2kW Directional Coupler for LDMOS Amlifiers 

Hi, I just wanted to pass on my thanks to you for sharing so much of your work. Sharing this information on your web site in such a complete form is extremely helpful in the learning process. Thank you!

This is a slick design. Nice.

I don’t see the schematic on the English version of your website. Did I miss it?

ITS very good desind Can I get this PCB and how much will it cost if plus components de yb2bam

Great video!. It is quite easy to follow and understand. By the way, what do you mean when you say that the "PCB planes are designed fro 50 ohms impedance"?. Is this the width of the tracks?

Hello Sir very good video made by you. Have you tested this coupler for High Power RF which can handle more than 1.5KW CW up to 30MHz. Which PCB material used for this design,

Excellent explanation!

Can you construct a ATU with these values: the capacitor range should be 15pF - 8000pF, in good enough increments. The inductors should be 0.2 to 20 uH. A high pass "Tee" network is fine for 160m up to and including 10 meters. For 6m a low pass"Pi" network with the capacitor range of 20 to 400 pF, and inductor values from 0.05 to 1uH gives the best range. I think that the ATU will be able to handle up to 1:20 SWR mismatch with those values, that's a bit insane. A more reasonable value is 1:5. At 1500W RF power a 1:10 mismatch, the current and voltages will be 1225Volts, the maximum Irms will be 17.3 Amps. At a 1:20 mismatch and the same power, the voltage will be 1700 volts, and maximum Irms 24.5 Ampere. It should use a heuristic algorithm called neighbor searching algorithm,for really fast tuning.

Hello, is your pcb pattern free to download, if so where to download please ? I just want the directional coupler pattern. Thanks

sir how to know core value and winding turns for a particular frequency plz tell me sir

Hello, are the capacitors c1,c2,c5,c6 10uF or 10nF ?

Hi. For me to have a full TX at 2.420Kilohertz with 2Kw, could you help me?

Sir, what is directivity in dB? Is this SWR in dB?

This device automatically switches the antenna from the transceiver (receiving) to the amplifier (transmitting)?

Excellent video Tnx for understand setep by step. I like your videos so much. What is your Solder machine name model ? its very tiny 73' de ta4au

Why do you need the log amps?

Are you selling any pallets?

Whats an "Amlifier"?

www.helitron.de/shop/product_info.php?products_id=104&MODsid=tikqeaajccbsgu2b46o2sma06pgt1s5jc9oma73n5j6dartad4s0 This kit is not mounted board but inside all parts or only board price ?