Ad9850 S-led Display Dds Signal Generator 0-55mhz Vfo Ssb Board Test Equipment

US $76.99

Hong Kong, China
Jul 15th

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AD9850 S-LED Display DDS Signal Generator 0-55MHz VFO SSB Board Test Equipment Shortwave Module Wave Band For Digital HAM Radio 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_FREQSetting 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_FREQSetting 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_OFFSETFine 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_OFFSETFine 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_FREQSetting 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

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Model	3694845657
Display Size	3.0 - 4.9 Inches
Country/Region of Manufacture	China
DIY Supplies	ELECTRICAL
MPN	Does not apply
Material	PCB
Brand	Woopower
Origin	CN(Origin)
Certification	None
UPC	Does not apply