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Author Topic: My TS 570 will not do cw  (Read 750 times)
W4FDS
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Posts: 22




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« on: June 19, 2016, 05:34:55 PM »

When I put my ts570 on CW with vox on and try and send cw as soon as I hit my manual key it shuts the radio down. I am running it into a dummy load and I tune it into the dummy load to make sure I don't have high swr. Tried it on 75 meter dipole and another dummy load with the same results. On phone the radio is ok. Any ideas??

Franklin w4Fds
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KA5IPF
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« Reply #1 on: June 19, 2016, 06:57:07 PM »

Fix your power supply or power cord problem. Voltage to the radio is dropping too much.
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PA1ZP
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Posts: 513




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« Reply #2 on: June 20, 2016, 09:06:04 AM »

Hi Franklin

Try with 5 watts first and increase power slowly if you rig shitus down at a certain power I do agree it would be a power cord or power supply issue.

Could even be as simple as oxidised fuses or holders.
Or loose connectors in the power cord plug at the rig, or to high resistance at the power supply power poles.
Had this with my FT857D and with an old Kenwood.

It is a very well known issue with all 13.8 V  DC rigs, with all Japanese rigs.

73 Jos
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W4FDS
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Posts: 22




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« Reply #3 on: June 20, 2016, 10:05:11 AM »

 Thanks fellows you hit the nail on the head. I just tried it with a different 25 amp supply and it worked fine.

  Franklin W4fds
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