Well,
Remember the antenna I was describing back here:
http://g0mgx.blogspot.co.uk/2013/12/whos-lindenblad-i-wonder.html
I've finished it and stuck it up in the air:
The antenna analyser thingamabob suggests that the actual resonant point of the antenna is about 149MHz, but the SWR at 145.9 MHz is still only 1.4:1.
If I stick the antenna on the RLB I started to make here:
http://g0mgx.blogspot.co.uk/2013/09/return-loss-bridge-where-does-it-lead.html
Then this is what we see:
I explained the trace we see above using the Return Loss Bridge with the Spectrum Analyser back here:
http://g0mgx.blogspot.co.uk/2013/10/so-lets-get-bit-smarter.html
So there is a definite resonate point at 150.7Mhz, but there is also a very good match at 144.5MHz, at my target frequency of 145.9 the SWR is 1.38:1 which is perfectly acceptable.
Whilst I have been up and down ladders today, the cat has been completely useless as per normal:
Fun, egh?
Remember the antenna I was describing back here:
http://g0mgx.blogspot.co.uk/2013/12/whos-lindenblad-i-wonder.html
I've finished it and stuck it up in the air:
The antenna analyser thingamabob suggests that the actual resonant point of the antenna is about 149MHz, but the SWR at 145.9 MHz is still only 1.4:1.
If I stick the antenna on the RLB I started to make here:
http://g0mgx.blogspot.co.uk/2013/09/return-loss-bridge-where-does-it-lead.html
Then this is what we see:
I explained the trace we see above using the Return Loss Bridge with the Spectrum Analyser back here:
http://g0mgx.blogspot.co.uk/2013/10/so-lets-get-bit-smarter.html
So there is a definite resonate point at 150.7Mhz, but there is also a very good match at 144.5MHz, at my target frequency of 145.9 the SWR is 1.38:1 which is perfectly acceptable.
Whilst I have been up and down ladders today, the cat has been completely useless as per normal:
Fun, egh?
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