Having satisfied myself that my Nissei RS-40 SWP/Power Meter is working pretty accurately, I decided it would be nice to really understand my UHF/VHF antennas and how they performed without the aid of an ATU or anything. So it was with much anticipation that I accepted Wallace’s (VK4CBW) offer of an antenna analyser.
I had never used one before so was eagerly looking forward to (firstly) working out how to use one, and secondly, comparing the results with those I obtained with the Nissei RS-40.
This is what I found:
DX-60 vertical 2m/70cm antenna:
144.60 – 147.00 MHz: 1.8:1
148.00 MHz: 1.9:1
433.00 MHz: 2.4:1
435.00 MHz: 2.1:1
438 MHz: 1.3:1
440.00 MHz: 1.0:1
With the Nissei RS-40 I an SWR of 1.5:1 for the 2m frequencies, so I guess the meter is close enough, especially as it is an analogue meter.
Frequencies in the 70cm band showed SWR readings of between 1.8:1 and 1.3:1 on the RS-40. So I am happy.