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Our signal
A radio station's signal is its biggest asset. The FCC authorized KGNU to use the following frequencies.
FM
KGNU's first signal is still its main signal: 88.5 MHz FM. KGNU-FM
- The transmitter is on Davidson Mesa, in Louisville, just North of South Boulder Road and East of McCaslin Blvd.
- The effective radiated power is 1300 W
- We still use the same, 1970's vintage tube transmitter
Additionally, KGNU is authorized to rebroadcast its signal through these FM translators:
- 93.7 MHz FM in Ward with translator K229AC (soon to be moved to Nederland)
Fort Collins
On 5/25/05, the Educational Media Foundation (whose slogan is "K-LOVE") went on the air in Fort Collins with an additional station: "KLHV".
Its frequency is 88.3 FM just next to KGNU's 88.5 FM.
Although its power is only 90 Watts, in Fort Collins its signal is far stronger than what remains of KGNU's signal so far from its Louisville transmitter.
Most radio receivers cannot pick up KGNU against this stronger, adjacent signal.
Additionally, KGNU's Fort Collins' translator at 89.1 FM is unable to operate, because it relies on picking up the original 88.5 FM, but it can't because KLHV's transmitter is physically located just next to KGNU's translator and overwhelms it.
KGNU has no recourse:
- KLHV is properly licensed by the FCC,
- Fort Collins is outside KGNU's primary coverage area, and
- translators have no rights against a full power radio station
So far, KGNU has not been able to find another frequency for its Fort Collins translator.
As our translator had become useless, we turned it off to save rent money for the transmission site.
Fort Collins
Help receiving our FM signal.
Help dealing with interference from our FM signal.
Approximate contour of our FM signal.
AM
KGNU has recently aquired an AM frequency from KJME: 1390 Khz AM. KGNU-AM
- The transmitter is in Englewood.
- The power is 5000 W in the daytime, 390 W at night
Help receiving our AM signal.
Help dealing with interference from our AM signal.
Approximate contour of our AM signal in the daytime.
Hours of daytime operation are from average monthly sunrise, to average monthly sunset, as defined in this table (all times are MST).
| Month |
Sunrise |
Sunset |
| Jan |
7:15 |
5:00 |
| Feb |
7:00 |
5:30 |
| Mar |
6:15 |
6:00 |
| Apr |
5:30 |
6:45 |
| May |
4:45 |
7:00 |
| Jun |
4:30 |
7:30 |
| Jul |
4:45 |
7:30 |
| Aug |
5:15 |
7:00 |
| Sep |
5:45 |
6:15 |
| Oct |
6:15 |
5:15 |
| Nov |
6:45 |
4:45 |
| Dec |
7:15 |
4:30 |
HD digital radio
KGNU broadcasts digitally (in addition to our present analog signal) on AM.
In the near future, KGNU will begin broadcasting digitally also on FM.
- You will need a special HD radio receiver, and to be within our strong signal area, to receive our digital signal.
- Presently, HD receivers are expensive, and are mostly available only for cars.
- Sorry, satellite radio receivers (XM and Sirius) do not work with HD radio.
- The sound quality of HD is comparable to a good MP3. It is better than FM because it is not scratchy. It is worse because it has some very faint digital artifacts.
- Denver is a seed market for HD radio.
- KGNU's HD conversion is costing approximatey $ 200,000.
- KGNU applied for and received 2 grants from the CPB (Corporation for Public Broadcast) to pay for 70 % of the material costs of HD conversion.
- As a side effect of installing state-of-the art transmitters, KGNU's old analog signals (AM and FM) may sound better than the present ones.
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