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1. LF: w/e report 20/21 Feb 99 (score: 1)
Author: "Mike Dennison" <>
Date: Mon, 22 Feb 1999 12:04:09 +0100
A very busy weekend for me and very little time for radio. But . . . Spent some time on Friday evening trying to persuade my VFO to cover 73kHz. Having improved its stability on 136kHz by reducing th
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-02/msg00012.html (9,657 bytes)

2. Re: LF: PSK31 (score: 1)
Author: "Mike Dennison" <>
Date: Mon, 22 Feb 1999 12:28:16 +0100
The decision to try it or not would be (for *me*) a question of "is a linear amplifier required or not". I definitly will not build a linear PA on LF. I see that other hams have the same thoughts. Wo
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-02/msg00014.html (9,395 bytes)

3. LF: Linear amps (score: 1)
Author: "Mike Dennison" <>
Date: Mon, 22 Feb 1999 12:36:39 +0100
Hope this gets through - my last message to the group failed. On the subject of PSK31 and the need for linear amps, will a simple audio amp do the job? The BK Electronics amps should be linear over i
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-02/msg00015.html (8,060 bytes)

4. LF: w/e report 27/28 Feb (score: 1)
Author: "Mike Dennison" <>
Date: Mon, 01 Mar 1999 15:49:10 +0100
Saturday 27 February Heard: GW4ALG (579), HB9ASB (439), G4GVC (599), G6RO (549), G3YMC (429), G3YXM (599). Saw on Spectrogram screen: DF3LP ('O'), DJ8WL ('O'). No QSOs made. Sunday 28 February Heard
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00007.html (8,426 bytes)

5. Re: LF: HAARP Experiments this month. (score: 1)
Author: "Mike Dennison" <>
Date: Wed, 03 Mar 1999 10:49:36 +0100
UK amateurs may like to know that the April edition of Ham Radio Today magazine has a feature on the HAARP project. It is on sale on Wednesday 10 March. End of commercial. Wearing my day-job 'hat'..
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00015.html (9,172 bytes)

6. LF: Success with small antennas (score: 1)
Author: "Mike Dennison" <>
Date: Wed, 03 Mar 1999 10:50:03 +0100
First of all please let me introduce myself. My name is Des (M0AYF) and am currently a qrp H.F. operator (just a hint of qro :-) with an interest in L.F. I have only been on the mailing list for a fe
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00016.html (11,311 bytes)

7. LF: 73kHz (score: 1)
Author: "Mike Dennison" <>
Date: Wed, 03 Mar 1999 11:19:33 +0100
Sorry, I missed another 'first Tuesday' on 73kHz. This time my excuse is high winds which caused me to lower the antenna, and torrential rain which stopped me raising and re-tuning it. On the positiv
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00017.html (8,358 bytes)

8. LF: Weekend report 13/14 March (score: 1)
Author: "Mike Dennison" <>
Date: Mon, 08 Mar 1999 10:48:51 +0100
Yet another interesting weekend: Saturday 6 March Heard G4GVC (599), G3XTZ (5 9+10 9), G3YMC (529), G6RO (539), GW4ALG (559), PA0LQ (549). Saw on Spectrogram HB9ASB ('O') and DJ8WL ('O'). Had the new
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00039.html (8,954 bytes)

9. LF: Weekend report 13/14 March (score: 1)
Author: "Mike Dennison" <>
Date: Tue, 16 Mar 1999 10:51:03 +0100
Very little activity as I spent several pleasant days in Pembrokeshire (without a radio!) and travelled back on Sunday. On Sunday evening I heard, G3KEV (599) and PA0LQ (549). Saw HB9ASB ('0') on scr
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00106.html (8,588 bytes)

10. LF: Records (score: 1)
Author: "Mike Dennison" <>
Date: Wed, 17 Mar 1999 12:20:13 +0100
Firstly, congratulations to Peter, G3LDO, on greatly increasing the 73kHz one-way distance record with his transmission to Toni, HB9ASB. I have not yet calculated the distance but it must be 700km+ c
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00112.html (8,835 bytes)

11. LF: Records 2 (score: 1)
Author: "Mike Dennison" <>
Date: Wed, 17 Mar 1999 12:50:27 +0100
In my last message (Records) I congratulated G3LDO on his 73kHz record. I should also, of course, have congratulated Toni, HB9ASB, on his achievement in receiving Peter's signal, especially as Toni i
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00113.html (8,801 bytes)

12. LF: Activity week ending 21 Mar 99 (score: 1)
Author: "Mike Dennison" <>
Date: Mon, 22 Mar 1999 12:20:33 +0100
Tuesday 16 March Heard MM0ALM (439) for thje first time. No reply to my numerous calls. Also G8RW (439) and G4GVC (589) Wednesday 17 March Heard another new one: G3RXH (439). Also heard MM0ALM again
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00138.html (9,737 bytes)

13. LF: Activity week ending 21 Mar 99 (score: 1)
Author: "Mike Dennison" <>
Date: Mon, 22 Mar 1999 14:50:14 +0100
Tuesday 16 March Heard MM0ALM (439) for thje first time. No reply to my numerous calls. Also G8RW (439) and G4GVC (589) Wednesday 17 March Heard another new one: G3RXH (439). Also heard MM0ALM again
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00139.html (9,415 bytes)

14. Re: LF: RTTY signal around 137 (score: 1)
Author: "Mike Dennison" <>
Date: Thu, 25 Mar 1999 11:51:09 +0100
I heard this =very weak= on Sunday night. Not listened since. Yes, I have noticed it, too. I spent some time checking my antenna and matching arrangements as I thought I had a problem. But Tx curren
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00170.html (10,918 bytes)

15. Re: LF: 137 Carrier (score: 1)
Author: "Mike Dennison" <>
Date: Fri, 26 Mar 1999 11:21:08 +0100
The RTTY signal which has reappeared on or around 137kHz is the self same signal we were discussing in January and at various other times. It appears for a few days at a time and then disappears for
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00180.html (10,548 bytes)

16. LF: Weekend report 27-29 March (score: 1)
Author: "Mike Dennison" <>
Date: Mon, 29 Mar 1999 11:44:48 +0100
A quiet weekend for activity but some interesting signs that conditions were special: Friday 27 March Heard G6NB (579). Worked GW4ALG who was best signal yet at 58/99; gave me 569. Very good DX condi
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00201.html (9,539 bytes)

17. LF: GW3XDV/P (score: 1)
Author: "Mike Dennison" <>
Date: Mon, 29 Mar 1999 12:03:18 +0100
As usual, I will be operating from Pembrokeshire in south-west Wales from time to time over the Easter week. There is no formal schedule of operation but I will make every effort to be active on the
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-03/msg00202.html (9,403 bytes)

18. Re: LF: AF-filters and CW versus SlowCW (score: 1)
Author: "Mike Dennison" <>
Date: Thu, 1 Apr 1999 14:51:23 +0100
Today I've made some comparisons of different Audio-filter settings and CW against Slow CW. All test were made blind and under real band-noise conditions with the main receiving antenna (low noise,
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-04/msg00005.html (10,862 bytes)

19. LF: GW/P Activity 4 - 10 April (score: 1)
Author: "Mike Dennison" <>
Date: Mon, 12 Apr 1999 11:46:44 +0100
Spent an enjoyable and relaxing week at the /P QTH in SW Wales. Went out three times with the lF gear - note that because of some very close power lines I cannot operate from indoors. Easter Day 4 Ap
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-04/msg00061.html (10,182 bytes)

20. Re: LF: good signals - deaf receivers (score: 1)
Author: "Mike Dennison" <>
Date: Tue, 13 Apr 1999 17:31:16 +0100
HB9ASB wrote: Alarming is the increasing number of stations with good signals and mediocre receivers. It seems to me, that the real challenge on the LF band is the receiving part and I think there is
/rsgb_lf_group-archives/html/rsgb_lf_group/1999-04/msg00067.html (10,479 bytes)


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