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Basic Kit |
Deluxe Kit
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Price |
SOLD OUT |
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Lead Time |
5 Days |
15 Days |
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Shipping |
$3.99 (US) |
$4.99 (US) |
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Sales Tax |
None, except Nevada |
None, except Nevada |
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LCD Included |
None |
Choice of 7 Segment or
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DDS Chip |
Not included |
Included and Soldered to PCB |
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Number of Surface mount parts to solder |
1 |
none |
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Programmed micro with universal LCD driver F/W |
Included |
Included |
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Top Quality US made PCB with plated through holes and silkscreen. |
Included |
Included |
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Encoder |
Mechanical |
Mechanical w/ Push Switch |
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80MHz Master Oscillator |
Included |
Included |
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Rig Control |
RS232 |
RS232 |
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Step Size |
1Hz |
1Hz |
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Tuning Speed |
Fast and Smooth like analog VFO |
Fast and Smooth like analog VFO |
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Freq Range |
0.1 to 32MHz |
0.1 to 32MHz |
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Features |
RIT, FSK, PSK, VFO A/B, 10 Memories |
RIT, FSK, PSK, VFO A/B, 10 Memories |
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IF Offset, One per memory band, VFO+IF, VFO-IF, or IF-VFO |
Included |
Included |
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User Settable EEPROM Parameters |
Yes |
Yes |
Info on Buffer Amp
Used Metal Optical Encoder Info (sold out)
New Plastic Optical Encoder Info (Sold out)
1) 1Hz step size. This was the most requested improvement, and this chip has it. Furthermore the LCD will display the frequency with 1 Hz resolution. I'm going to set the step size to something higher than that, but those of you who demand precision will be able to change the default step size. The LCD display will show 9 digits of frequency (a sign, 2 megahertz digits, 3 kilohertz digits, and 3 Hz digits.
2) No (or very little) overclocking. All these kits will be shipped with 80MHz clock modules. This along with an improved output filter will allow operation up to 34MHz.
3) Fast RIT and FSK. This chip has two frequency registers, and there is a direct connection to select between the two. Switching is instantaneous and phase continuous, you can use it with CW QSK and even FSK (RTTY) is you want. The push switch on the rotary encoder allows you to set the RIT offset, tuning speed, and calibration.
4) Vastly improved Encoder tuning.
The dial now operates much like an analog VFO dial. I have
an acceleration algorithm that works very nicely, so the push switch
for speedup is no longer required. New debounce and other changes
make the action smooth like an optical encoder using an inexpensive
mechanical encoder. There is no lag for the LCD, and no queuing,
no glitches, and catch-up.
5) Phase continuos frequency changes. The old chip had to be turned off then back on for a frequency change. So there was a brief but noticeable glitch. The new chip has phase continuous frequency changes meaning than the instant a new frequency is selected, the output waveform continues smoothly by sloping and the proper rate for the new frequency
Feature |
DDS |
DDS2 |
Maximum Output Frequency |
20 or 30 MHz |
34MHz |
Step Size |
10Hz |
1Hz |
LCD Display Resolution |
100Hz |
1Hz |
Tuning Speed |
500ms per step |
Instantaneous |
RIT |
None |
+/- 1Hz to +/- 10MHz |
QSK support |
No |
Yes |
LCD update lag |
500ms |
not perceivable. |
Cost |
$50 to $70 |
$45 to $85 |
Tuning |
Discontinuous (glitch) |
Phase continuous (no glitch) |
Number of Surface mount parts |
1 16Pin TSSOP |
1 20Pin TSSOP |
Memories |
10 |
10 |
A/B VFO |
Yes |
Yes |
FSK and PSK support |
None |
Yes |
LCD Included |
Yes |
Yes |
Works with 3rd party LCDs |
Yes |
Yes |
Encoder Included |
Yes |
Yes |
Chip Used |
AD5932 |
AD9834 |