Search String: Display: Description: Sort:

Results:

References: [ +from:rxdesign@ssvecnet.com: 303 ]

Total 303 documents matching your query.

121. Re: [TowerTalk] Changing interaction of M2 40M4LLDD on 15 (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Tue, 16 Feb 2016 17:58:24 -0500
hello to all and forgive me for what appears to be, although unseen by me for whatever reason, duplicate posts. I sent my posts in on Sunday - nothing showed here (although other posts were coming in
/archives//html/Towertalk/2016-02/msg00211.html (13,701 bytes)

122. Re: [TowerTalk] FYI: for owners of 15M6-125 yagis (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Tue, 16 Feb 2016 18:02:09 -0500
hmmmm.... ok. I am keeping the heft of the -125 antenna (I found 2 of them locally like new for almost 1/2 the M6DX price new) ... and converting them to the newer (i.e. better modeling having been d
/archives//html/Towertalk/2016-02/msg00212.html (9,894 bytes)

123. [TowerTalk] Changing interaction of M2 40M4LLDD on 15 (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Wed, 17 Feb 2016 08:33:03 -0500
Jim, Good question (why doesnt M2 just redesign it).... note on the F12 the distance from the boom to the LL is considerably less than 1/4 wave on 15.... once the LL is reached I believe (and another
/archives//html/Towertalk/2016-02/msg00220.html (10,714 bytes)

124. [TowerTalk] "Magic" length from tower to first insulator (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Wed, 16 Mar 2016 07:50:05 -0400
I used the ARRL AB values and found that the distance recommended from the tower out was problematic. I had quite severe interaction to the guys with only about 6 from the tower to the first insulato
/archives//html/Towertalk/2016-03/msg00273.html (8,211 bytes)

125. Re: [TowerTalk] "Magic" length from tower to first insulator (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Wed, 16 Mar 2016 18:31:48 -0400
not to anyone specifically in this list of replies ... I had ~6 of steel from the tower to the first insulator and many insulators after that using the ARRL AB values. I had 3 sets of guys 40, 80, 12
/archives//html/Towertalk/2016-03/msg00290.html (11,661 bytes)

126. [TowerTalk] To Phillystran or Not (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Fri, 18 Mar 2016 08:28:10 -0400
Jim, I have to assume that that 50 is not 1/2 of the total length of that top guy correct? Are you using twice the size philly as EHS per the Philly requirements sheet? Gary K9RX Yep. I'm especially
/archives//html/Towertalk/2016-03/msg00330.html (7,016 bytes)

127. Re: [TowerTalk] Topband: Handheld Impedance Analyzer (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Tue, 29 Mar 2016 08:22:34 -0400
Hi RIck, Indeed it is quite true with yagis depending on the type of design be it OWA vs < 50 ohm with transformation the point where X=0 and minimum SWR can vary and can actually be multiple points!
/archives//html/Towertalk/2016-03/msg00424.html (8,405 bytes)

128. [TowerTalk] frustrating rain and connections... also Noalox? (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Sat, 2 Apr 2016 08:21:33 -0400
Im testing a yagi... I can raise it to ~37 for testing and lower it to about 8 for adjustment ... it was made as a duplicate to another one and testing showed it to be just that a duplicate. Until it
/archives//html/Towertalk/2016-04/msg00006.html (9,644 bytes)

129. Re: [TowerTalk] frustrating rain and connections... also Noalox? (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Sat, 2 Apr 2016 09:40:54 -0400
Thanks to the replies here and direct... preface my responses with this statement: although I can reply to these as I have below that doesnt mean it is definitive although checked as stated ... obvio
/archives//html/Towertalk/2016-04/msg00015.html (12,390 bytes)

130. Re: [TowerTalk] frustrating rain and connections... also Noalox? (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Sat, 2 Apr 2016 10:26:03 -0400
its back to normal now ~4-5 hours since the rain ended. Gary K9RX Gary, it could be an antenna issue or a feed line issue. I suggest you temporarily dangle a new coax line from the feed point down to
/archives//html/Towertalk/2016-04/msg00016.html (11,565 bytes)

131. Re: [TowerTalk] frustrating rain and connections... also Noalox? (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Sat, 2 Apr 2016 17:03:25 -0400
Thanks for the comments it is a hairpin design. It is an M2 6 element 15 that was built using their 15M6-125 antenna and converted to their 15M6DX ... so I refer to it now as a 15M6DX-125. Anyway it
/archives//html/Towertalk/2016-04/msg00023.html (10,050 bytes)

132. Re: [TowerTalk] frustrating rain and connections... also Noalox? (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Sat, 2 Apr 2016 19:15:57 -0400
No but its the same coax that was used on the first antenna and is now being used on the 20 which at 8 off the ground (too windy to raise up) is showing what Id expect to see. Also coax cant clear ou
/archives//html/Towertalk/2016-04/msg00026.html (11,375 bytes)

133. [TowerTalk] galvanizing differences (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Mon, 11 Apr 2016 20:47:37 -0400
Anyone know the difference between ASTM A153 and ASTM A475 galvanizing for guy lines? Cargo Control has EHS guy line at roughly 60% the price of other places same ratings, same weight. Seems too good
/archives//html/Towertalk/2016-04/msg00135.html (6,712 bytes)

134. Re: [TowerTalk] frustrating rain and connections... update (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Tue, 12 Apr 2016 20:02:45 -0400
An update to my post on rain and connections for those that might be interested... Ive had beams since 1978... I was off the air from 1990 through 2005 and when I returned it was in Arizona where rai
/archives//html/Towertalk/2016-04/msg00162.html (10,881 bytes)

135. [TowerTalk] Rohn 55g 60ft guyed - advice (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Thu, 14 Apr 2016 08:40:44 -0400
One set of guys would be fine. Put it at 47 it wont go anywhere assuming you have a decent base. Dont underrate the guys go with 1/4 or even 5/16. With this I dont see any reason why youd need to wor
/archives//html/Towertalk/2016-04/msg00189.html (8,689 bytes)

136. Re: [TowerTalk] Rotator Choice for Larger Yagi (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Wed, 4 May 2016 08:48:34 -0400
I believe it was called K factor.... the turning radius X the weight of the antenna... if more than one antenna add these individual values... it is indeed more a rating of the effect of the force an
/archives//html/Towertalk/2016-05/msg00040.html (9,542 bytes)

137. Re: [TowerTalk] TH-11DX and 40/30m dipole (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Thu, 12 May 2016 08:04:55 -0400
Ive done quite a bit of modeling on 40s and their interaction to 15 (and other bands)... Im installing a 40M4LLDD 30 above the top of a 12 element (6/6) 15 stack. Others have measured this antennas (
/archives//html/Towertalk/2016-05/msg00303.html (10,236 bytes)

138. Re: [TowerTalk] Change in Frequency As Antenna Height Rises Above Ground (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Sun, 29 May 2016 12:44:53 -0400
there's no "probably" to it! It is lowest (in frequency) closet to the ground. I have now range tested 2 15 meter 6 elements and 2 20 meter 5 elements as well as tested a 40 meter dipole and 4 elemen
/archives//html/Towertalk/2016-05/msg00578.html (11,609 bytes)

139. Re: [TowerTalk] [Bulk] Change in Frequency As Antenna Height Rises (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Mon, 30 May 2016 14:10:31 -0400
agreed - but I have modeled my 6 element 15 and 5 element 20's. They are conversions using a 15M6-125 to create a high strength 15M6DX (as it models much better, especially in a stack) which I call 1
/archives//html/Towertalk/2016-05/msg00595.html (13,450 bytes)

140. Re: [TowerTalk] Change in Frequency As Antenna Height Rises (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Tue, 31 May 2016 07:28:14 -0400
The purpose of the saw horses was to assemble the antennas - not to be used for any real testing beyond that other than a sanity check that things aren't way off (i.e. 10:1 SWR). I do find that testi
/archives//html/Towertalk/2016-05/msg00611.html (13,634 bytes)


This search system is powered by Namazu