According to the NASA Space Calendar, Sumbandila launch date is set at April 2007. Is this mean ZASAT not to launch at December?
Merry Christmas
Masa JN1GKZ Tokyo Japan
I am changing my supply for my ICOM IC-910H because my PS-30 is dying. I have an SGC PS-50 supply that is not regulated, per se, it is a huge supply with massive transformers. It appears to work fine, but I am worried about the fact that is starts at 16v or so.
Specifically, is 15.5 to 16v too high to safely run this radio and is a drop of 1-1.5 volts too much unregulation for proper operation?
Michael K3MH
Considering what the 910 costs---I would recommend something like the MFJ-4225MV which you can hold in the palm of your hand, produces no electrical noise, has a tiny fan, and best of all it is over-current and over-voltage protected. That is what I'm using for my 910H and as I recall it is only $150 or so. ----- Original Message ----- From: "Michael Hatzakis Jr MD" lists@hatzakis.net To: amsat-bb@amsat.org Sent: Saturday, January 20, 2007 2:25 PM Subject: [amsat-bb] Voltage Requirements of ICOM IC-910H
I am changing my supply for my ICOM IC-910H because my PS-30 is dying. I have an SGC PS-50 supply that is not regulated, per se, it is a huge supply with massive transformers. It appears to work fine, but I am worried about the fact that is starts at 16v or so.
Specifically, is 15.5 to 16v too high to safely run this radio and is a drop of 1-1.5 volts too much unregulation for proper operation?
Michael K3MH
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
The power requirements specified in the 910H manual are 13.8 VDC +/- 15%, which is 15.9 V on the high side. I would not feel comfortable running mine at that level, however. I would suggest putting a couple of 100A diodes in series with the + side of the power lead to drop it down closer to 13.8.... (2 would drop it to about 14.5, which is close to what you might encounter in a car with the engine running)
73 de KA3HSW
----- Original Message ----- From: "Michael Hatzakis Jr MD" lists@hatzakis.net To: amsat-bb@amsat.org Sent: Saturday, January 20, 2007 2:25 PM Subject: [amsat-bb] Voltage Requirements of ICOM IC-910H
I am changing my supply for my ICOM IC-910H because my PS-30 is dying. I have an SGC PS-50 supply that is not regulated, per se, it is a huge supply with massive transformers. It appears to work fine, but I am worried about the fact that is starts at 16v or so.
Specifically, is 15.5 to 16v too high to safely run this radio and is a drop of 1-1.5 volts too much unregulation for proper operation?
Michael K3MH
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Excellent idea. Thanks,
But I think I am going to get on e-bay and pick up a proper supply. I agree with the sentiment of the list.
M
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of George Henry Sent: Sunday, January 21, 2007 9:45 AM To: amsat bb Subject: [amsat-bb] Re: Voltage Requirements of ICOM IC-910H
The power requirements specified in the 910H manual are 13.8 VDC +/- 15%, which is 15.9 V on the high side. I would not feel comfortable running mine
at that level, however. I would suggest putting a couple of 100A diodes in series with the + side of the power lead to drop it down closer to 13.8.... (2 would drop it to about 14.5, which is close to what you might encounter in a car with the engine running)
73 de KA3HSW
----- Original Message ----- From: "Michael Hatzakis Jr MD" lists@hatzakis.net To: amsat-bb@amsat.org Sent: Saturday, January 20, 2007 2:25 PM Subject: [amsat-bb] Voltage Requirements of ICOM IC-910H
I am changing my supply for my ICOM IC-910H because my PS-30 is dying. I have an SGC PS-50 supply that is not regulated, per se, it is a huge supply with massive transformers. It appears to work fine, but I am worried about the fact that is starts at 16v or so.
Specifically, is 15.5 to 16v too high to safely run this radio and is a drop of 1-1.5 volts too much unregulation for proper operation?
Michael K3MH
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
participants (4)
-
George Henry -
Masahiro Arai -
Michael Hatzakis Jr MD -
Rick Vidmar - K9KK