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It's like it have to shorten it. It wasn't easy trying to set the tuning rings and it. My MFJ-207 injected a signal into the A99 while it was lying horizontal three feet off the ground and attached to the tower mast. I had a two foot jumper connecting the swr analyzer to the A99's SO-239. I stood back where the ground radials were while my brother adjusted everything. Couldn't get within 15 feet of the radiator without affecting the swr. Adjust and stand back. The 207's frequency adjust knob was hard to get it to stay still on frequency. Any sideways wobble would upset it. I'd either have it emitting a signal or not. I had it wiggle the knob(shaft) just right. It's new. The physical length of the Firestik's spiral wrapped wire is 5/8's of a wave long(11 meters)but the physical length is five feet long. The A99's stock top section is six feet long. Later on I'll check the swr curve again using the 207 with the MFJ-346 to see what the swr curve looks like and present my findings.
By the way,I'm wanting to lengthen the mast where it comes out of the tower top from seven feet to ten feet. It's a 1 1/4" outside diameter galvanized water pipe. The mast collars are threaded galvanized water pipe couplings. I could thread a 1 1/5" water pipe into the top collar coupling and run the 1 1/4" pipe inside the 1 1/4" section in order to stabilize that collar coupling joint. That would bring the A99's tuning rings up to the forty foot mark. Three feet can make a difference. That would on the average give me four additional miles direct talking distance.

http://www.davidsenesac.com/Information/line_of_sight.html

I did buy something useful tonight

<blockquote data-quote="Lil&amp;#039;Yeshua" data-source="post: 450540" data-attributes="member: 28438">It&#039;s like it have to shorten it. It wasn&#039;t easy trying to set the tuning rings and it. My MFJ-207 injected a signal into the A99 while it was lying horizontal three feet off the ground and attached to the tower mast. I had a two foot jumper connecting the swr analyzer to the A99&#039;s SO-239. I stood back where the ground radials were while my brother adjusted everything. Couldn&#039;t get within 15 feet of the radiator without affecting the swr. Adjust and stand back. The 207&#039;s frequency adjust knob was hard to get it to stay still on frequency. Any sideways wobble would upset it. I&#039;d either have it emitting a signal or not. I had it wiggle the knob(shaft) just right. It&#039;s new. The physical length of the&nbsp; Firestik&#039;s spiral wrapped wire is 5/8&#039;s of a wave long(11&nbsp; meters)but the physical length is five feet long. The A99&#039;s stock top section is six feet long. Later on I&#039;ll check the swr curve again using the 207 with the MFJ-346 to see what the swr curve looks like and present my findings. By the way,I&#039;m wanting to lengthen the mast where it comes out of the tower top from seven feet to ten feet. It&#039;s a 1 1/4&quot; outside diameter galvanized water pipe. The mast collars are threaded galvanized water pipe couplings. I could thread a 1 1/5&quot; water pipe into the top collar coupling and run the 1 1/4&quot; pipe inside the 1 1/4&quot; section in order to stabilize that collar coupling joint. That would bring the A99&#039;s tuning rings up to the forty foot mark. Three feet can make a difference. That would on the average give me four additional miles direct talking distance. <a href="http://www.davidsenesac.com/Information/line_of_sight.html" target="_blank">http://www.davidsenesac.com/Information/line_of_sight.html</a>I did buy something useful tonight</blockquote>

[QUOTE="Lil'Yeshua, post: 450540, member: 28438"] It's like it have to shorten it. It wasn't easy trying to set the tuning rings and it. My MFJ-207 injected a signal into the A99 while it was lying horizontal three feet off the ground and attached to the tower mast. I had a two foot jumper connecting the swr analyzer to the A99's SO-239. I stood back where the ground radials were while my brother adjusted everything. Couldn't get within 15 feet of the radiator without affecting the swr. Adjust and stand back. The 207's frequency adjust knob was hard to get it to stay still on frequency. Any sideways wobble would upset it. I'd either have it emitting a signal or not. I had it wiggle the knob(shaft) just right. It's new. The physical length of the Firestik's spiral wrapped wire is 5/8's of a wave long(11 meters)but the physical length is five feet long. The A99's stock top section is six feet long. Later on I'll check the swr curve again using the 207 with the MFJ-346 to see what the swr curve looks like and present my findings. By the way,I'm wanting to lengthen the mast where it comes out of the tower top from seven feet to ten feet. It's a 1 1/4" outside diameter galvanized water pipe. The mast collars are threaded galvanized water pipe couplings. I could thread a 1 1/5" water pipe into the top collar coupling and run the 1 1/4" pipe inside the 1 1/4" section in order to stabilize that collar coupling joint. That would bring the A99's tuning rings up to the forty foot mark. Three feet can make a difference. That would on the average give me four additional miles direct talking distance. [url]http://www.davidsenesac.com/Information/line_of_sight.html[/url] I did buy something useful tonight [/QUOTE]

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