Re: [Repeater-Builder] 900mhz , DTR, 906 to 923.75 MHz FHSS

[ANDRE]

thank all,

Yes, i am im Brazil, and we use GMRS radios but we do not need GMRS licence 
here.

I can use 900mhz dtr or UHF GRMS radios, i have both.

But here, the 900mhz is more clean than the uhf,

So i thoght to make a digital repeater for this DTR or other fhss radio, but i 
do not know any a apm, and the repeater that are FHSS (or do not need to be?)

John, will you recommend any repeater (small) GRMS?

Thanks ALL

( i do not want to buy a UHF comercial Licence  to install a big repeater only 
to me) 



  ----- Original Message ----- 
  From: Mike Morris WA6ILQ 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Saturday, November 15, 2008 3:06 PM
  Subject: Re: [Repeater-Builder] 900mhz , DTR, 906 to 923.75 MHz FHSS


  He's in Brazil.  I don't think they have GMRS there.

  Mike WA6ILQ

  At 12:57 AM 11/15/08, you wrote:



    Get yourself a GMRS license  and put up a small 462.5 75 to 462.725 
repeater and all of your family could use it.
     
    John
     
     

      ----- Original Message ----- 

      From: ANDRE 

      To: Repeater-Builder@yahoogroups.com 

      Sent: Thursday, November 13, 2008 11:44 AM

      Subject: [Repeater-Builder] 900mhz , DTR, 906 to 923.75 MHz FHSS


      Hi all,


      I have 2 motorola DTR FHSS 900mhz, and i want to bild a repeater for use 
in my farm thats near my store , 5miles.

      I know the max watts DTR are 1W, and i didnt find any Repeater or amp for 
it.


      I found 900MHz Smartamp, 10W amp that works on FHSS, so i was wondering,


      Can i use a DTR + simplex 40second rec + smartamp + antenna?


      Will this amp (its for data) - 12-103 SmartAmp Bi-Directional 900 MHz: 10 
Watt Designed for extending the range of 900 MHz wireless radio devices, this 
is particularly

      effective when used with Direct Sequence or Frequency Hopping Spread 
Spectrum. Full output power of 10 W is achieved with only 16 mW input to the

      amplifier. Above 16 mW input, the SmartAmpT attenuates the input signal 
power and maintains the output power typically at 10W. The built-in dynamic 
power sensor in SmartAmpT adjusts the Radio Frequency (RFF) power output level 
by reading the input signal power. This Automatic Gain Control (AGC) 
Technology, Teletronics' patented technology effectively making the RF 
amplifiers "Plug & Play" delivers the maximum output power at various input 
levels while keeping the

      distortion at a minimum. 


      Technical Specifications Smartamp


      Features:


      10 Watt


      Operating Range:


      902 - 928 MHz


      Operating Mode:


      Bi-directional, TDD


      Transmit Gain:


      28 dB (can be customized to 33dB)


      Frequency Response:


      ± 0.75 dB over operating range 


      Output Power:


      10 Watt (+40 dBm) nominal


      TX Input Power:


      500mW


      Receiver Gain:


      12 dB typical ±1 dB 


      Noise Figure:


      3.5 dB typical


      Connectors:


      N-type, female, 50 Ohm


      Lightning Protection:


      Quarter Wave Technology


      DC Surge Protection:


      Available


      Power Consumption:


      <2A @ 12-15 VDC (100% duty cycle)


      Operating Temperature:


      Amplifier: -30 °C to + 70 °C 

      15V DC injector: -30 °C to + 70 °C 


      will work in this way?

      or anyone knows a repeater for this digital radios(cheap please) 


      Thanks


      Mattos