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FM frequency assignment is not a simple matter. See https://en.wikipedia.org/wiki/FM_broadcasting_in_the_United_States: "In the United States, frequency-modulated broadcasting stations operate in a frequency band extending from 87.8 MHz to 108.0 MHz," But you might want to read the remainder of this Wikipedia article; it explains how this frequency is almost always used by TV stations (which use the FM band for their audio). Or, you may want to Google "87.7 FM" for more insight; that search turned up a station in Boston and one in Chicago supposedly operating on the 87.7 frequency. But your best bet would be to contact that station and ask them how to receive their broadcasts; I'm sure this wouldn't be the first time someone has had this problem.
either you need a better antenna, need to re-orient the antenna towards your broadcast stations, or re-scan for channels. Many stations went to UHF frequencies, and the large Vv and smaller type antennae won't get those frequencies as well.. UHFantennae are a lot smaller, with several parallel elements.
If there is more than one Radio Controlled (RC) devices operating on the same radio control frequency operating in the same proximity - there's going to be an issue for one or both devices. Simple, inexpensive RC devices operating on the same frequency have no way of being "paired" (like a bluetooth device to a phone) to a particular controller (more expensive devices and controllers have sophisticated ways to get around this limitation by setting codes that allow the device to respond to only the matching controller). You would need to have both the control and device on a new frequency that is different from other RC devices to retain control of the device - otherwise once the device gets close enough to the other controller - it will begin responding to it instead of yours.
In order to use your RC device, you'll need to remain closer to your device than the other controller is. This makes your controller's signal more powerful and should overcome the more distant controller signal. Keep in mind that your range of control will be reduced as the signal suffers from interference from the other controller - much like driving in your car listening to the radio that has 2 broadcasters on the same frequency. While close to home, you hear your local station clearly - but as you get further from the local station, there is an area where the signal from the other station overlaps with your local station - making understanding what is being broadcast by either station completely unintelligible. You have to tune away or shut off the radio until you're closer to one station or the other. Had there been no second station on the same frequency - or had been travelling in a different direction, you might have been able to listen to your local station for the whole trip. The same holds true for your RC device. In an open area alone - you may have control for 200 feet. But in an area with another RC controller operating on the same frequency as yours, that distance may plummet to just 50 feet. The more distance there is between RC controllers and devices competing for the use of the same frequency - the better the experience will be.
Here's the relevant instructions out of the manual.
Storing and recalling broadcast
You can easily store up to six broadcast frequencies for later recall.
! Six stations for each band can be stored in
1 Press LIST.
Preset screen is displayed.
2 Use MULTI-CONTROL to store the selected frequency in memory.
Turn to change the preset number. Press and
hold to store.
# You can also store the frequency in memory
by pushing and holding MULTI-CONTROL right.
3 Use MULTI-CONTROL to select the desired station.
Turn to change the station. Press to select.
# You can also change the station by pushing
MULTI-CONTROL up or down.
# To return to the ordinary display, press
BAND/ESC or LIST.
# If you do not operate the list within about 30
seconds, the display automatically returns to the
You can find the full manual here: http://www.pioneerelectronics.com/StaticFiles/PUSA/Files/DEHP4000UBOperationManual1019.pdf
It will only tune into odd numbered stations because US radio station only broadcast in odd number stations (ex 95.5,95.7,96.3). You can change the area. Area 1 is North America, Area 2 is other areas. Press "Menu"->"Setup"->"Tuner"->"Tuner Area", then select 1 or 2. After setting, press and hold "Menu" for at least 2 seconds. This may give you the frequency you are looking for.
Storing and recalling broadcastfrequenciesYou can easily store up to six broadcast fre-quencies for later recall.! Six stations for each band can be stored inmemory.1 Press LIST.Preset screen is displayed.2 Use MULTI-CONTROL to store the se-lected frequency in memory.Turn to change the preset number. Press andhold to store.# You can also store the frequency in memoryby pushing and holding MULTI-CONTROL right.3 Use MULTI-CONTROL to select the de-sired station.Turn to change the station. Press to select.# You can also change the station by pushingMULTI-CONTROL up or down.# To return to the ordinary display, pressBAND/ESC or LIST.# If you do not operate the list within about 30seconds, the display automatically returns to theordinary display
Depending on the age of the VCR it will have either a small screw on the back near the aerial socket, or the adjustment will be on a onscreen menu somewhere. It will be called the "RF OUTPUT".
They way to do them is for the screw type - turn it slightly - then with a video playing (something that you can tell what to look for) retune your TV. You might need to do this several times to get clear of stations.
With the menu type you just need to enter a RF number. This is often the best type as most VCR's give you the full RF range. Whereas the screw will only be a short range. Enter a RF frequency number which will be well away from broadcast stations. You can find which TV stations broadcast on the frequences in your area by looking it up in Google. Once entered, play a video and retune the TV to it.
Some VCR's allow the output to be switched off. You can use this option if you have the VCR connected via a scart lead. As you don't need to have the TV tuned in to the VCR.
Car cradle works "wirelessly" with Car Radio (inherent design of unit). Place Unit in Cradle; connect Cradle to Auto Power Source, and SkyFi3 should power on. Press Menu to Get FM Radio station channels; select a lower station Channel Frequency i.e. 88.3 or any vacant channel number and the signal should transfer to your Radio speakers automatically. You can change Station frequencies as often as you need to do so--for example if traveling through different broadcast areas, some channels frequencies are clearer than others.
It may be possible that the FM frequency chosen during setup, is in use in your area by a strong signal from a local station. Change to another frequency and see if the situation improves.
The following is from the Operation's Manual:
FM Modulator Setting
You can adjust FM Modulator frequency and output level.
If output from the FM Modulator is hard to hear due to interference from a strong broadcast
station transmission, you can switch to another frequency.
You can adjust frequency between 87.9 and 90.1MHz.
If the output sound is too quiet, too loud or distorted, you can adjust FM Modulator output
You can adjust level between “LEVEL–1” and “LEVEL–7”. 1. Press the POWER button for 2 seconds to enter the FM Modulator Setting mode.
2. Select the desired frequency with the left/right arrowbuttons.
3. Increase or decrease the Level with the up/down arrows (buttons).
4. To cancel the FM Modulator Setting mode, press the POWER button again for 2 seconds. Note:
• After entering the FM Modulator Setting mode, if you do not perform an operation within about 8 seconds, the FM Modulator Setting is automatically canceled.