guides:faq
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guides:faq [2010/03/18 23:17] – jcoxon | guides:faq [2024/03/03 10:21] (current) – [Do I need to get permission to launch a weather balloon in the UK?] daveake | ||
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===== Do I need to get permission to launch a weather balloon in the UK? ===== | ===== Do I need to get permission to launch a weather balloon in the UK? ===== | ||
- | In the UK weather balloon | + | In the UK, permission for weather balloon |
+ | |||
+ | The CAA will send you a permit document if you have been granted permission to launch - it normally contains some form of co-ordination instructions with a local airfield that need to be followed before launch. You must be in receipt of a Permit before you can launch. | ||
+ | |||
+ | The actual situation is not that you are applying for permission but instead being granted exemption from the Air Navigation Order 2005 surrounding the launching of balloons. The regulations require the use of a standard meteorological balloon and for the payload to descend by parachute. | ||
- | The actual situation is not that you are applying for permission but instead being granted exemption from the Air Navigation Order 2005 surround the launching of balloons. The regulations require the use of a standard meterological balloon and for the payload to descend by parachute. | ||
===== Is it safe? What about the planes? ===== | ===== Is it safe? What about the planes? ===== | ||
- | The most important thing when planning and launching high altitude balloons is to be safe. Regarding | + | The most important thing when planning and launching high altitude balloons is to be safe. For the benefit of other flying vehicles, such as planes, when you get ' |
- | Other methods of being safe is to strive | + | |
- | Finally you should only launch when the winds are right - it is not advisable to fly when the forecasts have it landing in a densily | + | Other methods of being safe include striving |
+ | |||
+ | Finally you should only launch when the winds are right - it is not advisable to fly when the forecasts have it landing in a densely | ||
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Regulations may vary in other countries - ie American and Australian legislation appears to allow the use of amateur radio transmitters in airborne applications. Don't take this as gospel - check with your local regulator. | Regulations may vary in other countries - ie American and Australian legislation appears to allow the use of amateur radio transmitters in airborne applications. Don't take this as gospel - check with your local regulator. | ||
- | ===== How come on the Radiometrix data sheet it says that the NTX2 10mW 434.075Mhz transmitter only goes 500m but you still use it? ===== | + | |
- | Indeed the Radiometrix NTX2 does only transmit ~500m when on the ground, the limited range is due to poor line of sight (LOS) when used on the ground. Attached to a balloon transmitting at a slow data rate and with a sensitive receiving antenna and radio the LOS is excellent and so it is possible to get over 400km range! Most commonly we use RTTY at 50 baud and use amateur radio receivers such as the FT-790r, FT-817 and Icom IC7000 and yagi antennas to receive. | + | |
+ | ===== How come on the Radiometrix | ||
+ | Indeed the Radiometrix NTX2 does only transmit ~500m when on the ground, the limited range is due to poor line of sight (LOS). Attached to a balloon transmitting at a slow data rate and with a sensitive receiving antenna and radio the LOS is excellent and so it is possible to get over 400km range! Most commonly we use RTTY at 50 baud and use amateur radio receivers such as the FT-790r, FT-817 and Icom IC7000 and yagi antennas to receive. | ||
===== Where can I get more information and advice about building a High Altitude Balloon (HAB) payload? ===== | ===== Where can I get more information and advice about building a High Altitude Balloon (HAB) payload? ===== | ||
- | Most of the discussion about HABing both in the UK and around the world takes place on the IRC channel - # | + | Most of the discussion about HABing both in the UK and around the world takes place on the IRC channel - # |
guides/faq.1268954274.txt.gz · Last modified: 2010/03/18 23:17 by jcoxon