Description: 3 Pole Active CW Filter - Centered at 600 Hz This audio filter is intended for adding onto simpler, typically home brewed, receivers or transceivers, to improve legibility and decrease noise/QRM. While it will work well with commercially produced radios etc., this equipment tends to have much more sophisticated filtering of the IF and AF stages already built in. The filter is a 3-Pole fixed frequency active filter using op-amps. It has a center frequency of 600 Hz, and shape factor (SF) of 8:1 This filter is intended to take the audio from the speaker or headphone jack of the radio and then feed speakers or headphones with the filtered audio output. It operates from 9-15 VDC and can be powered by a power supply or 9 volt battery. The power consumption is approx 3 mA hence a 9 volt battery will last a long time.Operation is very simple with audio being fed in the input jack and headphones or powered speakers connected on the output jack. A two way screw terminal block is provided for power connections (9 Volt battery or DC power supply).Using well established op-amp technology this filter will provide improved performance when receiving CW on noisy/cluttered bands.Note this is a narrow filter and hence not suitable for audio (SSB) reception.Sale includes:Built & tested filter PCB (Note PCB Color may vary)Link to our user guide ** No other items are sold with this PCB, such as cables, power supplies, batteries etc.**Please also see photos for more information and ask questions if you need clarification.Free shippingNo quibble returns
Price: 17.99 USD
Location: Olathe, Kansas
End Time: 2023-08-01T20:51:43.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 60 Days
Refund will be given as: Money back or replacement (buyer's choice)
Return policy details:
Features: Fixed Frequency
Manufacturer Warranty: 1 Year
California Prop 65 Warning: Not Applicable
Custom Bundle: No
MPN: ER-ACW
Compatible Model: Universal
Modified Item: No
Band: HF
Unit Type: oz
Item Length: 3x2
Country/Region of Manufacture: United States
To Fit: Ham transciever
UPC: Not applicable
Non-Domestic Product: No
Item Weight: 2
Compatible Brand: Universal
Unit Quantity: 4
Brand: ElectroResales
Frequency Band(s): HF
Type: Active
