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Opening of 18-09-2011 -  ZS5Y - FR5DN 2m  qso




The general situation :

1-AIS RX  



FR-ais-coverage-2011-09-18-to-19-12z.jpg FR-ais-coverage-2011-09-19-to-20-14z.jpg


FR-graphstation-starting-2011-09-18-16z.png




2-The Hepburn predictions  








3-The radiosounding data (PREDICTED DATA
from NOAA Air Resources Laboratory)






68588-DURBAN-2011-09-17-12Z_profile.gif SOUTH-5R8-2011-09-17-12Z.gif 61980-SAINT-DENIS-FR-2011-09-17-12Z_profile.gif



68588-DURBAN-2011-09-18-12Z_profile.gif SOUTH-5R8-2011-09-18-12Z.gif 61980-SAINT-DENIS-FR-2011-09-18-12Z_profile.gif



68588-DURBAN-2011-09-19-12Z_profile.gif SOUTH-5R8-2011-09-19-12Z.gif 61980-SAINT-DENIS-FR-2011-09-19-12Z_profile.gif




4-The predicted data from NOAA Air Resources Laboratory - GDAS1 Profile


 HEIGHT   DT/DZ TDIFF CRITICAL INVERSION
368. 0.003 0.7
591. 0.008 1.9
820. 0.011 2.4 ****
1055. 0.011 2.5 ****
1544. 0.004 1.8
2056. 0.002 0.9
2592. 0.003 1.7
3158. 0.003 1.6
3756. 0.003 1.5
4391. 0.003 2.0
5071. 0.005 3.5 ****
5807. 0.006 4.2 ****
6605. 0.004 2.9
7478. 0.003 2.5
8440. 0.003 2.6
9513. 0.002 2.4
10732. 0.003 3.9
12173. 0.008 11.3 ****
13973. 0.010 18.1 ****
16441. 0.015 36.5 ****
20669. 0.025 **** ****
26557. 0.032 **** ****

 HEIGHT   DT/DZ TDIFF CRITICAL INVERSION
392. 0.000 0.0
613. 0.000 -0.1
838. 0.001 0.1
1067. 0.001 0.2
1541. 0.009 4.1 ****
2046. 0.014 6.9 ****
2579. 0.001 0.8
3141. 0.004 2.2
3736. 0.003 1.6
4368. 0.003 1.7
5043. 0.003 2.0
5767. 0.002 1.5
6551. 0.005 3.5
7414. 0.008 6.7 ****
8376. 0.006 5.3 ****
9459. 0.006 6.0 ****
10709. 0.007 9.1 ****
12194. 0.006 9.4 ****
14018. 0.005 9.9 ****
16470. 0.012 29.3 ****
20666. 0.026 **** ****
26538. 0.031 **** ****
 HEIGHT   DT/DZ TDIFF CRITICAL INVERSION
365. 0.001 0.2
588. 0.002 0.4
816. 0.002 0.5
1049. 0.002 0.4
1530. 0.004 2.1
2035. 0.006 3.2 ****
2569. 0.005 2.8 ****
3132. 0.005 2.6
3733. 0.009 5.2 ****
4377. 0.007 4.8 ****
5070. 0.006 4.3 ****
5821. 0.006 4.8 ****
6640. 0.006 5.2 ****
7539. 0.005 4.2
8533. 0.003 3.3
9646. 0.003 3.6
10912. 0.002 2.5
12387. 0.002 3.6
14183. 0.005 8.1
16552. 0.009 21.7 ****
20657. 0.029 **** ****
26531. 0.032 **** ****
68588-DURBAN-2011-09-17-12Z SOUTH-5R8-2011-09-17-12Z 61980-SAINT-DENIS-FR-2011-09-17-12Z
 HEIGHT   DT/DZ TDIFF CRITICAL INVERSION
266. 0.021 2.7 ****
498. 0.004 0.8
735. 0.002 0.4
977. 0.001 0.2
1477. 0.001 0.3
1998. 0.001 0.7
2546. 0.003 1.9
3122. 0.002 1.4
3733. 0.003 2.1
4382. 0.003 2.2
5076. 0.003 2.2
5822. 0.002 1.8
6626. 0.002 1.5
7503. 0.004 3.1
8473. 0.004 3.8
9559. 0.004 3.8
10798. 0.003 3.4
12249. 0.004 6.0
14038. 0.009 15.4 ****
16461. 0.011 26.5 ****
20635. 0.028 **** ****
26535. 0.031 **** ****
 HEIGHT   DT/DZ TDIFF CRITICAL INVERSION
378. 0.001 0.2
599. 0.001 0.1
824. 0.004 1.0
1056. 0.015 3.5 ****
1541. 0.011 5.4 ****
2051. 0.002 1.1
2587. 0.004 2.2
3153. 0.004 2.2
3753. 0.005 2.9
4395. 0.006 3.8 ****
5084. 0.005 3.5 ****
5827. 0.004 3.0
6632. 0.003 2.7
7511. 0.003 2.7
8481. 0.003 3.1
9565. 0.003 3.2
10802. 0.004 4.5
12262. 0.007 10.2 ****
14070. 0.007 13.4 ****
16499. 0.011 26.5 ****
20657. 0.027 **** ****
26519. 0.031 **** ****
 HEIGHT   DT/DZ TDIFF CRITICAL INVERSION
383. 0.000 -0.1
605. 0.000 0.0
831. 0.001 0.2
1062. 0.008 1.9
1542. 0.008 3.8 ****
2050. 0.008 4.1 ****
2586. 0.006 3.3 ****
3153. 0.005 2.7
3755. 0.004 2.4
4397. 0.006 3.5 ****
5087. 0.007 4.6 ****
5835. 0.006 4.2 ****
6647. 0.004 3.4
7536. 0.005 4.4
8526. 0.007 6.5 ****
9640. 0.004 4.0
10908. 0.002 3.0
12385. 0.002 2.7
14180. 0.005 9.3 ****
16556. 0.010 22.6 ****
20658. 0.028 **** ****
26490. 0.033 **** ****
68588-DURBAN-2011-09-18-12Z SOUTH-5R8-2011-09-18-12Z 61980-SAINT-DENIS-FR-2011-09-18-12Z
 HEIGHT   DT/DZ TDIFF CRITICAL INVERSION
371. 0.001 0.3
591. 0.001 0.2
815. 0.001 0.1
1043. 0.000 0.1
1513. 0.001 0.5
2006. 0.005 2.7 ****
2526. 0.006 3.2 ****
3079. 0.005 2.5
3664. 0.004 2.5
4287. 0.004 2.4
4956. 0.008 5.1 ****
5681. 0.006 4.4 ****
6470. 0.005 4.3 ****
7337. 0.006 4.8 ****
8298. 0.005 4.4
9377. 0.003 3.4
10606. 0.004 4.6
12060. 0.008 12.1 ****
13886. 0.010 18.7 ****
16362. 0.012 29.6 ****
20606. 0.027 **** ****
26496. 0.029 **** ****
 HEIGHT   DT/DZ TDIFF CRITICAL INVERSION
340. 0.013 2.8 ****
567. 0.009 2.0 ****
800. 0.004 1.0
1038. 0.003 0.6
1530. 0.002 1.0
2044. 0.002 0.9
2584. 0.003 1.6
3153. 0.004 2.4
3758. 0.006 3.4 ****
4405. 0.006 3.7 ****
5100. 0.005 3.6 ****
5848. 0.004 2.8
6659. 0.003 2.8
7544. 0.004 3.2
8523. 0.003 3.0
9617. 0.002 2.6
10856. 0.002 2.0
12305. 0.004 6.1
14091. 0.007 13.2 ****
16509. 0.013 31.1 ****
20653. 0.027 **** ****
26529. 0.030 **** ****
 HEIGHT   DT/DZ TDIFF CRITICAL INVERSION
391. 0.000 0.0
614. 0.000 0.0
840. 0.001 0.3
1071. 0.005 1.2
1553. 0.011 5.5 ****
2063. 0.008 4.0 ****
2601. 0.005 2.7 ****
3171. 0.006 3.4 ****
3777. 0.007 4.1 ****
4427. 0.006 3.8 ****
5123. 0.004 3.0
5874. 0.004 3.0
6686. 0.003 2.5
7575. 0.004 3.4
8558. 0.005 5.0 ****
9663. 0.004 3.9
10922. 0.003 4.0
12397. 0.003 5.0
14195. 0.004 7.9
16577. 0.010 23.4 ****
20669. 0.028 **** ****
26517. 0.032 **** ****
68588-DURBAN-2011-09-19-12Z SOUTH-5R8-2011-09-19-12Z 61980-SAINT-DENIS-FR-2011-09-19-12Z



Real data only available :

5R8

67197 FMSD Fort-Dauphin Observations at 12Z 17 Sep 2011

67197 FMSD Fort-Dauphin Observations at 00Z 18 Sep 2011.jpg
67197 FMSD Fort-Dauphin Observations at 12Z 18 Sep 2011.jpg 67197 FMSD Fort-Dauphin Observations at 00Z 19 Sep 2011.jpg
67197 FMSD Fort-Dauphin Observations at 12Z 19 Sep 2011.jpg

67197 FMSD Fort-Dauphin Observations at 12Z 20 Sep 2011.jpg
FR
61980 FMEE Saint-Denis Observations at 12Z 17 Sep 2011.jpg


61980 FMEE Saint-Denis Observations at 12Z 18 Sep 2011.jpg

61980 FMEE Saint-Denis Observations at 12Z 19 Sep 2011.jpg

61980 FMEE Saint-Denis Observations at 12Z 20 Sep 2011.jpg





5-The surface pressure chart





 



6-The visible maps







7-The QSO's

Tks to Derek, ZS5Y, who was on immediatly  after my email to the ZS list!

Thanks for QSO Phil, here is what I copied.


164400 14 -15 -0.1 135 1 * CQ FR5DN LG78 1 10
164500 0 -33 3.2 175 15
164600 14 -11 0.1 145 3 * CQ FR5DN LG78 1 10
164800 9 -11 0.2 153 3 # ZS5Y FR5DN LG78 OOO 1 10
165000 10 -16 168 3 RRR
165200 10 -20 185 2 73
165400 10 -17 204 3 73

Derek zs5y - 18 september 2011.

8-Some comments


Not very strong  opening, but  we were on at the right time.
On afternoon 19 september, 1240z, i could again rx 5R8 103Mhz FM inside the car. Perfect copy.
Had not the possibility to check the FM broadcast qrg before that.



Equipment at FR5DN :

On 2m:
In "beacon mode", 70-80w out into 17el F9FT-13dbd yagi at 6.5m above ground.
Old PC dedicated to the 2m station for digital modes and AIS receiver (modified FT-2500M).
For qso, i can use up to 120w out max in shack
Mast mounted LNA with BF981 feed through coax, no measurement on NF
.
Coax is a  low loss rigid coax  LCF12-50, with some ecoflex 10.
I use separate TX and RX lines, which make things much more flexible, RX line is standard RG-213.
RX is Kenwood R-5000.
TRX for beacon and qso is dedicated Kenwood TR-9000.

Again, these qso are in reach of medium to small stations for sure!

On 70cms:

I run a single 21 el yagi at 9.5m above ground.

Low loss coax, mixed length of hardline 7/8 and some length of lcf12-50 and LCF14-50.
Power was 40w in-shack.
Mast mounted LNA 33db gain, 0.3db NF. Loss before LNA is around 0.9db!
RX is separated rx : LT70s converter with FT-990, 28Mhz IF.


The antennas used for the qsos:





Tks to All, and see you next opening !



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