Expert Technology Studios LLC BST1 Manual De Usuario
12
To single step in TUNE mode, momentarily press the top button. Depending on the tuning
direction, it will tune up or down in 5 KHz steps each time the button is pressed. Use this
method to find a station that you may want to later save in PRESET memory, as explained in
Section 3.12.
4.7 SENSITIVITY CONTROL
In some circumstances, very strong signals may be audible in the background of a much weaker,
desired signal. To improve reception of the weaker signal, in most cases this can be obtained by
adjusting the BST-1 for low sensitivity. This is accomplished by holding down the top button for
1 "beep", which will toggle the sensitivity between HIGH (most sensitive) and LOW (reduced
sensitivity). The Morse code “H” (dit dit dit dit) or “L”(dit dah dit dit) will be sent to indicate
status and the RDS display will momentarily read “HI SENSE” or “LO SENSE”.
4.8 RECEIVER BANDWIDTH
Holding down the bottom button for 3 "beeps", will toggle the receiver bandwidth for speech or
for music reception. The display will momentarily indicate SPEECH or MUSIC as each selection is
made. There is no Morse code annunciation of this selection. By listening to the audio, one can
hear the difference in audio response, especially with music content.
4.9 CHANGING FM TRANSMIT FREQUENCY
To automatically cycle the FM transmitter frequency between 88.3, 88.5, 88.7 and 88.9 MHz,
hold down the bottom button through the 1 and 2 and 3 "beep" alerts for about 7 seconds until
you hear the 4
th
beep and then the Morse Code letters "FM". Then release and the BST-1 will
then beginning scanning through the 4 FM channels. Retune your FM radio to the desired clear
frequency of the possible 4 channels. You will hear a distinctive beeping sound when it tunes to
the FM frequency you have selected on your car radio. When you hear it stop on the channel,
momentarily press any button to stop it. If you don’t press any button, it will continue the
scanning and return to that channel in about 12 seconds. Once a new channel is selected, the
BST-1 will always power up on the last chosen FM frequency.
4.10 MORSE CODE ANNUNCIATION
To annunciate the current frequency in Morse code, hold down the top button though the 1
"beep" and until you hear the distinctive two "beeps", then release. You will hear the frequency
annunciated in Morse code.
On any channel, the first annunciation of Morse code also disables the "S meter" updates,
freezing the current display and also unmuting the audio. This will eliminate any pulsating noise
that may be heard as a result of internal oscillators in the BST-1. The "S Meter" can be turned
on again by activating the Morse Code again or activating any other button on the key fob, for
instance receiver bandwidth or the up/down function.
4.11 QUICK TUNE TO WWV
To quick tune to Channel 50 which contains WWV time station on 5 MHz, hold down the top
button for about 3 seconds. Hold down through the one and two beep alerts and then release