I have had a further look at it today and might have found the reason for the high swr .The coil didn't seem to be earthing in the braid .When moving the coax the swr was all over the place .I re crimped the coil under the coax braid and the swr is now below 1.5:1 on the marine channels . Thank You, Ian Wells, Kerinvale Comaudio, 3A Murchison Street,Biloela.4715 Ph 0749922449 or 0409159932 or 0749922574 www.kerinvalecomaudio.com.au -------Original Message------- From: Stanley Stanukinos Date: 8/24/2010 9:48:09 PM To: [email protected] Subject: RE: [Repeater-Builder] Unknown uvhf antenna Have you tried to resonate it at 27 MHz? From: [email protected] [mailto:repeater-buil...@yahoogroups com] On Behalf Of Ian Wells Sent: Monday, August 23, 2010 10:50 PM To: [email protected] Subject: [Repeater-Builder] Unknowen uvhf antenna
Hi guys .I have a client that has a marine antenna that is suppose to be a VHF 156mhz antenna but it is showing up as mega high swr >From the base to the coil above is 115mm .the center wire finishes just above the spiral wrap (picture on the left )and is 90mm long and the spring is connected to the braid under the brass crimp and extends in the picture in the right 950mm long.Can anyone identify the type so we may check the lengths to see why the swr is over 3.1 when the manufacturers specs should be 1.2 Thank You ,Ian Wells Kerinvale Comaudio, 3A Murchison Street, Biloela.4715 Ph 0749922449 Mb 0409159932 Hm 0749922574 Fx 0749922767 www.kerinvalecomaudio.com.au
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