ZS/FR 13/14 April 2010 - 2m

Opening of 13/14 April 2010 - 2m - ZS2/ZS5

The general situation :

WX was looking like a cold front was reaching us (no mention on this on the surface map). Low altitude black clouds at 1200z already on 13/04.
During qso with Glenn, i had rain, very little little drops. Wind from South to South East, and T° was lower than usual.

1-AIS RX

ais-fr-2010-04-13-1730z

ais-zs-2010-04-13-1730z

ais-FR-2010-04-14-1750z

ais-zs-2010-04-14-1750z

ais-zs-2010-04-14-1850z

-------------------------------------------------------------------------------------------------------------------------------------------------------------

2-The Hepburn predictions

3-The radiosounding data

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

Durban 13/04/2010 00z	South 5R8 13/04/2010 00z	FR 13/04/2010 00z	PE 13/04/2010 00z
HEIGHT DT/DZ TDIFF CRITICAL INVERSION 400. 0.006 1.1 622. 0.006 1.4 851. 0.005 1.2 1086. 0.006 1.4 1573. 0.010 5.0 ** 2090. 0.010 5.4 2637. 0.006 3.5 3216. 0.004 2.1 3829. 0.006 3.4 4486. 0.007 4.6 5190. 0.004 2.6 5947. 0.002 1.5 6765. 0.003 2.2 7655. 0.003 2.3 8636. 0.002 1.9 9732. 0.004 4.4 10982. 0.002 2.7 12442. 0.004 5.7 14240. 0.007 13.4 16642. 0.010 23.9 20732. 0.026 26536. 0.034 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 394. 0.000 0.0 616. 0.000 0.0 843. 0.001 0.2 1075. 0.001 0.3 1553. 0.002 0.9 2056. 0.013 6.4 ** 2592. 0.010 5.5 3163. 0.006 3.7 3770. 0.007 4.1 4418. 0.004 2.3 5112. 0.003 2.1 5857. 0.003 2.0 6664. 0.004 3.3 7546. 0.004 3.6 8520. 0.003 3.2 9612. 0.003 3.7 10859. 0.004 5.3 12322. 0.004 6.5 14127. 0.007 12.2 16551. 0.012 29.7 20682. 0.026 26525. 0.032 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 349. 0.000 0.1 576. 0.004 0.9 807. 0.003 0.7 1043. 0.003 0.7 1531. 0.003 1.7 2043. 0.004 2.1 2582. 0.005 2.5 3153. 0.006 3.4 ** 3761. 0.010 6.4 4412. 0.003 2.0 5108. 0.003 2.0 5855. 0.003 2.5 6664. 0.004 2.9 7547. 0.003 2.8 8525. 0.005 4.5 9621. 0.004 4.0 10874. 0.004 5.0 12340. 0.003 3.7 14125. 0.006 9.9 16532. 0.012 28.6 20643. 0.026 26474. 0.033 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 352. 0.024 5.3 ** 582. 0.017 3.9 818. 0.009 2.2 1060. 0.004 1.0 1560. 0.002 1.2 2083. 0.002 1.1 2633. 0.003 1.5 3213. 0.006 3.4 3832. 0.008 5.2 4495. 0.004 2.5 5201. 0.001 0.8 5957. 0.002 1.4 6773. 0.002 1.6 7661. 0.002 1.9 8640. 0.003 3.2 9736. 0.003 3.2 10978. 0.002 1.9 12428. 0.003 5.1 14221. 0.010 17.5 16645. 0.012 28.6 20744. 0.024 98.6 26531. 0.034 **
Durban 13/04/2010 12z	South 5R8 13/04/2010 12z	FR 13/04//2010 12z	PE 13/04/2010 12z
HEIGHT DT/DZ TDIFF CRITICAL INVERSION 370. -.001 -0.2 597. 0.002 0.3 829. 0.005 1.2 1068. 0.013 3.0 ** 1564. 0.009 4.2 2087. 0.006 3.0 2638. 0.004 2.4 3221. 0.004 2.6 3839. 0.005 2.8 4498. 0.005 3.1 5203. 0.002 1.6 5959. 0.003 2.1 6776. 0.002 1.9 7666. 0.002 2.0 8646. 0.003 2.8 9741. 0.002 2.4 10982. 0.002 2.3 12434. 0.005 7.0 14238. 0.009 15.9 16652. 0.010 24.2 20717. 0.025 26535. 0.034 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 390. 0.000 0.0 613. 0.000 0.1 841. 0.000 0.0 1072. 0.001 0.3 1551. 0.005 2.4 ** 2058. 0.013 6.6 2598. 0.009 5.0 3171. 0.005 2.9 3780. 0.004 2.7 4430. 0.006 3.7 5125. 0.004 2.9 5875. 0.004 3.1 6687. 0.004 3.1 7575. 0.004 3.4 8554. 0.002 1.7 9647. 0.003 2.9 10886. 0.001 1.8 12339. 0.006 9.0 14154. 0.010 17.6 16587. 0.009 22.1 20677. 0.026 26510. 0.033 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 352. 0.001 0.1 578. 0.002 0.3 809. 0.004 0.8 1045. 0.004 1.0 1533. 0.005 2.3 2047. 0.005 2.6 ** 2588. 0.005 2.5 3160. 0.006 3.4 3768. 0.008 5.1 4418. 0.004 2.6 5114. 0.003 1.9 5862. 0.004 3.1 6673. 0.004 3.6 7561. 0.003 2.9 8541. 0.004 4.1 9642. 0.004 4.0 10895. 0.002 2.9 12353. 0.003 3.7 14142. 0.007 12.2 16548. 0.012 28.0 20652. 0.026 26460. 0.035 **	EIGHT DT/DZ TDIFF CRITICAL INVERSION 338. 0.006 1.3 571. 0.005 1.1 809. 0.004 0.8 1053. 0.003 0.6 1555. 0.002 0.8 2080. 0.001 0.5 2630. 0.002 1.1 3210. 0.003 2.0 3824. 0.006 3.7 ** 4483. 0.005 3.6 5186. 0.002 1.7 5941. 0.002 1.6 6756. 0.002 1.8 7643. 0.002 2.0 8622. 0.004 3.5 9717. 0.003 3.3 10961. 0.001 1.2 12406. 0.004 5.4 14199. 0.010 18.1 16637. 0.012 29.6 20740. 0.023 92.4 26515. 0.035 **
Durban 13/04/2010 18z	South 5R8 13/04//2010 18z	FR 13/04/2010 18z	PE 13/04/2010 18z
HEIGHT DT/DZ TDIFF CRITICAL INVERSION 373. 0.010 1.6 599. 0.008 1.7 832. 0.010 2.3 ** 1069. 0.010 2.4 1566. 0.010 5.1 2089. 0.006 3.0 2641. 0.004 2.1 3223. 0.003 2.0 3840. 0.005 3.0 4499. 0.005 3.4 5203. 0.002 1.4 5959. 0.003 2.4 6776. 0.002 2.0 7667. 0.003 2.5 8648. 0.002 2.2 9743. 0.002 2.4 10984. 0.001 1.8 12434. 0.005 6.5 14236. 0.009 16.8 16658. 0.011 25.6 20731. 0.024 95.8 26548. 0.035 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 398. 0.000 0.0 622. 0.000 0.0 849. 0.000 0.0 1081. 0.001 0.2 1560. 0.007 3.5 ** 2070. 0.015 7.6 2611. 0.005 2.7 3184. 0.004 2.5 3792. 0.006 3.7 4442. 0.007 4.6 5142. 0.006 3.9 5895. 0.003 2.4 6710. 0.002 1.9 7598. 0.002 2.1 8577. 0.003 3.0 9669. 0.002 2.2 10910. 0.003 3.3 12364. 0.005 6.7 14176. 0.010 18.8 16605. 0.009 22.7 20697. 0.025 26523. 0.033 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 360. 0.000 0.0 586. 0.001 0.1 816. 0.002 0.6 1051. 0.004 1.0 1538. 0.006 2.9 ** 2051. 0.006 3.1 2591. 0.005 2.7 3163. 0.008 4.5 3772. 0.005 3.0 4420. 0.004 2.5 5114. 0.004 2.7 5860. 0.004 2.7 6670. 0.004 3.6 7556. 0.003 3.0 8534. 0.004 3.5 9630. 0.003 3.3 10879. 0.004 5.0 12346. 0.005 6.9 14150. 0.006 10.4 16572. 0.012 28.3 20657. 0.025 26496. 0.034 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 341. 0.015 3.3 ** 572. 0.011 2.5 809. 0.006 1.5 1052. 0.003 0.8 1554. 0.002 1.2 2079. 0.002 1.0 2629. 0.002 0.9 3209. 0.003 1.5 3823. 0.006 3.7 4480. 0.005 3.4 5183. 0.003 2.1 5937. 0.002 1.7 6751. 0.002 1.3 7638. 0.003 2.9 8616. 0.003 2.7 9706. 0.001 1.5 10941. 0.001 1.8 12386. 0.006 8.8 14184. 0.009 16.3 16627. 0.012 28.7 20743. 0.024 97.5 26534. 0.033 **
Durban 14/04/2010 00z	South 5R8 14/04/2010 00z	FR 14/04/2010 00z	PE 14/04//2010 00z
HEIGHT DT/DZ TDIFF CRITICAL INVERSION 356. 0.022 3.1 ** 584. 0.012 2.7 816. 0.012 2.9 1056. 0.012 2.8 1556. 0.009 4.3 2081. 0.004 2.1 2634. 0.003 1.8 3217. 0.003 2.0 3835. 0.005 3.0 4494. 0.004 2.5 5197. 0.002 1.6 5952. 0.003 2.3 6768. 0.002 1.7 7657. 0.003 2.4 8637. 0.002 2.3 9731. 0.003 2.8 10971. 0.001 1.4 12418. 0.005 6.9 14218. 0.010 17.7 16645. 0.011 26.2 20729. 0.024 96.9 26508. 0.033 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 392. 0.000 -0.1 615. 0.000 0.1 843. 0.000 0.1 1075. 0.001 0.3 1555. 0.007 3.6 ** 2065. 0.013 6.7 2605. 0.004 2.3 3177. 0.006 3.7 3786. 0.009 5.3 4439. 0.005 3.2 5139. 0.005 3.2 5893. 0.004 2.8 6708. 0.002 1.6 7596. 0.002 2.1 8574. 0.003 2.6 9665. 0.002 2.6 10906. 0.002 2.3 12358. 0.006 9.0 14170. 0.009 15.7 16597. 0.011 26.1 20681. 0.025 26486. 0.033 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 358. 0.000 0.0 583. 0.000 0.1 813. 0.001 0.2 1047. 0.003 0.8 1532. 0.007 3.4 ** 2044. 0.007 3.8 2584. 0.005 2.8 3155. 0.006 3.2 3762. 0.005 2.9 4409. 0.005 3.2 5102. 0.004 2.6 5848. 0.004 2.7 6658. 0.004 3.4 7543. 0.005 4.1 8524. 0.003 3.3 9619. 0.002 2.6 10868. 0.004 5.6 12339. 0.005 8.0 14151. 0.006 10.9 16574. 0.010 24.0 20652. 0.026 26448. 0.033 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 335. 0.011 2.5 ** 565. 0.012 2.8 802. 0.010 2.3 1043. 0.007 1.8 1546. 0.003 1.7 2072. 0.001 0.7 2623. 0.001 0.5 3201. 0.001 0.7 3814. 0.005 3.3 4468. 0.005 3.4 5168. 0.004 2.8 5921. 0.002 1.7 6734. 0.002 1.8 7619. 0.003 2.3 8595. 0.002 2.3 9683. 0.002 2.1 10918. 0.003 3.9 12370. 0.006 8.3 14177. 0.009 16.3 16620. 0.011 27.2 20737. 0.024 99.2 26503. 0.033 **
Durban 14/04/2010 12z	South 5R8 14/04/2010 12z	FR 04/04/2010 12z	PE 14/04/2010 12z
HEIGHT DT/DZ TDIFF CRITICAL INVERSION 333. 0.007 0.8 563. 0.005 1.2 800. 0.009 2.0 ** 1041. 0.008 2.0 1543. 0.006 2.8 2069. 0.003 1.4 2623. 0.002 1.3 3205. 0.003 1.8 3822. 0.004 2.7 4480. 0.003 2.3 5181. 0.002 1.7 5936. 0.003 2.6 6752. 0.003 2.1 7641. 0.002 2.1 8620. 0.003 2.6 9713. 0.002 1.9 10951. 0.002 2.2 12399. 0.004 5.7 14190. 0.010 17.3 16624. 0.012 29.4 20707. 0.023 92.1 26469. 0.034 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 380. 0.000 0.0 604. 0.000 0.0 833. 0.000 0.1 1066. 0.001 0.2 1548. 0.007 3.6 ** 2060. 0.012 6.0 2602. 0.007 4.0 3178. 0.008 4.5 3793. 0.008 5.2 4450. 0.003 2.1 5153. 0.004 2.8 5909. 0.001 1.0 6724. 0.003 2.3 7612. 0.002 2.1 8590. 0.002 1.9 9679. 0.002 2.0 10917. 0.003 3.2 12365. 0.004 6.4 14165. 0.009 16.5 16590. 0.011 27.7 20668. 0.024 99.0 26456. 0.033 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 349. 0.000 0.1 574. 0.000 0.1 804. 0.000 0.1 1038. 0.001 0.2 1522. 0.005 2.2 2032. 0.011 5.8 ** 2575. 0.007 4.1 3149. 0.004 2.3 3758. 0.006 3.7 4410. 0.006 4.1 5109. 0.004 2.7 5861. 0.004 2.8 6676. 0.004 3.1 7565. 0.001 0.8 8540. 0.002 1.9 9629. 0.004 3.9 10878. 0.005 6.0 12345. 0.006 8.2 14157. 0.007 12.5 16579. 0.009 21.0 20635. 0.025 26426. 0.034 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 318. 0.006 1.4 548. 0.009 2.1 ** 783. 0.010 2.3 1025. 0.009 2.1 1526. 0.005 2.3 2052. 0.002 1.1 2603. 0.001 0.4 3181. 0.001 0.4 3792. 0.001 0.6 4440. 0.005 3.4 5135. 0.006 3.9 5884. 0.004 2.8 6696. 0.003 2.7 7581. 0.002 1.9 8556. 0.003 3.3 9648. 0.003 3.1 10892. 0.003 4.2 12349. 0.004 5.2 14150. 0.010 18.5 16592. 0.011 26.1 20705. 0.023 96.0 26461. 0.033 **
Durban 14/04/2010 18z	South 5R8 14/04/2010 18z	FR 14/04/2010 18z	PE 14/04/2010 18z
HEIGHT DT/DZ TDIFF CRITICAL INVERSION 338. 0.037 4.7 ** 567. 0.012 2.8 803. 0.009 2.2 1045. 0.008 2.0 1546. 0.006 2.9 2072. 0.003 1.8 2624. 0.003 1.6 3207. 0.003 1.7 3824. 0.004 2.4 4480. 0.003 1.8 5180. 0.002 1.6 5932. 0.004 3.0 6747. 0.002 2.0 7635. 0.003 2.6 8613. 0.002 2.3 9705. 0.003 2.9 10949. 0.003 3.6 12402. 0.003 3.9 14190. 0.010 17.4 16629. 0.012 29.4 20708. 0.023 93.2 26474. 0.034 **	EIGHT DT/DZ TDIFF CRITICAL INVERSION 386. 0.000 0.0 611. 0.001 0.1 839. 0.000 0.1 1073. 0.002 0.5 1556. 0.009 4.1 ** 2068. 0.011 5.5 2610. 0.008 4.4 3188. 0.008 4.6 3804. 0.008 4.8 4463. 0.004 2.3 5167. 0.004 2.6 5923. 0.001 0.7 6738. 0.003 2.6 7628. 0.002 1.8 8605. 0.002 1.8 9695. 0.002 2.0 10933. 0.003 3.6 12382. 0.004 6.3 14183. 0.009 16.9 16610. 0.011 25.8 20682. 0.024 98.3 26451. 0.034 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 371. 0.000 0.1 596. 0.000 0.1 826. 0.000 0.1 1060. 0.001 0.1 1543. 0.003 1.5 2051. 0.010 5.3 ** 2591. 0.009 4.9 3165. 0.006 3.2 3775. 0.007 4.5 4428. 0.005 3.4 5128. 0.004 3.1 5883. 0.005 4.0 6702. 0.002 1.7 7591. 0.001 1.2 8568. 0.002 1.5 9658. 0.003 3.0 10900. 0.004 4.7 12365. 0.007 10.3 14183. 0.007 12.5 16598. 0.008 19.7 20653. 0.026 26433. 0.033 **	HEIGHT DT/DZ TDIFF CRITICAL INVERSION 335. 0.007 1.4 560. 0.011 2.6 ** 791. 0.013 3.0 1029. 0.015 3.6 1526. 0.011 5.4 2051. 0.004 1.9 2602. 0.001 0.7 3181. 0.001 0.3 3791. 0.000 0.2 4437. 0.004 2.4 5129. 0.006 3.9 5876. 0.005 3.5 6685. 0.003 2.6 7568. 0.003 2.5 8541. 0.003 2.9 9632. 0.004 4.7 10877. 0.003 3.3 12330. 0.003 4.6 14139. 0.012 22.6 16587. 0.009 22.3 20699. 0.024 97.7 26457. 0.033 **

5-The surface pressure chart

6-The visible map

7-The QSO's

13/04 14z: i alterted the ZS list to pay attention to good cdx on the East coast.
13/04 1640z: Glenn ZS2GK sent me email with decoded transmission of my beacon at 1640z.
13/04 17h22z: ZS2GK and FR5DN completed on JT65b, strongest signal at -3db. We also made it on SSB.
Glenn was with 51-52 here, and he gave me 55. There was quite some qsb on the opening.
Derek ZS5Y was having no copy on 2m as well as on 70cms at this time.
Andre ZS2ACP called but no copy from him.
13/04 1930z: Tried a cw qso with Glenn, he was 529 here, but we did not complete. Next time.

Dave ZS5DJ was also on qrg and monitored the qrg :

"Left my radio on all night and from 20.58z to 21.26z and again from 22.56 right through to 03.22z the beacon came through. I don't know if Phil turned off his beacon after that as I don't get any decode now.
Best read was -6."

2m rx at ZS5Y side

13-14 April 2010

This is just to illustrate the signal levels
From ZS5Y:

Hi Phil,

Here is some decodes on 2m from your JT65B  beacon. Best -4  
Nil copied on 70cm

223400  5  -24 -1.1    5  2 *      CQ FR5DN LG78             1   0

223600  4  -23 -1.1    5  3 *      CQ FR5DN LG78             1   0 
223800  4  -22 -1.1    3  3 *      CQ FR5DN LG78             1   0  
231200  2  -28 -1.5    8  3 *      CQ FR5DN LG78             1   0 
231600  6  -22 -1.4    5  3 *      CQ FR5DN LG78             1   0  
233000  4  -23 -1.4    5  2 *      CQ FR5DN LG78             1   0  
233400  2  -26 -1.4    8  3 *      CQ FR5DN LG78             1   0 
234000  6  -20 -1.3    5  4 *      CQ FR5DN LG78             1   0  
234800  1  -24 -1.6    3  2 *      CQ FR5DN LG78             1   0 
235400  6  -17 -1.4    5  4 *      CQ FR5DN LG78             1   0

235600  1  -25 -1.5    5  2 *      CQ FR5DN LG78             1   0 
001200  1  -22 -1.5    3  3 *      CQ FR5DN LG78             1   0 
002600  5  -24 -1.7    3  3 *      CQ FR5DN LG78             1   0 
003400 12  -14 -1.9    3  2 *      CQ FR5DN LG78             1   0 
003800 12   -8 -1.5    3  3 *      CQ FR5DN LG78             1   0 
004000  8   -9 -1.7    3  5 *      CQ FR5DN LG78             1   0 
004200  9   -4 -1.5    3  4 *      CQ FR5DN LG78             1   0 
004600  9   -4 -1.7    5  4 *      CQ FR5DN LG78             1   0

004800  8   -5 -1.7    3  4 *      CQ FR5DN LG78             1   0 
005200  8   -5 -1.8    3  5 *      CQ FR5DN LG78             1   0 
005400 12   -9 -1.9    5  4 *      CQ FR5DN LG78             1   0 
005600  5   -9 -1.9    3  5 *      CQ FR5DN LG78             1   0 
010400  0  -18 -1.8    3  3 *      CQ FR5DN LG78             1   0 
010600 11   -7 -1.8    5  3 *      CQ FR5DN LG78             1   0 
010800  3  -11 -1.8    3  3 *      CQ FR5DN LG78             1   0 
011000 13  -10 -1.8    5  4 *      CQ FR5DN LG78             1   0 
011200  3  -19 -1.9    3  3 *      CQ FR5DN LG78             1   0 
011600  5   -9 -1.9    3  3 *      CQ FR5DN LG78             1   0

011800 12   -7 -1.9    5  2 *      CQ FR5DN LG78             1   0 
012000  4  -20 -1.9    3  3 *      CQ FR5DN LG78             1   0  
012400  4   -8 -1.9    5  3 *      CQ FR5DN LG78             1   0 
013000 11   -5 -1.9    5  3 *      CQ FR5DN LG78             1   0 
013200  3   -6 -1.9    5  4 *      CQ FR5DN LG78             1   0 
013400  3   -5 -1.9    5  4 *      CQ FR5DN LG78             1   0 
013600  4   -7 -1.9    5  4 *      CQ FR5DN LG78             1   0 
013800  5   -8 -1.9    5  3 *      CQ FR5DN LG78             1   0

014000  5  -11 -1.9    3  5 *      CQ FR5DN LG78             1   0 
014200  4  -11 -1.9    5  2 *      CQ FR5DN LG78             1   0 
015000 12  -11 -1.9    3  4 *      CQ FR5DN LG78             1   0 
015800  2  -27 -1.9    5  3 *      CQ FR5DN LG78             1   0 
023600  4  -16 -1.9    5  3 *      CQ FR5DN LG78             1   0 
024800  0  -23 -1.9    3  4 *      CQ FR5DN LG78             1   0 
                                  
Off to work now last decode before I leave 
051000  1  -27 -0.3   -3  3 *      CQ FR5DN LG78


070200  4  -25 -0.8   13  4 *      CQ FR5DN LG78
73's 
Derek Gravett
Zs5y

2 DECODES very week stil

170800  0  -28 -0.6  -40 16 *      CQ FR5DN LG78             0  10 
171200  1  -28 -0.6  -40  3 *      CQ FR5DN LG78

14/04 1739z : another qso was made with Glenn ZS2GK.

Meteor Scatter sign??

During the opening of 13/04, ZS2GK, ZS5Y and myself, we have seen some pings...
So on 14/04 we paid more attention to it, and ZS2GK sent me some screenshots of what he was getting.
We decided to go for FSK441 and made some tests.
At the time the pings were received, there was no tropo signal anymore. Maybe they were not purely MS pings.
Maybe they were MS pings still helped by some tropo enhancement. But we will have to try next shower.

On my side i had some power lines qrn, killing my rx , but even if no decode, i could hear pings. I have recorded the audio files and will have to try decoding further.

See below.

Hi Phil,

Your beacon is still getting here albeit very intermittently but still getting some good MS Pings during your TX sequence.
See attacked picture.

-------------------------------------

In FSK 2nd
210230 16.2  140  5 26 -107     5TN 27 ZS2GK 3723?JHU

Derek Gravett
Zs5y

-------------------------------------

Again from ZS2GK

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