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 Post subject: Cascoded J310 MW band active antenna
PostPosted: Sep Tue 14, 2021 7:35 am 
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Joined: Mar Thu 01, 2018 1:30 am
Posts: 807
An active antenna for 1380KHz.

Front end is tuned plus there's a 5 pole robust BPF between active antenna and receiver. This is the best solution I could come up with under 20 minutes. It will give an acceptable performance. Not much extra noise if it's mounted high outdoors and some distance from the house with a coax delivering 12V and feeding the radio at the same time.

C2 is for impedance match and C1 is to resonate the 22uH coil on 1380KHz.


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Last edited by Dare4444 on Sep Wed 15, 2021 10:58 pm, edited 1 time in total.
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 Post subject: Re: Cascoded J310 MW band active antenna
PostPosted: Sep Tue 14, 2021 7:36 am 
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Joined: Mar Thu 01, 2018 1:30 am
Posts: 807
RA0SMS vs PA0RDT Active Mini Whip - RA0SMS is Very Noisy - Why?
I have been using a PA0RDT active mini whip from Roelof Bakker for about a year now. The PA0RDT antenna has served me well. Clean and able to pull in signals that a 260 foot loop and various long wires cannot.

https://www.sdrplay.com/community/viewtopic.php?t=4128


Last edited by Dare4444 on Sep Wed 15, 2021 10:57 pm, edited 1 time in total.

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 Post subject: Re: Cascaded J310 MW band active antenna
PostPosted: Sep Tue 14, 2021 1:46 pm 
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Joined: Mar Thu 01, 2018 1:30 am
Posts: 807
Dare4444 wrote:
An active antenna for 1380KHz.

Front end is tuned plus there's a 5 pole robust BPF between active antenna and receiver. This is the best solution I could come up with under 20 minutes. It will give an acceptable performance. Not much extra noise if it's mounted high outdoors and some distance from the house with a coax delivering 12V and feeding the radio at the same time.

C2 is for impedance match and C1 is to resonate the 22uH coil on 1380KHz.


Is it gonna work? Simple solution.


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