16 TROUBLESHOOTING
Problem | Probable Cause |
| Corrective Action | Page |
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No signals are | 1 The SQL control is fully clockwise. | 1 | Turn the SQL control counterclockwise. | 19 |
received or receive | 2 The Attenuator function is ON. | 2 | Press [ATT/PRE/ ANT1/2] until “ATT” | 61 |
sensitivity seems |
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| and “PRE” disappear. |
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poor. | 3 Mic [PTT] is pressed. | 3 | Release Mic [PTT]. | 20 |
| 4 The IF filter bandwidth was | 4 | Review “DSP FILTERS”, “CHANGING | 45, |
| incorrectly set. |
| THE IF FILTER BANDWIDTH” and set | 46 |
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| the controls accordingly. |
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| 5 The wrong antenna connector | 5 | Press [ATT/PRE/ ANT1/2] (1 s) to |
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| (ANT 1 or ANT 2) was selected. |
| select the other antenna connector. | 60 |
| 6 The preamplifier is OFF. | 6 | Press [ATT/PRE/ ANT1/2] to switch |
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| the function ON. | 49 |
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No signals are | The RF gain was set too low. | Press [MIC/ 5/ RF.G] (1 s) and turn the | 18 | |
received or receive |
| MULTI control clockwise to increase the |
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sensitivity seems |
| RF gain. |
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poor; |
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reading full scale. |
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Received signals | The wrong modulation mode was | Press [MODE] or [MODE] (1 s) to select | 19 | |
are totally | selected. | the correct modulation mode. |
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unintelligible. |
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Memory Scan will | 1 The SQL control was not set | 1 Adjust the SQL control to just eliminate | 19 | |
not start scanning. | correctly. |
| background noise. |
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| 2 Less than 2 memory channels were | 2 Unlock at least 2 memory channels. | 54 | |
| unlocked. |
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| 3 Less than 2 memory channels were | 3 Store data in at least 2 memory | 50 | |
| programmed. |
| channels. |
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Memory Scan will | With Group Scan selected, the channel | Select the Memory Group that contains | 59 | |
not scan one of the | you want to scan is in a different group. | the memory channel you want to scan. |
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stored channels; the |
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desired channel is |
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NOT locked out. |
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Program Scan will | The start and end frequencies are | Store different start and end frequencies. | 53 | |
not start scanning. | identical. |
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AT does not finish | The impedance of the coaxial cable and | Adjust the antenna system to lower the | 60 | |
successfully | antenna was not matched. | SWR. |
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Tuning does not successfully finish |
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depending on conditions although the |
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SWR meter indicates smaller than 3:1. |
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The internal tuner is | The SWR of the antenna system is too | Adjust the antenna system to lower the | 60 | |
bypassed | high. | SWR. |
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immediately after |
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tuning is started. |
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You cannot transmit | 1 The microphone plug was not | 1 | Turn OFF the power, ensure the MIC | 6 |
even though you | inserted completely into the MIC |
| connector has no foreign objects in it, |
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press Mic [PTT] or | connector. |
| then plug in the connector firmly. |
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transmissions result | 2 The Transmit Inhibit function is ON. | 2 | Change Menu No. 55 to OFF. | 38 |
in no contacts. | 3 CW or FSK was selected instead of | 3 | Press [MODE] to select a voice mode. | 19 |
| a voice mode. |
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| 4 The DSP TX filter bandwidth was | 4 | Adjust the settings in Menu No. 20. | 38 |
| inproperly selected. |
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| 5 The wrong antenna connector | 5 | Press [ATT/PRE/ ANT1/2] (1 s) to | 60 |
| (ANT 1 or ANT 2) was selected. |
| select the other antenna connector. |
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