One other important thing to remember about SO-50. Unlike AO-51 and AO-27, it does not transmit a carrier. You won't hear any noise unless someone is transmitting. You can't just wave your antenna around and peak for maximum on a carrier. So unless you are running full duplex and can hear your own signal, in times of low activity you don't know if you are getting into the bird.
Although SO-50 is not as strong as the other birds, you can work it easily with an HT and an Elk or Arrow handheld antenna.
73, Bill NZ5N
SO-50 is difficult to work for two reasons, in my opinion:
1 - Its power level is a nominal 250 milliwatts (.25 watt).
2 - It is transmitting that quarter-watt into a 0-gain quarter-wave vertical mounted on one corner of the satellite.
This truly is the QRPp space-radio station! There is a very good chance that you are doing nothing wrong. I encourage you, however, to try working a pass without Doppler control. Let your ears guide you for the Doppler tuning, based on the relative noise level as the pass unfolds, and park your uplink at 145.850.
The very best of luck. Please let us know how you progress.
73,
Tim - N3Tl Athens, Ga. - EM84ha
I looked at Google but couldn't find the answer to this question.
The reason for asking is?
I have a 5600 controller and a G-400 rotor and this isn't working because I think of the fact that there is no C between the two AC lines within the 5600 controller that supply the rotor with AC, and within the G-600 controller there is.
The elevation rotor is a KR-500 and KR-500 controller is the same situation.
Are there special rotors for the 5600 controller? I can't imagine that yaesu made special one's for this controller.
So my question, what are the differences between 5400/5600, 5500, 400 and 500. And is there a way to connect them to the 5600 controller so I can finaly use my LVB tracker :-)
Any help is appreciated.
73's Jan - PE0SAT
----- Original Message ----- From: "PE0SAT" pe0sat@vgnet.nl To: amsat-bb@amsat.org Sent: Friday, August 21, 2009 6:46 PM Subject: [amsat-bb] Difference between Yaesu G5400, G5600 and G5500
I looked at Google but couldn't find the answer to this question.
The reason for asking is?
I have a 5600 controller and a G-400 rotor and this isn't working because I think of the fact that there is no C between the two AC lines within the 5600 controller that supply the rotor with AC, and within the G-600 controller there is.
The elevation rotor is a KR-500 and KR-500 controller is the same situation.
Are there special rotors for the 5600 controller? I can't imagine that yaesu made special one's for this controller.
So my question, what are the differences between 5400/5600, 5500, 400 and 500. And is there a way to connect them to the 5600 controller so I can finaly use my LVB tracker :-)
Any help is appreciated.
73's Jan - PE0SAT
Hi Jan, PE0SAT
The G-5400 has the starting AC capacitor C installed into the control box only for the azimuth motor wich is a KR-400 and obviously there is not limit switch into the azimuth rotator KR-400 Instead for the Elevation motor the starting capacitor C is located inside the rotator and there are limit switches.
The G-5500 has the capacitors C installed into the rotators one C for the azimuth and one C for the elevation. In addition there are limit switches both for azimuth and elevation.
The G-5600 is like the G-5500 with capacitors C installed into the rotators and there are limit switches both for azimuth and elevation.
If you want to use the G-5600 controller with an old KR-400 for azimuth and a KR-500 for the elevation you must connect an AC capacitor of 100 uF 70 volt across terminals A4 and A5 of the controller for the azimuth and another 100 uF 70 volt capacitor across terminals E4 and E5 for the elevation.
A capacity for C of 50 uF and 70 volt insulation will work equally well. Since the above capacitors are relatively big in size I suspect that there is no room to put them into the controller and if so they should be connected outside the controller across the above mentioned terminals.
The rest of the controller don't need modifications.
In a separate email I will send to you the original schematic diagrams of the above rotators.
Have fun and 73" de
i8CVS Domenico
participants (3)
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Bill Dzurilla
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i8cvs
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PE0SAT