An evening with the VNA

[Matt]

As a few of you know i recently fell in love with my NanoVNA, now after much tinkering i think i have my PMR antenna to a very happy place for my home base setup.  So i thought i do a lil run down of what i am using

My Radio is a Yaesu FTM-3207D



My antenna is a home made 1/4 wave Vertical "sputnik"
(connected to radio with RG8 cable 11m in length to the loft of the house. giving it a mere 37m above sea level)



and this is the VNA sweep form 446Mhz to 446.3Mhz.



Before the new cable and Antenna i was barely getting Nigel (the camper-van man) from his home base at S2/R4  Now its an easy S5-6/R5. looking forward to the nett kicking off again so i can have a good listern of some people in different areas.

I think there is still a few tiny adjustments i could make but for now i am very happy.
 Matt

[CT4013]

Nice looking radio Matt, I haven't heard of it before. Does it do 446 out of the box or did it need modding. I wish I could find a mod for my FT991a as the only way at present to have TX on 446 is to set the frequency/power/squelch etc., turn off then hold 3 buttons in & switch on.

Sputnik in the loft worked well before, I wonder if the 'tinkering' will allow me to hear you in Brighton.

The vna screenshot is beyond me, but well done for all your efforts.

Tony
ps. Lets hope Johnny 5's does as well.

[Matt]

Yeh its lovely lil radio, but no it doesn't do 446 out the box it was wide banded before i brought it apparently its an easy mod but still beyond me 
The VNA i am still learning it but the yellow line shows the swr curve and value top left

it was definitely a shock on the net when voices started popping up i had never heard before  

[CT4013]

Yeh its lovely lil radio, but no it doesn't do 446 out the box it was wide banded before i brought it apparently its an easy mod but still beyond me 
The VNA i am still learning it but the yellow line shows the swr curve and value top left

it was definitely a shock on the net when voices started popping up i had never heard before  

Thanks Matt for the radio & VNA info.
Let's hope you have some more good shocks, I look forward to hearing about any more.