Re: Topband: T Top Verticals and yagis

2020-02-28 Thread Jim Brown
kicking the 270 az wire to JA, and the 70 az wire to EU. For all of this to work, the antenna not being fed needed to be shorted, so I tweaked feedline lengths and added a stub to one antenna and shorting the others in the shack. 73, Jim K9YC _ Searchable Archives: http

Re: Topband: AA0RS result CQ160 SSB

2020-02-27 Thread Jim Kinney
I managed to work him barefoot from FL.  I guess living over saltwater helps. 73 Jim WE4S ⁣Get BlueMail for Android ​ On Feb 27, 2020, 2:46 PM, at 2:46 PM, Ed Sawyer wrote: >AA0RS was a real alligator out this way. Myself and others calling and >not >able to hear. He eventually

Re: Topband: Wednesday 160m DX CW Activity Night

2020-02-27 Thread Jim Brown
the last month. One was in WPX RTTY. 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: AA0RS result CQ160 SSB

2020-02-27 Thread Jim Brown
r San Francisco, the only way I can work EU on 160 is FT8. That's changed over 10 years as a result of increased RX noise on both ends. Those CW QSOs I made soon after moving here in 2006 I can no longer make today. UR and UA are confirmed using FT8 this season, and even Zone 17 and Zone 20!

Re: Topband: Bev flex high noise troubleshooting

2020-02-23 Thread Jim Brown
the coax. Best practice is to have a serious common mode choke on both ends. http://k9yc.com/RXChokesTransformers.pdf 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: 160m activity and propagation

2020-02-23 Thread Jim Brown
decade, with SMPS, variable speed motor controllers, solar systems, and the bean counters at power utilities that down-prioritize the maintenance of their distribution lines. 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: 160m activity and propagation

2020-02-21 Thread Jim Brown
. 73, Jim K9YC Near San Francisco On 2/21/2020 11:17 AM, Wes wrote: I worked him at 0500Z Wes  N7WS On 2/21/2020 11:50 AM, W7RH wrote: Yesterday I worked EA7X two hours after sunset and then the band closed. _ Searchable Archives: http://www.contesting.com/_topband - Topband

Re: Topband: New RFI Source

2020-02-20 Thread Jim Brown
source for a short time as it discharges? 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Topband: Dacron & varmits

2020-02-18 Thread Jim Thomson
a lot cheaper too! Also available in 25 ft increments up to aprx 1400 ft. Jim VE7RF _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: T-loaded vertical

2020-02-18 Thread Jim Brown
Yet another example of Frank coming up with excellent advice about things we hadn't thought of. At least I hadn't. Thanks Frank. 73, Jim K9YC On 2/18/2020 10:00 AM, donov...@starpower.net wrote: If the flat top of the T-vertical is near resonance on any HF band is will significant

Re: Topband: T-loaded vertical

2020-02-18 Thread Jim Brown
On 2/18/2020 8:45 AM, N4ZR wrote: My question is how to calculate the appropriate length for the two top-loading wires. An NEC model. It's a pretty simple one, and can be done in the free version that comes with the ARRL Antenna Book. 73, Jim K9YC _ Searchable Archives:

Re: Topband: RG-179 Coax

2020-02-14 Thread Jim Brown
alyzer in the shack and exported to SimSmith, where the electrical length of the feedline is subtracted from the measured data. The feedline length is obtained by a TDR. Similarly, feedpoint Z of vertical antennas will be affected by the radial/counterpoise system, ground losses, and

Re: Topband: RG-179 Coax

2020-02-14 Thread Jim Brown
ts, the coax must be connected at precisely the same point as where the calibration was done. Before attempting this, study parts of the manual for the equipment that talks about the "measurement plane." 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: RG-179 Coax

2020-02-14 Thread Jim Brown
73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: RG-179 Coax

2020-02-14 Thread Jim Brown
On 2/13/2020 11:40 PM, W0MU Mike Fatchett wrote: I am making some receive antennas and the coax will be for the choke that goes through a torriod. As Mike understands, RG6 doesn't work. See pages 3 of http://k9yc.com/2018Cookbook.pdf 73, Jim K9YC _ Searchable Archives:

Re: Topband: CQ WW 160 CW - SK..

2020-02-12 Thread Jim Brown
or contests. As far as I know, Tree is the only one of those people active on this reflector, and he does log checking for many major contests. 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: CQ WW 160 CW - SK.. ?

2020-02-11 Thread Jim Brown
. Try to be positive. YES! 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: . Re: PTFE wire supplier

2020-02-07 Thread Jim Brown
On 2/7/2020 3:42 PM, David Olean wrote: I sure miss those days! We lost an important surplus house here in Si Valley last year. On our last visit (their last days) we scored a long remainder of #12 stranded silver coated copper PTFE. Those in Chicago disappeared in the '70s. 73, Jim

Re: Topband: TT8SN QRV CW

2020-02-05 Thread Jim Brown
Thanks Frank. Perhaps some of us might offer to help him with RX? Anything from advice to shipping him "stuff"that could reduce his noise and help him with an RX antenna. 73, Jim K9YC On 2/5/2020 10:06 PM, donov...@starpower.net wrote: Hi Jim, See www.qrz.com/db/TT8SN 73 F

Re: Topband: TT8SN QRV CW

2020-02-05 Thread Jim Brown
On 2/2/2020 5:02 AM, daraym...@iowatelecom.net wrote: TT8SN has been QRV on 160 all week long but on FT-8. Very few spots for him aggregated by DXWatch show him on 160 or 80 at times when there's a path to NA. I need TT on both bands. Do we know his power and antenna(s)? 73, Jim

Re: Topband: CQ WW Contest

2020-01-29 Thread Jim Brown
's in the K3. 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: 4SQ Arrays in proximity

2020-01-28 Thread Jim Brown
the 80 m array was open circuited (shorting relays engaged). Both observations make sense -- the most sensitive characteristic of arrays like this is what happens in the nulls, which depend on very precise cancellation of signals that are equal and 180 degrees out of phase. 73, Jim K9YC

Re: Topband: 4SQ Arrays in proximity

2020-01-28 Thread Jim Brown
ns hard line like LDF4 or LDF5 (VF ~0.88) and cables made for the CATV world, where distribution runs at 75 ohms. All of the Teflon coax cables in that family have VF ~ 0.7 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Recording Off the Air

2020-01-25 Thread Jim Brown
On 1/25/2020 7:21 AM, W7RH wrote: 16Gb memory card using 64kbs bitrate. And 12kBps is plenty good enough contest audio. That's what I use for SSB messages. 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Nasty QRM From ??

2020-01-24 Thread Jim Brown
-- take a look at the app notes on my website about finding and killing RX noise. It's likely that serious ferrite chokes wound on both power leads and any other wires coming out of the units would knock that noise down a lot. 73, Jim K9YC _ Searchable Archives:

Re: Topband: Nasty QRM From ??

2020-01-24 Thread Jim Brown
splicing the Linear supply to the cable going to the garage door openers. Details on my website, in the app note about building contest scores by killing receive noise. 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Nasty QRM From ??

2020-01-24 Thread Jim Brown
dvice on identifying the type of source, and for chasing and killing it. On my website is a piece that ran in two parts in NCJ several years ago, as well as slides for talks that I've done at ham conventions and clubs. k9yc.com/publish.htm 73, Jim K9YC _ Searchable Arch

Re: Topband: Any Linrad selective limiter noise blanker experts here?

2020-01-21 Thread Jim Brown
inverse function from a 50 or 60 Hz line clock. Unfortunately, that's too simple. For effective cancellation, that inverse function must be precisely in phase (degrees, not polarity) and equal in amplitude at each harmonic frequency. 73, Jim K9YC _ Searchable Archives:

Topband: Topband resource

2020-01-15 Thread Jim Thomson
Date: Wed, 15 Jan 2020 15:58:57 + (UTC) From: Roger Parsons To: topband@contesting.com Subject: Re: Topband: Topband resource http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Topband resource

2020-01-15 Thread Jim Brown
On 1/15/2020 1:25 PM, Roger Parsons via Topband wrote: Your point is unclear to me. Did you study the slides? 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Topband resource

2020-01-15 Thread Jim Brown
On 1/15/2020 11:13 AM, Lee STRAHAN wrote: And from the Northwest I have a slightly different observation of horizontal/vertical questions. Your analysis makes lots of sense, Lee. It's consistent with what I've read from trustworthy sources about propagation. 73

Re: Topband: Topband resource

2020-01-15 Thread Jim Brown
f how horizontally and vertically polarized waves propagate, and how they are affected by nearby earth. Vertically polarized waves encounter a very strong loss component from poor soil conductivity, while horizontally polarized waves are almost unaffected. 73, Jim K9YC _ Searchable Arc

Re: Topband: Topband resource

2020-01-15 Thread Jim Brown
have a dozen or so countries in the log from the solar minimum of those earlier years. 73, Jim K9YC On 1/15/2020 6:21 AM, Wes wrote: Roger is in my logbook, along with at least five other "G" stations.  My station is described on my QRZ page.  I receive on the TX antenna. Wes  N7WS

Re: Topband: Topband resource

2020-01-14 Thread Jim Brown
On 1/14/2020 4:30 PM, Roger Kennedy wrote: And I get good reports all over the world, not just right across America. I've HEARD two UK CW stations on 160M in the past six seasons, and worked one of them. You were not either of those stations. Jim K9YC Santa Cru

Re: Topband: Topband resource

2020-01-14 Thread Jim Brown
t striking difference was in the 2-3 hours of daylight between 2 pm and 5 pm local, which is when 160 contests start on the west coast. Running legal limit with the vertical, I could regularly work 800 miles or so, usually one call. With the dipole, never even a QRZ? 73, Jim K9YC _

Re: Topband: Topband resource

2020-01-14 Thread Jim Brown
below 40 degrees! See slide 19 and following in http://k9yc.com/VertOrHorizontal-Slides.pdf 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Topband: FT-8 Contest would be great for Topband

2020-01-10 Thread Jim Thomson
Date: Fri, 10 Jan 2020 14:38:03 -0400 From: Herbert Schoenbohm To: TopBand List , topband-ow...@contesting.com Subject: Topband: FT-8 Contest would be great for Topband http://www.contesting.com/_topband - Topband Reflector

Topband: Coil 3.77 software

2019-12-21 Thread Jim Thomson
Coil 3.77 is now available replaces coil 3.72 http://ham-radio.com/k6sti/coil.zip Jim VE7RF _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Topband: Measuring Common Mode Chokes

2019-12-19 Thread Jim Thomson
Date: Wed, 18 Dec 2019 23:46:56 + From: Chuck Hutton To: "topband@contesting.com" Subject: Topband: Measuring Common Mode Chokes https://www.mfjenterprises.com/Product.php?productid=MFJ-854 Switchable In 5 ranges. Jim VE7RF _ Searchable Arch

Topband: 160m Activity Night

2019-12-12 Thread Jim Garland
seems to hear better than I do. Pretty humbling, actually! I was listening on a 720 ft beverage and transmitting on a 70ft base-loaded vertical with sixty 120 ft radials. Radio was a Flex 6500 and hb amp. Band was nice and quiet for a change. 73, Jim w8zr > -Original Message- >

Topband: spark gap construction ideas for 160m tower

2019-10-07 Thread Jim Thomson
Date: Sun, 6 Oct 2019 19:08:17 -0500 From: Rob Atkinson To: topband@contesting.com Subject: Re: Topband: spark gap construction ideas for 160m tower https://www.radioworld.com/tech-and-gear/understanding-arc-gaps-for-am-systems https://www.thebdr.net/articles/steel/twrs/LimitingStatic.pdf https:/

Re: Topband: Beverage coax

2019-09-19 Thread Jim Fielder
enough that they left it alone. It is quality product if you can protect it or don’t have the issues with Coyotes like I have. Jim, KE0L > On Sep 19, 2019, at 2:43 PM, Steven R Daniel, D.D.S. wrote: > > Good day all. I have used the DX Engineering F6. Available in bulk (can't >

Topband: Vacuum relay connections?

2019-09-07 Thread Jim Miller
I notice the contact connections are large hollow tubes. I’ve been soldering to these but wonder if that’s the right thing to do? Are there some sort of plugs there are more appropriate? Thanks Jim ab3cv _ Searchable Archives: http://www.contesting.com/_topband - Topband

Re: Topband: Unsubscribe

2019-07-16 Thread Jim McDonald
Me too, but I think I'll set my reflector options to web only, meaning no emails.  That way I can look at the messages sorted by topic on the website. Jim N7US Sent from Outlook on my Samsung Galaxy Tab S3 From: Ralph Bellas Sent: Tuesday, July 16, 9:00 PM Subject: Re: To

Re: Topband: No activity

2019-05-18 Thread Jim Monahan
73 and DX, Jim, K1PX K1PX at msn.com _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Voltage at top of vertical and scaling?

2019-04-16 Thread Jim Miller
Thanks all for your help on this. It sounds like my 15Kv relay at 53ft on the 68ft vertical is safe. It's never hot switched and provides connection to a 160 "tail" to give me my inverted L there. Best I can do on my limited size, no tree property. 73 jim ab3cv On Tue, Apr 16,

Topband: Voltage at top of vertical and scaling?

2019-04-16 Thread Jim Miller
inear since starting at the bottom on 36 ohms (sorta) and going to "infinity" at the top would preclude that. Thanks jim ab3cv _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Topband: 3Y0I Postponed

2019-03-27 Thread Jim Monahan
MV Atlantic Tuna. The seas calmed down enough to let them do a proper technical inspection of damages caused by the severe cyclonic storm last night. Here are more details on the latest dramatic events. https://bouvetoya.org/3yoi-postponed/ Jim, K1PX k...@msn.com _ Searchable

Topband: 3Y0I Prop forecast

2019-03-25 Thread Jim Monahan
K6TU has recently added the Bouvet DXpedition to his DX prediction list: https://www.k6tu.net/?q=node/add/dx-prediction-3y0i Jim, K1PX K1PX at msn.com _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Updated K9YC common-mode choke PDF now available

2019-02-03 Thread Jim Garland
h are vastly superior to RG58 and its variants in almost any application. 73. Jim W8ZR From: Guy Olinger K2AV [mailto:k2av@gmail.com] Sent: Sunday, February 03, 2019 07:17 AM To: MU 4CX250B Cc: Jim Brown; Mike Waters; topband@contesting.com Subject: Re: Topband: Updated K9YC common-mode

Re: Topband: CQ 160

2019-01-30 Thread Jim Thomson
Date: Tue, 29 Jan 2019 21:12:43 -0400 From: "Mike Smith VE9AA" To: Subject: Re: Topband: CQ 160 http://www.contesting.com/_topband - Topband Reflector

Topband: CQ 160

2019-01-29 Thread Jim - WS6X
un of 23. With that background, please forgive me if I mistakenly thought that working 58 EU in one weekend meant that propagation was terrific! As for me and my meager station in FM08, you will have a difficult time proving otherwise! 73 es gud DX, Jim - WS6X P.S. You have my permission to assume s

Topband: CQ160 Conditions

2019-01-28 Thread Jim - WS6X
EU sounded like locals. EQUIPMENT: K3S in full diversity; AMP: ACOM 1500; TX ANTENNA: Inv-L, 62 feet vertical, 40 radials; RX ANTENNA: (rarely used the entire weekend) 2-el Hi-Z, Pixel Loop See my results on 3830. Thanks for all the Qs. Jim - WS6X _ Searchable Archives: http

Re: Topband: Condx for Stew Perry!

2018-12-31 Thread Jim Clymer
until November of this year to beat that record, when I worked 19 EU the first evening of CQWW CW. So the 33 EU in one evening this weekend is pretty amazing for my little peanut whistle Inv-L!! 73, Jim - WS6X On Mon, Dec 31, 2018, 2:19 PM Chortek, Robert L. < robert.chor...@berliner.com wrote: >

Topband: Condx for Stew Perry!

2018-12-31 Thread Jim - WS6X
even get a "WS" out the door! Once again, the SP proves to be a great contest. Thanks for all the Qs, and a special thanks to all whose patience allowed me to ride out the static crashes to get you in the log. 73 es HNY! Jim - WS6X _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Rather use N-type (was Re: The answer to PL-259

2018-12-09 Thread Jim Thomson
Date: Sat, 8 Dec 2018 18:43:36 -0500 From: To: Cc: Subject: Re: Topband: Rather use N-type (was Re: The answer to PL-259 http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Rather use N-type (was Re: The answer to PL-259

2018-12-09 Thread Jim Thomson
Date: Sat, 8 Dec 2018 11:57:07 -0800 From: "Richard (Rick) Karlquist" To: terry burge , j...@johnjeanantiqueradio.com, topband@contesting.com http://www.contesting.com/_topband - Topband Reflector

Topband: Rather use N-type (was Re: The answer to PL-259

2018-12-08 Thread Jim Thomson
Date: Fri, 7 Dec 2018 15:05:28 -0500 (EST) From: donov...@starpower.net To: topband@contesting.com Subject: Re: Topband: Rather use N-type (was Re: The answer to PL-259 soldering/reliability problems) http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Rather use N-type (was Re: The answer to PL-259 soldering/reliability problems)

2018-12-06 Thread Jim Garland
liability. If you've not read the instructions you may be in for a surprise. 73, Jim W8ZR > -Original Message- > From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of N2TK, Tony > Sent: Thursday, December 06, 2018 08:31 AM > To: 'GEORGE WALLNER'; topb

Topband: Observations on a base-loaded 70 ft vertical

2018-12-02 Thread Jim Garland
previous iteration of this antenna used top-loading in a guyed vertical, and while the BW was a bit larger (and the maintenance was hugely larger!) I've not noticed any qualitative performance difference. Both versions seemed very competitive. 73, Jim W8ZR _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Detuning TX ant + QSK

2018-11-28 Thread Jim Thomson
version of the GH-1. Jim VE7RF -Original Message- From: Richard (Rick) Karlquist Sent: Wednesday, November 28, 2018 7:02 AM To: jkaufm...@alum.mit.edu ; 'Jim Thomson' ; 'TopBand List' Subject: Re: Topband: Detuning TX ant + QSK On 11/28/2018 5:18 AM, John Kaufmann

Topband: Detuning TX ant + QSK

2018-11-28 Thread Jim Thomson
For you folks that have to de-tune your TX ant, so your dedicated RX ant works correctly, if you also operate qsk, how do you do it ? Are you using a sped up vac relay to de-tune the TX ant ? I don’t see any other way to accomplish that task. Or do you use vox cw ? Jim VE7RF

Topband: ARRL DXCC - 160 Meters

2018-11-21 Thread Jim Thomson
Date: Wed, 21 Nov 2018 09:32:20 -0600 From: "Mike Cizek W0VTT" To: "'Jean-Paul Albert'" , Subject: Re: Topband: ARRL DXCC - 160 Meters <9. Station Location and Boundary: http://www.contesting.com/_topband - Topband Reflector

Topband: Condx on 160

2018-11-14 Thread Jim - WS6X
easy to work, but Eastern EU was missing. Zero days of wide open to EU condx. Keeping my fingers crossed... Jim, WS6X _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Topband: ICE 402X BCB Filter

2018-10-31 Thread Jim - WS6X
Anyone on this list interested in an ICE 402X BCB filter? Please contact me off list. Thanks - Jim, WS6X _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Historical note: Radial Depth

2018-10-13 Thread Jim - WS6X
Radio Lumiere in Haiti lays the radials in 2' deep trenches to foil the copper thieves. Jim - WS6X _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: alternative to shunt fed tower

2018-09-17 Thread Jim Thomson
Date: Sun, 16 Sep 2018 17:03:03 + (UTC) From: N7DF To: TopBand List Subject: Topband: alternative to shunt fed tower http://www.contesting.com/_topband

Re: Topband: Radial wire

2018-09-11 Thread Jim Thomson
Date: Wed, 5 Sep 2018 15:27:35 -0500 From: Rob Atkinson To: topband@contesting.com Subject: Re: Topband: Radial wire http://www.contesting.com/_topband

Re: Topband: RE topband Leaving

2018-09-05 Thread Jim Thomson
Date: Wed, 5 Sep 2018 06:13:21 -0400 From: Mark K3MSB To: Mike Waters Cc: ad4hk2...@yahoo.com, topband , Tree Subject: Re: Topband: RE topband Leaving http://www.contesting.com/_topband

Re: Topband: Air wound coil

2018-09-02 Thread Jim Garland
stions? Thanks! 73, Jim W8ZR _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Air Wound Coil

2018-08-31 Thread Jim Thomson
-Original Message- From: Richard (Rick) Karlquist Sent: Friday, August 31, 2018 7:13 AM To: Jim Thomson ; Guy Olinger K2AV Cc: TopBand List Subject: Re: Topband: Air Wound Coil ## What are you using to measure Q ?? I did discover one anomoly with coils and Q. XL increases

Re: Topband: Air Wound Coil

2018-08-31 Thread Jim Thomson
-Original Message- From: Richard (Rick) Karlquist Sent: Thursday, August 30, 2018 5:44 PM To: Guy Olinger K2AV ; Jim Thomson Cc: TopBand List Subject: Re: Topband: Air Wound Coil On 8/30/2018 3:44 PM, Guy Olinger K2AV wrote: You can also get the edge-wound (flat) 1/4 inch by 1/16

Topband: Air Wound Coil

2018-08-30 Thread Jim Thomson
y wind it on. Coil was oriented vertically..and placed right across the feed point. Then the vert is also DC grounded. Jim VE7RF _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: OT - US Hams, WWV closure

2018-08-25 Thread Jim Thomson
Date: Tue, 21 Aug 2018 22:49:49 -0400 From: "Paul Christensen" To: Subject: Re: Topband: OT - US Hams, WWV closure http://www.contesting.com/_topband

Topband: Tour of WWV 2017

2018-08-24 Thread Jim Monahan
For those of you who might have an interest, this is a 23:07 minute tour of the facility: https://www.youtube.com/watch?v=XJewUiP0Ueo Jim, K1PX K1PX at msn.com _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: OT - US Hams, WWV closure

2018-08-22 Thread Jim Thomson
st savings they are talking about amounts to very little. It would cost a helluva lot more to dismantle them completely. Besides TIME and freq standards, WWV provides for a myriad of other features. Jim VE7RF David, Like you I support the petition. However, I will lend my

Topband: KH1/KH7Z TopBand Ops Brief

2018-07-13 Thread Jim Thomson
Date: Thu, 12 Jul 2018 22:19:07 -0400 From: GEORGE WALLNER To: , ha...@tomisat.com Subject: Topband: KH1/KH7Z TopBand Ops Brief http://www.contesting.com/_topband

Topband: KH1/KH7Z TopBand Ops Brief

2018-07-13 Thread Jim Thomson
ion for RX only is a big no-no !That makes no sense what so ever. ## There is no way to enforce not using a remote RX, so the rule is further pointless. ## If a remote TX + RX setup is ...ok. Then so is a remote RX. Somebody needs to ..get with the program, and make

Topband: Baker Island DXpedition on 160

2018-06-15 Thread Jim Thomson
y 6 >(note that dates are tentative and may change -- please visit >http://baker2018.net/ for updates).GL and CU, >George, >AA7JV ## How come no FT8 mode on 160 M ? U list FT8 on all other bands, from 80-6m. Jim VE7RF _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: 4-square antenna spacing

2018-06-14 Thread Jim & Nan Denneny
Manual says min spacing for 160M is 54ft and optimal spacing is 135ft. 135ft is a non-starter for my lot. Can anyone comment on performance degradation between these two extremes? Minimal? Substantial? Sensitivity? f/b? I cannot find experimental data. Jim K7EG Sent from Mail for Windows

Topband: cutting coax stubs for 80 meter 4-square

2018-06-11 Thread Jim Thomson
Date: Mon, 11 Jun 2018 07:29:39 -0700 From: "Richard (Rick) Karlquist" To: terry burge , topband@contesting.com Subject: Re: Topband: cutting coax stubs for 80 meter 4-square On 6/10/2018 8:01 PM, terry burge wrote: > All's well that ends well I'm happy to report. K2AV, Guy suggested I check > t

Topband: cutting coax stubs for 80 meter 4-square

2018-06-10 Thread Jim Thomson
Date: Sun, 10 Jun 2018 22:28:11 +0800 From: Jeff Blaine To: topband@contesting.com Subject: Re: Topband: cutting coax stubs for 80 meter 4-square http://www.contesting.com/_topband

Topband: 80/160?

2018-04-18 Thread Jim Miller
Rather than use a trap at the top of an 80m vertical to transition to a 160 inverted L has anyone tried a vacuum relay or even two in series at 1500w to handle the highvoltage when on 80m? Tnx Jim AB3CV _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Straws in the Wind ....A 160m Dx'ing Sea Change is Upon us!

2018-04-02 Thread Jim Brown
FYI, This was posted yesterday by K1JT to the WSJT email reflector. 73, Jim K9YC Everyone paying attention should already know what's contained in this message -- but it's clear that some do not. The current General Availability (GA) release of WSJT-X is v1.8.0.  That program ve

Re: Topband: My first VK on 160M!

2018-04-01 Thread Jim - WS6X
arated by ~17 degrees latitude. Is that a contributing factor? Why would this effect at a specific location (like G3YRO's) seem to change over the years? Thanks, and again, congrats Mark! Jim - WS6X _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: 160m polarization and elevation angles

2018-04-01 Thread Jim Thomson
ft long drive shaft, fixed at the bottom end, and free to twist at the top end. It wound up like a pretzel. Jim VE7RF _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: 160m polarization and elevation angles

2018-03-31 Thread Jim Thomson
Date: Sat, 31 Mar 2018 23:15:00 +0800 From: "Steve Ireland" To: Subject: Re: Topband: 160m polarisation and elevation angles http://www.contesting.com/_topband

Re: Topband: 160M Balun

2018-03-30 Thread Jim Thomson
## Much higher Zand much higher RSand minimal Xs. Plan B would be to use RG-400... but more than 7 turns. ## N3RR has his 160m CM chokes between 16k and 22k ohms. If you are going to build a 160M CM choke, you may as well do it right the 1st time. Jim VE7RF -Original

Re: Topband: Straws in the Wind ....A 160m Dx'ing Sea Change is Upon us!

2018-03-30 Thread Jim N7US
be I'm a "grumpy old man" but I don't think I'll mind eventually downsizing with a simpler station because the hobby will have changed. I'd even be OK with RHR from "the home" but I wouldn't use it for competition. Contesting, including CWop

Topband: 160M Balun

2018-03-30 Thread Jim Thomson
Date: Fri, 30 Mar 2018 07:22:18 -0400 From: "N2TK, Tony" To: Subject: Topband: 160M Balun http://www.contesting.com/_topband

Re: Topband: Speaking of Noises...

2018-02-22 Thread Jim Clymer
arded. Perhaps if I slowed the playback to about 1/4 speed it would be closer. Still am hearing only 4 pulses. Next step is to listen with a wide bandwidth. Thanks all. Jim - WS6X _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Speaking of Noises...

2018-02-22 Thread Jim - WS6X
but the strongest signals. I will have to pay more attention to details and record when I hear it. I wish I was better at phonics, but what I hear has distinct articulation: "Gugghk gugghk gugghk gugghk". 😊 Jim, WS6X 1. Speaking of noises... (Bill Tippett) Message: 1 Date: Wed, 21

Topband: FCC authorizes 1KW wireless power transmission

2018-02-13 Thread Jim Thomson
business any time soon. The same outfit has been applying for these experimental licences for years now. Jim VE7RF Date: Tue, 6 Feb 2018 14:16:15 -0500 (EST) > From: donov...@starpower.net > To: topband > Subject: Topband: FCC authorizes 1KW wireless power transmission > experime

Topband: FCC authorizes 1KW wireless power transmission

2018-02-12 Thread Jim Thomson
d in microvolts, not megawatts. ## well, you could buy shares in the company, let them peak with all the hype, then dump all of em real quick.The entire scheme is about 3 steps below fractal ants. Jim VE7RF _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: Kostas' point

2018-01-18 Thread Jim Thomson
Date: Wed, 17 Jan 2018 15:07:04 -0500 From: To: "John Randall" , Cc: "MEZEY JIM" , "w1zc" , "W2WGK" Subject: Re: Topband: Kostas' point http://www.contesting.com/_topband

Re: Topband: VU2GSM webSDR use: A Clarification

2018-01-16 Thread Jim Thomson
Date: Tue, 16 Jan 2018 08:17:41 -0500 From: "Joe Giacobello, K2XX" To: a Topband COL Cc: VE6WZ_Steve , Ron Spencer , k...@dxer.com Subject: Topband: Fwd: Re: VU2GSM webSDR use: A Clarification http://www.contesting.com/_topband

Topband: sdrWEB not going in my log

2018-01-16 Thread Jim Thomson
Date: Tue, 16 Jan 2018 22:41:05 +0800 From: Jeff Blaine To: topband@contesting.com Subject: Re: Topband: sdrWEB not going in my log http://www.contesting.com/_topband

Topband: VU2GSM webSDR use

2018-01-14 Thread Jim Thomson
Date: Sun, 14 Jan 2018 15:48:04 + From: Paul Mclaren To: topband@contesting.com Subject: Re: Topband: VU2GSM webSDR use http://www.contesting.com/_topband

Topband: Please unsubscribe

2018-01-13 Thread Jim Murray via Topband
_ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Supporting Ladder line

2018-01-06 Thread Jim Garland
three years, it has worked perfectly, with no problems at all. I'm not disparaging ladder line (or the plastic clamps) at all. The commercial stuff just isn't designed for long horizontal lengths. 73, Jim W8ZR > -Original Message- > From: Topband [mailto:topband-boun

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