1.8 MHZ High-Pass Filter – 11-th order – 1500 W – DHL Fast Ship – SV1AFN shop

1.8 MHZ High-Pass Filter - 11-th order - 1500 W - DHL Fast Ship - SV1AFN shop

$209.0 Buy It Now or Best Offer
free,30-Day Returns

Seller Store gr_makis
(13803) 98.9%,

Location: Athens,
Ships to: US,
Item: 202560551265

Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:14 Days
Refund will be given as:Money back or replacement (buyer’s choice)
SV1AFN.com:SV1AFN.com
High Pass Frequency:1.8 MHZ
Power Handling:1500 W
MPN:761856633124
Country/Region of Manufacture:Greece

ATTENTION: The price shown includes Greek VAT 24% and is applicable to all individuals in EU countries only. If you are from any other country including USA, Canada, Australia etc. please use the “make offer” button and divide the price by 1,24.We will first accept this offer to let you proceed with the check-out and payment. If you are a business registered in EU with a valid VAT number again, you can use the same button so to pay without VAT. We will send you a zero VAT tax invoice. 1.8 MHZ High-Pass Filter This design is a 11th order Chebyshev high-pass filter with very low ripple. It is offered in two variations, one low-power, for receive only applications and another capable of withstanding high power, i.e., capable to pass high power on all HF bands including 50 MHZ without the need to put it out of the line when transmitting up to 1000-1500 W or more. The damage level is 2100W with high SWR. There is no something high-tech on these filters, only, because many friends of mine were not satisfied from the performance of commercial low cost similar filters, asked me to develop a better one with more elements to give rapid attenuation of the MW BC band of 550 – 1600 kHZ, while to perform transparently on all of the rest of the HF spectrum with minimum loss. I have started the design thinking to sacrifice the 1.8 – 2.0 MHZ amateur band (or, at least don’t care about this band) because I didn’t know how to get minimal loss on 160 m and deep attenuation on the area of 550 – 1600 kHZ at the same time. One solution was to use an elliptic design which provides rapid attenuation curve but only up to around -40 dB minimum attenuation of the rejected band so to be practical and easily reproducible at home, and another solution was to use high-order and carefully selected good components with the Chebyshev coefficients. With the chosen topology, an attenuation curve of around 10 dB per 100 KHZ has been achieved, -12 dBc on 1600 kHZ, (-20 for some prototypes), –26 dBc on 1500 kHZ, – 37 dBc on 1400… <-100 dBc under 800 kHZ and even more on 550 kHZ, while its maximum loss over the 1.8 to 54 MHZ range is on the middle of the 160m band with 0.4 dB, which is quite acceptable at high power levels. The insertion loss at 30 MHZ is also 0.4 dB and it is flat to 54 MHZ. USE: Insert the filter between the antenna and the transceiver. You will notice immediate signal to noise ratio improvement since the strong broadcasters will be eliminated. Also, the filter will severely attenuate all low frequency interference from solar-panels, inverters, high-voltage sources, the reception performance will be greatly improvise. ORDERING OPTIONS - Prices include 24% VATIf you have a valid EU VAT number please email us for issuing a VAT exception invoice. For a complete Built & Tested and Boxed Unit (USD 209.00) RF capacitors of high voltage are used for all the circuits which are factory soldered.The shipping is with DHL Check out our other items! We always combine shipping. The inexpensive Receive-only (and QRP up to 10 W) version is also available here: https://www.ebay.com/itm/152981905215

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Frequently Asked Questions About 1.8 MHZ High-Pass Filter – 11-th order – 1500 W – DHL Fast Ship – SV1AFN shop in My Website

What are the best-selling 1.8 MHZ High-Pass Filter – 11-th order – 1500 W – DHL Fast Ship – SV1AFN shop on www.fibusfamilyfoundation.org?

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