buffalogoat
Member
I'm sure others have asked this question but I was wondering what freqs. NEXTEL uses for their 2-way walkie talkie feature. Is it in the cell phone band or UHF-VHF?
buffalogoat said:I'm sure others have asked this question but I was wondering what freqs. NEXTEL uses for their 2-way walkie talkie feature. Is it in the cell phone band or UHF-VHF?
n1das said:NEXTEL's 2-way DirectConnect feature works through the NEXTEL network with the tower sites transmitting in the 851-866 range and with the phones transmitting 45MHz below that. It's the same network NEXTEL phones use for making and receiving phone calls like a cell phone.
NEXTEL's off-network DirectTalk feature (on DT capable NEXTEL phones) works simplex between phones in range in the 902-928MHz band and is Frequency-Hopping Digital Spread-Spectrum (don't bother trying to hear it on a scanner). The DT feature uses the whole 902-928 band (I've looked at it on a spectrum analyzer). The DT feature is operating under Part 15 rules in the 902-928 band. I've found from experience that the usable DT range is about the same as local Family Radio Service (FRS) coverage between a pair of FRS handhelds.
LarrySC said:And dont forget: NEXTEL owns the FCC.
Search is your friend.buffalogoat said:I'm sure others have asked this question but I was wondering what freqs. NEXTEL uses for their 2-way walkie talkie feature. Is it in the cell phone band or UHF-VHF?
How many times per second does the frequency change ? Out of all the NEXTEL phones that exist in the world, how do only 2+ phones "know" when to switch to what frequency?n1das said:NEXTEL's off-network DirectTalk feature (on DT capable NEXTEL phones) works simplex between phones in range in the 902-928MHz band and is Frequency-Hopping Digital Spread-Spectrum (don't bother trying to hear it on a scanner).
It is time for some reading.JohnnyGalaga said:How many times per second does the frequency change ? Out of all the NEXTEL phones that exist in the world, how do only 2+ phones "know" when to switch to what frequency?