What is SWR in ham?
SWR, also known as Standing Wave Radio, is an important concept for ham radio operators. SWR is what allows us to know whether our antenna is performing as designed. If you have a good SWR reading, you can rest easy knowing your antenna is receiving and transmitting the best that it can.
How do you test a current balun?
look for the nearest trash can. That tests the balun CM impedance when operating into a balanced load. A more severe test is to attach the grounded jumper first to one side of the series pair, and then to the other side, and check how much the SWR changes. Also, using low value resistors “desensitises” the test.
How does a SWR meter work on a ham radio?
The device will let you know the SWR value of your radio, and then you can adjust the antenna to the right signal range for better reception. There are many types of SWR meter on the market, most of which are targeted at the CB and ham radio users. The price range is also diverse, and it might confuse people with little experience.
How can a meter read a SWR of 1?
If we connect the transmitter exactly at the 50 ohm impedance point, the meter will read an SWR of 1:1. If we connect the transmitter at the 1/4 wavelength point, where the impedance is 250 ohms, the meter will again read 5:1, since 250/50 = 5. How can that be?
Is the Hamtronics SWR meter compatible with DMR?
As for the frequency range, the device could cover any frequency from 125MHZ to 525MHZ. There are some small reminders that you need to know. First of all, the meter is not compatible with DMR digital radio. If you are looking for a meter that works on that kind of radio, unfortunately, this product can’t be the one.
What does SWR stand for on an antenna?
To most hams with an SWR meter, SWR is whatever the meter reads and if the meter says there’s no problem, then all is well. That simply isn’t true. In this section, we’ll try once again to explain exactly what SWR is and is not. There are enough problems in antenna design and construction without adding another source of confusion!