Select the Micor Frequency range that matches your unit or conversion plan. Type in the frequency you wish to use for transmit or receive in the appropriate field, then click outside the box. The xtal frequency will appear! If you have a xtal and want to see the frequency where it can be used, enter the xtal frequency in the appropriate field, then click outside the box. This calculator is for experimental purposes only at the risk of the user.
| Motorola Micor Channel Element Oscillator Frequency Calculation | ||||||
|---|---|---|---|---|---|---|
| Transmitter | ||||||
| Model Number Group | Freq Band | Formula | Crystal Range (MHz) | Tx Freq Fo | Xtal Freq Fx | |
| T41RTN-T81RTN | 25-30 | Fo /6 | 4.16-5.00 | |||
| T41RTN-T81RTN | 30-36 | Fo /6 | 5.00-6.00 | |||
| T41RTN-T81RTN | 36-42 | Fo /6 | 6.00-7.00 | |||
| T41RTN-T81RTN | 42-50 | Fo /6 | 7.00-8.33 | |||
| T41RTN-T81RTN Extended | 50-54 | Fo /6 | 8.33-9.00 | |||
| T43RTN-T83RTN | 132-142 | Fo /12 | 11-14.67 | |||
| T43RTN-T83RTN | 142-150.8 | Fo /12 | 11.5-12.92 | |||
| T43RTN-T83RTN Extended | 144-148 | Fo /12 | 12.00-12.33 | |||
| T43RTN-T83RTN | 150.8-162 | Fo /12 | 12.56-14.5 | |||
| T43RTN-T83RTN Modified | 222-225 | Fo /18 | 12.33-12.5 | |||
| T44 T74 Base Units | 440-450 With Tx channel element |
Fo /36 | 12.22-12.50 | |||
| T44RTN-T74RTN* | 450-512 No offset *Uses Rx Channel element |
Fo-11.7 /24 | 18.26-20.84 | |||
| T44RTN-T74RTN* | 450-470 5 MHz offset *Uses Rx Channel element |
Fo-16.7 /24 | 18.05-18.88 | |||
| T44RTN-T74RTN* | 470-512 3 MHz offset *Uses Rx Channel element |
Fo-14.7 /24 | 18.97-20.72 | |||
| Motorola Micor Channel Element Xtal Oscillator Frequency Calculation | ||||||
| Receiver | ||||||
| Model Number Group | Freq Band | Formula | Crystal Range (MHz) | Rx Freq Fo | Xtal Freq Fx | |
| T41RTN-T81RTN | 25-30 | (Fo+5.26) /2 | 15.13-17.63 | |||
| T41RTN-T81RTN | 30-36 | (Fo+5.26) /3 | 11.75-13.75 | |||
| T41RTN-T81RTN | 36-42 | (Fo+5.26) /3 | 13.75-14.91 | |||
| T41RTN-T81RTN | 42-50 | (Fo-5.26) /3 | 12.24-14.91 | |||
| T41RTN-T81RTN Extended -Low inj | 50-54 | (Fo-5.26) /3 | 14.91-16.24 | |||
| T43RTN-T83RTN | 132-142 | (Fo+11.7) /9 | 15.96-17.07 | |||
| T43RTN-T83RTN | 142-150.8 | (Fo+11.7) /9 | 17.07-18.05 | |||
| T43RTN-T83RTN Extended -Low Inj | 144-148 | (Fo-11.7) /9 | 14.70-15.14 | |||
| T43RTN-T83RTN | 150.8-162 | (Fo-11.7) /9 | 15.45-16.70 | |||
| T43RTN-T83RTN | 162-174 | (Fo-11.7) /9 | 16.70-18.03 | |||
| T43RTN-T83RTN Modified -Low Inj | 222-225 | (Fo-11.7) /12 | 17.52-17.77 | |||
| T44RTN-T84RTN | 406-420 | (Fo+11.7) /24 | 17.48-17.98 | |||
| T44RTN-T84RTN Extended | 420-430 | (Fo+11.7) /24 | 17.98-18.40 | |||
| T44RTN-T84RTN Extended | 440-450 | (Fo+11.7) /24 | 18.82-19.23 | |||
| T44RTN-T84RTN | 450-512 | (Fo+11.7) /24 | 19.23-21.82 | |||