07-11-2017, 07:17 PM
Wayne
Nothing published about it in AR but it would be published on my web site at http://www.vk4adc.com if it was anywhere. There are a lot of things/projects that don't even end up there because it is very time consuming creating the articles.
The Diamond CP6 has very narrow bandwidth as you go down towards 80 metres so unless you specifically tune and operate within its low SWR window, your overall results will likely be poor. Eg...
80m : +/- 9KHz at 1.5:1 SWR points (so you have to tune it centred for the very narrow segment you wish to operate in),
40m : +/- 14KHz at 1.5:1 (ditto),
20m : +/- 50KHz at 1.5:1,
(and a lot better from here up).
An in-line autotuner option does not make up for the non-performance of the antenna outside the denoted 1.5:1 bandwidth points, it simply provides a better match for the radio's output impedance.
Have a good time cruisin...
73 Doug
Nothing published about it in AR but it would be published on my web site at http://www.vk4adc.com if it was anywhere. There are a lot of things/projects that don't even end up there because it is very time consuming creating the articles.
The Diamond CP6 has very narrow bandwidth as you go down towards 80 metres so unless you specifically tune and operate within its low SWR window, your overall results will likely be poor. Eg...
80m : +/- 9KHz at 1.5:1 SWR points (so you have to tune it centred for the very narrow segment you wish to operate in),
40m : +/- 14KHz at 1.5:1 (ditto),
20m : +/- 50KHz at 1.5:1,
(and a lot better from here up).
An in-line autotuner option does not make up for the non-performance of the antenna outside the denoted 1.5:1 bandwidth points, it simply provides a better match for the radio's output impedance.
Have a good time cruisin...
73 Doug
Doug VK4ADC @ QG62LG51
http://www.vk4adc.com
This Forum is only going to be as interesting as the posts it contains.
If you have a comment or question, post it as it may trigger or answer the query in someone else's mind.
http://www.vk4adc.com
This Forum is only going to be as interesting as the posts it contains.
If you have a comment or question, post it as it may trigger or answer the query in someone else's mind.