Description: DESCRIPTION This is a 7th order Chebyshev Low Pass Filter for using after HF power amplifier for removing harmonic. This LPF intended for HF amateur bands - 1.8 MHz, 3.5 MHz, 7.0 MHz, 10 MHz, 14 MHz, 18 MHz, 21 MHz, 24 MHz, 28 MHz and 50MHz. 3dB cut off frequency is 2.5 MHz, 5 MHz, 8.6 MHz, 15.5 MHz, 25 MHz, 35 MHz and 55 MHz. You can choose cut off frequency by setting up binary code with 3.3v or 5v logic levels (onboard jumper selectable), see pictures above. 1.8MHz-28MHz insertion loss is about 0.5 dB or less. 50 MHz band insertion loss is 0.8dB. You can see attached graths for exact, per bands, values. Input and output impedance is 50 Ohm. Input and output connectors is SMA female. LPF Return Loss is better than 30 dB for 1.8MHz-28MHz and 28dB for 50 MHz. Maximum handled power for any band is 100w with 50% duty cycle with no external cooling, 100% duty cycle with air colling. Only high quality and original components using - AMIDON T68 and T50 cores, and NP0 Hi-Q, low ESR RF capacitors. SWR and ferrite rings temperature should be under control. Board size is 149 x 110 mm. Power supply - 12v 0.2A max SHIPPING We are open and active, regadless of the war. This is our way of supporting Ukraine's economy. Postal Service is fully operational where we are. We ship worldwide from Ukraine, by Registered Airmail with tracking number. After package leaves Ukraine you can track it through your local Postal web site. We ship next business day once the payment received. Delivery time depends on destination and your local customs clearance speed. It generally takes about 15-25 business days.
Price: 120 USD
Location: Kyiv
End Time: 2024-01-26T15:11:08.000Z
Shipping Cost: 20 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Non-Domestic Product: No
Supported Modes: AM, CW, FM, SSB, DIGI
Custom Bundle: No
Max. Output Power: 100W
Band: AM, HF, RF
MPN: Does Not Apply
Modified Item: No
Number of Outputs: 1
Brand: 60dbm.com
Type: Low Pass Filter
Number of Channels: 1
Number of Inputs: 1
Model: HF+50-100W-LPF
Frequency Band(s): HF
Country/Region of Manufacture: Ukraine
Power: 100 W