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What's more, thin film loads and resistors to build your own power attenuators are quite inexpensive. A 50-ohm 200 watt thin film resistor can be had vor less than $30. Add a case, a Heat sink, a

You can use a simple flip/flop to divide by two. Dave - W?LEV <enriqueeeeee2001@...> wrote:

Hi Bruce, I'm not so sure about that, I think it needs qualifying. Of the items that have been mentioned so far. Elecraft XG3 $299.95 USD Uni-T UTG962 RF signal generator $140 USD QRP Kits audio

The basic NanoVNA is probably sufficient to your needs. My NanoVNA H4 goes to 1500 MHz. I also have a TinySA Ultra. It goes past 10 GHz. I do need that since I am a microwaver, but I doubt you need

http://www.qrpkits.com/twotonetest.html I can vouch for this kit. Larry KB3CUF [email protected]> wrote:

Here is another PC sig gen. So run this and the soundscope to see the patterns. https://gnaural.sourceforge.net/

I terms of lower cost. Elecraft makes sg that's calibratable. Off harmonics into the ghz range, if I remember correctly. It can be operated via computer.

Have a look on-line for sound card audio generators for use with a PC. These can be used to generate audio tones that can be fed into a transmitter. One of my favourites is Sound Card Scope (free),

Then, I would get the Ultra or with the Basic should be more than enough for my purposes? Kin Regards.

For HF testing/alignment I highly suggest you check out the *Uni-T UTG962* RF signal generator. It is very capable Function/Arbitrary waveform generator. It has 2 channels out can generate up to 60

Two tones would be nice for measuring 3rd order intercept as well.

The high price stuff specifically describes bi-directional attenuation even on low ish power see description section https://birdrf.com/Products/Test%20and%20Measurement/Attenuators/10-watts.aspx

I already mentioned that below 0.5W it’s unlikely to matter even if marked directionally I think we can assume the photos and info come from the factories. ?Two input ends both meeting power, swr

I must admit that I am not entirely convinced that some of the attenuators that have i/p and o/p shown on the pictures are actually uni-directional, particularly the low power ones. I suspect that it

Jeff Yes it’s often a case of you only know if you know.. Unless marked differently the male plug = input rule seems safe yet little publicity for this has seeped through to amateur experimenters

I would not trust an attenuator manufacturer that does not mark which is the i/p. 73 Jeff

Yes (as I’ve repeatedly said here already eg check the photos on sellers pages on other designs check for a direction arrow sometimes you must read the spec (shock horror) or assume the male end

You have to be very careful when using notch filters. Try to ensure that even with the notch not placed on the carrier that the signal level will not cause damage. I saw someone destroy 2 spectrum

So, is there a such a thing as "the high powered end"??? Is it marked accordingly? Thanks, Bob

Problem solved! The problem was resolved by re-seating the screen flex cable onto the board. ?I found a previous post that had exactly the same symptoms as my unit and Erik suggested reseating the