8640Jr Bands
8640Jr Bands
My 8640Jr has 5 total bands, covering 850 Khz – 31 Mhz.
I took some measurements with the Bandspread Control in the Maximum, Minimum and Midpoint of its range.
I started with the VFO output frequencies, as all of the other bands are arrived at by dividing these frequencies down.
With the Bandspread Capacitor set to Maximum, I had a range of 13.6 Mhz to 27.858 Mhz.
Next, I set the Bandspread Capacitor at Minimum. It is clear that this affects the high end of the range much more than the low end.
Finally, I set the Bandspread cap to the approximate center of its range, and made more measurements.
Band 1 850.0000 Khz 1.9604 Mhz
Band 2 1.7008 Mhz 3.9209 Mhz
Band 3 3.4017 Mhz 7.8417 Mhz
Band 4 6.8033 Mhz 15.6835 Mhz
Band 5 13.6066 Mhz 31.3669 Mhz
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