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Re: Radio set up on samsung j700
FM radio works the same way that AM radio works. The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM, the frequency (the number of times each second that the current changes direction) of the carrier signal is varied.
FM signals have a great advantage over AM signals. Both signals are susceptible to slight changes in amplitude. With an AM broadcast, these changes result in static. With an FM broadcast, slight changes in amplitude don't matter -- since the audio signal is conveyed through changes in frequency, the FM receiver can just ignore changes in amplitude. The result: no static at all.
For sellecting frenquencies, go to radio, options, set frequency and search...
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It may be due to the radio frequencies that Optus use being not be compatible with the Samsung sgh-a412 available operating radio frequency range. TThe mobile data radio frequencies may be different and the phone might not work on the radio frequencies used by Optus.
The Federal Government sells radio frequencies to each carrier to use and there may be a problem with the Samsung-a412 working on the Optus allocated radio frequencies assigned to Optus.
from further research on my part
The phone you have uses utms 850 mega hertz radio frequency G3 mobile data and this frequency band is not used by optus they use utms 900 mega hertz radio frequency G3 mobile data .
I was never too fond of Jimmy young however Try switching of unplugging for a few mins then try a new auto scan this will search for available frequencies ,which I hope picks up Radio 2 in your case..Good luck
If I am not mistaken the TK 768 can only operate in a channel based manner as it is a land mobile radio, not a ham radio. The TK line is Kenwoods Land Mobile ( commercial trucks, taxi cabs and so on) line. these radios are meant to be operated on specific frequencies that are limited and assigned by the FCC . While the can be reprogrammed for ham radio frequencies legally, being designed for land mobile use, they are limited to the single fequency/frequency pair programmed into the channelized set up they use.
Rule of thumb: Height and placement of the antenna determines the range. If your FCC license allows, raise the antenna.
As for types of antennas, there are a variety depending on the situation. (Too many to list.) Common would be Unity Gain (aka quarterwave), 3db gain and 5 db gain. Each has their own advantages according to placement and terrian. Talke to your local radio professional or call one of the experienced online companies to get some advice according to your particular situation.
Lastly, be certain your antenna is tuned to the frequency you are using. This alone can add range to your radio.
Big Knob settings from left to right... First knobset...inner turn "volume" fully clockwise ... outer "squelch" fully counterclockwise Second knobset...both inner and outer knobs fully clockwise Third knob...chose which mode you want to use...Am or Fm (If your radio has been modified to TX/RX CB frequencies, chose AM) Fourth knob...chose your band (If your radio has been modified to TX/RX CB frequencies, chose band D/A) The only other knob that is important is the high/low power switch. It selects the band from the pair chosen by the band knob. I don't know if band D corresponds to high or low, so try both settings until one works.
If you can't TX or RX with these settings either there is no one talking at that time or your radio, antenna, or cable might be defective. You should get a copy of the owners manual to fully learn how to chose bands and adjust the settings. I've given you a starting point that should work but may not be optimum for all conditions.
Most radios made in American have fixed tuners and do not have a way to change frequency of the radio. If they use the same FM frequencies (88.1-108.0) then all you have to do is do a scan or seek of what is available when you get there or a new radio will be needed. There may be a way to add a EU tuner and have the original radio receive the output of it through a channel in the radio. It's the cheapest way to not have to buy a new NAV/RADIO device. It would work kind of like the hands free devices that are not hardwired do here.