开云体育

Yes. Once I start running Kiwi, I suddenly aware of noises. I have replaced all the switching power supply in the building and taking some other approach to reduce noises. My Kiwi is in a grounded

Hi all I won’t be buying any antennas.. All will be homebrew .it’s illegal for a ham to buy antennas lol! ( or amps) If i have a suitable mount to raise a 4 direction k9ay that may be the way i

Mike, If you want a low cost RX antenna the Lankford Low Noise Vertical is better than an active vertical, of any kind. I have 2 of them 200’ apart and a Lankford Phaser #2 and it is a great setup.

Simon, if you have the space: 8 circle array-DX engineering sells two different kits. very powerful lowband RX antenna. 4 square array Dx engineering sells two different kits. couple of dB down on the

hi moving to countryside this year, about September, so not much time to set up rx antennas for 160-40m for the winter season, especially considering i will be also erecting a 20m vertical ( along

Just to reactivate this subject for UK readers... Nevada Radio and Waters & Stanton are now selling the AR600XL rotator at ?179.95. I've just bought one and it arrived today and will be installed

There is another tool the amateur can use to view large swaths of spectrum: The SDRPlay. I was recently made aware of a spectrum analyzer application made for the SDRPlays by Steve Andrews. In the

Yes now you have the filter fitted, it looks like the loop seems to be performing OK with regard to overload. The rest of the interference looks like it's general noise and hash from switched mode

50-watts. Remember, I live at 5700 feet elevation which will lower the voltage rating. I can squeeze 100-watts if I'm careful, but usually limit it to 50 watts. In the picture, the variable capacitor

What level of wattage are you putting through it?

I can't install it in front of loop preamp. There is no place for me to install it. The preamp is on the antenna itself. But filter in front of my kiwi does solve most of the problem.

Instal the BCB stopband filter in front of the loop preamp! Dave - W?LEV -- *Dave - W?LEV* *Just Let Darwin Work*

Thanks. I have an existing RTL-SDR Blog AM BCB filter. I'll try to get it installed to see if it helps. I originally though it won't work because the signal already amplified by the Loop amplifier.

The following files have been uploaded to the Files area of the [email protected] group. * /001.jpg ( /g/loopantennas/files/001.jpg ) *By:* W0LEV <davearea51a@...>

The following files have been uploaded to the Files area of the [email protected] group. * /Transmitting Loop Antenna B.pdf (

Hi Chris, Sorry I don't know what file type it is as the extension is weird, I've tried the obvious ones but still can't open it. I think I can see a reference to Pagemaker in the text but no other

I've attached a copy of my own transmitting loop antenna.? It does not use the expensive variable vacuum capacitor not the difficult delta loop.Hi Chris,Can you put a copy in the files section, as

Would quite like to see your loop Chris.. Mine you can see on qrz.com. ( though does need the 40m loop pic updating.) I assume not commercial though? Simon g0zen

Hi Chris, Can you put a copy in the files section, as the forum doesn't seem to like attachments ? incidentally, for some reason your website link doesn't seem to be working. Regards, Martin

Hi Kun, You have three very strong broadcast stations operating on 1320, 1420 & 1490KHz which are overloading the receiver. I posted a notch attenuator circuit for you to try on the KiWi forum