5-2 SOFTWARE ADJUSTMENTS (TRANSMITTING)
Select an operation using [↑] / [↓] keys, then set specified value using [←] / [→] keys on the connected computer keyboard.
ADJUSTMENT |
| ADJUSTMENT CONDITION |
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| MEASUREMENT | VALUE | |||
| UNIT |
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| LOCATION | |||||
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PLL LOCK | 1 | • Operating CH | : CH3 | Soft | Check the “LV” item on the CS- | 3.5 V | |||
VOLTAGE |
| • Receiving |
| ware | F50 ADJ’s display. |
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[LV (RX LVA)] | 2 | • Operating CH | : CH3 |
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| 3.5 V |
[LV (TX LVA)] |
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| • Transmitting |
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| 3 | • Operating CH | : CH11 | Soft | Check the “LV” item on the CS- | ||||
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| • Receiving |
| ware | F50 ADJ’s display. |
| (Verify) | ||
| 4 | • Operating CH | : CH11 |
| Connect a digital multimeter to | ||||
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| • Transmitting |
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| the “LV” line. |
| (Verify) | ||
REFERENCE | 1 | • Operating CH | : CH3 | Top | Loosely | couple a | frequency | 174.0000 MHz | |
FREQUENCY |
| • Connect an RF power meter or 50 Ω | panel | counter to the antenna connec- |
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[REF] |
| dummy load to the antenna connector. |
| tor. |
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| • Transmitting |
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OUTPUT | 1 | • Operating CH | : CH1 | Top | Connect an RF power meter to | 5.0 W | |||
POWER |
| • Transmitting |
| panel | the antenna connector. |
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[Power (Hi)] |
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[Power (L2)] | 2 | • Operating CH | : CH2 |
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| 2.0 W |
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| • Transmitting |
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[Power (L1)] | 3 | • Operating CH | : CH3 |
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| 1.0 W |
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| • Transmitting |
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FM | 1 | • Operating CH | : CH7 | Top | Connect an FM deviation meter | ±2.10 kHz | |||
DEVIATION |
| • Set the FM deviation meter as: | panel | to | the | antenna | connector |
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[MOD N] |
| HPF | : OFF |
| through the attenuator. |
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(Narrow) |
| LPF | : 20 kHz |
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| : OFF |
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| Detector | : |
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| • Connect the audio generator to the multi |
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| connector through the JIG cable (*OPC- |
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| 966) and set as | : 1.0 kHz/150 mVrms |
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| • Transmitting |
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[MOD Ratio] | 2 | • Operating CH | : CH8 |
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| ±3.20 kHz |
(Middle) |
| • Transmitting |
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[MOD Ratio] | 3 | • Operating CH | : CH9 |
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| ±4.10 kHz |
(Wide) |
| • Transmitting |
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MODULATION | 1 | • Operating CH | : CH4 |
| Connect an FM deviation meter |
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BALANCE |
| • No audio applied to the [MIC] input. |
| with an oscilloscope to the |
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[BAL N] |
| • Set an FM deviation meter as: |
| antenna | connector | through an |
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(Narrow) |
| HPF | : OFF |
| attenuator. |
| Set to square wave | ||
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| LPF | : 20 kHz |
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| form |
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| : OFF |
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| Detector | : |
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| • IF bandwidth | : Narrow |
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| • Transmitting |
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[BAL Ratio] | 2 | • Operating CH | : CH5 |
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(Middle) |
| • Transmitting |
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[BAL Ratio] | 3 | • Operating CH | : CH6 |
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(Wide) |
| • Transmitting |
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CTCSS/DTCS |
| • Operating CH | : CH10 | Top | Connect an FM deviation meter | ±0.68 kHz | |||
DEVIATION |
| • No audio applied to the [MIC] input. | panel | to | the | antenna | connector |
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[CTCS/DTCS] |
| • Transmitting |
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| through the attenuator. |
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5 - 4