Описание
Features:1. This is a 0~55MHz DDS Signal Generator. It is based on AD9850 chip and is very easy to operate.
2. Finished product, DDS, digital direct input frequency, with the volume potentiometer potentiometer,
amplifier acquire bandwidth potentiometer, AGC potentiometer, S - LED table display, a standing wave - LED table display.
3. Supports 0~55MHz continual adjust at 1Hz step.
4. Input: 12v. Output: 12v.
Specifications:
Material: PCB
Color: red
Input: 12v
Output: 12v
ENC: encoder switch
MEM: switch for memory mode
VFO: Transfer from VFO A to VFO B, or from VFO B to VFO A.
SSB: Working mode change: circulate from USB, LSB, AM, CW, and on and on
RIT: fine tuning to receiving frequency
CAL: set functions
KB-1 and KB-2 have common shared pin, but is not GND
Package Included:
1 PC x DDS Signal Generator
How to operate:
Press CAL, power on, then we enter setting screen. Let go/release CAL.
A: ENABLE 6XREFCLE: setting chip clock mode, adjust frequency encoding setting. AD9851 set to 6-multiply frequency,
AD9850 set to 1multiply frequency. Press CAL then quickly release to enter following step B.
B: DDS-SYSTEM-CLK: Chip working frequency setting. Use encoder switch to adjust value. Operate in accordance with STEP key.
AD9851 set at oscillator 6-multiply channel, AD9850 set at actual output of oscillator. Press CAL then quickly release to enter step C.
C: MIN_RX_DDS_FREQ：Setting minimum working frequency. Use encoder switch to adjust value and in accordance with STEP key.
Press CAL then quickly release to enter step D.
D: MAX_RX_DDS_FREQ：Setting maximum working frequency. Use encoder switch to adjust value and in accordance with STEP key.
(Smaller than 60MHz would be OK ). Press CAL then quickly release to enter step E.
E: SSB_OFFSET：Fine tuning for SSB working mode. Use encoder switch to adjust value and in accordance with STEP key.
Press CAL then quickly release to enter step F.
F: CW_OFFSET：Fine tuning for CW working mode. Use encoder switch to adjust value and in accordance with STEP key.
Press CAL then quickly release to enter step G.
G: OFFSET_FREQ：Setting of offset Frequency. e.g, set to 9MHz or 10.7MHz, use encoder switch to adjust value and in accordance with STEP key.
Press CAL then quickly release to enter step H.
H: MULTIPLIER: multiply setting for frequency. Should be set as 1, press CAL then quickly release to enter step I:
I: Screen displayes word "SAVE", automatically save the above setting, and returns to normal working.
Notes:
1. DDS SYSTEM CLK: can use frequency tester to get 30MHz oscillator, multiply the tested value at 6, then put the multiplied value here.
If using AD9851, make initial setting at 180000000.
2. OFFSET FREQ: can be set as + or - . Rotate encoder switch to change value, press STEP key, then rotate encoder switch to adjust step.
Minimum working frequency plus (+) offset frequency should be high than 0 (zero).
Frequency display:
RX = MULTIPLIER x (RX_DDS_FREQ + OFFSET_FREQ)
TX = MULTIPLIER x (RX_DDS_FREQ + OFFSET_FREQ + TX_OFFSET_FREQ)
The frequency programmed into the DDS, is calculated as shown below.
RX = ABS(RX_DDS_FREQ)
TX = ABS(RX_DDS_FREQ + TX_OFFSET_FREQ)
RX_DDS_FREQ, MIN_RX_DDS_FREQ, MAX_RX_DDS_FREQ, TX_OFFSET_FREQ & OFFSET_FREQ
Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 0.5-2 cm differences due to manual measurement.
PaymentWe accept Escrow, Visa, MasterCard, Moneybookers, Western Union, ect. as payment method only. And prompt payment will be highly appreciated.
All payments must be confirmed. (Shipping and billing addresses must match).
Shipping
Usually, we will ship the item within 1-5 days after receiving the payment.
Delivery Time and Postage:
----We can offer express delivery like EMS/DHL. In normal condition, it will take about 3-7 working days via express delivery. If you want express delivery, please contact us, we will calculate the postage for you, or you can check Shipping&Packaging for reference.
We will choose a suitable delivery according to your country, as to strive for a fastest and reliable shipping for your order.
If you have not received your shipment after 60 days after we send out your order, please contact us. We will help to check the delivery information and solve the problem for you.
Please kindly notice that the buyer need to be responsible for (in case) all or VAT under any circumstances.
Feedback
We will double check all the item before and make sure they are in good condition before dispatch.
if there is any unsatisfied with our product and service, please contact us first before leaving us 1, 2, 3 rating or Neutral/Negative feedback or dispute. As you know, your feedback is very important to us and be encouraged to us, we will try to our best to fix any problems you might be having and offer you the best service.
Customer service
We strive for 100% customer satisfaction on our business, we will do our best to service every of our customer.
If any questions, please contact us first, we will do our best to response in 12 business hours.
Характеристики
- Бренд
- Woopower
- Материалы для самостоятельного изготовления
- Электрический
- Размер дисплея
- 3.0-4.9 Дюйм(ов)
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