copy : OLIVIA : KAXNnjr4r1i`qaXsaN"@Jtzr- CQ CQ CQ DE.b$0nb>mMbD g0nbd CQ CQ CQ DE..g0nbd g0nbd g0nbd CQ CQ CQ DE...g0nbd g0nbd g0nbd kkk )u~DEc$B5
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00407.html (16,823 bytes)

99. LF: QRP WSPR beacon (score: 1)
Author: Andy Talbot <[email protected]>
Date: Sat, 31 Jan 2009 13:25:57 +0000
Andy G4JNT www.g4jnt.com
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00438.html (9,851 bytes)

100. Re: LF: Re: Re: WSPR 503.5 (score: 1)
Author: Andy Talbot <[email protected]>
Date: Mon, 26 Jan 2009 14:45:25 +0000
Switched off at 2300z to go to bed... I'm looking at code to generate a WSPR signal directly from a DDS/PIC combination controlled from GPS timing When done, it will be possible to leave a beacon run
/rsgb_lf_group-archives/html/rsgb_lf_group/2009-01/msg00468.html (14,559 bytes)


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