Welcome to Tropical band

To most people the phrase "tropical bands" bring a pretty clear picture to mind - a bunch of shirtless guys playing calypso music. But to experienced shortwave DXers those two little words express the most challenging and enjoyable part of the radio hobby. The phrase kindles memories of a DXer's best catches and favorite QSLs, of exotic stations, music and of early morning listening sessions. (Don Moore)
I like the "Tropical band" name for new 60m allocation. (OK1RP)

Effective from 1st Jan 2017 please paper QSL via OM-bureau only.

Monday, November 28, 2011

Better FCC definition of the 60m band by Bonnie Crystal, KQ6XA

USA's Federal Communications Commission released a REPORT AND ORDER on November 18, 2011with new 5MHz rules for the Amateur Radio Service.Effective date: 30 days after publication in the Federal Register.

The FCC adopted the use of the name "60 meter band",to refer to 5MHz amateur radio in the frequency range 5330.5-5406.4 kHz, but USA hams are still only allowed to transmit on 5 specific channels in the band.

The FCC changed the rules to allow:Phone (Upper Sideband), RTTY, Data, and CW;with specific limitations on the use of these modes.

Amateur radio is a "secondary user" in this band, and must not cause harmful interference to other services!Amateur Radio Service must accept interference from other primary services and other nations services.

Operators transmitting data or RTTY must exercise care to limit the length of transmission so as to avoid causing harmful interference to US Government stations.

New 60 meter band 5MHz Channel List:General, Advanced, or Amateur Extra Class license only.

Suppressed Carrier
VFO Dial freq
5330.5 kHz USB (center of channel = 5332.0)
5346.5 kHz USB (center of channel = 5348.0)
5357.0 kHz USB (center of channel = 5358.5)
New!5371.5 kHz USB (center of channel = 5373.0)
5403.5 kHz USB (center of channel = 5405.0)

Note: FCC deleted the channel at 5366.5 USB (center=5368.0)
and "replaced" it with channel 5357.0 kHz USB (center=5358.5)

The maximum allowed power level is now

PEP (ERP)effective radiated power referenced to a dipole.If another type of antenna is used, the station licensee must maintain a record of either the antenna manufacturer's data on the antenna gain or calculations of the antenna gain.

Upper Side Band Phone, Data, or RTTY transmissions may use dial (VFO) USB suppressed carrier frequency at 1.5kHz below the center of the channel.

Transmissions must not exceed the 2.8kHz bandwidth channel.RTTY modes such as PSK31 must not exceed 60Hz necessary bandwidth. Data modes must not exceed 2.8kHz bandwidth.CW bandwidth must not exceed 150Hz bandwidth and the CW frequency should be at the center of the channel.

Data stations operating under section § 97.221automatically controlled digital station, are not allowed on these 5MHz channels.

I am posting my apologize to Bonnie KQ6ZA that this article "A Better Definition of the 60m Band" was falsely attributed to Dan, K3ZXL.

Thank You to Bonnie Crystal KQ6XA, Joe KI4PEM/AE as same as to Joe, W8GEX for sharing all of these information to us.

73 - Petr, OK1RP

1 comment:

  1. This article "A Better Definition of the 60m Band" is falsely attributed to Dan, K3ZXL.

    In actual fact, I am the author of the article.
    Please correct the authorship or remove this article from your website.

    Bonnie Crystal KQ6XA