VHF/UHF Whip Antenna Testing with NanoVNA

Introduction

Fig.1 VHF/UHF Whip Antenna 30cm & Magnetic Base

The NanoVNA is a very compact and useful instrument that can be used to test a variety of antennas (Ref.1/8). So far I have tested most of my antennas with the exception of a few whip antennas that are used with the RTL-SDR. In this post I am testing a compact VHF (136-174MHz)/UHF(400-470MHz) antenna. It is approx 30cm long with 2 coils. It comes with a magnetic mounting base and coax cable with sma connector (Fig.1).

SWR 100MHz – 600MHz

Fig.2 NanoVNA Sweeping 100MHz to 600MHz S11=SWR
Fig.3 Sweep Result Showing VHF & UHF Band Openings

Figure 2 & 3 show the sweep results for SWR showing the pass bands for VHF & UHF.

Fig.4 YouTube Video VHF/UHF Whip Antenna Testing with NanoVNA

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References

#1. – “ATSC HD Television Antenna Testing with NanoVNA”
https://jeremyclark.ca/wp/telecom/atsc-television-antenna-testing-with-nanovna/

#2. – “HF Tx Line Testing with NanoVNA”
https://jeremyclark.ca/wp/telecom/hf-tx-line-testing-with-nanovna/

#3. – “L Band Dish Antenna Testing with NanoVNA”
https://jeremyclark.ca/wp/telecom/l-band-dish-antenna-testing-with-nanovna/

#4. – “Inmarsast Patch Antenna Testing with NanoVNA”
https://jeremyclark.ca/wp/telecom/inmarsat-patch-antenna-testing-with-nanovna/

#5. – “Radio Astronomy LNA/BPF Testing with NanoVNA”,
https://jeremyclark.ca/wp/telecom/radio-astronomy-lna-bpf-testing-with-nanovna/

#6. – “HF Loop Antenna Testing with NanoVNA”
https://jeremyclark.ca/wp/telecom/hf-loop-antenna-testing-with-nanovna/

#7. – “VHF Marine Antenna Testing with NanoVNA”,
https://jeremyclark.ca/wp/telecom/vhf-marine-antenna-testing-with-nanovna/

#8. – “HF Antenna Testing with NanoVNA”
https://jeremyclark.ca/wp/telecom/hf-antenna-testing-with-nanovna/

By Jeremy Clark

Jeremy Clark is a Senior Telecommunications Engineer and Advanced Amateur Radio Operator VE3PKC. He is the author of E-Books on Telecommunications, Navigation & Electronics.