Topics

I have another KAT500 question

Jerry
 

GM All again,

 

I have another question about the KAT500.

 

Does anyone know how many memory (frequency/Ant solutions) slots there are in a KAT500? Put another way, If I started at 3.0 mhz and for every 1 khz increase in frequency (without regard for amateur radio bands upper and lower limits), how far up the spectrum would I get until the KAT500 would not store anymore solutions?.

 

 

Best regards and Happy Thanksgiving,

 

Jerry, W1IE

 

 

Bob McGraw - K4TAX
 

Depending on frequency.    Below 3 MHz each segment is 10 kHz wide.  Then 3 MHz through 26 MHz each segment is 100 kHz wide.  From 38 MHz to 60 MHz each segment is 200 KHz wide.  {re: O/M manual page 16}   I'm not then sure of the rational for 1 kHz points.

73

Bob, K4TAX

On 11/27/2019 9:42 AM, Jerry wrote:

GM All again,

 

I have another question about the KAT500.

 

Does anyone know how many memory (frequency/Ant solutions) slots there are in a KAT500? Put another way, If I started at 3.0 mhz and for every 1 khz increase in frequency (without regard for amateur radio bands upper and lower limits), how far up the spectrum would I get until the KAT500 would not store anymore solutions?.

 

 

Best regards and Happy Thanksgiving,

 

Jerry, W1IE

 

 

David Box
 

Jerry

You should look at the section the KAT500 manual,  the memory is based on a frequency segment the width of the segment is bank dependent. I did not include but the KPA1500 manual also includes a list of all segments outside the amateur bands so you might grab a copy of the KPA1500 manual of the E site and look at it in the appendix area.  Not sure if the KAT500 and KPA1500 are identical in this regard but a starting point.

de Dave K5MWR


For the KAT500 the manual says that

Since retuning is normally required over a narrower frequency range on the lower frequencies to maintain
a low SWR, the lower frequencies have narrower segments assigned as follows:
 Below 3 MHz the segments are 10 kHz wide.
 From 3 MHz through 26 MHz the segments are 20 kHz wide.
 From 26 MHz to 38 MHz the segments are 100 kHz wide.
 From 38 MHz to 60 MHz the segments are 200 kHz wide.
The KAT500 also stores the antenna output that you selected for each band.

In the KAT500 manual they don't give the center frequencies of each segment but in the KPA1500 manual they do.  Since both use the same number of band segments then the center frequencies should be the same.  Pasted below are the segment center frequencies for each band and these should be what you use to "train" the tuner.

Appendix A — KPA1500 Tuner Frequency Segments
Information presented in this section applies to KPA1500 capability and is subject to changes. The segment
center frequencies shown are not necessarily legal for transmission. Always comply with the amateur radio rules
and regulations in your area.
KPA1500 ATU Segment Center Frequencies – All Segments
160 Meters, 10 kHz Steps
 1.805 1.815 1.825 1.835 1.845 1.855 1.865 1.875 1.885 1.895 1.905 1.915 1.925
 1.935 1.945 1.955 1.965 1.975 1.985 1.995
80 Meters, 10 kHz Steps
3.505 3.515 3.525 3.535 3.545 3.555 3.565 3.575 3.585 3.595 3.605 3.615 3.625
 3.635 3.645 3.655 3.665 3.675 3.685 3.695 3.705 3.715 3.725 3.735 3.745 3.755
 3.765 3.775 3.785 3.795 3.805 3.815 3.825 3.835 3.845 3.855 3.865 3.875 3.885
 3.895 3.905 3.915 3.925 3.935 3.945 3.955 3.965 3.975 3.985 3.995
60 Meters, 20 kHz Steps
5.330 5.350 5.370 5.390 5.410
40 Meters, 20 kHz Steps
7.010 7.030 7.050 7.070 7.090 7.110 7.130 7.150 7.170 7.190 7.210 7.230 7.250
 7.270 7.290
30 Meters, 20 kHz Steps
10.110 10.130 10.150
20 Meters, 20 kHz Steps
14.010 14.030 14.050 14.070 14.090 14.110 14.130 14.150 14.170 14.190 14.210 14.230
 14.250 14.270 14.290 14.310 14.330 14.350
17 Meters, 20 kHz Steps
18.070 18.090 18.110 18.130 18.150 18.168
15 Meters, 20 kHz Steps
21.010 21.030 21.050 21.070 21.090 21.110 21.130 21.150 21.170 21.190 21.210 21.230
 21.250 21.270 21.290 21.310 21.330 21.350 21.370 21.390 21.410 21.430 21.450
12 Meters, 20 kHz Steps
24.890 24.910 24.930 24.950 24.970 24.990
10 Meters, 100 kHz Steps
28.050 28.150 28.250 28.350 28.450 28.550 28.650 28.750 28.850 28.950 29.050 29.150
 29.250 29.350 29.450 29.550 29.650

On 11/27/2019 09:42, Jerry wrote:

GM All again,

 

I have another question about the KAT500.

 

Does anyone know how many memory (frequency/Ant solutions) slots there are in a KAT500? Put another way, If I started at 3.0 mhz and for every 1 khz increase in frequency (without regard for amateur radio bands upper and lower limits), how far up the spectrum would I get until the KAT500 would not store anymore solutions?.

 

 

Best regards and Happy Thanksgiving,

 

Jerry, W1IE