Gadgeteer2000
Member
Hello all, I have several handheld transceivers. Just for the fun of it, I measured the SWR (with my Nano VNA and with a Surecom SW-102S SWR meter) for the different antennas (factory ones and ones I bought later).
I have found that the antennas (including the factory supplied ones) have SWR values in many cases well over 3 in (large) parts of the transmission range.
I am a newbie about this - but my understanding was that the SWR should be below 2 to avoid damage to the radio. None of the antennas had that for the full transmission ranges of the radios (I tried 6 different models, including highly rated Diamond etc. antennas) .
Is this going to cause a problem with the radio? Or is the high SWR just reducing the transmit range but has no effect otherwise since the output power is not very high?
(The radios I am talking about are 5W - 8W max power)
Thank you for sharing your experiences
I have found that the antennas (including the factory supplied ones) have SWR values in many cases well over 3 in (large) parts of the transmission range.
I am a newbie about this - but my understanding was that the SWR should be below 2 to avoid damage to the radio. None of the antennas had that for the full transmission ranges of the radios (I tried 6 different models, including highly rated Diamond etc. antennas) .
Is this going to cause a problem with the radio? Or is the high SWR just reducing the transmit range but has no effect otherwise since the output power is not very high?
(The radios I am talking about are 5W - 8W max power)
Thank you for sharing your experiences