Power Translator World Premium 14 20
Osoulo Lejeune
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It also has a network of seven translators that carry KCAW to seven nearby towns. These communities range in population from a few dozen in Elfin Cove to about 900 in Yakutat. The population grows quite a bit every summer, when thousands converge on the region to work in the commercial fishing industry.
Our first project was the update of the translator in Port Alexander, year-round population 56. It has no cars, no roads, no stores, no cell service, no grid electricity. I worked there for a month in August and never used a cell phone or keys or took out my wallet. The temperature never went above 68 Fahrenheit.
One of the biggest obstacles in these villages is electric power. In Port Alexander, all power comes from personal generators, except for a generator that powers city hall (known as Bear Hall for the large animal skin hanging on the wall).
Installation could not have been easier, except for two issues. First: The device has a fairly high overhead in power consumption, about 65 watts of constant load all the time, even if you are only using a few watts. (It only consumes this when it is inverting, not when it is charging or charge-controlling.) That is about 1.5 kWH per day you have to produce just to feed the inverter/charger/controller.
However, we were limited by electric power input; we did not have electrical watts to spare, so I opted for a three-bay vertical dipole from Label Italy. This allowed me to have some gain and reduce TPO in order to get a 250-watt equivalent ERP.
We chose an Ecreso transmitter, which has internet-based diagnostic functionality. I also am intrigued by the technology called SmartFM. Essentially, it turns down the RF power when there is highly dense program material, because if it is done carefully, the listenability and coverage can remain indistinguishable. The manufacturer says that power savings can be up to 40% of what you would normally have to use, with equivalent coverage.
Low-power broadcasting is broadcasting by a broadcast station at a low transmitter power output to a smaller service area than "full power" stations within the same region. It is often distinguished from "micropower broadcasting" (more commonly "microbroadcasting") and broadcast translators. LPAM, LPFM and LPTV are in various levels of use across the world, varying widely based on the laws and their enforcement.
LPFM is broken up into two classes in Canada, Low (50 watts) and Very Low (10 watts). The transmitters therefore range from 1 to 50 watts, as opposed to 1 to 100 watts in the U.S. As of 2000[update], 500 licenses (very low and low-power FM) have been issued. These transmitters are generally only allowed in remote areas.
Stations in the low-power class are subject to the same CRTC licensing requirements, and will generally follow the same call sign format, as full-power stations. Stations in the very low-power class formerly had to have CRTC licenses as well, although a series of CRTC regulation changes in the early 2000s exempted most such stations from licensing; a station in this class will usually not have a conventional call sign, but will instead be identified in a naming format consisting of a four-digit number preceded by the letters CH for a television station or VF for a radio station.
The regulation of spectrum space is strict in Canada, as well having restrictions on second and third adjacent channels, along with other protections for AM and FM commercial radio. In addition, because there have been a few cases that found that FM frequencies have caused interference to the aeronautical navigation and communications (NAV/COM) spectrum (though evidence is not very concrete presently), pirate radio regulation has remained very strict as well. However, the two regulating bodies do have certain exemptions. For example, low-power announcement transmitters that meet the requirement of Broadcasting Equipment Technical Standards 1, Limited Duration Special Events Distribution Undertakings, Temporary Resource Development Distribution Undertakings, and Public Emergency Radio Undertakings are a few instances, which according to certain criteria, may be exempt from certificate/license requirements.[2]
A television station is considered very low power if its power does not exceed 2 watts for a VHF station, or 10 watts for a UHF station. [3] Low-power analog & digital television stations are authorized to operate with up to 50 watts in VHF, or 500 watts for a UHF station.[4][5]
There exists a 25 km broadcast translator rule: one licensee may operate two transmitters anywhere (close together), but a third transmitter must be at least 25 km away from at least one of the first two transmitters.[6]
Temporary low-power stations are allowed at times via a Restricted Service Licence. Since 2001, long-term LPFM licenses have been available in remote areas of the country. These are currently used for many establishments, including military bases, universities and hospitals with fixed boundaries.[citation needed]
Low Power FM (LPFM) is a non-commercial educational broadcast radio service created by the Federal Communications Commission in the United States in 2000. LPFM licenses, which are limited to a maximum effective radiated power (ERP) of 100 watts, may be issued to non-commercial educational entities, as well as public safety and transportation organizations. Individuals and holders of other types of broadcast licenses are not eligible. In addition, LPFM stations are not protected from interference from other classes of FM stations.[8]
In addition, Class D educational licenses exist for stations of 10 watts transmitter power output (TPO) or less, regardless of ERP. These stations are all grandfathered operations, as no new licenses of this type have been issued since 1978, except in Alaska. They are not considered to be LPFM stations, although they operate noncommercially and have similar coverage areas to Class L2 stations.
Pressure from the National Association of Broadcasters urged Congress to slip the Radio Broadcasting Preservation Act of 2000 into a general spending bill then moving through Congress. President Bill Clinton signed the bill in December 2000. The bill passed by Congress (H.R.567) was meant to tighten standards for LPFM stations, making it harder for them to be approved, to protect full-power FM stations through certain provisions:
The Local Community Radio Act of 2005 was introduced by Senators John McCain, Maria Cantwell and Patrick Leahy. After the FCC complied with the provisions of the Radio Broadcasting Act of 2000 by commissioning the MITRE Report to test if there was significant interference from LPFM stations on the full-power stations, the study showed that the interference of LPFM is minimal and would not have a significant effect on other stations.[13] According to Sen. Leahy, "This bill will open up the airwaves to truly local broadcasting while protecting full-power broadcasters from unreasonable interference and preserving important services such as reading services for the blind."[14]
This bill was an update of the Local Community Radio Act of 2007. It would have required the FCC to alter current rules by removing the minimum frequency separation between low-power FM stations and third-adjacent channel stations.[16] Previously, there was a minimum frequency separation; however the FCC found that LPFM stations did not cause any interference on third-adjacent channel stations, thus eliminating the need for such a requirement.[17]
In general, the FCC was to modify its rules to eliminate third-adjacent minimum frequency separation requirements between low-power FM stations; and full-service FM stations, FM translator stations, and FM booster stations.
Unlike the former FM class D license, an LPFM station has no priority over broadcast translators in the allocation of available spectrum. This is problematic insofar as the regulations for broadcast translators exempts non-commercial stations from the requirement that translators be within the coverage area of the original station that they rebroadcast. However, this provision only affects translators in the non-commercial portion of the band. Stations in the commercial part of the spectrum must be fed over the air unless they are within the actual service area of the primary station. Since the translator window of 2003 was only open for commercial channels, the use of directly-fed via satellite FM translators, commonly called "Satellators", was never a factor in the 2003 window.
In May 2018, several groups supporting community-based low-power FM stations filed objections with the FCC, citing the Local Community Radio Act, accusing it of favoring existing station coverage expansion with translator licenses - "a spectrum grab" - over new LPFM spectrum licenses.[34][35][36]
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