1.25 metres: Difference between revisions
(Added band template chart.) |
(Changed "United States" to "Region 2", and included list of countries where 222 ops are occurring.) |
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222 MHz to 225 MHz is an amateur band only in the United States. | 222 MHz to 225 MHz is an amateur band only in Region 2. Countries where 222 MHz operation exists include the United States, Mexico, Central America, the Caribbean, and Brazil. | ||
== Equipment == | == Equipment == | ||
Because 222 MHz is only available to amateurs in | Because 222 MHz is only available to amateurs in Region 2, very little currently-manufactured equipment supports it. Examples include the [http://www.eham.net/reviews/detail/1404 Alinco DR-235T], the [http://www.eham.net/reviews/detail/1739 Kenwood TH-F6A] and the U.S. versions of the [[Yaesu]] [http://www.yaesu.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=111&encProdID=8D3254BFC69FB172D78647DC56EFB0E9&DivisionID=65&isArchived=0 VX-7R] and [http://www.yaesu.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=111&encProdID=4C6F204F6FEBB5BAFA58BCC1C131EAC0&DivisionID=65&isArchived=0 VX-6R] [[HTs|HT]]. Many amateurs, especially those who do weak-signal work, use [[transverters]] on this band. | ||
== Modulation == | == Modulation == | ||
Revision as of 15:08, 4 April 2008
| Band: 1.25m | |
| Bands | |
| 160m 80m 60m 40m 30m 20m 17m 15m 12m 10m 6m 4m 2m 1.25m 70cm 33cm 23cm 3cm | |
| Band Privileges | |
| US Extra | 222.000-225.000 |
| US Advanced | 222.000-225.000 |
| US General | 222.000-225.000 |
| US Technician | 222.000-225.000 |
| UK (all) | {{{UK}}} |
222 MHz to 225 MHz is an amateur band only in Region 2. Countries where 222 MHz operation exists include the United States, Mexico, Central America, the Caribbean, and Brazil.
Equipment
Because 222 MHz is only available to amateurs in Region 2, very little currently-manufactured equipment supports it. Examples include the Alinco DR-235T, the Kenwood TH-F6A and the U.S. versions of the Yaesu VX-7R and VX-6R HT. Many amateurs, especially those who do weak-signal work, use transverters on this band.
Modulation
Like the 6 metre and 2 metre bands, operation is typically CW and SSB in the lower band and FM in the upper band.
Propagation
222 MHz propagation is primarily line of sight, although enhanced modes do exist. There is no F2 propagation on this band, but troposphere ducting and aurora exist.