Damage to the transverter isn't the only problem with using a rig with the ALC working very hard. You need to get someone to check your signal for splatter, or better still use a spectrum analyser if

Thanks Kent. How much gain do you get from the LNA?

Could someone please give me an estimate of the noise figure and gain that can be expected from the amp in a domestic LNB? And can one easily separate the LNA from the rest of the LNB? I would like to

Depending on the input impedance of your client devices, and how many of them you have, you could try daisy chaining them using BNC Tee pieces, with a 50 ohm termination at the far end. This is done s

Since few of us will have a copy going so far back, how about repeating the design in RadCom. An idea for Design Notes, Andy (JNT)....?

If you manage to find some, please let me know, Matthias. A couple of years ago I tried to find a pair of these thermistors to make a DJ4GC power meter, but I was unsuccessful. I don't believe they ar

I'm not a PA specialist, but have designed one or two in the distant past. I believe that you need to use the impedance characteristics under drive at a typical power level, and these are not usually

Two problems with the SKY devices. Firstly I want to use them at 10 GHz, and SKY only does 6 GHz. Secondly I've had problems getting the SKY devices to work. Not sure if they're unusually static sensi

These were mentioned by Andy JNT in his Design Ideas for the Dec RadCom. I looked on the Menlo web site but only see 3 devices, all of them more complex than the SPDT we normally need for amateur desi

Thanks for that Andy - very encouraging, and I'll try it out.

I still use the occasional 723 regulator, especially if I want variable current limit. I also first came across them in 1974, immediately after graduating. I don't think the internal ref can be just a

Does anyone have experience of using the ERA-02 as a tripler from around 3.5 GHz to around 10.5 GHz? I know they work in triplers up to 3 GHz, but I was wondering whether they have a respectable perfo

I'm interested to see that there is a standalone program for running PicKit 3. I had thought that a full installation of MPLAB was necessary. I was reluctant to install MPLAB again as I've had such ba