Re: Topband: WD1A
Hi Roger, I use a 800 ft bi directional beverage using the WD1A wire. I am using the transformers sold by KD9SV to feed and terminate it. I use some small nylon cord to help support it between each rigid support. It does fairly well but have no way to compare it to a single wire in that direction. On paper it does not look very good and some day I may change over to two separated copper or copper weld wires but this was easier at the time I needed it. GL on whatever you decide. 73 Mike K4PI _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: WD1A wire
Search for Feldkabel on ebay.de. Most sellers also ship to rest of Europe. 73 Henk PA5KT Op 8/29/2013 7:28 PM, ct1...@sapo.pt schreef: Hi I am also interested in any european source :) Very hard to find this wire Filipe CT1ILT F4VPX Quoting Neil G0JHC g0...@blueyonder.co.uk: Those are all very good prices from NA. Here in the UK, the only source I found was Army Surplus, the best deal was $85 for 2000ft spools + $15 shipping. Anyone have any cheaper sources in the UK? Neil G0JHC -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of topband-requ...@contesting.com Sent: 29 August 2013 17:00 To: topband@contesting.com Subject: Topband Digest, Vol 128, Issue 31 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. WD1A wire (Larry Molitor) 2. Re: WD1A wire (Herb Schoenbohm) 3. Re: WD1A wire (Larry Molitor) 4. Re: data follow up to W4ZV and K2AV comments (Tim Duffy) 5. Spiderbeam mast UV Resistance? (Jim Garland) 6. Re: WD1A wire (ZR) -- Message: 1 Date: Wed, 28 Aug 2013 12:32:07 -0700 (PDT) From: Larry Molitor w7...@yahoo.com To: topband@contesting.com topband@contesting.com Subject: Topband: WD1A wire Message-ID: 1377718327.441.yahoomail...@web126202.mail.ne1.yahoo.com Content-Type: text/plain; charset=us-ascii Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV -- Message: 2 Date: Wed, 28 Aug 2013 15:58:02 -0400 From: Herb Schoenbohm he...@vitelcom.net To: topband@contesting.com Subject: Re: Topband: WD1A wire Message-ID: 521e564a.6050...@vitelcom.net Content-Type: text/plain; charset=ISO-8859-1; format=flowed Larry try eBay that is where I bought my last 2500 feet for 28 bucks but be sure to not get it tangled as that is a mess or long runs. Herb Schoenbohm, KV4FZ On 8/28/2013 3:32 PM, Larry Molitor wrote: Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV _ Topband Reflector -- Message: 3 Date: Wed, 28 Aug 2013 13:53:54 -0700 (PDT) From: Larry Molitor w7...@yahoo.com To: ZR z...@jeremy.mv.com, topband@contesting.com topband@contesting.com Subject: Re: Topband: WD1A wire Message-ID: 1377723234.85498.yahoomail...@web126206.mail.ne1.yahoo.com Content-Type: text/plain; charset=iso-8859-1 Thanks Carl, even though it wasn't much help. Need some new wire for some BOG experiments, mostly for 630 meters. Ran outa cheap insulated wire. Considering cat5 because it's cheaper than any single conductor wire you can buy. But WD1A ?is not as appetizing to the varmits and in my old age, I really hate splicing wire in the snow. Anybody even run bare wire on the ground? I tried that when I was in AZ and it didn't work but the soil at that location was very very good. Maybe it would work here over frozen sand and rock? Larry - W7IUV From: ZR z...@jeremy.mv.com To: Larry Molitor w7...@yahoo.com; topband@contesting.com Sent: Wednesday, August 28, 2013 1:26 PM Subject: Re: Topband: WD1A wire The last reel I bought was 2.5km for $40 plus about $20 shipping from Ohio about 3-4 years ago on Fleabay. It was listed strangely but I forget how; I believe I searched for military wire or something similar. I see some speculators peddling it at .10/ft Carl KM1H - Original Message - From: Larry Molitor w7...@yahoo.com To: topband@contesting.com Sent: Wednesday, August 28, 2013 3:32 PM Subject: Topband: WD1A wire Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV _ Topband Reflector - No virus found in this message. Checked by AVG - www.avg.com[1] Version: 10.0.1432 / Virus Database: 3211/6115 - Release Date: 08/28/13 -- Message: 4 Date: Wed, 28 Aug 2013 22:02:07 -0400 From: Tim Duffy k...@k3lr.com To: 'Bill Tippett' btipp...@alum.mit.edu, topband@contesting.com Subject: Re
Re: Topband: WD1A wire
The last reel I bought was 2.5km for $40 plus about $20 shipping from Ohio about 3-4 years ago on Fleabay. It was listed strangely but I forget how; I believe I searched for military wire or something similar. I see some speculators peddling it at .10/ft Carl KM1H - Original Message - From: Larry Molitor w7...@yahoo.com To: topband@contesting.com Sent: Wednesday, August 28, 2013 3:32 PM Subject: Topband: WD1A wire Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV _ Topband Reflector - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1432 / Virus Database: 3211/6115 - Release Date: 08/28/13 _ Topband Reflector
Re: Topband: WD1A wire
Those are all very good prices from NA. Here in the UK, the only source I found was Army Surplus, the best deal was $85 for 2000ft spools + $15 shipping. Anyone have any cheaper sources in the UK? Neil G0JHC -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of topband-requ...@contesting.com Sent: 29 August 2013 17:00 To: topband@contesting.com Subject: Topband Digest, Vol 128, Issue 31 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. WD1A wire (Larry Molitor) 2. Re: WD1A wire (Herb Schoenbohm) 3. Re: WD1A wire (Larry Molitor) 4. Re: data follow up to W4ZV and K2AV comments (Tim Duffy) 5. Spiderbeam mast UV Resistance? (Jim Garland) 6. Re: WD1A wire (ZR) -- Message: 1 Date: Wed, 28 Aug 2013 12:32:07 -0700 (PDT) From: Larry Molitor w7...@yahoo.com To: topband@contesting.com topband@contesting.com Subject: Topband: WD1A wire Message-ID: 1377718327.441.yahoomail...@web126202.mail.ne1.yahoo.com Content-Type: text/plain; charset=us-ascii Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV -- Message: 2 Date: Wed, 28 Aug 2013 15:58:02 -0400 From: Herb Schoenbohm he...@vitelcom.net To: topband@contesting.com Subject: Re: Topband: WD1A wire Message-ID: 521e564a.6050...@vitelcom.net Content-Type: text/plain; charset=ISO-8859-1; format=flowed Larry try eBay that is where I bought my last 2500 feet for 28 bucks but be sure to not get it tangled as that is a mess or long runs. Herb Schoenbohm, KV4FZ On 8/28/2013 3:32 PM, Larry Molitor wrote: Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV _ Topband Reflector -- Message: 3 Date: Wed, 28 Aug 2013 13:53:54 -0700 (PDT) From: Larry Molitor w7...@yahoo.com To: ZR z...@jeremy.mv.com, topband@contesting.com topband@contesting.com Subject: Re: Topband: WD1A wire Message-ID: 1377723234.85498.yahoomail...@web126206.mail.ne1.yahoo.com Content-Type: text/plain; charset=iso-8859-1 Thanks Carl, even though it wasn't much help. Need some new wire for some BOG experiments, mostly for 630 meters. Ran outa cheap insulated wire. Considering cat5 because it's cheaper than any single conductor wire you can buy. But WD1A ?is not as appetizing to the varmits and in my old age, I really hate splicing wire in the snow. Anybody even run bare wire on the ground? I tried that when I was in AZ and it didn't work but the soil at that location was very very good. Maybe it would work here over frozen sand and rock? Larry - W7IUV From: ZR z...@jeremy.mv.com To: Larry Molitor w7...@yahoo.com; topband@contesting.com Sent: Wednesday, August 28, 2013 1:26 PM Subject: Re: Topband: WD1A wire The last reel I bought was 2.5km for $40 plus about $20 shipping from Ohio about 3-4 years ago on Fleabay. It was listed strangely but I forget how; I believe I searched for military wire or something similar. I see some speculators peddling it at .10/ft Carl KM1H - Original Message - From: Larry Molitor w7...@yahoo.com To: topband@contesting.com Sent: Wednesday, August 28, 2013 3:32 PM Subject: Topband: WD1A wire Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV _ Topband Reflector - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1432 / Virus Database: 3211/6115 - Release Date: 08/28/13 -- Message: 4 Date: Wed, 28 Aug 2013 22:02:07 -0400 From: Tim Duffy k...@k3lr.com To: 'Bill Tippett' btipp...@alum.mit.edu, topband@contesting.com Subject: Re: Topband: data follow up to W4ZV and K2AV comments Message-ID: 4E27EE2D50804B1B96D1EF8096DF3837@laptop Content-Type: text/plain; charset=us-ascii For the record: 40 meter antennas at W3LPL: Two full size 3 ele Yagi's at 190 feet over 100 feet - 48 foot booms. 40 meter antennas at K3LR Three full size 4 ele OWA Yagi's at 260 feet over 190 feet over 118 feet. 48 foot booms. 7 take off angle combinations are available. QSOs for 40 meters in this contest: K3LR 1767 Europe and 144 Asia
Re: Topband: WD1A wire
Hi I am also interested in any european source :) Very hard to find this wire Filipe CT1ILT F4VPX Quoting Neil G0JHC g0...@blueyonder.co.uk: Those are all very good prices from NA. Here in the UK, the only source I found was Army Surplus, the best deal was $85 for 2000ft spools + $15 shipping. Anyone have any cheaper sources in the UK? Neil G0JHC -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of topband-requ...@contesting.com Sent: 29 August 2013 17:00 To: topband@contesting.com Subject: Topband Digest, Vol 128, Issue 31 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. WD1A wire (Larry Molitor) 2. Re: WD1A wire (Herb Schoenbohm) 3. Re: WD1A wire (Larry Molitor) 4. Re: data follow up to W4ZV and K2AV comments (Tim Duffy) 5. Spiderbeam mast UV Resistance? (Jim Garland) 6. Re: WD1A wire (ZR) -- Message: 1 Date: Wed, 28 Aug 2013 12:32:07 -0700 (PDT) From: Larry Molitor w7...@yahoo.com To: topband@contesting.com topband@contesting.com Subject: Topband: WD1A wire Message-ID: 1377718327.441.yahoomail...@web126202.mail.ne1.yahoo.com Content-Type: text/plain; charset=us-ascii Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV -- Message: 2 Date: Wed, 28 Aug 2013 15:58:02 -0400 From: Herb Schoenbohm he...@vitelcom.net To: topband@contesting.com Subject: Re: Topband: WD1A wire Message-ID: 521e564a.6050...@vitelcom.net Content-Type: text/plain; charset=ISO-8859-1; format=flowed Larry try eBay that is where I bought my last 2500 feet for 28 bucks but be sure to not get it tangled as that is a mess or long runs. Herb Schoenbohm, KV4FZ On 8/28/2013 3:32 PM, Larry Molitor wrote: Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV _ Topband Reflector -- Message: 3 Date: Wed, 28 Aug 2013 13:53:54 -0700 (PDT) From: Larry Molitor w7...@yahoo.com To: ZR z...@jeremy.mv.com, topband@contesting.com topband@contesting.com Subject: Re: Topband: WD1A wire Message-ID: 1377723234.85498.yahoomail...@web126206.mail.ne1.yahoo.com Content-Type: text/plain; charset=iso-8859-1 Thanks Carl, even though it wasn't much help. Need some new wire for some BOG experiments, mostly for 630 meters. Ran outa cheap insulated wire. Considering cat5 because it's cheaper than any single conductor wire you can buy. But WD1A ?is not as appetizing to the varmits and in my old age, I really hate splicing wire in the snow. Anybody even run bare wire on the ground? I tried that when I was in AZ and it didn't work but the soil at that location was very very good. Maybe it would work here over frozen sand and rock? Larry - W7IUV From: ZR z...@jeremy.mv.com To: Larry Molitor w7...@yahoo.com; topband@contesting.com Sent: Wednesday, August 28, 2013 1:26 PM Subject: Re: Topband: WD1A wire The last reel I bought was 2.5km for $40 plus about $20 shipping from Ohio about 3-4 years ago on Fleabay. It was listed strangely but I forget how; I believe I searched for military wire or something similar. I see some speculators peddling it at .10/ft Carl KM1H - Original Message - From: Larry Molitor w7...@yahoo.com To: topband@contesting.com Sent: Wednesday, August 28, 2013 3:32 PM Subject: Topband: WD1A wire Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV _ Topband Reflector - No virus found in this message. Checked by AVG - www.avg.com[1] Version: 10.0.1432 / Virus Database: 3211/6115 - Release Date: 08/28/13 -- Message: 4 Date: Wed, 28 Aug 2013 22:02:07 -0400 From: Tim Duffy k...@k3lr.com To: 'Bill Tippett' btipp...@alum.mit.edu, topband@contesting.com Subject: Re: Topband: data follow up to W4ZV and K2AV comments Message-ID: 4E27EE2D50804B1B96D1EF8096DF3837@laptop Content-Type: text/plain
Topband: WD1A wire
Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV _ Topband Reflector
Re: Topband: WD1A wire
Larry try eBay that is where I bought my last 2500 feet for 28 bucks but be sure to not get it tangled as that is a mess or long runs. Herb Schoenbohm, KV4FZ On 8/28/2013 3:32 PM, Larry Molitor wrote: Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV _ Topband Reflector _ Topband Reflector
Re: Topband: WD1A wire
Thanks Carl, even though it wasn't much help. Need some new wire for some BOG experiments, mostly for 630 meters. Ran outa cheap insulated wire. Considering cat5 because it's cheaper than any single conductor wire you can buy. But WD1A is not as appetizing to the varmits and in my old age, I really hate splicing wire in the snow. Anybody even run bare wire on the ground? I tried that when I was in AZ and it didn't work but the soil at that location was very very good. Maybe it would work here over frozen sand and rock? Larry - W7IUV From: ZR z...@jeremy.mv.com To: Larry Molitor w7...@yahoo.com; topband@contesting.com Sent: Wednesday, August 28, 2013 1:26 PM Subject: Re: Topband: WD1A wire The last reel I bought was 2.5km for $40 plus about $20 shipping from Ohio about 3-4 years ago on Fleabay. It was listed strangely but I forget how; I believe I searched for military wire or something similar. I see some speculators peddling it at .10/ft Carl KM1H - Original Message - From: Larry Molitor w7...@yahoo.com To: topband@contesting.com Sent: Wednesday, August 28, 2013 3:32 PM Subject: Topband: WD1A wire Anyone know of a good source for WD1A field phone wire these days? Best I've found so far runs abut 60 bux shipped to WA for a 0.5 km spool. Thanks, Larry - W7IUV _ Topband Reflector - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1432 / Virus Database: 3211/6115 - Release Date: 08/28/13 _ Topband Reflector
Topband: WD1A
There are no perfect solutions for Beverage wire and all have problems. Military commo wire is normally used in short term tactical telephone systems and sees usage from a few days to a few weeks. As units move, the wire is recovered and reused. For longer term strategic installations multi-connector wire is used and it is much more robust. The WD1A we can currently get was designed for the newer digital telephone systems that came on line in the late 70's and 80's. It replaced the older more robust WD1 tip and ring phone systems. For bi-directional Beverage antenna systems, WD1A works well but as Paul has described. BUT there are issues in the NE with trees and limbs falling, moose and deer crossing not to mention vandalism from hunters and other wood walkers. Trying to mitigate damage from a falling branch using his strain relief is a great idea. I do the same when I attach the antenna to the trees on insulators by a very loose slip knot. You have to remember however that WD1A is not designed for long term installations. The PE and steel wire have strength but not enough to survive direct impact from trees, humans or animals. Craig K1QX ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
Re: Topband: WD1A
Has anyone ever made any attempt to characterize the line at HF? A simple process like that would eliminate all speculation about RF performance, and make rational cost vs. performance decisions. Surely someone somewhere has made some reasonable attempt at characterizing the line. 73 Tom ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
Re: Topband: WD1A
I think the characteristics of so-called WD-1 surplus phone line varies. FWIW, the two short samples of WD-1 that I have here are as follows: 115 ohms impedance, calculated from the following: .033 diameter (averaged), .0685 spacing. The dielectric constant of the insulation (polyethylene) is 2.2. I just made three transformers for someone using that line as a bi-directional Beverage, but I think more tests need to be run to see how it really works in actual practice. But so far, so good. :-) 73, Mike www.w0btu.com On Mon, Jul 23, 2012 at 8:43 AM, Tom W8JI w...@w8ji.com wrote: Has anyone ever made any attempt to characterize the line at HF? ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
Re: Topband: WD1A
I think the characteristics of so-called WD-1 surplus phone line varies. FWIW, the two short samples of WD-1 that I have here are as follows: 115 ohms impedance, calculated from the following: .033 diameter (averaged), .0685 spacing. The dielectric constant of the insulation (polyethylene) is 2.2. By sweeping it with a carbon 250 ohm pot on one end, and a SWR meter on the other, we can find a resistance value that results in minimal SWR change. Then, by measuring pot resistance with a ohmmeter, we know one thing about it. An impedance error of 20 ohms on a 100 ohm line is as meaningful as an 80 ohm error on 400 ohm line. By measuring attenuation of a reasonable length on several HF frequencies, we could know loss. That would take minimal work and equipment, but a good method. The problem probably is there are so many types it might change between types. I just wonder why no one has ever measured anything. ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
Re: Topband: WD1A
On 7/23/2012 6:43 AM, Tom W8JI wrote: Surely someone somewhere has made some reasonable attempt at characterizing the line. If I had a sample (which I don't), I would hook it up to a VNA and measure both Zo and attenuation. 73, Jim K9YC ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
Re: Topband: WD1A
Mike, the measurements I took here on a short (300ft) WD-1A with average height of 5ft using the method W8JI recommends with a termination resistor (pot) and MFJ-259 showed an impedance of 140 ohms on both 160 and 80 meters. I did not attempt to measure at higher freq's...de gary, kd9sv -Original Message- From: topband-boun...@contesting.com [mailto:topband-boun...@contesting.com] On Behalf Of Mike Waters Sent: Monday, July 23, 2012 10:13 AM To: topband Subject: Re: Topband: WD1A I think the characteristics of so-called WD-1 surplus phone line varies. FWIW, the two short samples of WD-1 that I have here are as follows: 115 ohms impedance, calculated from the following: .033 diameter (averaged), .0685 spacing. The dielectric constant of the insulation (polyethylene) is 2.2. I just made three transformers for someone using that line as a bi-directional Beverage, but I think more tests need to be run to see how it really works in actual practice. But so far, so good. :-) 73, Mike www.w0btu.com On Mon, Jul 23, 2012 at 8:43 AM, Tom W8JI w...@w8ji.com wrote: Has anyone ever made any attempt to characterize the line at HF? ___ UR RST IS ... ... ..9 QSB QSB - hw? BK ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
Re: Topband: WD1A
That's what I would like to hear. Back some years got ahold of a sample of some alleged high power 72 ohm transmission line before I bought a bunch of it. It was 80 ohms and had terrible losses. It seemed to me to be made of the same stuff as household zip cord. I reported my findings back to the owner, who then sold it for scrap. Does anyone have anything authoritative clearing C line for use at RF? It was NOT designed and manufactured for use at RF, that is for sure. 73, Guy. If I had a sample (which I don't), I would hook it up to a VNA and measure both Zo and attenuation. 73, Jim K9YC ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
Re: Topband: WD1A
Gary, was your 140 ohm WD-1A made from .0393 (1mm) diameter wires, spaced .118 center-to-center? My math says that should be a little over 140 ohms. But the stuff I was talking about was a different diameter and spacing (.033 diameter and .0685 center-to-center spacing.) The same math says it's ~115 ohms, but I had no way of measuring a piece less than a foot long. 73, Mike www.w0btu.com On Mon, Jul 23, 2012 at 1:49 PM, kd9sv kd...@comcast.net wrote: Mike, the measurements I took here on a short (300ft) WD-1A with average height of 5ft using the method W8JI recommends with a termination resistor (pot) and MFJ-259 showed an impedance of 140 ohms on both 160 and 80 meters. I did not attempt to measure at higher freq's...de gary, kd9sv ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
Re: Topband: WD1A
Gary, was your 140 ohm WD-1A made from .0393 (1mm) diameter wires, spaced .118 center-to-center? My math says that should be a little over 140 ohms. But the stuff I was talking about was a different diameter and spacing (.033 diameter and .0685 center-to-center spacing.) The same math says it's ~115 ohms, but I had no way of measuring a piece less than a foot long. Since the field extends outside the dielectric, all bets are off. Even if the strongest area of electric field is between the conductors, we really don't know the percentages of what dielectric are involved. That's why a measurement is best. Tuning between a frequency where length is and odd 1/4 wave and even 1/4 wave electrical and adjusting for most constant SWR would hit pretty close. I think to make any meaningful tests, I'd use either 50 feet or 100 feet of line. Anyone with a movable power meter, antenna tuner, and transmitter, as well as an antenna analyzer, could probably measure loss and impedance as well as any VNA. 73 Tom ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
Topband: WD1A
I wonder if anyone knows how to reach W5UN? He made a post concerning his problems with WD1A breaking inside the insulation and was wanting to find out if he thought it was a corrosion or tension problem. I tried the email he used to make the post several times but no response. Has anyone else had problems with WD1A breaking? I plan to try a 2 wire bev using the WD1A but if is troublesome I may opt for something else. 73 Mike K4PI ___ UR RST IS ... ... ..9 QSB QSB - hw? BK
