Re: Topband: Anybody?
On 1/1/2016 8:16 AM, K4OWR wrote: Does anyone recall that I originally asked about this? http://www.dxengineering.com/parts/dxe-160va-1?seid=dxese1=Cj0KEQiAno60BRDt89rAh7qt-4wBEiQASes2tUOULTlQpNyMARBk4ZWRxw70jODW_FJCuBJ1Td47YMgaAhgQ8P8HAQ BILL K4OWR I looked at the data sheet on this and my intuition told me the top hat didn't make sense either electrically or mechanically. I did some quick and dirty modeling with EZNEC over perfect ground and got a drive impedance around 6-j34 at 1.83 MHz. I then deleted the horizontal skirt wires and pulled out the 39 foot top loading wires to a 45 degree angle. I then got a drive impedance of around 8-j9. A rope tied to the guy anchors in the manual works perfectly to do this. These hybrid wire/ropes then become top guys. Its almost as if this was the original design, and then they wanted to make a fancy top hat. The data sheet brags about the uniform current in the vertical, but this simplified version kept the current within +/-7%. Good enough for me. I don't have a mechanical modeling program, but I don't like the DXE design in that respect either. It doesn't lend itself to a falling derrick erection method, so you have to use their patented winching fixture and bolt it to a concrete base. It seems like this is the hard to way to build a vertical. I needed an emergency 160 meter vertical a few years ago and I made a 60 footer out of 2 30' long 3" diameter irrigation pipes with 2 top loading wires pulled out. A third pipe was used as a falling derrick. Pretty simple and it worked great. Rick N6RK _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Anybody?
I looked at the data sheet on this and my intuition told me the top hat didn't make sense either electrically or mechanically. I did some quick and dirty modeling with EZNEC over perfect ground and got a drive impedance around 6-j34 at 1.83 MHz. I then deleted the horizontal skirt wires and pulled out the 39 foot top loading wires to a 45 degree angle. I then got a drive impedance of around 8-j9. A rope tied to the guy anchors in the manual works perfectly to do this. These hybrid wire/ropes then become top guys. Its almost as if this was the original design, and then they wanted to make a fancy top hat. The data sheet brags about the uniform current in the vertical, but this simplified version kept the current within +/-7%. Good enough for me. I don't have a mechanical modeling program, but I don't like the DXE design in that respect either. It doesn't lend itself to a falling derrick erection method, so you have to use their patented winching fixture and bolt it to a concrete base. It seems like this is the hard to way to build a vertical. I needed an emergency 160 meter vertical a few years ago and I made a 60 footer out of 2 30' long 3" diameter irrigation pipes with 2 top loading wires pulled out. A third pipe was used as a falling derrick. Pretty simple and it worked great. Rick N6RK On 1/1/2016 8:16 AM, K4OWR wrote: Does anyone recall that I originally asked about this? http://www.dxengineering.com/parts/dxe-160va-1?seid=dxese1=Cj0KEQiAno60BRDt89rAh7qt-4wBEiQASes2tUOULTlQpNyMARBk4ZWRxw70jODW_FJCuBJ1Td47YMgaAhgQ8P8HAQ I appreciate all the advice, but a lot of people recommended antennas that I have had for years. BILL K4OWR _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Anybody?
On Fri,1/1/2016 10:04 AM, D. Scott MacKenzie wrote: I like your RBN testing - nice idea. I wonder if the process could be automated to some extent by using WSPR. By proper programing you could alternate antennas. Might be an interesting to try. This way you could let it run over a period of time, and collected. Data is gathered in SNR and 6 digit grid. Data can then be analyzed and presented in a suitable format. Yes, with any evaluation of antenna performance, more data from more points over greater time is better. We did what we could easily do without that automation. I don't know enough about WSPR to know the extent to which two QRP rigs at the same site could TX with different callsigns in alternate transmission cycles. Another limitation is the number of WSPR stations active on 80M with antennas good enough to hear us. 73, Jim K9YC _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Anybody?
Typically there are quite a few, and over time it would build up data points. Since WSPR is a weak signal mode, the antenna question is moot. A simple script might be able to be able to be written to either switch antennas at different transmission cycles, or to key different rigs. I like the idea of switching antennas as that takes the rig out of the possible variables - even though it is probably in the noise. -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Jim Brown Sent: Friday, January 01, 2016 1:50 PM To: topband@contesting.com Subject: Re: Topband: Anybody? On Fri,1/1/2016 10:04 AM, D. Scott MacKenzie wrote: > I like your RBN testing - nice idea. I wonder if the process could be > automated to some extent by using WSPR. By proper programing you > could alternate antennas. Might be an interesting to try. This way > you could let it run over a period of time, and collected. Data is > gathered in SNR and 6 digit grid. Data can then be analyzed and presented in a suitable format. Yes, with any evaluation of antenna performance, more data from more points over greater time is better. We did what we could easily do without that automation. I don't know enough about WSPR to know the extent to which two QRP rigs at the same site could TX with different callsigns in alternate transmission cycles. Another limitation is the number of WSPR stations active on 80M with antennas good enough to hear us. 73, Jim K9YC _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Anybody?
On Fri,1/1/2016 10:58 AM, D. Scott MacKenzie wrote: I like the idea of switching antennas as that takes the rig out of the possible variables - even though it is probably in the noise. But then you've got to have the rig use two different callsigns. Far easier to use two rigs whose power can be well controlled, each with its own callsign. K3 and KX3 meet this requirement, power can be set with a decent wattmeter. 73, Jim K9YC _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Anybody?
I can confirm Jim's experience that the Spiderbeam poles are NOT very robust, and are not sufficiently robust to be used in the manner Spiderbeam describes. We bought a 40 ft Spiderbeam pole to use as part of an 80M vertical for FD and county expeditions for the California QSO Party. The antenna worked fine -- until the wind blew and broke the Spiderbeam mast at the point of attachment to the rest of the antenna. The poles are advertised as being reinforced by crossed fibers; our pole was not, which is why it broke. The mechanical engineer for our antenna, Glen, W6GJB, is an M.E. by degree, and practices as an aeronautical engineer in the space program. He's quite familiar with materials and the stresses in a given design. He holds a dozen or so patents. I can also confirm that the antenna is NOT easy to erect, and for the same reason Jim cited -- the top wobbles around, generating lots of side stresses as it goes up, making it more difficult to raise. We needed five people, one on each guy, and two at the antenna base. Our antenna, and our experience, is described here. http://k9yc.com/80M-FDVertical.pdf We're very pleased with its performance and every aspect of its design other than the Spiderbeam pole. We tested the antenna over poor ground at Glen's QTH, and our FD and CQP sites also have poor ground. Over good ground, the advantage of this antenna over the reference inverted Vee would increase by 3-6 dB. 73, Jim K9YC On Fri,1/1/2016 9:13 AM, Jim Garland wrote: I have the 26m (85.3 ft) Spiderbeam fiberglass vertical, with sixty 30m radials on top of sandy desert soil. It uses four 7m top hat wires, and is tuned to 1.820 MHz, where the VSWR is 1.47:1. I feed it with about 300m of buried hardline. The assembly instructions are clear and the antenna tuned to frequency very easily. It's a good perfomer, although the radiatmg wire only extends up to about 24m . Structurally, the antenna is relatively light duty. It has four levels of guy lines (16 guys total), the top two levels being 1 mm Kevlar and very thin polypropylene fishing line attached to the top hat wires.. The top few sections of mast resemble fishing poles and are very flexible. The bottom section is roughly 6 inch OD and with the supplied rubber cap fits tightly into standard PVC plumbing tubing. I anchored a 1m length of the PVC into concrete and that made a dandy anchor point for the mast. The top hat is made of very thin wire with a low breaking strength. Rodents ate through the Kevlar guys last year and toppled the antenna, which broke into three pieces. I redid the guys, elevating the anchor points, so don't expect that problem to recur. Don't be deceived by the YouTube video showing the pole being raised by two people. When the wire is attached to the pole, including the top hat wires, erection for me has been a four hour job involving a minimum of six people; four at each guy anchor and two to hoist the mast. The slightest wind makes erection very difficult because slight flexing prevents the nested sections from sliding. Last time I did this I mounted a 12 foot long 4x4 post in concrete next to the pole with an inexpensive hand winch to raise the sections. That helped a lot. I can send photos to anyone interested. 73, Jim W8ZR _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: Anybody?
Does anyone recall that I originally asked about this? http://www.dxengineering.com/parts/dxe-160va-1?seid=dxese1=Cj0KEQiAno60BRDt89rAh7qt-4wBEiQASes2tUOULTlQpNyMARBk4ZWRxw70jODW_FJCuBJ1Td47YMgaAhgQ8P8HAQ I appreciate all the advice, but a lot of people recommended antennas that I have had for years. BILL K4OWR _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Anybody?
Bill, This is a standard toploaded vertical. Spiderbeam sells the same with fiber mast. (http://www.spiderbeam.com/product_info.php?info=p337_160m%20Wire%20Vertical%20kit%20including%2018m%20fiberglass%20pole.html) Like any other vertical the performance of your antenna depends on your radial system. I do not have experience with these commercial available antennas as I have tree of that height which I use. 73 Henk PA5KT Op 1/1/2016 om 5:16 PM schreef K4OWR: Does anyone recall that I originally asked about this? http://www.dxengineering.com/parts/dxe-160va-1?seid=dxese1=Cj0KEQiAno60BRDt89rAh7qt-4wBEiQASes2tUOULTlQpNyMARBk4ZWRxw70jODW_FJCuBJ1Td47YMgaAhgQ8P8HAQ I appreciate all the advice, but a lot of people recommended antennas that I have had for years. BILL K4OWR _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Anybody?
I have the 26m (85.3 ft) Spiderbeam fiberglass vertical, with sixty 30m radials on top of sandy desert soil. It uses four 7m top hat wires, and is tuned to 1.820 MHz, where the VSWR is 1.47:1. I feed it with about 300m of buried hardline. The assembly instructions are clear and the antenna tuned to frequency very easily. It's a good perfomer, although the radiatmg wire only extends up to about 24m . Structurally, the antenna is relatively light duty. It has four levels of guy lines (16 guys total), the top two levels being 1 mm Kevlar and very thin polypropylene fishing line attached to the top hat wires.. The top few sections of mast resemble fishing poles and are very flexible. The bottom section is roughly 6 inch OD and with the supplied rubber cap fits tightly into standard PVC plumbing tubing. I anchored a 1m length of the PVC into concrete and that made a dandy anchor point for the mast. The top hat is made of very thin wire with a low breaking strength. Rodents ate through the Kevlar guys last year and toppled the antenna, which broke into three pieces. I redid the guys, elevating the anchor points, so don't expect that problem to recur. Don't be deceived by the YouTube video showing the pole being raised by two people. When the wire is attached to the pole, including the top hat wires, erection for me has been a four hour job involving a minimum of six people; four at each guy anchor and two to hoist the mast. The slightest wind makes erection very difficult because slight flexing prevents the nested sections from sliding. Last time I did this I mounted a 12 foot long 4x4 post in concrete next to the pole with an inexpensive hand winch to raise the sections. That helped a lot. I can send photos to anyone interested. 73, Jim W8ZR > -Original Message- > From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Henk PA5KT > Sent: Friday, January 01, 2016 09:29 AM > To: topband@contesting.com > Subject: Re: Topband: Anybody? > > Bill, > > This is a standard toploaded vertical. Spiderbeam sells the same with > fiber mast. > (http://www.spiderbeam.com/product_info.php?info=p337_160m%20Wire%20Vertical %20 > kit%20including%2018m%20fiberglass%20pole.html) > > Like any other vertical the performance of your antenna depends on your > radial system. > > I do not have experience with these commercial available antennas as I > have tree of that height which I use. > > 73 Henk PA5KT > > Op 1/1/2016 om 5:16 PM schreef K4OWR: > > Does anyone recall that I originally asked about this? > > > > http://www.dxengineering.com/parts/dxe-160va- > 1?seid=dxese1=Cj0KEQiAno60BRDt89rAh7qt- > 4wBEiQASes2tUOULTlQpNyMARBk4ZWRxw70jODW_FJCuBJ1Td47YMgaAhgQ8P8 > HAQ > > > > > > I appreciate all the advice, but a lot of people recommended antennas > > that I have had for years. > > > > BILL K4OWR > > > > _ > > Topband Reflector Archives - http://www.contesting.com/_topband > > _ > Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: Anybody?
I like your RBN testing - nice idea. I wonder if the process could be automated to some extent by using WSPR. By proper programing you could alternate antennas. Might be an interesting to try. This way you could let it run over a period of time, and collected. Data is gathered in SNR and 6 digit grid. Data can then be analyzed and presented in a suitable format. I would try it but no antennas are up now nor will be for the foreseeable future. -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Jim Brown Sent: Friday, January 01, 2016 12:40 PM To: topband@contesting.com Subject: Re: Topband: Anybody? I can confirm Jim's experience that the Spiderbeam poles are NOT very robust, and are not sufficiently robust to be used in the manner Spiderbeam describes. We bought a 40 ft Spiderbeam pole to use as part of an 80M vertical for FD and county expeditions for the California QSO Party. The antenna worked fine -- until the wind blew and broke the Spiderbeam mast at the point of attachment to the rest of the antenna. The poles are advertised as being reinforced by crossed fibers; our pole was not, which is why it broke. The mechanical engineer for our antenna, Glen, W6GJB, is an M.E. by degree, and practices as an aeronautical engineer in the space program. He's quite familiar with materials and the stresses in a given design. He holds a dozen or so patents. I can also confirm that the antenna is NOT easy to erect, and for the same reason Jim cited -- the top wobbles around, generating lots of side stresses as it goes up, making it more difficult to raise. We needed five people, one on each guy, and two at the antenna base. Our antenna, and our experience, is described here. http://k9yc.com/80M-FDVertical.pdf We're very pleased with its performance and every aspect of its design other than the Spiderbeam pole. We tested the antenna over poor ground at Glen's QTH, and our FD and CQP sites also have poor ground. Over good ground, the advantage of this antenna over the reference inverted Vee would increase by 3-6 dB. 73, Jim K9YC On Fri,1/1/2016 9:13 AM, Jim Garland wrote: > I have the 26m (85.3 ft) Spiderbeam fiberglass vertical, with sixty > 30m radials on top of sandy desert soil. It uses four 7m top hat > wires, and is tuned to 1.820 MHz, where the VSWR is 1.47:1. I feed it > with about 300m of buried hardline. The assembly instructions are > clear and the antenna tuned to frequency very easily. It's a good > perfomer, although the radiatmg wire only extends up to about 24m . > > Structurally, the antenna is relatively light duty. It has four levels > of guy lines (16 guys total), the top two levels being 1 mm Kevlar and > very thin polypropylene fishing line attached to the top hat wires.. > The top few sections of mast resemble fishing poles and are very > flexible. The bottom section is roughly 6 inch OD and with the > supplied rubber cap fits tightly into standard PVC plumbing tubing. I > anchored a 1m length of the PVC into concrete and that made a dandy anchor point for the mast. > > The top hat is made of very thin wire with a low breaking strength. > Rodents ate through the Kevlar guys last year and toppled the antenna, > which broke into three pieces. I redid the guys, elevating the anchor > points, so don't expect that problem to recur. Don't be deceived by > the YouTube video showing the pole being raised by two people. When > the wire is attached to the pole, including the top hat wires, > erection for me has been a four hour job involving a minimum of six > people; four at each guy anchor and two to hoist the mast. The > slightest wind makes erection very difficult because slight flexing > prevents the nested sections from sliding. Last time I did this I > mounted a 12 foot long 4x4 post in concrete next to the pole with an > inexpensive hand winch to raise the sections. That helped a lot. I can send photos to anyone interested. > 73, > Jim W8ZR _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: anybody in Eu using JT-9 or JT-65
alexey yes, i understand the thinking, re JT-9 / JT-65; best QSO you never heard as W4ZV said... and, 'if i did not hear it with my ears, it does not exist, I can not work it, it doesn't count' also.. still, ARRL DXCC desk doesn't care what mode we use, right? sowhat the heck? as jim, K9YC pointed out, directional receiving antennas, 'reasonably efficient' transmit antennas, and receivers, transmitters, amplifiers are still necessary...I am just adding K1JT's impressive software to the toolbox. I'm just trying to work something on what sounds like a dead band. Today, it was impressive. 20 mins past sunrise, i was still de-coding vk3xq ( and he heard me ), and the band sounded 'dead'I rarely work any dx 5 minutes after sunrise on top band, from this QTH.. reception in suburban locations is challenging. Are multi-acre, deep rural locations a requirement for peer approval when chasing dx on top band? I hope not. To be sure, when signals become readable again, I will be back on cw... 73, w5xz, dan On Tuesday, August 12, 2014 10:01 AM, ALEXEY OGORODOV ua4...@mail.ru wrote: Hello brethren, I´m ready to be crucified yet I couldn´t resist asking a question: What's the value of JT modes qso for a dxer? IMHO Digimodes undermine the value of low band dxing. I don't arfue over reliability of the modes and their help in extension of hamradio capabilities in general yet JT and such do not require much from the operator. With all due respect, Alex _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: anybody in Eu using JT-9 or JT-65
greetings to pass the time through the summer doldrums, I've been playing with weak signal digi-modes. Near sunrise, am having fair luck to VK, w jt-65... VK3XQ comes through almost every day.. but, at Eu sunrise, my cq's go un-answered, even with kw power. Is the band really THAT bad to Eu, still? from a noisy suburban location, WSJT-x seems to help... 73, W5XZ, Dan _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: anybody in Eu using JT-9 or JT-65
There's the band, and then there's folks using the band. Both have to line up! Important thing is that it is winter in VK :-). So more likely for VK's to be on topband than for EU's. I don't do JT-65 but below I share some of my experience with CW this summer on 160M: Just in the past week I have been able to hear intermittent EU 160M CW activity as I clean up my K9AY loop. In the Summer Stew, I worked one EU, which is kinda the best case I had hoped for. I was surprised when I went back this morning to look at the reversebeacon reports for the summer stew... for a bit I was getting spotted on 160M on several places in Europe. I notice that NO3M who was also very active in Summer Stew was getting spotted too but not at exact same times: grep N3QE 20140622.csv | grep 160m | grep EU DR1A,DL,EU,1823.3,160m,N3QE,K,NA,CQ,10,2014-06-22 01:40:23,21,CW GW8IZR,GW,EU,1823.3,160m,N3QE,K,NA,CQ,6,2014-06-22 01:40:36,21,CW GW8IZR,GW,EU,1823.4,160m,N3QE,K,NA,CQ,7,2014-06-22 01:45:19,22,CW GW8IZR,GW,EU,1823.4,160m,N3QE,K,NA,CQ,9,2014-06-22 01:57:52,21,CW DR1A,DL,EU,1823.4,160m,N3QE,K,NA,CQ,23,2014-06-22 02:02:35,24,CW DL1EMY,DL,EU,1823.4,160m,N3QE,K,NA,CQ,26,2014-06-22 02:03:20,24,CW DR1A,DL,EU,1823.4,160m,N3QE,K,NA,CQ,14,2014-06-22 02:12:56,23,CW DL1EMY,DL,EU,1823.4,160m,N3QE,K,NA,CQ,17,2014-06-22 02:13:10,23,CW GW8IZR,GW,EU,1823.4,160m,N3QE,K,NA,CQ,6,2014-06-22 02:16:48,24,CW GW8IZR,GW,EU,1823.4,160m,N3QE,K,NA,CQ,7,2014-06-22 02:23:54,24,CW DR1A,DL,EU,1823.4,160m,N3QE,K,NA,CQ,4,2014-06-22 02:25:52,24,CW GW8IZR,GW,EU,1823.4,160m,N3QE,K,NA,CQ,7,2014-06-22 02:34:00,24,CW DL1EMY,DL,EU,1823.4,160m,N3QE,K,NA,CQ,3,2014-06-22 02:34:17,24,CW DR1A,DL,EU,1823.4,160m,N3QE,K,NA,CQ,8,2014-06-22 02:36:48,20,CW GW8IZR,GW,EU,1823.4,160m,N3QE,K,NA,CQ,6,2014-06-22 02:44:11,22,CW grep NO3M 20140622.csv | grep 160m | grep EU GW8IZR,GW,EU,1819.4,160m,NO3M,K,NA,CQ,10,2014-06-22 03:33:30,29,CW EI6IZ,EI,EU,1819.4,160m,NO3M,K,NA,CQ,10,2014-06-22 03:33:43,29,CW GW8IZR,GW,EU,1819.4,160m,NO3M,K,NA,CQ,25,2014-06-22 03:45:06,29,CW EI6IZ,EI,EU,1819.4,160m,NO3M,K,NA,CQ,21,2014-06-22 03:48:16,28,CW Tim N3QE On Tue, Aug 12, 2014 at 9:59 AM, Dan Edward Dba East edwards dan.n.edwa...@sbcglobal.net wrote: greetings to pass the time through the summer doldrums, I've been playing with weak signal digi-modes. Near sunrise, am having fair luck to VK, w jt-65... VK3XQ comes through almost every day.. but, at Eu sunrise, my cq's go un-answered, even with kw power. Is the band really THAT bad to Eu, still? from a noisy suburban location, WSJT-x seems to help... 73, W5XZ, Dan _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: anybody in Eu using JT-9 or JT-65
Dan Edward Dba East edwards dan.n.edwa...@sbcglobal.net wrote: greetings to pass the time through the summer doldrums, I've been playing with weak signal digi-modes. Near sunrise, am having fair luck to VK, w jt-65... VK3XQ comes through almost every day.. but, at Eu sunrise, my cq's go un-answered, even with kw power. Is the band really THAT bad to Eu, still? from a noisy suburban location, WSJT-x seems to help... I'm a late night person so sunrise is unlikely for me but the band has been very quiet late evening/early morning of late, apart from the S9++ static from summer storms. CQs on JT9/65 have only registered at most two or three eu stations on the RB sites but no replies. 80m has been quite good but few new DX stations to work! VK/ZL coming through grey line, and Namibia/ZS most evenings. 73, W5XZ, Dan _ Topband Reflector Archives - http://www.contesting.com/_topband -- Brian D G3VGZ _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: anybody in Eu using JT-9 or JT-65
Hello brethren, I´m ready to be crucified yet I couldn´t resist asking a question: What's the value of JT modes qso for a dxer? IMHO Digimodes undermine the value of low band dxing. I don't arfue over reliability of the modes and their help in extension of hamradio capabilities in general yet JT and such do not require much from the operator. With all due respect, Alex _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: anybody in Eu using JT-9 or JT-65
On 8/12/2014 8:00 AM, ALEXEY OGORODOV wrote: What's the value of JT modes qso for a dxer? There's far more to ham radio than making QSOs on CW (which I have been doing for 59 years). There's also station and antenna building, learning new techniques, interfacing computers to rigs, and so on. From my QTH 5 miles from the Pacific, 70 miles S of San Francisco, I haven't heard EU on 160 for three seasons, and I've never heard any stations from eastern Europe in the 8 years I've lived here. If any of K1JT's WSJT modes let me do that, I'll use them. They are NOT automatic modes, they do require operator skill and knowledge of propagation, and they do require transmitters, receivers, and antennas. Although W5XZ did not say so in his post, he often is on the band calling CQ on CW. I know because I hear him. 73, Jim K9YC _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: Anybody has used Hi-Z for sale?
HI-Z is not selling so I am asking whether anybody has used Hi-Z for sale? All except HI-Z 8, for which I have no space. Ignacy, NO9E ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
Re: Topband: Anybody has used Hi-Z for sale?
Ignacy, why is Hi-Z not selling? Has the patent issue resurfaced? 73, Joe K2XX On 1/6/2012 4:51 PM, Ignacy Misztal wrote: HI-Z is not selling so I am asking whether anybody has used Hi-Z for sale? All except HI-Z 8, for which I have no space. Ignacy, NO9E ___ UR RST IS ... ... ..9 QSB QSB - hw? BK ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
