“OZ7IGY”的意思、由来-开放百科全书

Table 1: OZ7IGY Transmitting Frequencies

Band

Frequency

GPS & PI4

10 m

28.271 MHz

Yes

8 m

40.071 MHz

Yes

6 m

50.471 MHz

Yes

4 m

70.021 MHz

Yes

2 m

144.471 MHz

Yes

70 cm

432.471 MHz

Yes

23 cm

1296.930 MHz

Yes

13 cm

2320.930 MHz

Yes

9 cm

3400.930 MHz

Yes

6 cm

5760.930 MHz

Yes

3 cm

10368.930 MHz

Yes

1.2 cm

24048.930 MHz

Yes

OZ7IGY is a Danish amateur radio beacon, and the world's oldest^[1] VHF and UHF amateur radio beacon and active since the International Geophysical Year in 1957.^[2] It is located near Jystrup, in Maidenhead locator JO55WM54, and transmits on the frequencies detailed in Table 1.

Since 30 October 2012, when the Next Generation Beacons platform came into use, the 2 m and 6 m beacons have been frequency and time locked to GPS.^[3]

From 30 March 2013 all the beacons using the Next Generation Beacons platform transmit PI4 (a specialized digital modulation system), CW and unmodulated carrier in a one-minute cycle. The frequency precision of the Next Generation Beacons is typically better than 5 mHz. Over time all the OZ7IGY beacons will use the Next Generation Beacons platform.^[4]

References

1. ^http://www.oz7igy.dk
2. ^{{cite journal |author=Martin Harrison, G3USF |title=Getting started in beacons, part 1 |journal=RadCom |volume=89 |issue=02 |publisher=Radio Society of Great Britain |pages=22 |date=February 2013|issn = 1367-1499}}
3. ^{{cite web|author = Bo Hansen, OZ2M|url = http://www.rudius.net/oz2m/ngnb|title = Next Generation Beacons Overview }}
4. ^{{cite journal |author = Andy Talbot, G4JNT|title = Data - Latest news on datamodes from beacons |journal = RadCom|issn = 1367-1499|date = August 2015 |volume = 91 |issue = 08 |pages = 74|publisher=Radio Society of Great Britain }}

References

External links