Re: Topband: Source for durable ladder line?

Probably the most durable two conductor is Military WD-1A telephone cable. available on eBay for $50 for about a half-mile. Special lower impedance transformers are required to match the line's impedance. It is also a great source for very durable single wire Beverages with both ends connected

Re: Topband: FT-8 Contest would be great for Topband

I just joined Mike. Thanks Herb, KV4FZ On Fri, Jan 10, 2020 at 8:21 PM Mike Waters wrote: > The brand new https://groups.io/g/160Digital group should be good for > that, Herb. Have you joined yet? > > 73, Mike > W0BTU > > On Fri, Jan 10, 2020, 6:04 PM Herbert Schoenboh

Re: Topband: FT-8 Contest would be great for Topband

it! Herb, KV4FZ On Fri, Jan 10, 2020 at 3:34 PM Mike Waters wrote: > Why not? I think that an FT8 contest would be a good experiment, at least. > > It needs a sponsor(s) and some tentative rules. Any suggestions? > > 73, Mike > W0BTU > > On Fri, Jan 10, 2020, 12:

Topband: FT-8 Contest would be great for Topband

I know the purists will flame me for this but look at the frequency conservation this would present and look at the activity statistics for only the past couple of hours, AIf the contest was designed well sub-channels could be recommended for the various continents as Stew Perry use to urge for

Re: Topband: 160m vertical saltwater grounding

A very effective device called *Dynaplate* works very well as a saltwater grounding system for boats or limited areas to run full-sized radials. You can get one for $100 from the link below. https://www.jamestowndistributors.com/userportal/show_product.do?pid=13331 Herb, KV4FZ On Wed, Jan 8,

Re: Topband: KV4FZ FT8

Mike, That's amazing! Herb, KV4FZ On Wed, Jan 1, 2020 at 6:27 PM W0MU Mike Fatchett wrote: > Decoded at 2216z 3:16pm Local time here in Colorado. Crazy! > > W0MU > _ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > _

Re: Topband: Shunt feed question

Best to use a 3 or 4 wire cage feed and you will find the match easier. You should tap the tower at 50 feet and work down till you find the sweet spot. A 500 to 750 vac variable will take care of any measure inductive component. Herb, KV4FZ On Tue, Oct 15, 2019 at 3:10 PM Marty Ray wrote: > I

Re: Topband: 160 meter QSL card checking

This is frustrating indeed as there are no DXCC card checkers in the USVI with 160-meter DXCC which the ARRL requires. They refuse to explain why. OK, so I will send the cards to them. But wait, this requires an online application. But when I fill it out and put in my zip code and location the

Re: Topband: Fwd: ARRL DXCC - 160 Meters OK1YQ (OK1RD) Legitimacy???!!!

sovo operations (not > espcially "hard" but "new") will never do LOTW either. > > Now, for rare DX home stations (not DXpeditions), this is much less > effective. Several of these guys really do depend on green stamps for > income it seems. > > Tim N3Q

Re: Topband: Fwd: ARRL DXCC - 160 Meters OK1YQ (OK1RD) Legitimacy???!!!

Would not a 100% LOTW be the ultimate answer to card frauds? There is, in fact, is no card checker in the VI for 160 meter QSO's causing me countless mailings to the DXCC desk. This all could be avoided in the future if the ARRL went to 100% LOTW. Most rare DX stations would want their

Re: Topband: #1 W1BB

Yes indeed about Stew Perry. The ARRL really fooled around with the 160-meter DXCC award. But even worse, when they issued me mine I realized I had the first ever 6-band DXCC. I asked the powers that be if the would issue me this. The answer was "no way." I said then "If a 5-band DXCC was such

Re: Topband: Topband Digest, Vol 197, Issue 25

The real question is not why W1BB is #1 or W8LRL is #2 but why there are two #3's and no #4. This goes right to the heart of how the ARRL has been wrongfully playing favorites. Herb, KV4FZ On Tue, May 28, 2019 at 3:14 PM Bob allphin wrote: > Who is # 36? >  > Bob > > Sent from my iPhone > > >

Re: Topband: AM interference on 1840

1844 would be a great solution for FT-8. Now we have to convince the WSJTX people to put 1844 in their dropdown menu we they do the next release. They have 1838 for JT-65 which few ever use today and that could be another option for FT-8. On Tue, May 21, 2019 at 10:50 AM cqtestk4xs--- via

Re: Topband: AM interference on 1840

; > < >> https://www.avast.com/sig-email?utm_medium=email_source=link_campaign=sig-email_content=webmail >> > >> > Libre >> > de virus. www.avast.com >> > < >> https://www.avast.com/sig-email?utm_medium=email_source=link_campaign=sig-ema

Re: Topband: AM interference on 1840

ign=sig-email_content=webmail > > > > Libre > > de virus. www.avast.com > > < > https://www.avast.com/sig-email?utm_medium=email_source=link_campaign=sig-email_content=webmail > > > > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > > > > El lun.,

Re: Topband: AM interference on 1840

/www.avast.com/sig-email?utm_medium=email_source=link_campaign=sig-email_content=webmail> > Libre > de virus. www.avast.com > <https://www.avast.com/sig-email?utm_medium=email_source=link_campaign=sig-email_content=webmail> > <#m_7495151846424393916_DAB4FAD8-2DD7-40BB-A1B8

Re: Topband: AM interference on 1840

Interference from them makes 1840 useless for me. Since they don't respond to my emails maybe WSJT-X could assign 1844 or 1848 to 160 in their next release. Herb Schoenbohm, KV4FZ On Mon, May 20, 2019 at 11:21 AM Jorge Diez - CX6VM wrote: > Hello > > do you notice a second harmonic on 1840?

Re: Topband: V84SAA QSL

I got mine via LOTW since I made a contribution. The 160 CW and the FT-8 confirmation were really appreciated. Herb, KV4FZ On Wed, Apr 17, 2019 at 1:34 PM wrote: > I received my QSL via LoTW weeks or months ago.73. . . Dave, W0FLS > > -Original Message- > From: Peter Bacon >

Re: Topband: XR0ZRC?

Ken, I will gladly attest to that as XR0ZR was work here from 160-6 all modes including RTTY with pipeline condition. I even work them on 6 meters 6 different times when we had time to chit chat and the mainland wasn't heard yet. ig difference. Herb, KV4FZ On Tue, Mar 26, 2019 at 12:37 PM

Re: Topband: XR0ZRC?

David, You would need a Beverage for XR0WRC favoring the south to SSW from your location. Herb, KV4FZ On Tue, Mar 26, 2019 at 11:00 AM David Olean wrote: > I am a bit puzzled by XR0ZRC. I thought they were going to have a major > effort on 80 and 160, but so far I have heard from little to

Re: Topband: Transmit antenna de-tuning relay.

My tower is a Rohn 45 90 footer and there must be some way of detuning it via the skirt adjustment means to make it non-resonant at 1825 kHz This is similar to electrical towers being detuned near a direction AM station so their pattern is FCC compliant. In some cases, the power companies used

Topband: Direction heading to Bouvet

>From my QTH I think the SP is about 160 degrees but I want to make sure. N1MM tells me it is 180 degrees but that is generally Antartica and Bouvet lies considerably East of that. Is there any way I can get a polyconic projection online? I want to lay out a 900-foot single wire Beverage that

Re: Topband: Transmit antenna de-tuning relay.

A nice Jennings 24V vacuum relay arrived in the mail today but I am not sure the best way to detune my cage fed tower on 160. Would shorting the cage to ground be the way? Herb, KV4FZ On Fri, Mar 22, 2019 at 3:59 PM FZ Bruce wrote: > RF parts was out of the VHC1 12V vacuum relays.. Tried the

Topband: 10 to 1 Ferrite Balun

I am working on an RX antenna that requires about balanced 800 match to 75 ohm RG-6. I have some type 43 and 73 ferrite binocular cores but since this is just an experimental RX antenna I wanted to use an easier approach. I have two commercial baluns that are unmarked but bridge out to a 75-ohm

Re: Topband: Inverted L loading wire dialmma

The "witches hat" as you call it makes an excellent top loading medium for Marconi antennas. I use them here on an AM tower with great success in improving the base impedance of a less than 1/4 tower. Care must be taken that these angled down wires are not to long. (I think 30% of the antena

Re: Topband: LACK OF ACTIVITY

KH7XS have you tried FT-8 on 160. Plenty of activity at your sunset and beyond. Herb, KV4FZ On Wed, Feb 13, 2019 at 6:02 PM cqtestk4xs--- via Topband < topband@contesting.com> wrote: > I also have found the lack of activity frustrating. I'll call CQ and RBN > says I'm hitting the mainland

Re: Topband: Topband Phenomenon

This could be explained by a power increase when the station's amp came on after warm up. However, a sudden 20 DB is a lot of increase to explain by any means. Maybe contacting the G station could help. Herb, KV4FZ On Sun, Feb 3, 2019 at 1:38 PM Dan Atchison via Topband <

Re: Topband: JA's came in droves today on 160

they are part of the > action, and some people don’t. Those of us that do seem to have a pretty > universal distaste for FT-8. > > > > 73 > > > > Ed N1UR > > > > *From:* jayb1...@optonline.net [mailto:jayb1...@optonline.net] > *Sent:* Thursday, Januar

Re: Topband: JA's came in droves today on 160

hen > ultimately – its computer to computer, the IP address should get the DXCC > award no? > > > > Ed N1UR > > > > *From:* Herbert Schoenbohm [mailto:herbert.schoenb...@gmail.com] > *Sent:* Thursday, January 31, 2019 2:02 PM > *To:* Edward Sawyer > *Cc:* Top

Re: Topband: JA's came in droves today on 160

Exactly Ed, Just as SSB did to AM and digital modes are doing to RTTY. Soon it may be computers working computers with minimal operator supervision. Right now on FT-8 when statins call my CQ they are answered and sent a signal report automatically and the logging is done with a single point and

Topband: JA's came in droves today on 160

This morning starting an hour before dawn 34 JA's were worked on FT-8 with a 1840/1908 split. The best path was straight west for me. I don't know how this path existed or what caused this to happen. The regular NW path was nothing but the W and SW paths were great. Maybe the massive Arctic air

Re: Topband: FT-8 gentleman's agreement for 160?

Peter, Not all countries allow FT-8 ops on 1840. JA's work split on 11908. Last night attempts to work a VU2 he was only able to legally TX around 1816 with my FT-8 being on 1844. The agreement came way before FT-8 or other digital modes. They also don't take in consideration for some

Topband: 30 Ja's worked today on 160

Using FT-8 with a split 1840/1908 I was able to work over 30 JA's via a skewed SW path today. Amazing conditions and less polar absorption this direction. Herb, KV4FZ _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Topband: Amazing Conditions

On FT-8 (1840) there has been some amazing propagation with several ZS stations worked one hour before sunset and JA's worked 45 minutes after local sunrise. Working JA's by calling " CQ JA KV4FZ FK77" and listening on 1908 for them requires that the rig control WSJT-X V2.0 has the rig control

Topband: Beverage feedline loop breaker

I am using a DXE RG6U coax interrupter about 35 feet from the Beverage feed point and it is working well. I have another Beverage without one. I would ask if I can fashion one out of two single wire K1FZ transformers back to back with a two-inch wire connection, terminal to terminal. I would, of

Re: Topband: ARRL 160 Contest

gt; If it were possible I would gladly trade places with you this weekend. > > Stan, ZF9CW > > > > > On Nov 28, 2018, at 2:41 PM, Herbert Schoenbohm < > herbert.schoenb...@gmail.com> wrote: > > > > I will try it out in the ARRL

Re: Topband: Polarization on 160m

the rules for the ARRL 160 > and saw where US possessions can work US VE and DX? > > 73, Mark K0KX > > - Original Message - > From: "Herbert Schoenbohm" > To: k...@optimum.net > Cc: "TopBand List" > Sent: Wednesday, November 28, 2018 1:41:08 PM >

Re: Topband: Polarization on 160m

So is the 70-year-old Collins 74A4 with its mechanic filters and single conversion method. Many times you could just roll the IX into a deep hole with the bandpass control and the signal would pop out of nowhere. Wish I still had mine to run comparisons. I have now a modern (expensive) Flex

Re: Topband: Detuning TX ant + QSK

I have an Ameritron QSK-1 never used and sitting on the shelf that has external outputs for relays. Works QSK with most any AMP $200 or best offer takes it. Herb Schoenbohm On Wed, Nov 28, 2018 at 6:27 AM Jim Thomson wrote: > For you folks that have to de-tune your TX ant, so your

Re: Topband: use of WD-1 Military field phone wire for bog and/or beverage

Terry, I have learned the hard way that WD-1A, in reverse Beverage two wire mode, is down many db's compared to the forward direction. The only way to make them work equally in both directions is to use double runs of WD-1 with 4 to 6-inch spreaders. For single wire Beverages, the WD-1A is very

Re: Topband: Gamma match success

Unless you use LMR 600 or Andrew heliax a cap made from standard RG-8 or 213 has its limitations. eBay has a ton of high current fixed caps very close to the value you need. Some are from Ukraine (Russian military surplus) and are very inexpensive. You might also consider a home-brewed sandwich

Re: Topband: Toploaded vertical - SWR

An L network with a coil in series and a 500pf variable to ground might do the trick. You impedance of the antenna is to low and you need to bring it up. You can also try extending the top hat wires by 20' each and see what difference that makes. Herb, KV4FZ On Tue, Sep 18, 2018 at 5:44 PM

Re: Topband: Call for antenna ideas

Mike, you suggested a delta loop. It is important that if Simon decides to hang a delta loop between towers that you feed it a the corner rather than at the bottom. This should give you some vertical component at a much lower take-off angle rather than being a clod warmer on 80 meters.

Re: Topband: [TowerTalk] Advise needed on phased beverages

! I will look into it! > > 73 > Tonnoi > > On 11 Sep 2018, at 17:06, Herbert Schoenbohm > wrote: > > Tonno, I would suggest getting a DX-Engineering NCC-1 or NCC-2 to do the > phasing for you in your ham shack. That way you will have phasing control > right at you

Re: Topband: [TowerTalk] Advise needed on phased beverages

Jim, yes, I suspected they might interact of course. But can I avoid it? > ungrounding both ends of the unused beverage would also not eliminate > coupling I am afraid? If the feedlines are a half wave or multiples of a half wave you should try terminating the unused shack end. This

Re: Topband: Radial Wire

Roger posted.":but I would emphasize that WD1A is horrible for bi-directional Beverages as the loss is excessive in the transmission line mode." Roger that is clearly the case as I have found here the hard way. I now use the WD1A for single wire Beverage antennas due to its low cost and

Re: Topband: Radial wire

Rob, Not barbed wire, but electric fence wire. This wire stays good for decades. Look at the horse and cattle farms around you. It has the same conductivity as your galvanized steel tower. Nor does anyone consider making a tower out of copper or copper clad steel.☺ A radial system of 60 1/4 wave

Re: Topband: Radial wire

1/4 mile for $30 is reasonable and would work well for radials. https://www.ebay.com/itm/Acorn-International-EFW1714-1-4-Mile-17-Gauge-Galvanized-Fence-Wire/152465194663?epid=4017419194=item237fa23ea7:g:xOMAAOSw4A5YwFca Herb, KV4FZ On Wed, Sep 5, 2018 at 2:00 PM Herbert Schoenbohm

Re: Topband: Radial wire

For a cheap solution for radials is to use buried galvanized barbed wire. It is available for pennies a foot. A preferred way of putting it in is to use a is a Ditch Witch with a vibrating plow attachment that allows the wire to buried with limited handling. Depending on the soil consistency it

Re: Topband: Shunt Fed Tower Question

Herbert Schoenbohm Thu, Aug 2, 10:04 AM (5 days ago) to TopBand I recently installed a 2 element 40-meter beam and a 4 element 20-meter beam on top of a 90-foot tower which I use for TX on Topband. The tower is cage fed with a 3-wire cage spaced24 inches around the tower, I am able to get 1.2

Topband: Shunt Fed Tower Question

I recently installed a 2 element 40-meter beam and a 4 element 20-meter beam on top of a 90-foot tower which I use for TX on Topband. The tower is cage fed with a 3-wire cage spaced24 inches around the tower, I am able to get 1.2 to 1 on 1845 by putting about 1200 pf and a 500 pf fixed HV cap to

Re: Topband: KH1 in texas on 160m

This is how KH1/KH7Z sounded on 160 in the Virgin Islands. They were much stronger than the W6's calling them. Antenna here is 600 foot Beverage at 270 degrees and IC-7300. Herb Schoenbohm, KV4FZ On Mon, Jul 23, 2018 at 4:49 PM, Dan Edward Dba East edwards < dan.n.edwa...@sbcglobal.net> wrote:

Topband: Beverage selector switch via IP

Looked all over for one of these so my Beverages could be selected remotely via an IP address. Is there such a device marketed anywhere? Herb, KV4FZ _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: PY1RO

Devasting news about Rolf Rasp PY1RO. I went to his home in Niteroi across the harbor from Rio de Janeiro in 1965 with a steamer trunk loaded with some Drake Twins to get on the air on top band. Before he was licensed. Rolf was an ardent SWL who had logged Stew Perry, W1BB many times. We used

Re: Topband: Wednesday 160m DX Activity Night

Roger, I heard you well on 1827 tonight but called for about 30 minutes and just gave up. Your signal in the QRN was 369 most of the time, High tropical QRN here. On Wed, Mar 28, 2018 at 5:27 PM, Roger Kennedy < ro...@wessexproductions.co.uk> wrote: > > Well, I'm not sure if it has been poor

Re: Topband: low inv-vee

Roger, near your dawn your signal is very good here over the years on 160. That is the time when low dipoles seem to really work well. Herb, KV4FZ On Wed, Mar 28, 2018 at 5:23 PM, Roger Kennedy < ro...@wessexproductions.co.uk> wrote: > > Well I've said it before and I'll doubtless say it again

Topband: 3C0W signal on Topband

I have no explanation for this but it is clearly the best signal every heard from this part of the world on 160 from 3C0W was so strong i had to record it. Jon, AA1K has put it up on his website http://www.aa1k.us/dx for you to hear it. RX antenna here was a 600 foot S/E Beverage although the

Re: Topband: Excessive noise on beverages

Wes, Only a guess.. If the feed line going to the inverted Vee was shorted at the shack end and the feedline was a halfwave long, that RF short would appear at or near the top of inverted Vee. Through mutual coupling from the tower to the inverted Vee could provide some additional top loading

Re: Topband: FW: Excessive noise on beverages

Great work Gary! This is probably a way that is much less expensive than the commercial version of doing this. https://www.lbagroup.com/products/detunipole-detuning-skirt-kit Herb, KV4FZ On Tue, Mar 6, 2018 at 2:28 PM, kd9sv wrote: > Herb, FYI...gary, kd9sv > >

Re: Topband: Excessive noise on beverages

Dave, You might be able to take the TX tower shunt wire to ground with a relay and change its resonant frequency. Another solution might be a cage wire feed which when taking directly to the ground might act as a decoupling sleeve. Broadcast engineer have experience in this since electrical

Re: Topband: Does flooding radial field help

The was certainly short skip within 300-400 miles and I work several Carribean station within that range. However, the unusual part of that was an Italian who kept calling CQ where is was calling CQ and was S9 on the EU Beverage. I never even got a QRZ from him. I had to null him out with the

Re: Topband: Does flooding radial field help

Jack, Last night in the CQ 160 SSB contest I called CQ for hours and only worked a few stations mostly within a few hundred miles. Eu's were coming in but none heard me. Also, I could not hold a frequency anywhere. I did work LU2DKT and a few PY's. It was brutal trying to work anyone with 100

Re: Topband: [TowerTalk] 160 vertical question (Top Hat)

Paul, By doing this you are actually tuning out the inductance caused by the longer than resonant wire by adding a series capacitance near the same value. Herb, KV4FZ On Sun, Feb 4, 2018 at 8:35 AM, Paul Christensen wrote: > >"Another technique that is often used for matching is

Topband: No power line noise in any direction.

After two Cat 5 Hurricanes, Irma and Maria, devastated the Vi I have been able to get back to listening on topband with a few new reversible DX-Engineering Beverage packages. The linemen from all over the country run by an operation out of Plainville, NY have been rebuilding the entire island's

Re: Topband: use the wasteland

Joe I agree. Most 160 antennas would require retuning as even the best shunt fed towers only gives a usable 50kHz, Running out to the tuning box everytime I want to use FT8 is not an option. However, retuning for an SSB contest or ragchewing is more plausible. Herb, KV4FZ On Wed, Nov 29, 2017

Re: Topband: Best Receive Antenna over Sloping Terrain?

have considered this, too. But I think I may run into the same problem with sloping terrain. Thoughts? On Sep 1, 2017, at 13:13, Herbert Schoenbohm <herbert.schoenb...@gmail.com <mailto:herbert.schoenb...@gmail.com>> wrote: Since your space is limited to preclude a bunch of Bever

Re: Topband: 160 meter 1/4 vertical

m] On Behalf Of Charles > Moizeau > Sent: Dienstag, 4. Juli 2017 00:10 > To: Herbert Schoenbohm; TopBand List > Subject: Re: Topband: 160 meter 1/4 vertical > > The free-space pattern of current in a vertical (and also horizontal) > antenna is crescent shaped with its maximum a

Re: Topband: 160 meter 1/4 vertical

Forget about the high impedance issues on 40 and also 80. IMHO the best and easiest solution for you is to make some simple wire decoupling sleeves or wire cage for the higher bands and they could be current fed like 160 meters and much less complicated to feed without extensive matching. Also

Re: Topband: RX antenna switching - unused ports

Brad, I have a 12x1 commercial Panasonic video switcher which is passive and terminates in 75 ohms all unused ports. I used 1/2 wave feed lines which conceivable repeats the 75 ohm termination at the Beverage matching transformer. I also use several 1:1 (DXE) isolation boxes about 30 feet

Topband: Feeding a two wire Beverage at the center

have heard that a 450 ohm ladder Beverage can be fed in the center or even off center. This is something I would like to do but have never seen any write up on the way it is done. I presume it would require a reflection transformer and ground on each end. But the means of feed the wires at the

Re: Topband: Bev-Flex 4 Beverage system

I have heard that a 450 ohm ladder Beverage can be fed in the center or even off center. This is something I would like to do but have never seen any write up on the way it is done. I presume ti would require a reflection transformer and ground on each end. But the means of feed the wires at

Re: Topband: Ladder line Beverage Installation

wood screws via the small slots in the posts Sent from my iPhone > On May 12, 2017, at 9:36 PM, FritzOAQ wrote: > > Mike, > > What do you connect to the PVC pipe to hold the wires? > > > > Herb, > > How do you connect the paint sticks to the posts? > > > > Fritz

Topband: ZK3 Tokelau Islands

Back in 2010 I worked ZK3Y on 160 meters but failed to request a QSL card. I do not find any reference to this station on QRZ.com but still would like to pursue getting close to 300 TB confirmed. Please send me an e mail if you have any information on ZK3YThanks, KV4FZ _

Re: Topband: BOG on sand

Probably it will work very good if you establish a ground on both ends with some spiders like radials. 3 or 4 about 60 feet long or longer should do it. Herb Schoenbohm, KV4FZ On 4/26/2017 1:44 PM, Art Heft wrote: Guys, speaking of 160 meter BOGs, would one work for me? In this part of

Re: Topband: Bev-Flex 4 Beverage system

I have heard that a 450 ohm ladder line reversible Beverage can be fed in the center or even off center without any negative effect. This is something I would like to do but have never seen any write up on the way it is done. I presume it would require a reflection transformer and ground on

Re: Topband: Ladder line Beverage Installation

Maybe since my Beverages have to be at least 8 feet high to avoid the deer horn (yes we have them in the field were my beverages run). Driving a 10 ' 2X2 into the ground requires me to carry along a step ladder. The way I described allow me to driving in the and 8 foot metal post, which has

Topband: Ladder line Beverage Installation

DXE sells some nifty ladder insulators designed for wooden posts. They are listed at $13.95 for a bag of 25. (DXE P/N DXE-LL-LNS) In my case I wanted to use metal fence supports with wood on the top for an easier installation with a 3 lb maul rather than digging holes for the post supports.

Re: Topband: Beverage in a slope

GabrielYou will be presently surprise how well that works. You might even get some enhance FB out of it. I had such a sloping Beverage almost exactly like described on EU running downhill and with a 100 foot drop from previous location here on St. Croix and it was superb. Herb, KV4FZ

Topband: Fwd: Re: Echo on 160m yesterday morning

Meant to say "all that improbable""But the idea of a multiple moderate angle skip with so many hops around the world and twice is IMHO really all that/*improbable*/." On 2/5/2017 3:33 PM, Herbert Schoenbohm wrote: Having worked LU and CX on 2 meters SSB (100

Re: Topband: Echo on 160m yesterday morning

Having worked LU and CX on 2 meters SSB (100 watts 7 element beam) without any ionospheric skip in the strange ducting FAI mode that is at time formed by the magnetic field at the equator, i say that anything is possible. But the idea of a multiple moderate angle skip with so many hops around

Re: Topband: Terminating resistor

let me check I may have some 600 ohm 100 watts in the storage shed. 12 were used in a AM station in parallel for a high power dummy load. Sent from my iPhone > On Jan 25, 2017, at 7:31 PM, "jcjacob...@q.com" wrote: > > How do, > > > Where can you obtain, at a reasonable

Topband: Beverage Feed-line Noise Pickup

On my Beverage feed-line RG6 runs (some 200 feet) I use multi-turns a large toroid on each feed-line and the attach each coax to a grounding block and good ground rods (typical Hume Depot RG-6 variety) then on the other side of the grounding block before the coax runs about 20 feet to the

Re: Topband: [TowerTalk] radial lengths ...

One nice trick I have used in the past to locate buried radials and check them for continuity is to walk around the radial field with a good professional FSM (field strength meter) tuned to station's transmitted signal (at reduced key down power preferably to protect the transmitter) and with

Topband: Solved: Strange resistance between Beverage ground rods

After more ground rods and buckets of water along with several spider wires I learned the hard way to *never8 try to make measurement with a DVM. A cheap VOM gave me the results I was looking for. Now I measure 45 ohms from the detached reversible Beverage wires out to the end and though the

Re: Topband: Strange resistance between Beverage ground rods

Thanks to all that have given tips on this. I was using a Fluke 77 in the low resistance automatic range and as Lee K7TJR pointed out even a small induced voltage was enough to drive the resistance reading up to 20K Ohms. I made additional measurements with my Sperry DM-4100 and an analog

Topband: Strange resistance between Beverage ground rods

I have reflection transformers at the end of every two wire Beverages which I try to test by measuring the wires on the feed end. I remove the transformer from the two wire WD1-A and check the resistance between the two wires which tells me that through the reflection transformer I have

Re: Topband: 160 m inverted L

Bread slicers have their issues and are not really the best solution. Using a fixed high current mica G2 broadcast capacitor of a higher value than you need, and making it variable with a series inductor is the way to go. This is what broadcast stations do in their ATU's. I haven't ever

Re: Topband: Traditional or off-center fed 160m vertical design?

Not having a balanced "T" top section defeats the whole purpose of reducing the radiation from the top horizontal wire. IMHO the more you can reduce wasted radiation of the cloud warmer effect the better your antenna will perform for DX. Herb, KV4FZ On 11/6/2016 3:16 PM, Robert Fanfant

Re: Topband: RF interference from 160m to GE Electric stove

Try several clamp on toroids first. Four spaced on the cord to the plug and run a separate ground wire from the stove chassis to a close by ground rod. Also you could try to put some .01 at 600 volts from the stove power input to ground. Herb Schoenbohn, KV4FZ On 11/6/2016 11:33 AM,

Re: Topband: Where is everyone?

On six meters here at FK77 it was hot to SA with over 200 PY, LU, CX, ZP, and CE contacts a few days ago. Many stations were well over S-9 On 10/22/2016 9:21 AM, Art Snapper wrote: Conditions here in Michigan on 80/160 were poor last night. The signals were weak and band noise was high. I

Re: Topband: BOG

If the far end is left un-terminated the BOG will not work well as I have found here. Try a small ground rod of 4 feet and a 250 ohm resistor and sweep again. I predict your results will be much better. On 10/16/2016 7:15 PM, Lloyd - N9LB wrote: Boxbe This

Re: Topband: New Noise - 160 Meters

I found a defective LED lamp that sounded. Getting the neighbors to turn off lamps one by one while you listen in the shack over the phone might help if they will do that. In my case it had peaks staring in the AM band and noticeable up to 4 Mhz. Also a bad cell phone charge adapter power

Re: Topband: Fw: WD-1 Wire impedance

But believe the WD1A really works well at this QTH in both forward and reverse modes. I have made many direct comparisons on extreme DX on 160 and the WD1A was the difference it too to hear the weak signal. My tests on the VK0 and VP8 Dx-peditions with a 600 foot single wire Beverage and the

Re: Topband: WD-1 Wire impedance

Some discussion of WD-1A on Google claims the impedance is 170 ohms and other claim 70 ohms. I have 1/2 mile on a spool that I will measure with a bridge and several resistors to see what is the nearest. On 10/10/2016 12:38 PM, Herbert Schoenbohm wrote: The impedance of WD-1A is supposed

Re: Topband: phased inverted V dipoles

Probably not worth the effort as any dipoles less than 250 feet high are serious cloud warmers. On 10/10/2016 9:21 AM, Filipe Lopes wrote: Hi guys We are rebuilding our station and I was thinking about putting up 2 dipoles 1/8 wavelength apart. Has anyone ever tried to phase them for

Re: Topband: VE3OSZ QRT on 160

I agree. Even a simple helix or slinky on a 30 foot fiberglass pole with a 3/4 in 10 foot aluminum extension and some 3 foot whiskers on top of that against a ground of a few radials would keep you in the ballgame. It could be all self supporting and withstand a 60 mph wind. Herb, KV4FZ

Re: Topband: WebSDR for Top Band

Thanks Simon I will give it a try. I installed the V1.5 console but lost all audio although it shows on VU meter. I had this problem with several other SDR consoles of other vendors and developers. The problem is not there when I use V3 which works flawlessly. Unfortunately V3 does not

Topband: WebSDR for Top Band

I have just purchased a SDRPlay unit and the RX is awesome. I plan to install it at a very quiet remote location on St. Croix where I have internet capability. However I need a server to expose it to other users and the only thing I can find is a Linux software. I plan to have it operational

Re: Topband: DXE NCC-1 phasing box

Martin, its all about reputation and DX-Engineering has the best. Back in the 80's some periodicals were marketing the MaxCom baluns which claimed that they would yield a 1.5 to 1 SWR from 1.8 to 30 Mhz but refused to provide the details in schematic form. Many hams bought into this scam and

Re: Topband: RX / TX antenna switching

The RF Sense MFJ type of switch box are cheap but do have limitations. The DX-Engineering RTR-1 is a bit more money but is considerably more user friendly with some added features like being able to check the RX antenna vs the TX antenna either with a momentary toggle switch or with the same

  1   2   3   >