02-06-2018, 02:45 PM
Brendan
Checked it today to find it faulty, opened it up and re-soldered a broken joint, fixed the reason for the broken joint (coax connector in the base tube not mounted solidly), then tested it.
The SWR was 1.6:1 at 144, 1.4:1 across 145 to 147, rising to around 1.6-1.7 just under 148 MHz - tested without any ground plane radials but clamped to the box trailer frame. By rights, it should still have those 4 radials fitted in the final installation and the SWR may be even better.
Looking good electrically for your IRLP node but needs to be hung from the tree branch to solve the electrical conduit 'wag' and bend.
Doug
Checked it today to find it faulty, opened it up and re-soldered a broken joint, fixed the reason for the broken joint (coax connector in the base tube not mounted solidly), then tested it.
The SWR was 1.6:1 at 144, 1.4:1 across 145 to 147, rising to around 1.6-1.7 just under 148 MHz - tested without any ground plane radials but clamped to the box trailer frame. By rights, it should still have those 4 radials fitted in the final installation and the SWR may be even better.
Looking good electrically for your IRLP node but needs to be hung from the tree branch to solve the electrical conduit 'wag' and bend.
Doug
Doug VK4ADC @ QG62LG51
http://www.vk4adc.com
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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.