OSSI-1 deployed yesterday evening. Anyone seen any keeps yet ?
Trevor M5AKA
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Just a quick note: My G-5500 Yaesu rotor and ST-3 interface are for sale. Very
good condition and working perfectly. If you live close to 34488 (Ocala/Silver
Springs FL) I have
the fiberglas cross boom I will include at no charge. Asking $650 for all.
BION ??
1 39130U 13015A 13109.86774677 -.1982 62674-5 0+0 038
2 39130 064.8855 032.0365 0223088 061.7172 336.4641 15.5445839663
OSSI??
1 39137U 13015H 13109.61683023 .00218796 18651-4 10338-2 037
2 39137 064.9052 032.9523 0221255 060.5813 013.8697 15.5503742135
Bion M1 is 39130, 2013-015A.
The upper stage of the Soyuz 2 rocket is 39137, 2013-015H.
OSSI 1 is probably 39131, 2013-015B. No element set has been
provided yet for this satellite. It was separated from BION M1
at 16:13:50 UTC on April 19.
The ID numbers 39132 to 39136 have been reserved for
To this Apollophile this is fascinating stuff, thanks for sharing.
Rick Tejera (K7TEJ)
Sagauro Astronomy Club
www.saguaroastro.org
Thunderbird Amatuer Radio Club
www.w7tbc.org
30 Meter Digital Group # 5794
Feld Hell Club #3994
OMISS #8629
-Original Message-
From:
Domenico,
There are two solutions to use coax to combine two 50 Ohm antennas. 70.7 Ohm
cable (50 to 100) [Two 50 ohm antennas transformed by two lines to 100 Ohms
each, in parallel = 50 Ohms] and your suggestion using 35.4 Ohm cable
section (25 to 50) = [Two 50 ohm antennas connected in parallel =
http://www.nasaspaceflight.com/2013/04/orbital-antares-debut-launch-attempt/
http://spaceflightnow.com/antares/demo/status.html
Next attempt will apparently be tomorrow.
73s
Bernhard VA6BMJ @ DO33FL
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Hello Domenico, Art and the -bb,
My comment here is with the ARROWS antennas.
I think one thing is overlooked here.
We are dealing with two antennas on different frequencies.
And yes in this it may work since 435 MHz is 3 times the 145 MHz.
So 1 quarter wavelength on 145 MHz becomes 3 quarter
I'm selling my IC-910 with one UT-106 DSP unit and UX-910 1296 MHz. $1475
shipped USA only. Contact me direct.
Dave-KB1PVH
Sent from my Verizon Wireless Droid RAZR
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Not an
Hi Art, KC6UQH
Feeding a 50 ohm antenna with a odd numbar of 1/4 electrical wavelenght of
75 ohm coax cable you transform the 50 ohm antenna impedance into 100 ohm
and connecting two 100 ohm impedances in parallel you get again 50 ohm to
supply the system main fedline to TX and RX but using this
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Domenico,
Loss for a 1/4 wave resonant line is small. RG 4121/2 5/8 and 3/4 inch 75
Ohm line for CATV is very low loss. If you build your own Coax the impedance
should be 35.4 Ohms for your preferred match.
73, Art
-Original Message-
From: i8cvs [mailto:domenico.i8...@tin.it]
Sent:
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