Recent comments
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31 Dic contact to France - 4 January with France and USA !!!
Hi managed to receive audio over Exeter/UK at 11:17 UTC 21-deg pass with good signals on TH-D74 . ARISS site says scheduled callsign was OR4ISS via F1IMF but twitter site says FX0ISS.
Also managed to beacon RS0ISS on 437.550Mhz during contact using TH-D72 + Arrow-2 146/437-10WBP antenna.https://dl.dropbox.com/s/x3v4hb6isabsmxz/04012017_111736.wav?dl=0
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[Video] New UHF ISS Digipeater!
OK gonna try that one !
You will hear it when I got the first packet decoded !
73 TNX Danny ON4VT
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31 Dic contact to France - 4 January with France and USA !!!
Did anyone manage to get the 4 january with school in Allassac - Francia on Wed 2017-01-04 11:16:26 UTC?
Tried to get reception but got nothing
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[Video] New UHF ISS Digipeater!
Hi Danny!
You can program memory channels in an FT-991. I saw this described in a PDF copy of the FT-991 Operating Manual, as "Split Memory". There is software like SatPC32 available from AMSAT-UK or AMSAT in the USA that can control your radio, so you won't have to program memory channels.
Your vertical antenna may have a lot of gain on the 70cm band, but that gain is coming at a price - the radiation pattern. Most of the signals are being kept close to the ground, and not radiating upward where the ISS would be. Many who have been using 2m/70cm verticals with good results on 145.825 MHz (the frequency previously used by the ISS packet digipeater) are finding poor performance on 437.550 MHz.
One suggestion would be just to listen to the downlink as the ISS passes overhead. Set your VFO to 437.560 MHz FM, and slowly tune downward to end up on 437.540 MHz at the end of the pass. Use a combination of your ear (does the signal sound off-frequency?) and watching your packet software (is it starting to have problems decoding packets on whatever frequency you are on?) to know when to adjust your receive frequency.
Good luck, and 73!
Patrick
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[Video] New UHF ISS Digipeater!
Hi Pat
Great to hear from you again ! hi. In the meantime I've been qRT for more than 10 years but getting medically retired I started up this fantastic hobby again! More info and photos on my QRZ page.
For RX ISS I'm using a Yaesu FT991 with a Diamond AX300 vertical. For SSTV reception that worked out well (VHF though). The radio is not channelized so I will try again on the other frequencies (Doppler) on the next passes.
Thank you for the useful information ! Have a happy New Year and hope to work you again soon. I'm very often QRV in Olivia and JT modes, all bands 160m to 70cm ...
73 Danny ON4VT
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[Video] New UHF ISS Digipeater!
Hi Danny!
Yes, the ISS packet digipeater has been active on 437.550 MHz. You will have to compensate for Doppler on transmit and receive. For many using channelized radios, a group of 5 memory channels will allow for this. I have been doing this on my TH-D72 and TH-D74 HTs, and many others have been doing the same thing for the past couple of months.
The frequency chart I have been using is available from AMSAT at:
http://www.amsat.org/wordpress/wp-content/uploads/2014/01/ISS_Packet_Ope...
Or you can see it on my @WD9EWK Twitter feed:
What radio and antenna are you using? Many who used vertical antennas for the ISS on 145.825 MHz may not work so well for 437.550 MHz, especially if that vertical antenna has lots of gain. Antenna polarization seems to be more important on 70cm that it was on 2m, even for those using handheld Yagis or log periodic antennas.
BTW I think I worked you on 20m RTTY back in 2000. I used WD9EWK/7 on HF digital modes back then, and received an LOTW confirmation for that QSO.
Happy 2017, and 73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
Twitter: @WD9EWK -
[Video] New UHF ISS Digipeater!
Hi all
Happy New Year !
I'm a newbie in ISS packet receiving, so new tjat I even have not recieved any packet signal (437.550)
Is ISS active those days ?I installed Soundmodem and UISSv5.4 on my PC and have been monitoring during the EU passes .... so far nothing ....
73 Danny ON4VT.be
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ISS Radio Report 42278
My reception of astronaut Thomas Pesquet OR4ISS and Primary School Georges Wallers in Saint-Amand-les-Eaux, France https://www.youtube.com/watch?v=Yl_0SHjNi40
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31 December contact to school in Saint Amand - France !
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31 December contact to school in Saint Amand - France !
Managed to receive transmission from Malta
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ISS Radio Report 42248
11H31 UTC
Heard contact with French school Georges Wallers and l’IME Léonce Malécot of Saint-Amand-Les-Eaux.
Strong signal on JN02IU SW France73's Jean-Pierre de F5PMR
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Radio in USOS/RS?
As mentioned by Mark, KK6OTJ ISS APRS digipeater is now active on UHF Ericsson HT 437.550Mhz and PSAT (NO-84) cubesat APRS digipeater is currently active on 145.825Mhz
http://www1.findu.com/cgi-bin/pcsat.cgi
http://aprs.org/psat.htmlHappy New Year to you
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Radio in USOS/RS?
The current packet radio is an another Ericsson HT. It is a UHF version of the VHF radio that stopped working in October, the frequency is 437.550 MHz. The current radio was already on board & stowed, when the VHF Ericsson went down the crew simply swapped it out for the UHF one.
Happy Holidays!
de Mark, KK6OTJ
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[Video] New UHF ISS Digipeater!
Jorgen,
I think we all would like that, but you will have to be patient. It will be a little while before a radio with VHF is taken up to the ISS for the Columbus module. Until then, it is possible to work the 70cm digipeater. Seems like more are doing this here in North America than in Europe.
Good luck, and 73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
Twitter: @WD9EWK -
ISS Radio Report
My recording of ARISS school contact using new TH-D74E HT with microSD + Arrow-2 146/437-10WPB Antenna
20161221121056 : G7HCE]APRS,RS0ISS*,qAR,G7HCE-10::NWS :OR4ISS via IK1SLD school contact next pass 145.800Mhz
https://dl.dropbox.com/s/t5llcdanfkvytcx/OR4ISS%20%26%20IK1SLD_21122016_...
https://www.youtube.com/watch?v=o84MvwnR5gQ -
ISS Radio Report
My x-quad antenna is configured for fixed cirular polarisation. I think, the antenna on ISS are designed for linear polarisation. Maybe it is better, to remove the phasing harness and to switch to horizontal or vertical polarization manually by using a coax relay. At the moment i can not try a higher elevation, because of the long VHF 9ele-Yagi above the x-xquad. I will change the antennas in spring. UISS on my PC is not working because the TCP-Port 8000 is occupied by system-process svchost. I checked the system for malware, but the scanner hadn't found anything. Although i changed de port in the .ini-File the programm freezes in the start procedure. For UHF operation i can only use an ICOM mobile transceiver IC-2725. Unfourtunately i can set the frequency only in 5 kHz-steps. I have stored five frequency-pairs in the memory. Sorry for my bad englisch.
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[Video] New UHF ISS Digipeater!
I only have one Christmas wish this year and its to get ISS back on 145.825 MHz please please Santa
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ISS Radio Report
Have managed to gate you a few times but still unable to qso with you by the time I get your beacons as iss is nearer my qth and don't hear me. When the weather gets a bit better and stops raining will try with the arrow 2/70 portable again and see if the high overhead passes are any better. What sort of problem are you experiencing with UISS as I run this on i7 laptop windows 10 64bit and older Pentium laptop win 7 32bit without any issues. I normally use APRSIS32 for I-gate which has better mapping and runs well with Kenwood's TS-2000 + UISS + Soundmodem, TM-D710GE and TH-D72E HT (aprs 12 mode) but it don't like my new TH-D74E HT which works fine in kiss mode on UI-View (kiss 12 mode) via bluetooth.
Have a look at the amsat thread from Patrick: http://www.amsat.org/pipermail/amsat-bb/2016-December/061578.html -
ISS Radio Report
You might try setting your elevation to a fixed level of 30 degrees. You will cover more pass opportunities in the beam width.
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ISS Radio Report
I can also confirm that our radio operation with Space, the ISS, on UHF is more difficult than on VHF. I use an X-quad-antenna, but I have only an azimuth-rotator. The elevation is set to the fix value of 10 degrees. Strangely a transmitting contact to ISS is only successful by an elevation between 1 and 6 degrees, seldom behind that (> 6 degrees). But I can decode data packets with a higher level of elevation up to 90 degrees. Unfortunately, the program UISS on my laptop works not correct. I use UI-view and the soundmodem of UZ7HO. I will try to install an igate cause I also know that the hams have to take the initiative.
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ISS Radio Report 42232
QSO log for ISS digipeater 437.500Mhz 17/12/2016 18:53 UTC
Fm G7HCE To CQ Via RS0ISS* [18:53:07]
:EA1JM-6 :Hi 73' David in Exeter IO80gr via ISS
Fm G7HCE To CQ Via RS0ISS* [18:53:24]
:HEARDlast:EA1JM,EA1CHG-6,EA1JM-6
Fm EA1JM-6 To APRS Via RS0ISS* [18:53:28]
:G7HCE :599 in in70jv{00
Fm EA1JM-6 To APRS Via RS0ISS* [18:53:40]
:G7HCE :599 in in70jv{03
Fm G7HCE To CQ Via RS0ISS* [18:53:55]
:EA1JM-6 :QSL and 73 David via ISS
Fm EA1JM-6 To APRS Via RS0ISS* [18:54:12]
:G7HCE :Thanks for the contact!{06Mheard Stations List: 17/12/2016 * Total stations heard:3
EA1JM-6 17/12/2016 | 18:52:26
EA1CHG-6 17/12/2016 | 18:52:55
EA1JM 17/12/2016 | 18:53:00 -
ISS Radio Report
Hi guys,
I can confirm that the signal is weaker than VHF. Really difficult to receive in central Italy. -
ISS Radio Report
Unfortunately I don't hear much activity on the digipeater mostly just myself since moving to uhf and stations I do hear gets i-gated by me but the system is only on during a pass when i'm there. Sometimes I hear Spanish station logged onto RS0ISS-1 pms but other than that the digipeater is quiet.
My station is only working off a 2/70 mobile Omni antenna at this time which replaced a vhf ground plane antenna which I only put up just before the iss vhf radio failed. I only hear the iss mostly to the east of me over the Atlantic and away from Europe and at the lower passes with high altitude overhead being the worst. Other stations have posted how the signal is weak and possibly why there is less activity especially stations that use to I-gate and are now off-line unless you have higher gain tracked antennas don't see it changing much.There is a new I-gate station IR0UGN-1 PSAT-ISS iGate: active located in Italy http://www.kwos.it which should help and perhaps others will also follow. Maybe you can register and setup your own I-gate and gate some traffic you hear. The more the better.
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ISS Radio Report
Hello F4GVO,
I've also received it from JN18CR, but it seems to be weaker than in VHF, do you confirm ?
Thanks.
73's de Thibaut. -
15 december contact to school in Pisa - ITALY
In this contact it's used the Kenwood radio in Russian module, therefore the contact is operated in VHF..