Radio Channels
05-14-2004, 04:09 PM
#2
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RE: Radio Channels
You can find channels that experience more interference than others in many areas. This is a result of the pager and crane service use in those areas. For example at our field we have found no channels that have interference. Twenty miles away there is a field where channel 20 experiences severe interference. If in question check with your local club members or hobby shop.
05-15-2004, 01:56 PM
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RE: Radio Channels
If you are an AMA sanctioned club, you can borrow a spectrum analyzer from your local AMA VP. If you can find someone to monitor the bands over an extended period of time, it may show if you have interferance problems. Unfurtuately interferance is often spasmodic so takes some diligent monitoring. Maybe you can convince the AMA to provide a recording monitor to make things easier.
05-15-2004, 03:54 PM
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RE: Radio Channels
Our RC bands are shared with a number of commercial users like pagers and remote control gear for construction equipment and the like. They are in between our all ready close channel assignments. Plus they run much higher transmitter power than we do. (RC transmitters are seldom capable over 1 watt) So there are some locations where the commercial users over power the adjacent RC frequency. So you just don't use that channel at that site. This was part of the deal with the FCC that got us these channels to use-they have to be shared.
05-16-2004, 12:08 PM
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RE: Radio Channels
I have used channels 44, 46, and 48 for many years with no problems. But that doesn't mean I would never get a hit. Around crowded urban areas I would think anything is possible.
FCC Part 15 states... we may not cause interference, but must accept any interference. Just like CB radios. We are fortunate to have many channels, but there is always a risk.
My private field is only 2 miles from a large lake. We are always vigil about guys running RC Boats (or cars) on Aircraft frequencies.
BOB
FCC Part 15 states... we may not cause interference, but must accept any interference. Just like CB radios. We are fortunate to have many channels, but there is always a risk.
My private field is only 2 miles from a large lake. We are always vigil about guys running RC Boats (or cars) on Aircraft frequencies.
BOB
05-16-2004, 02:22 PM
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RE: Radio Channels
Pagers and other remote operating systems are subject to the same rules as RC. If they have kicked up above the power they are limited to they can be made to comply. If they have deviated from the area to which they are assigned they can be made to comply with that also. Determining what their power and area assignments are can be a long process and requires some very refined equipment. If they are in violation of their own limits most operators will cooperate. As in the case of the CB bandits some are just mean and ornery and don't believe they have to obey the rules.
