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Author Topic: kenwood ts-590s Frequency Recalibration  (Read 2859 times)
ZS5WC
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Posts: 410


WWW

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« on: February 08, 2013, 09:22:51 PM »

 Huh My TS-590s is slightly off Frequency--i.e. on 20m a signal on 14.200 will be best resolved on 14.200.1 .
This goes for all bands and gets worse towards 6m.
Should I trim the TC beneath the radio, or adjust the carrier insertion points in the SERVICE menu?.
I am a bit worried to fiddle in the service menu since there are THREE insertion points to adjust.
I checked the transmitted AM signal with a frequency counter and that seems to be 50HZ LOW.

So hence my confusion.

73 de William
ZS5WC / ZS4L
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W8JX
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Posts: 5492




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« Reply #1 on: February 08, 2013, 09:29:27 PM »

First I would warm rig up for 45 min or so and then I would check it against WWV not a generator or anther 20m signal then go from there. After 13 years my 570 is only off about 40hz at 15 mhz last time I checked and it has never been tweaked.
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KE3WD
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Posts: 5694




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« Reply #2 on: February 09, 2013, 12:31:15 PM »

Since it is off by the same amount on all bands, don't go inside, don't apply the golden screwdriver there, for it is very likely already correct. 

Simply adjust the accessible single cap by zero beating to WWV.  See the manual for particulars. 


73
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ZS5WC
Member

Posts: 410


WWW

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« Reply #3 on: February 10, 2013, 05:25:57 AM »

 Smiley Thanks for the replies ,

I reset the TEENY TINY master oscillator trimmer, whilst using the FT-450d as a frequency reference, and now all band indications are spot on.

73!
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W8JX
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« Reply #4 on: February 10, 2013, 05:39:05 AM »

Smiley Thanks for the replies ,

I reset the TEENY TINY master oscillator trimmer, whilst using the FT-450d as a frequency reference, and now all band indications are spot on.

73!

Why would you use a questionable reference?  WWV is what you use for this not another rig.
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AC5UP
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Posts: 3825




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« Reply #5 on: February 10, 2013, 05:59:57 AM »

ZRA-ZUZ South Africa (Republic of) (Also See S8)  ZS Callsign Zones

...... ZR, ZS, ZT, ZU So Africa (ITU Zone 57 CQ Zone 38) [lat -30 long 25.8] {start 11/15/45}
...... ...... ZS1 Cape Province
...... ...... ZS2 Eastern Cape Province
...... ...... ZS3 Northern Cape Province
...... ...... ZS4 Freestate Province
...... ...... ZS5 Kwazulu-Natal Province
...... ...... ZS6 Gauteng / Mpumalanga
              ZS7 Antarctica
              ZS8 Marion Is (ITU Zone 57 CQ Zone 38 [lat -46.8 long 37.8] {start 11/15/45}

http://www.ac6v.com/prefixes.htm#Z
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W8JX
Member

Posts: 5492




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« Reply #6 on: February 10, 2013, 09:12:36 AM »

ZRA-ZUZ South Africa (Republic of) (Also See S8)  ZS Callsign Zones

...... ZR, ZS, ZT, ZU So Africa (ITU Zone 57 CQ Zone 38) [lat -30 long 25.8] {start 11/15/45}
...... ...... ZS1 Cape Province
...... ...... ZS2 Eastern Cape Province
...... ...... ZS3 Northern Cape Province
...... ...... ZS4 Freestate Province
...... ...... ZS5 Kwazulu-Natal Province
...... ...... ZS6 Gauteng / Mpumalanga
              ZS7 Antarctica
              ZS8 Marion Is (ITU Zone 57 CQ Zone 38 [lat -46.8 long 37.8] {start 11/15/45}

http://www.ac6v.com/prefixes.htm#Z

I know where he is at as far as using WWV but given that they transmit on 2.5, 5, 10, 15, 20 and 25 mhz you would here it or WWVH out of Hawaii sometime. 
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ZS5WC
Member

Posts: 410


WWW

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« Reply #7 on: February 11, 2013, 08:25:31 AM »

 Huh It Works--the end result was the same, I listened to WWV on 10Mhz and it is spot on.
NO complaints here..

73
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