Update Feb 5th 2019, 16:36 UTC: Feedback is overwhelming, will try to update this page as good as possible! Note that we will only receive signal strength value for 435-438 MHz, we will not be able to decode the data.
Update Feb 6th 2019, 08:49 UTC: Thanks for all the transmissions! For today, please look at the “reserved” spots below and try to find another frequency if you are in the same location/ area, as these guys might use the frequencies again. We might not be able to update the list below today, so please use the comment section to indicate planned use instead of sending emails. Good luck & have fun!
Update Feb 7th 2019, 19:17 UTC: Amazing work everyone! Experiment ends today at midnight (UTC), since the device is only recording until then. From tomorrow morning 9/10 UTC we record again, but we do not know yet if and when we can download the data.
We were just informed that it is likely that MarconISSta will be deinstalled on February 9th 2019. This is about three weeks earlier than expected, so we quickly have to finish any outstanding activities. Therefore: All Power To The ISS!
We want to invite everybody who owns a UHF antenna, preferably with an e.i.r.p. of more than 30 dBW (we did successful tests with 50W transmit power and 15 dBi antenna gain), to do transmissions to the ISS. These transmissions will be recorded by MarconISSta and we will publish the results here. This experiment is a nice way for you to test your antennas, while it is great for us and ARISS to evaluate the ARISS VHF/UHF antenna pattern.
Transmission Details:
- Trasmission time: Whenever you see the ISS between now and February 9th. Next time that we will downlink data is on February 8th, so if you want to make sure that you get the results early, transmit before February 8th.
- Frequency: 435-438 MHz. Please avoid 435.95 MHz in Europe (our reference frequency) and 436.5 MHz (center frequency of receiver)
- Power: Continuous transmission of carrier, we recommend an e.i.r.p. of more than 30 dBW. The reason for this is that MarconISSta integrates the transmissions, short bursts might get lost.
- Please do not use Doppler correction. We want to see the Doppler shift, it might help us to localize your transmission from this
Results will be published over the weekend.
Please let us know about your transmissions in the comments!
EDIT: To prevent overlap, we will post intended transmissions below:
435.050 MHz: KM39gc (Greece), SV8QG
435.163 MHZ: G3VZV, IO92QA
435.250 MHz: FF46ro, CE3RY
435.300 MHz: Europe
435.325 MHz: FF46QI, CE3QC
435.350 MHz: 05 Feb 19, 19:24 UTC, IV3RYQ
435.350 MHz: EB1ASA
435.375 MHz: 06 Feb 19, several passes over Europe, IN87KM
435.435 MHz: 06 Feb 19, 12.03 and at 19.30 utc (JN65qt), IV3RYQ
435.440 MHz: 05 Feb 19, 17:45 -17:55 UTC, HB9WDF
435.500 MHz: Europe, MX0MXO
435.550 MHz: Europe, ON7UX, ON4ISS
435.580 MHz: 05 Feb 19, 19:21 UTC, SQ6PNV
435.950 MHz: Europe
435.600 MHz: Italy
436.100 MHz: DM91SK, AA5PK
436.500 MHz: Do not use Worldwide – Center frequency (DC Offset)
436.625/.635 MHz: 05 Feb 19, 14:33-14:42 UTC, 16:09 UTC, OH2FQV
436.700 MHz: JO82II, SQ3DHO
436.800 MHz: 06 Feb 19, 01:44-01:52 UTC, PV8DX
437.000 MHz: 05 Feb 19, 19:06-19:09
437.280 MHz: 06 Feb 19, 01:33-01:44 UTC, K4KDR
437.333 MHz: 05 Feb 19 19:20 UTC, JO54DI
437.485 MHz: Italy
437.700 MHz: 06 Feb 19 01:40 UTC, 08:29 UTC, EM90eg, KB4PML
FYI: Yesterday (Feb 5th 2019) we had more visits (2468) on this blog than on any other day! Thanks for all the good work!
Transmitted to ISS today as follows
DF2MZ
Location: JO54DI
Frequency: 437.333 MHz
Power: 50 W
Antenna: 14 dBd, RHCP, 2 axis steered
Times:
06.02.2019, 1204 – 1213 UTC
06.02.2019, 1339 – 1350 UTC
06.02.2019, 1651 – 1703 UTC
06.02.2019, 1828 – 1838 UTC
Will transmit again tomorrow during available passes on same frequency
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G0FJY transmitted on 435.650MHz at 16.50 hrs from IO71VA. 30 Watts to a vertical colinear antenna
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437.280 MHz: 07 Feb 19, 00:42-00:51 UTC, K4KDR
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AA5PK transmitted on 436.100 MHz at ~0225Z from DM91sk. 50 watts to 30-element RHCP antenna tracking az/el, no Doppler correction.
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TX on 437.500 MHz no doppler, on Feb 7th 2019 0350 thru 0354 hrs UTC, Grid CM97an, 40 watts into a cross yagi RHCP configuration with a gain about 9 dBi. Limited to half the pass due to large building in the way due South.
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I will use 435.435 today 07 Feb at 11.12 and 17.40 utc from JN65qt
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M0NUX on 6th February from JO02jn (Norfolk UK) – TS2000 on 436.15 no doppler with 40 watts to 10 element yagi (Diamond A430S10R) on az-el rotator. Antenna horizontally polarised WRT earth.
18:29 UTC for 1 minute elevation 16 degrees at start
then alternate minutes to end of pass. 4 periods of transmission in total.
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I have transmitted on 435.500 MHZ on 06th Feb 2019 between 1533-1536 Hrs UTC
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F4HXC 07/02/2019 7 févr. 16:01:37 UT=> 16:08:12 UT 7 févr.-17:38:UT=>17:44:42UT 7 févr. 19:15:UT=>19:19:UT I’ll transmiting at 435.525 mhz with diamond X200 and 20w on JO10LB
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7 Feb Start TX 11:11 UTC 435.300, 1K1SLD ARISS Telebridge Ground Station
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6 Feb Start TX 18:29 UTC 435.300, 1K1SLD ARISS Telebridge Ground Station , stop tx 11.21.44 utc
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Copy & paste error, EDIT: 6 FEB 6 Feb Start TX 18:29 UTC 435.300, 1K1SLD ARISS Telebridge Ground Station , stop tx 18:39 UTC
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7 Feb, Ended TX 11:21:44 UTC
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He trasmitido en 435.450 Mhz
El 07 Febrero 2019 10:42 a 10:44 UTC . Con 14.o Elev.
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I have transmitted on 435.435 Mhz 07 feb from 11.12 to 11.22 utc, 80 watts in 12 el Yagi. Next test at 17.40 utc ‘ 73
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Another report from a friend: 6 Feb 15:15 UTC to 15:25 UTC IW2NIS transmitted on 436.600
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I have transmitted on 435.500 MHz as given below
Date : 06th Feb 2019
Time : 1535-1337 hrs UTC
Power : 20W
Antenna : Diamond X300
Qth : Lucknow, India Grid (NL06lu)
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Typo error
Pl read as
Time : 1535-1537 hrs UTC
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I have transmitted on 435.440 on Orbit 15510 between 12:52 and 1259 UTC.
I will also send on the next Orbits 15511 an 15512
QTH: St, Erhard, Lucerne JN47AE
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Orbit 15511 between 0226 and 0235 UTC
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0226 and 0235 PM UTC… 😉
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And Orbit 15512 from 1603 to 1611
All transmission on 435.440 CW
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7 Feb tx 12:46-12:56 UTC 435.400 IK1SLD ARISS Telebridge Ground Station
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F5MDY was on 436.900 12.48UTC on Feb 7th / 100W on Yagi 16dBi RHCP with tracking. Best 73 Nicolas
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F5MDY was on 436.900 14.25 UTC, Feb 7th / 100W on Yagi 16dBi RHCP with tracking. JN02RN. Best 73 Nicolas
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I transmitted on 435.500 MHz as per following schedule:
Date – 07th Feb 2019
Time : 1445-1448 hrs UTC
Power- 20W
Antenna – vertical Diamond X-300
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M0NUX on 7th February from JO02jn (Norfolk UK) – TS2000 on 436.15 no doppler with 40 watts to 10 element yagi (Diamond A430S10R) on az-el rotator. Antenna horizontally polarised WRT earth.
14:23 UTC for 1 minute then alternate minutes to end of pass. 5 periods of transmission in total.
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IZ5ILX
7/ 02 / 2019
ORBIT # 115512 QRG TX 50W Antenna YAGY 2 X 10
QTR : 14:24 z
GRID LOCATOR
73 VALE !!
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YAGI 2 X 10
LOCATOR
73 VALE
IZ5ILX
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From JN54AC Locator
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Call: KB4PML Location: EM90eg Frequency: 437.700 MHz FM
Time: 07.02.2019, 0223 – 0227 UTC Power: 50 W Antenna: Cushcraft AR-270B vertical
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Janek SQ5NBR KO02NF 436.025MHz 60W + J-pole antenna. I will try to send signals from 2019.02.07 evening
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DO8DGM JO61SJ 7 Febr. 2019 437,575 MHz 50W Diamont X-30 nondrected vertical
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DO8DGM JO61SJ 7 Febr. 437,575MHz 16:06:00-16:07:00 UTC ! sorry!
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Transmitted to ISS as follows:
IK8XLD
Location: JN70VO
Power: 80 W
Antenna: 21 el Yagi H
Times:
05.02.2019, 17:46 – 17:55 UTC 435.600 MHz
06.02.2019, 18:32 – 18:40 UTC 436.550 MHz
07.02.2019, 11:11 – 11:20 UTC 436.600 MHz
07.02.2019, 14:28 – 14:36 UTC 436.650 MHZ
07.02.2019, 16:06 – 16:13 UTC 436.400 MHZ
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7Feb tx 16:00:50 to 16:11:18 UTC 435.400 IK1SLD ARISS Telebridge Ground Station
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437.280 MHz: 07 Feb 19, 17:23-17:29 UTC, K4KDR
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I will use 435.575 today 07 Feb at 17.40 utc from JM77AO
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436.650 from 17:40 utc from JN70VO
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i am using on 435.400 tu day 07 february from 17:37 at 1744z with 40watts and vertical F5NZO/P on JN09PF
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from JO44QB, RHCP, 437.777 MHz, 7th Feb
12:49 – 12:58 UTC
14:25 – 14:34 UTC
17:38 – 17:46 UTC
73 de Dirk, DB5LS
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Just transmitted on 435.435 Mhz 07 feb from 17.39 to 17.49 utc, max ISS elev 60 ° 80 watts in 12 el Yagi ‘ 73
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And again on 435.440 CW between 1738 and 1750 UTC from JN47AE
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7 Feb TX 17:37:30UTC-17:48:22 UTC 435.500 IK1SLD ARISS Telebridge Ground Station.
73!
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Sorry, typo. The freq was 435.400 (17:37-17:48 UTC)
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Transmitted to ISS today as follows
DF2MZ
Location: JO54DI
Frequency: 437.333 MHz
Power: 50 W
Antenna: 14 dBd, RHCP, 2 axis steered
Times:
07.02.2019, 1114 – 1122 UTC
07.02.2019, 1604 – 1612 UTC
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7 Feb, TX 19:14 UTC- 19:23 UTC 435.400 IK1SLD ARISS Telebridge Ground Station.
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437.280 MHz: 07 Feb 19, 23:52-23:59 UTC, K4KDR
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Call: KB4PML Location: EM90eg Frequency: 437.700 MHz FM
Time: 08.02.2019, 0132 – 0135 UTC Power: 50 W Antenna: Cushcraft AR-270B vertical
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HJ4BOL
437.7 MHz – location FJ26fe
Time 1457-1458 utc
Yaesu vx8dr
HARVEST SRH-940
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Errata
HJ4BOL
437.7 MHz – location FJ26fe
2018-02-08
Time 1450-1451 utc
Yaesu vx8dr
HARVEST SRH-940
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HJ4BOL
437.7 MHz – location FJ26fe
2018-02-08
Time 1450-1451 utc
Yaesu vx8dr
HARVEST SRH-94
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I will use 435.435 today 08 Feb at 11.58 utc from JN65qt
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PU5OSB from GG54FM.
I will transmit 437.550 MHz, 30W, vertical antenna, today 08 feb at 11:33 UTC.
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Just transmitted on 435.435 Mhz 08 feb from 11.56 to 12.07 utc, max ISS elev 73° 80 watts in 12 el Yagi from JN65qt. Last transmission from my station. Thanks for the involvement in this test, good luck and ‘ 73 Maurizio IV3RYQ
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DO8DGM JO61SJ 50W Diamond X-30 vertical nondirected
8 Febr. 2019 13:38:00-13:39:00 UTC 437,950 MHz
8 Febr. 2019 13:40:00-13:41:10 UTC 437,950 MHz 73 Dieter
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8 Feb tx 11:56:00 UTC- 12:06 UTC 435.400 IK1SLD Telebridge Ground Station.
Transmissions in 6-7-8 Feb were operated, for all the team, by IZ1UWP Giovanni & IK1SLD Claudio. 73!
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TX to ISS on 435.500 at 15:09 UK from IO91SK 40 watts arrow antenna and yaesu 8900 in the rain !! 73 M0jfp/ MX0MXO
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16:46 UK 435.500 80 degree pass 40 wTts from 8900 via arrow antenna 73 James M0JFP/ MX0MXO
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from JO44QB, RHCP, 437.777 MHz, 8th Feb
11:58 – 12:06 UTC
13:34 – 13:43 UTC
15:10 – 15:19 UTC
16:46 – 16:54 UTC
73 de Dirk, DB5LS
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1810 – 1813 UTC , 5 Watts with 7 element Yagi at 437.000 MHz. From Grid EM79ji, 39.34 N, 85.20 W. Max elevation 52 degrees. Steve AI9IN
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