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Thank you Eddie,

i know its only a small undetectable increase but id rather have as much of my current in the antenna as possible and as little as possible on my mast & coax,

i was told tales that astroplanes are rfi monsters, i don't agree, no antenna is an rfi monster if its errected correctly to minimise such issues,

DB tells us currents on the mast are always low with this antenna so you would not expect to see much change in current or gain,

i can now be sure my 1/2wave mast & coax isolation is not doing anything detrimental to vswr or gain,

it miminises the potential for noise pick up on the lower mast that is closer to noise sources, it also minimises potential RFI issues .

<blockquote data-quote="bob85" data-source="post: 594376" data-attributes="member: 18">Thank you Eddie,i know its only a small undetectable increase but id rather have as much of my current in the antenna as possible and as little as possible on my mast &amp; coax,i was told tales that astroplanes are rfi monsters, i don&#039;t agree, no antenna is an rfi monster if its errected correctly to minimise such issues,DB tells us currents on the mast are always low with this antenna so you would not expect to see much change in current or gain,i can now be sure my 1/2wave mast &amp; coax isolation is not doing anything detrimental to vswr or gain,it miminises the potential for noise pick up on the lower mast that is closer to noise sources, it also minimises potential RFI issues <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt="(y)" title="Thumbs Up&nbsp; &nbsp; (y)"&nbsp; data-smilie="27"data-shortname="(y)" />.</blockquote>

[QUOTE="bob85, post: 594376, member: 18"] Thank you Eddie, i know its only a small undetectable increase but id rather have as much of my current in the antenna as possible and as little as possible on my mast & coax, i was told tales that astroplanes are rfi monsters, i don't agree, no antenna is an rfi monster if its errected correctly to minimise such issues, DB tells us currents on the mast are always low with this antenna so you would not expect to see much change in current or gain, i can now be sure my 1/2wave mast & coax isolation is not doing anything detrimental to vswr or gain, it miminises the potential for noise pick up on the lower mast that is closer to noise sources, it also minimises potential RFI issues (y). [/QUOTE]

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