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No. It will help reduce harmonics, but that is all. It will do NOTHING to reduce in-band IMD or just plain distortion of the signal caused by the hard switching of the transistors in class C.

Nice deal. I would be interested in seeing the assembly diagram of that antenna. I have a homemade six element OWA on a similar length boom that I built myself many years ago. I have no idea what the actual gain is but it works really well and has quite a sharp pattern.

The amp could not produce full peak power on the ten amp supply. It was being starved for current. Running it off the 20 amp supply allowed it to pull full peak current, whereas the ten amp supply would only allow a much lower power. The amp neither knows nor cares whether that power is average...

Don't run the RF gain wide open. Switch in some attenuation. As long as the signal is above the noise floor. Cutting back on the gain will not affect signal quality but will reduce overload and IMD. At times I switch in 10dB of attenuation and see IMD disappear or greatly reduced, much more than...

Sounds more like a misguided tech to me.

Well 160m is not HF. It is actually MW, medium wave, and is much more like the AM broadcast band than it is like any HF band. It starts only 95 kilohertz above the AM band.

qrz.com gets their callsign info directly from the FCC for US amateurs. Unless the data is still available for uploading to qrz, even that option will be affected.

Kind of, but not completely. You mentioned take off angle changing with height but you also mentioned where gain comes from. I simply clarified about the reflected signal combining with the incident signal to gain an extra 5-8 dB. Just more info, that's all.

DX Man is probably talking about the extra 5 to 8 dB gain a horizontal antenna can achieve from what is called ground reflection gain. The take-off angle changes with height. The angle that the signal strikes the ground and is reflected, combines with the incident wave signal and actually adds...

Florida RF Labs has some nice attenuators. Henry Radio as well. I have picked up several off Ebay. I have a 100 watt 10 dB pad to limit drive to a solidstate amplifier. 50 watt 3 dB. attenuator 100 watt 1.0 dB attenuator The above require a heatsink to be mounted on. Below is a coaxial...

The term "such devices" simply means those devices that do as you pictured. There are a lot of different ones out there, and ANY of the cheaper types OF THOSE DEVICES will NOT meet what they claim for results. They are fine for low current applications but performance drops off quickly with high...

Oh I am well aware of such devices but they are generally just a bandaid with most of the sticky stuff gone. IOW they do not work that great, especially at high power demands. I have tried them at low power with acceptable results but high power applications and they start to fail.

Most exotic DX have a QSL manager to look after all that. They send them their logs a few times a year and the manager does the work in his free time.

Typical HF range toroid. Good for 2-30 MHz and good for a few hundred watts. Typically used in HF baluns.

Probably not, but 3Kw would get the same results plus the added benefit of better RX.

IT DOES NOT WORK. THE HTX-10 HAS NEVER BEEN ABLE TO GO OUT OF BAND WITH A SIMPLE MOD.THE CHIP HAS DIFFERENT FIRMWARE PROGRAMMED INTO IT. THE HTX-100 HOWEVER WAS A DIFFERENT STORY. APPARENTLY SOME PEOPLE HAVE NEVER LEARNED THE MEANING OF THE WORD "NO" AND STILL INSIST IT IS POSSIBLE DESPITE THE...

I wasn't talking about using a 10m beacon to align anything. Why would you? It is transmitter by homemade gear most of the time or sometimes a converted CB radio to operate on 10m.The VAST majority are NOT frequency locked any more than the tolerances the gear was made with. I was talking about...

1977 for me. Mom and dad started going to CB dances with friends that were members of a local CB club. Dad bought a Midland 13-898B and I got hooked on DX.

What??????? If you for some unknown reason want GPS precision for frequency control, you need something other than a CB radio. I have no idea what you are intending to do and listening to something on 10m and returning to 11m in no way will make you off frequency. If you want GPS timing to...

With the way propagation comes in and out, I think two hours between transmissions is too long. There are LOTS of continuous beacons transmitting on the bottom of 10m. Why not just use those because if 10m is open, 11m will be.