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Total 65 documents matching your query.

1. LF: RE: [rsgb_lf_group] RE: RE: 472kHz.org website (score: 1)
Author: James Cowburn <>
Date: Fri, 8 Apr 2016 10:28:14 +0100
Hi Rik Thanks for coming back to me on this. Yes indeed, it needs good regular contributions and updates from all those interested to keep it fresh. I think your offer of sending raw material to you
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-04/msg00080.html (45,412 bytes)

2. LF: RE: WSPRNET.org down? (score: 1)
Author: James Cowburn <>
Date: Sun, 17 Apr 2016 16:44:01 +0100
Often From: [mailto:] On Behalf Of Max IK0VVE Sent: 17 April 2016 09:03 To: Subject: LF: WSPRNET.org
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-04/msg00228.html (12,807 bytes)

3. RE: LF: Earth modes and ebnaut? (score: 1)
Author: James Cowburn <>
Date: Thu, 2 Jun 2016 21:50:27 +0100
They weren't overly concerned when some of us were trying with normal rf transmission. We had to liaise with the team of storm watchers at the met office but it was all very relaxed Jim G7NKS From: o
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00013.html (16,457 bytes)

4. RE: LF: last 23 Hr 136 op32 (score: 1)
Author: James Cowburn <>
Date: Mon, 15 Aug 2016 08:28:03 +0100
Makes my "self telescoping" (poorly taped!) 12m fibreglass pole seem positively mundane! Starts out as a "temporary lash up" and rapidly assumes permanence!! Until the rain and UV get the better of t
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-08/msg00088.html (13,064 bytes)

5. RE: LF: RE: sensors that predict when the Northern Lights will be visible in the UK. (score: 1)
Author: James Cowburn <>
Date: Fri, 26 Aug 2016 05:55:23 +0000
Trim grass Or you have to turn off the air defence radar so the Captain can use the satellite phone (HMS Sheffield 1982) With best regards Jim Dr. Jim Cowburn G7NKS From: owner-
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-08/msg00143.html (33,356 bytes)

6. LF: good night on MF WSPR @G7NKS 1933km @ 50mW erp - winter plans (score: 1)
Author: James Cowburn <>
Date: Sun, 25 Sep 2016 07:11:19 +0000
Prop'n seems to be improving. Iceland and Finland last night on MF, nearly 2000km on about 50mW ERP. Roll on the cold dark nights! Simple set up @ G7NKS IC706mk2g via current meter and home brew 7 po
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-09/msg00180.html (23,162 bytes)

7. RE: LF: good night on MF WSPR @G7NKS 1933km @ 50mW erp - winter plans (score: 1)
Author: James Cowburn <>
Date: Sun, 25 Sep 2016 10:00:15 +0000
Hi Andy Add these in and see what it comes up with:- 1. Vertical antenna in open and 15m away from house and near trees. 30m top wire runs in an East-West orientation heading West away from vertical
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-09/msg00182.html (45,047 bytes)

8. RE: LF: good night on MF WSPR @G7NKS 1933km @ 50mW erp - winter plans (score: 1)
Author: James Cowburn <>
Date: Sun, 25 Sep 2016 11:53:20 +0000
Hi Stefan see my comments below appended With best regards Jim Dr. Jim Cowburn G7NKS IO92ub From: owner- [mailto:owner- ] On Behalf Of DK7FC
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-09/msg00186.html (23,527 bytes)

9. RE: LF: MF Wspr (score: 1)
Author: James Cowburn <>
Date: Tue, 27 Sep 2016 21:37:29 +0000
Nice radio With best regards Jim Dr. Jim Cowburn Tel. 01767 600522 Mob. 07967 300152 https://uk.linkedin.com/in/jamescowburn This email is sent from the account of Dr. James C
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-09/msg00199.html (11,766 bytes)

10. RE: LF: good night on MF WSPR @G7NKS 1933km @ 50mW erp - winter plans (score: 1)
Author: James Cowburn <>
Date: Sat, 1 Oct 2016 09:00:01 +0000
Makes a change!! J With best regards Jim Dr. Jim Cowburn G7NKS IO92ub From: [mailto:] On Behalf Of Roger Lapthorn Sent: 30 Septemb
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00000.html (29,287 bytes)

11. LF: G3XIZ new email via PM please (score: 1)
Author: James Cowburn <>
Date: Sat, 1 Oct 2016 18:55:02 +0000
EOM With best regards Jim Dr. Jim Cowburn G7NKS IO92ub
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00004.html (11,616 bytes)

12. LF: handy spreadsheet from Stefan (score: 1)
Author: James Cowburn <>
Date: Sat, 1 Oct 2016 18:57:47 +0000
Hi all, Attached is a handy spreadsheet that Stefan sent to me a few years back. Most of us will already have something similar but if not, then here you go. I've modded it a bit and played with it s
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00005.html (13,285 bytes)

13. LF: interfacing tips for audio amps courtesy John and Jay in the US - 472/137 (score: 1)
Author: James Cowburn <>
Date: Sat, 1 Oct 2016 19:10:12 +0000
Hi all John sent me over this sketch of how best to interface my 706 to a Hafler audio amp as well as some schematics from their excellent website on the subject http://www.w1vd.com/page21.html http:
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00006.html (17,419 bytes)

14. LF: running WSPR now on 474.2. approx 20mW erp. (score: 1)
Author: James Cowburn <>
Date: Sat, 1 Oct 2016 19:19:35 +0000
So far have been seen out to 1027 km by DH5RAE, 899km by DL6RCN and 807km by LA3EQ. Could do with the Greek chap coming back on air as he was 2000km + from me in IO92ub and I think there's enough hea
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00007.html (14,173 bytes)

15. RE: LF: interfacing tips for audio amps courtesy John and Jay in the US - 472/137 (score: 1)
Author: James Cowburn <>
Date: Sat, 1 Oct 2016 20:53:57 +0000
Hi Mal I do indeed have a decca unit with 3 onboard 5501s and 2 spare 5501s and a home brewed 5501 test rig. I bought it all in Dec. 2009 from the SK sale of the late great G3AQC along with a Decca v
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00010.html (31,034 bytes)

16. RE: LF: running WSPR now on 474.2. approx 20mW erp. (score: 1)
Author: James Cowburn <>
Date: Sun, 2 Oct 2016 08:25:33 +0000
Hi Mal, must be my rubbish aerial! It's only 10m/30m L and I have noisy laptop psus which also degrades rx perf so I'm a crocodile with small teeth! If I can find quieter psus and get that hafler goi
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00013.html (25,126 bytes)

17. LF: RE: MF WSPR RDF (score: 1)
Author: James Cowburn <>
Date: Wed, 5 Oct 2016 05:08:59 +0000
Damn!! I missed it!! With best regards Jim Dr. Jim Cowburn Tel. 01767 600522 Mob. 07967 300152 https://uk.linkedin.com/in/jamescowburn This email is sent from the account of D
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00060.html (12,425 bytes)

18. RE: ULF: A new step on the large ULF coil... (score: 1)
Author: James Cowburn <>
Date: Sat, 8 Oct 2016 15:01:09 +0000
Wow! That's a coil!!! With best regards Jim Dr. Jim Cowburn Tel. 01767 600522 Mob. 07967 300152 mailto: https://uk.linkedin.com/in/jamescowburn https://
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00077.html (24,553 bytes)

19. LF: WSPRing on 137 with new Hafler amp set up (score: 1)
Author: James Cowburn <>
Date: Wed, 19 Oct 2016 17:59:55 +0000
Hi All, I'm giving my new hafler audio amp set up a try out on 137 WSPR. IC706mk2G as an exciter (puts out about 100uW on 137), feeding into 1.5W broadband amp off ebay as per Dave Pick's article in
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00230.html (15,597 bytes)

20. LF: RE: WSPRing on 137 with new Hafler amp set up - had to go QRT 30 mins later due to QR-XYL es QR-Kids!! Internet being disrupted! Who pays the bills?? (score: 1)
Author: James Cowburn <>
Date: Thu, 20 Oct 2016 07:54:10 +0000
HI all Apologies but I was "told" to go QRT by the real masters of the station. Apparently my new QRO output on 137 was dropping the cheap BT router (need a new metal cased one with external antennae
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-10/msg00232.html (26,416 bytes)


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