Hi all, I had Uverse TV and 1 KW blew away their modem, anyone operating QRO using Spectrum for TV, Phone and Internet ? I assume would have a box with DVR and WIFI. Any problem with any feature being blown away or hash in recorded programs? If it works better than my ATT and DirecTV I might go for my second 100 on Topband hi hi Thanks
Rick N6PE ====================================================================== Dying is easy, the hard part is living On Friday, May 29, 2020, 09:00:47 AM PDT, <topband-requ...@contesting.com> wrote: Send Topband mailing list submissions to topband@contesting.com To subscribe or unsubscribe via the World Wide Web, visit http://lists.contesting.com/mailman/listinfo/topband or, via email, send a message with subject or body 'help' to topband-requ...@contesting.com You can reach the person managing the list at topband-ow...@contesting.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Topband digest..." Today's Topics: 1. 160M shunt fed choke (tony....@verizon.net) 2. Re: 160M shunt fed choke (Jim Brown) 3. Re: 160M shunt fed choke (tony....@verizon.net) 4. Re: 160M shunt fed choke (Jim Brown) 5. Re: 160M shunt fed choke (Raymond Benny) 6. Re: 160M shunt fed choke (tony....@verizon.net) 7. Re: 160M shunt fed choke (fmoeves) 8. Re: 160M shunt fed choke (Jim Brown) 9. Re: 160M shunt fed choke (Jim Brown) 10. Re: 160M shunt fed choke (Wes N7WS) ---------------------------------------------------------------------- Message: 1 Date: Thu, 28 May 2020 11:57:56 -0400 From: <tony....@verizon.net> To: <topband@contesting.com> Subject: Topband: 160M shunt fed choke Message-ID: <0a7201d63508$c1827090$448751b0$@verizon.net> Content-Type: text/plain; charset="us-ascii" I shunt feed my tower on 160M. The feed is about 4' above the base of the tower. I use a vacuum cap beta match. I use three vacuum caps. I have a vacuum relay to switch between high and low 160M. The coax from the shack is all underground to the base of the tower. The shield of the coax and the matching network is grounded to a tower leg. Is there a potential benefit to adding a ferrite core choke for this type of setup? I can easily add one inside the match box. I could follow K9YC's info for a 18 turn RG-400 on a 2.4" #31 core. Tnx for any feedback N2TK, Tony ------------------------------ Message: 2 Date: Thu, 28 May 2020 10:36:53 -0700 From: Jim Brown <j...@audiosystemsgroup.com> To: topband@contesting.com Subject: Re: Topband: 160M shunt fed choke Message-ID: <7ad4aa2c-8cc6-4512-2599-d663fe98b...@audiosystemsgroup.com> Content-Type: text/plain; charset=utf-8; format=flowed On 5/28/2020 8:57 AM, tony.kaz--- via Topband wrote: > Is there a potential benefit to adding a ferrite core choke for this type of > setup? What do you have for a radial system? That's the primary determining factor. The choke prevents the coax from being used as a radial. If you have a robust radial system, that's far less of an issue. 73, Jim K9YC ------------------------------ Message: 3 Date: Thu, 28 May 2020 14:06:21 -0400 From: <tony....@verizon.net> To: <j...@audiosystemsgroup.com>, <topband@contesting.com> Subject: Re: Topband: 160M shunt fed choke Message-ID: <0c0301d6351a$b1d90520$158b0f60$@verizon.net> Content-Type: text/plain; charset="us-ascii" Hi Jim, In ground radials - 60. Length 60-100' depending on direction due to a close in stone wall in one direction. All the coax is buried and all the shields are tied to the tower legs about a foot up the tower after the leave the ground. N2TK, Tony -----Original Message----- From: Topband <topband-bounces+tony.kaz=verizon....@contesting.com> On Behalf Of Jim Brown Sent: Thursday, May 28, 2020 1:37 PM To: topband@contesting.com Subject: Re: Topband: 160M shunt fed choke On 5/28/2020 8:57 AM, tony.kaz--- via Topband wrote: > Is there a potential benefit to adding a ferrite core choke for this > type of setup? What do you have for a radial system? That's the primary determining factor. The choke prevents the coax from being used as a radial. If you have a robust radial system, that's far less of an issue. 73, Jim K9YC _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector ------------------------------ Message: 4 Date: Thu, 28 May 2020 11:41:45 -0700 From: Jim Brown <j...@audiosystemsgroup.com> To: topband@contesting.com Subject: Re: Topband: 160M shunt fed choke Message-ID: <843d3836-6a7d-4f5e-cef2-369d6256a...@audiosystemsgroup.com> Content-Type: text/plain; charset=utf-8; format=flowed I'd guess that you're probably fine without the choke. 73, Jim K9YC On 5/28/2020 11:06 AM, tony....@verizon.net wrote: > Hi Jim, > In ground radials - 60. Length 60-100' depending on direction due to a close > in stone wall in one direction. > All the coax is buried and all the shields are tied to the tower legs about > a foot up the tower after the leave the ground. > > N2TK, Tony > > -----Original Message----- > From: Topband <topband-bounces+tony.kaz=verizon....@contesting.com> On > Behalf Of Jim Brown > Sent: Thursday, May 28, 2020 1:37 PM > To: topband@contesting.com > Subject: Re: Topband: 160M shunt fed choke > > On 5/28/2020 8:57 AM, tony.kaz--- via Topband wrote: >> Is there a potential benefit to adding a ferrite core choke for this >> type of setup? > > What do you have for a radial system? That's the primary determining > factor. The choke prevents the coax from being used as a radial. If you have > a robust radial system, that's far less of an issue. > > 73, Jim K9YC > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband Reflector > ------------------------------ Message: 5 Date: Thu, 28 May 2020 12:20:53 -0700 From: Raymond Benny <rayn...@gmail.com> Cc: 160 <topband@contesting.com> Subject: Re: Topband: 160M shunt fed choke Message-ID: <CAHv=pbgv2hgect6sg2x6xoqdpq1w7lcml20wpg73meeq626...@mail.gmail.com> Content-Type: text/plain; charset="UTF-8" One way to tell if a choke is needed I would think, is to add say, a random lenght of coax, 20 - 40 ft, to the shack end of you coax and see if your SWR changes. If so, then a then a choke could help. Jim, does this sound like a reasonable test? I'm no expert on vertical antennas, just my experience. Ray, N6VR/W7YA On Thu, May 28, 2020, 11:42 AM Jim Brown <j...@audiosystemsgroup.com> wrote: > I'd guess that you're probably fine without the choke. > > 73, Jim K9YC > > On 5/28/2020 11:06 AM, tony....@verizon.net wrote: > > Hi Jim, > > In ground radials - 60. Length 60-100' depending on direction due to a > close > > in stone wall in one direction. > > All the coax is buried and all the shields are tied to the tower legs > about > > a foot up the tower after the leave the ground. > > > > N2TK, Tony > > > > -----Original Message----- > > From: Topband <topband-bounces+tony.kaz=verizon....@contesting.com> On > > Behalf Of Jim Brown > > Sent: Thursday, May 28, 2020 1:37 PM > > To: topband@contesting.com > > Subject: Re: Topband: 160M shunt fed choke > > > > On 5/28/2020 8:57 AM, tony.kaz--- via Topband wrote: > >> Is there a potential benefit to adding a ferrite core choke for this > >> type of setup? > > > > What do you have for a radial system? That's the primary determining > > factor. The choke prevents the coax from being used as a radial. If you > have > > a robust radial system, that's far less of an issue. > > > > 73, Jim K9YC > > _________________ > > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > > > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > ------------------------------ Message: 6 Date: Thu, 28 May 2020 16:04:14 -0400 From: <tony....@verizon.net> To: <j...@audiosystemsgroup.com>, <topband@contesting.com> Subject: Re: Topband: 160M shunt fed choke Message-ID: <0cf001d6352b$29e4ba90$7dae2fb0$@verizon.net> Content-Type: text/plain; charset="us-ascii" Tnx Jim Tony -----Original Message----- From: Topband <topband-bounces+tony.kaz=verizon....@contesting.com> On Behalf Of Jim Brown Sent: Thursday, May 28, 2020 2:42 PM To: topband@contesting.com Subject: Re: Topband: 160M shunt fed choke I'd guess that you're probably fine without the choke. 73, Jim K9YC On 5/28/2020 11:06 AM, tony....@verizon.net wrote: > Hi Jim, > In ground radials - 60. Length 60-100' depending on direction due to a close > in stone wall in one direction. > All the coax is buried and all the shields are tied to the tower legs about > a foot up the tower after the leave the ground. > > N2TK, Tony > > -----Original Message----- > From: Topband <topband-bounces+tony.kaz=verizon....@contesting.com> On > Behalf Of Jim Brown > Sent: Thursday, May 28, 2020 1:37 PM > To: topband@contesting.com > Subject: Re: Topband: 160M shunt fed choke > > On 5/28/2020 8:57 AM, tony.kaz--- via Topband wrote: >> Is there a potential benefit to adding a ferrite core choke for this >> type of setup? > > What do you have for a radial system? That's the primary determining > factor. The choke prevents the coax from being used as a radial. If you have > a robust radial system, that's far less of an issue. > > 73, Jim K9YC > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband Reflector > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector ------------------------------ Message: 7 Date: Thu, 28 May 2020 16:06:43 -0400 From: fmoeves <fmoe...@twc.com> To: topband@contesting.com Subject: Re: Topband: 160M shunt fed choke Message-ID: <mailman.26.1590768002.4590.topb...@contesting.com> Content-Type: text/plain; charset=utf-8 I'm going from memory so...?I've seen a video of a simple detector.?In the video the guy ran along the feedline while transmitting low power.?You could see if there was a signal on the outside of the cable.?I'll look later to see if I find.?Fred KB4QZH? -------- Original message --------From: Raymond Benny <rayn...@gmail.com> Date: 5/28/20 3:21 PM (GMT-05:00) To: Cc: 160 <topband@contesting.com> Subject: Re: Topband: 160M shunt fed choke One way to tell if a choke is needed I would think, is to add say, a randomlenght of coax, 20 - 40 ft, to the shack end of you coax and see if yourSWR changes. If so, then a then a choke could help.Jim, does this sound like a reasonable test? I'm no expert on verticalantennas, just my experience.Ray,N6VR/W7YAOn Thu, May 28, 2020, 11:42 AM Jim Brown <j...@audiosystemsgroup.com> wrote:> I'd guess that you're probably fine without the choke.>> 73, Jim K9YC>> On 5/28/2020 11:06 AM, tony....@verizon.net wrote:> > Hi Jim,> > In ground radials - 60. Length 60-100' depending on direction due to a> close> > in stone wall in one direction.> > All the coax is buried and all the shields are tied to the tower legs> about> > a foot up the tower after the leave the ground.> >> > N2TK, Tony> >> > -----Original Me ssage-----> > From: Topband <topband-bounces+tony.kaz=verizon....@contesting.com> On> > Behalf Of Jim Brown> > Sent: Thursday, May 28, 2020 1:37 PM> > To: topband@contesting.com> > Subject: Re: Topband: 160M shunt fed choke> >> > On 5/28/2020 8:57 AM, tony.kaz--- via Topband wrote:> >> Is there a potential benefit to adding a ferrite core choke for this> >> type of setup?> >> > What do you have for a radial system?? That's the primary determining> > factor. The choke prevents the coax from being used as a radial. If you> have> > a robust radial system, that's far less of an issue.> >> > 73, Jim K9YC> > _________________> > Searchable Archives: http://www.contesting.com/_topband - Topband> Reflector> >>> _________________> Searchable Archives: http://www.contesting.com/_topband - Topband> Reflector>_________________Searchable Archives: http://www.contesting.com/_topband - Topband Reflector ------------------------------ Message: 8 Date: Thu, 28 May 2020 13:15:26 -0700 From: Jim Brown <j...@audiosystemsgroup.com> To: topband@contesting.com Subject: Re: Topband: 160M shunt fed choke Message-ID: <2e621209-c77a-43a8-3921-c19cf9028...@audiosystemsgroup.com> Content-Type: text/plain; charset=utf-8; format=flowed On 5/28/2020 12:20 PM, Raymond Benny wrote: > One way to tell if a choke is needed I would think, is to add say, a random > lenght of coax, 20 - 40 ft, to the shack end of you coax and see if your > SWR changes. If so, then a then a choke could help. > > Jim, does this sound like a reasonable test? No, I don't think so. The reasons for the choke are 1) to minimize noise pickup on the coax from coupling to the antenna, and from there to your RX; and 2) to keep TX RF off the coax shield. With the robust radial system Tony describes, it seems unlikely that the coax shield would see more than 1/60 of the TX current, or that the coax shield would significantly change the feedpoint Z, or that it would contribute audibly to RX noise. If, however, the antenna was not ideally matched to the feedline, changing the feedline length could change the Z at the transmitter. But this would be a transmission line effect, not a common mode issue. 73, Jim K9YC ------------------------------ Message: 9 Date: Thu, 28 May 2020 13:19:16 -0700 From: Jim Brown <j...@audiosystemsgroup.com> To: topband@contesting.com Subject: Re: Topband: 160M shunt fed choke Message-ID: <dea75abf-a37b-7da3-bd0d-4c58d9b38...@audiosystemsgroup.com> Content-Type: text/plain; charset=utf-8; format=flowed On 5/28/2020 1:06 PM, fmoeves wrote: > I'm going from memory so...?I've seen a video of a simple detector.?In the > video the guy ran along the feedline while transmitting low power.?You could > see if there was a signal on the outside of the cable.?I'll look later to see > if I find. Tony's feedline is buried, so could be tricky. But it IS right to move the probe along the feedline to find a current max, because the current varies along the line because it would be acting as part of the antenna. 73, Jim K9YC ------------------------------ Message: 10 Date: Thu, 28 May 2020 13:39:11 -0700 From: Wes N7WS <wes_n...@triconet.org> To: j...@audiosystemsgroup.com Cc: topband@contesting.com Subject: Re: Topband: 160M shunt fed choke Message-ID: <7c6a9c89-e6b8-4158-ade2-8abfa6bcf...@triconet.org> Content-Type: text/plain; charset=utf-8 A buried antenna. Why worry about it? Wes. N7WS Sent from my iPhone > On May 28, 2020, at 1:19 PM, Jim Brown <j...@audiosystemsgroup.com> wrote: > > ?On 5/28/2020 1:06 PM, fmoeves wrote: >> I'm going from memory so... I've seen a video of a simple detector. In the >> video the guy ran along the feedline while transmitting low power. You could >> see if there was a signal on the outside of the cable. I'll look later to >> see if I find. > > Tony's feedline is buried, so could be tricky. But it IS right to move the > probe along the feedline to find a current max, because the current varies > along the line because it would be acting as part of the antenna. > > 73, Jim K9YC > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband Reflector ------------------------------ Subject: Digest Footer _______________________________________________ Topband mailing list Topband@contesting.com http://lists.contesting.com/mailman/listinfo/topband ------------------------------ End of Topband Digest, Vol 209, Issue 22 **************************************** _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector