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Pros and cons! The band does not require any ID, so as far as I know there is no part 95 or 97 rule to prevent it. Would it demonstrate good operating practice if done without a lot of foolishness and have some point of value such as discussions and net operation procedures etc.? Non use of...

Moved to the disscussion forum.

I use an ANC 4 which is the same type device. To go over it again, this type device has a seperate antenna input that amplifies the noise signal on a broadband basis (no selecitivity) and has a phase selection at the output to another amplifier. It is then combined with the same interfereing...

Some of the hams gave the correct answers to the question of coax length. This is always a point of debate because of lack of understanding transmission line and antenna theroy. Take it in two bites, then put them togather. First, a coax nominal impedence is 50 ohms +/- a small amount. The...

I used one some 30 years ago during a high sunspot cycle. Here is what I saw using it. This antenna design has a very high side null/rejection but poor front to back ratio. On local area topo contacts at distance with the other stations using PDLs, neither Giz polarization would show any...

This question should be ask in the CB section where everyone is an expert. Here, hams don't know anything!

The simple answer to the question as posed is it has no effect. There are other circumstances where there can be interaction. When these other circumstance prevail, there is a problem with common mode current on the outside of one or both of the feedlines that should not be there. This can be...

I run a single 4cx family tube on 6m at 600 watts output. The amplifier is an old Telstar rettrofitted from a 4cx250 to a Russion GS36B. They plug in and go after the grid bias is set for class AB1 linear operation for this tube. A European company is now marketing a 4cx250 amp here for HF...

The lower power tetrodes in the 4cx 150 to 400 family all use about 350 volts on the screen. In these circuits a string of Zeners to add up to over the screen supply voltage is often used to regulate and drop the input voltage to the level desired. The output of the supply at the screen often...