9C super
03-04-2005, 08:18 PM
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9C super
I just wanted to check something before I bought the new 9c super. I know the transmitter is ppm pcm selectable, but can you switch between 72MHz and 50MHz. The radio is sold in combo's at tower with receivers on both 50 and 72 in pcm. Can you switch it?
03-04-2005, 08:39 PM
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RE: 9C super
Not sure, I don't think so... I just ordered a 9caps today, 72MHz, ch. 15. I think the 50MHz and 72MHz are set at the factory and must be sent back to change (same with high/low channel range)... I'll know more when it arrives.
I wonder if the synth module is a snap-in upgrade or does that also need to go back to the factory?
I wonder if the synth module is a snap-in upgrade or does that also need to go back to the factory?
03-04-2005, 09:21 PM
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RE: 9C super
Thats what I thought. Is there any reason to favor one over the other. The tower "comments", lists separate regulations for changing crystals yourself, but I don't intend to do that anyway. Can a channel 16 on 72MHz be shot down by a channel 16 on 50MHz? I think it would, but I'm not sure. Anyone have any preferences or comments?
03-04-2005, 11:51 PM
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RE: 9C super
Dennis is absolutely correct ... just change the module to change bands (35MHz, 50MHz, 72MHz, 75MHz ... all with the same radio!). Since you're changing the RF section and not just the crystal, there's no problem with the FCC regulation on changing crystals.
There is no chance of a 50MHz radio shooting down a 72MHz aircraft. Also, the 50MHz band doesn't have a channel 16, only 0 thru 9. 72MHz goes from channel 11 to 60 and 75MHz is from 61 to 90.
One thing to remember is that the FCC requires a Ham radio license to use a 50MHz transmitter. One advantage to that band is that there aren't usually many fliers at most clubs on 50MHz because of the Ham requirement, so that means less chance of having to wait while someone else is using you frequency.
Keith
There is no chance of a 50MHz radio shooting down a 72MHz aircraft. Also, the 50MHz band doesn't have a channel 16, only 0 thru 9. 72MHz goes from channel 11 to 60 and 75MHz is from 61 to 90.
One thing to remember is that the FCC requires a Ham radio license to use a 50MHz transmitter. One advantage to that band is that there aren't usually many fliers at most clubs on 50MHz because of the Ham requirement, so that means less chance of having to wait while someone else is using you frequency.
Keith
