Re: Topband: B7P

..  For many of us, about the best we can do is try to clean up the environment we can control. 73, Pete N4ZR On 4/4/2024 1:07 AM, Michael Tope wrote: That sure seems to be the case, Bob. Heck even on 40 meters I have found myself calling loud Chinese stations in vein. My dipole at 45ft just

Re: Topband: DX Conditions

No, they are not, but there's no reason I know of that would prevent RBN spots from being carried on any other network - they are distributed to the "wholesale market" (not end users please) on Telnet. 73, Pete N4ZR On 1/26/2024 6:06 PM, Don Kirk wrote: Hi Mike, As far as I kn

Re: Topband: Inverted L Question

that the local 500-watt radio station on 1500+ KHz went to low power at 6 pm, so my MFJ analyzer didn't freak out from the received signal. 73, Pete N4ZR On 12/21/2023 4:55 PM, Jim Brown wrote: On 12/21/2023 12:54 PM, Paul Dulaff via Topband wrote: Ran a basic EZNEC model with no tower present for your

Re: Topband: NCC-2 antenna pattern?

If you can get that close I suggest a small explosive charge 73, Pete N4ZR On 12/17/2023 10:31 AM, John Kaufmann via Topband wrote: If you are going to use the NCC-2 to null a nearby in-band transmitter, I think it's very likely that the NCC-2 will get overloaded by the extremely strong RF

Topband: 2-element receiving arrays

? -- 73, Pete N4ZR _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: 160M Conditions

No, just an error of understanding on my part.  I did a lookup for the last 36 hours, but the map only plots the last 100 spots, something that I should have realized but hadn't.  Apologies to everyone. 73, Pete N4ZR On 1/28/2023 8:59 AM, Tim Shoppa wrote: Context, Pete? Maybe you had some

Topband: 160M Conditions

This snapshot of RBN spots over the last 36 hours is a little disappointing. Is there really an international contest on? -- 73, Pete N4ZR _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Topband: Shape and height of K9AY loops

to the ground.  Has anyone experimented with this? What about the usual shape, but higher off the ground?  I have 4X30' radials plus a ground rod, with the radials laid under and in line with the elements -- 73, Pete N4ZR _ Searchable Archives: http://www.contesting.com/_topband

Re: Topband: Comparing antennas was: Re: 160m loaded tower

This is really cool. Somehow I had managed to miss the emergence of the Kiwi WEBSDR network.  Clearly, that *is* a better way 73, Pete N4ZR On 1/18/2023 4:52 PM, VE6WZ_Steve wrote: Further to Don and Steve’s comment about using an on-line KIWI WEBSDR to check your signal, I just uploaded

Re: Topband: Comparing antennas was: Re: 160m loaded tower

I agree entirely - the challenge is to model a tower and two multiband yagis with sufficient fidelity. 73, Pete N4ZR On 1/18/2023 2:19 PM, James Wolf wrote: It's quite possible that the addition of a beam at 60 ft. could cause capacity hat effect changing the current flow in the tower

Topband: Comparing antennas was: Re: 160m loaded tower

receiving antennas, without QSYing, but you must wait 10 minutes before the system will accept a second spot of the same station from you. 73, Pete N4ZR On 1/18/2023 11:31 AM, Stan Stockton wrote: Ignacy, Is your thought that you are a few dB weaker based on sone kind of A-B test of the two

Re: Topband: RFI tripping GFI breaker on 160m

Darrell, I suspect you would find better response on r...@contesting.com, where all the mavens hang out. 73, Pete N4ZR On 12/29/2022 9:20 PM, AB2E Darrell wrote: I trip a GFI breaker sometimes on 160m, usually in a contest 1500W. Never had a problem when GFI outlets were the norm, but I had

Topband: Sanity Check on K9AY Loop Sensitivity

in the right direction and S3 in the reverse. and S9 +10 on the inverted L. There's also something haywire in the K9AY's preamp, which *reduces* signal by a couple of S-Units.  Could be I need to replace the transistor? -- 73, Pete N4ZR One of the RBN team _ Searchable Archives

Re: Topband: ARRL 160

spots of TN4ZR, TK2XX, etc.  I see those in numbers every contest. 73, Pete N4ZR One of the RBN team On 12/7/2022 8:08 PM, m.r.c. wrote: that's where added half space has a useful point.  your increase in copied accuracy should more than offset the decrease in spot accuracy the ZIP speed

Topband: Correction

73, Pete N4ZR,one of the RBN team Check out our web server at <https://reversebeacon.net/main.php>. For spots, please use your favorite "retail" DX cluster. Earlier today, someone who shall remain nameless accused me of claiming sole credit for the RBN, based on my long

Re: Topband: ARRL 160

be glaringly obvious when spots for K3LPL and W3LPL showed up on the same frequency. I didn't see it happen. 73, Pete N4ZR,for the N1MM Team Check out our web server at <https://reversebeacon.net/main.php>. For spots, please use your favorite "retail" DX cluster. On 12/5/2022 10:55

Re: Topband: How good is good enough

Just cut 20 more 70' radials.  Time to go play in the yard. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<https://reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. On 11/12/2022 11:41 AM, Grant Saviers wrote: The 34 ohms

Topband: How good is good enough

Now that the lawn mowing is done for the season, I resuscitated my 160M inverted L.  With 13 on the ground radials, each roughly 70 feet long, measured R of 34 ohms seems OK to me.  Is it worth laying down more radials, or am I approaching diminishing returns? -- 73, Pete N4ZR Check out

Re: Topband: QRM Eliminator

Funny (I guess) - we have Chinese manufacturers cloning a Russian design. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<https://reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. On 10/9/2022 12:35 PM, K4SAV wrote: This link s

Re: Topband: QRM Eliminator

That's amazing - there are at least 10 different listings on Amazon, ranging from $54 to $70.  They all appear to be the same box,. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<https://reversebeacon.net>. For spots, please use your favorite "retail" DX c

Re: Topband: History of directional MF antennas

grade but I gave him a name to contact. He then showed me the pattern generating device he had built. I was impressed but did not fully appreciate its importance. I had forgotten about that visit till I read this message thread. 73 Pete - N8TR At 01:25 PM 3/30/2022, Grant Saviers wrote

Topband: ARRL DX 160 Phone - worth a try?

.  Is there someplace online where I can check for recent activity by country? -- 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<http://beta.reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. _ Searchabl

Re: Topband: Personal decision

I have to demur. Government-to-government sanctions are one thing, but ultimately it will come down to the Russian people turning against Putin, and it's hard for me to understand why they shouldn't feel the cost of his transgressions in this as in other areas. 73, Pete N4ZR Check out the new

Re: Topband: Personal decision

Yup.  Me too. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<http://beta.reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. On 2/24/2022 8:03 AM, MU 4CX250B wrote: Good move, Mark. We all know the current assault on Ukraine

Re: Topband: PLease!

Amen, Mel.  My favorites (ha) are the people who don't include *any* context in their replies. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<http://beta.reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. On 2/1/2022 2:05 PM, M

Topband: K9AY RX antenna

to nil, signal strengths are rarely better than my inverted-L, and the adjusting the termination seems to make very little difference.  Any hints? -- 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<http://beta.reversebeacon.net>. For spots, please use your favorite &

Re: Topband: Poor Propagation or Noise?

Hi Roger - unfortunately, we have no way of telling, because too many factors influence SNR at each individual node.  If you noted that the same RBN nodes were giving lower SNR reports than they had on previous occasions, then I'd guess propagation must have been poor. 73, Pete N4ZR Check out

Topband: RBN callsign pattern file revision

Skimmer "anticipate" common callsign patterns and require fewer repetitions for common patterns. -- 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<http://beta.reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. _

Topband: Radials on ground

, silver-plated (!) 18-gauge insulated copper wire.  Currently using 16, +/- 1/8 wave on-the-ground radials made with the stuff.   Feedpoint resistance seems to be by the book, at least as compared to feeding the antenna against a single ground rod. -- 73, Pete N4ZR Check out the new Reverse

Re: Topband: Wednesday CW DX Activity Night

http://beta.reversebeacon.net/main.php 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<http://beta.reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. On 1/4/2022 1:58 PM, Artek Manuals wrote: Roger I am not exactly sure which BE

Re: Topband: K9AY Loop Questions

No significant difference in most cases. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<http://beta.reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. On 1/3/2022 10:55 AM, W0MU Mike Fatchett wrote: Which antenna can you

Re: Topband: K9AY Loop Questions

Thanks, Cecil.  I may have to look into one of those multi-element solutions. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<http://beta.reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. On 1/2/2022 11:01 AM, Cecil acuff wro

Topband: K9AY Loop Questions

t the K9AY loop seems a little bit underwhelming. -- 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<http://beta.reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Balloon Supported Vertical

Here's an interesting source - https://balloonmarket.co.uk/lift-ability.  Looks like one of the last couple in the table should be big enough - say 5 feet in diameter for starters. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at<http://beta.reversebeacon.net>. For

Re: Topband: Inverted L's etc

FWIW, the only thing that would concern me about that sort of solution is the projectile, and its potential for damage if it should hit someone (or something).  I personally prefer the tennis-ball cannon (antennalauncher.com) for that reason. 73, Pete N4ZR Check out the new Reverse Beacon

Re: Topband: NA activity + Inv-L corner insulator

with a nylon sheave which has a very large and deep groove.  It's hard to imagine a scenario where the rope will hop out of this sheave. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at <http://beta.reversebeacon.net>. For spots, please use your favorite "retail&

Re: Topband: Corner insulator of Inverted L

Thanks everyone who replied - I think I have a handle on it now 73, Pete N4ZR Check out the new Reverse Beacon Network web server at <http://beta.reversebeacon.net>. For spots, please use your favorite "retail" DX cluster. On 9/25/2021 9:32 AM, Pete Smith N4ZR wrote: I'

Topband: Corner insulator of Inverted L

the  pulley caused it to break, so this time around I'd like to use a rope through the pulley and an insulator at the corner.  Question is how best to do it, to minimize strain on the antenna wire, making it more durable. -- 73, Pete N4ZR Check out the new Reverse Beacon Network web server

Re: Topband: Computer noise

Corcom makes a variety of filters that are designed to replace the AC power input connector on PC power supplies. I have done this on two and had good results. 73, Pete N4ZR Sent from my iPhone > On Nov 29, 2019, at 8:59 AM, YL2VW wrote: > > Hi > > I suggest checking i

Re: Topband: new style PL-259's with screw on back INSTRUCTIONS

EBAY item 192225630585 looks similar to the Multicomp clamp connector discussed on Towertalk early in 2011. See: http://lists.contesting.com/_towertalk/2011-02/msg00214.html 73, Pete - N8TR At 09:45 PM 12/4/2018, terry burge wrote: Hi Gary Take a look at ebay 'UHF PL259 male clamp Plug

Re: Topband: ARRL DXCC - 160 Meters

I worked OK1RD in 2011 on 2 Meter EME.  Don't k now if he is still active 73,  PeteR  N8PR Subject: Topband: ARRL DXCC - 160 Meters ARRL DXCC - 160 Meters -339 OK1YQ . Who is it ?? http://www.arrl.org/system/dxcc/view/DXCC-160M-20181116-A4.pdf#page=1=a uto,-12,848 --  Nick, UY0ZG

Topband: Location of WF RX Antenna. Need Expert Advice

Joe, You might consider that there is interaction of the Waller Flag and the other two towers as well as your transmit antenna while on receive. I suggest that you detune both of the other towers, as well as the transmit antenna while using the WF on receive to eliminate them re-radiating

Topband: Subject: 80 meter 4-square

Terry, You might consider four half wave sloping dipoles with the upper end hung out about 3 – 4 feet from the top of the tower. I used this arrangement with four Current baluns at the dipole center and 75 ohm feed. The feed points were spaced 1/4 wave apart just as you would with any

Topband: Subject: Re: Straws in the Wind ....A 160m Dx'ing Sea Change

This is just the same type of comment that was made back when SSB took over for AM Phone operations. SSB was considered “Not Real Ham Radio” and now is not even a pause in anyone’s mind about it being a “development” mode. FT8 is the same... a development that allows us to hear deeper into

Re: Topband: 160m polarization and elevation angles

Does anyone know when OH8X was active on 160? The RBN archive goes back to 2009, snd it would be fairly easy to mine the archive. 73 Pete N4ZR Sent from my iPhone > On Mar 30, 2018, at 3:50 PM, cqtestk4xs--- via Topband > <topband@contesting.com> wrote: > >

Topband: Working dupes on a band

In my opinion, there is nothing wrong with working the same station on the same band more than once. We used to do it all the time to assure we had "insurance" contacts with someone we needed for DXCC or other award. Online logs and ClubLog has limited that need to some extent, but not

Re: Topband: Topband Digest, Vol 181, Issue 20

John (and others) I would not like to see the below suggestion carried out for the following reason: There have been times that I have used a WebSDR receiver in Europe to help me decide where to transmit from here in Florida. An example was the 3C0/3C1 operations. I am pretty sure that

Re: Topband: Topband Digest, Vol 181, Issue 4

Just remember that the highest voltages are at the ends of the top hat wires. Insulate accordingly ;-) PeteR N8PR Message: 1 Date: Wed, 3 Jan 2018 14:28:22 -0500 From: Mike DeChristopher To: topband@contesting.com Bruce, I used to resonate my tower on 80m with

Topband: 160m Vertical Ideas?

Why not try a Half Sloper. Your tall crank up would work well with that... Take Coax up inside the tower and then run the braid to ground at the top of the tower and a 1/4 wave wire +/- off to one side at about 45 degrees. It will make the whole system work. You might have to cut or

Topband: RX/TX Antenna decoupling

Trevor, as well as the link from Chavdar, you might look at this You Tube video I made on detuning the TX antenna for reducing RX noise: https://www.youtube.com/watch?v=38G-awzhQH0=13s 73, PeteR N8PR To: topband@contesting.com Subject: Topband: RX/TX Antenna decoupling Hello Trevor,

Re: Topband: Topband Digest, Vol 176, Issue 12

I guess it depends on what you want to do on 160. Rag chew with the locals -- put up an NVIS low dipole Work the rare DX -- put up a 4 square of 1/4 wave verticals with 32 to 120 radials under each one and then buy a 200 ft. tower and put up a Waller Flag for receive. (or if you have 100

Topband: JT65 on 160

I keep reading about all the WSPR and other low power modes where one person was heard all around the world. Well, maybe on a given night that can happen. -23 on JT65 is 10 dB below the threshold where a CW signal can be copied by ear... and I see many signals on JT65/JT9 at that level into

Topband: Sept 12 JT65 on 1838khz...nice opening to Eu.

I have to disagree with some of what has been said about how much power to run using JT65. JT65 is a LOW SIGNAL mode, NOT a LOW POWER mode. We run 1500 watts into 20+ dB gain antennas on 2 meters for EME. Signals coming back from the moon vary between –10 and –29 dB Why limit yourself on

Re: Topband: Fw: Am I the only one in step?

Oh, boo hoo. So reduce the CW band to 10 kHz. Geeez. - Original Message - From: "Jim Brown" <j...@audiosystemsgroup.com> To: <topband@contesting.com> Sent: Tuesday, March 01, 2016 1:34 PM Subject: Re: Topband: Fw: Am I the only one in step? On Tue,3

Re: Topband: Fw: Am I the only one in step?

for at least 20 to 50 kHz on the bottom edge? Antenna BW is not an excuse. Pete - Original Message - From: "Roger Parsons via Topband" <topband@contesting.com> To: "TopBand List" <topband@contesting.com> Sent: Tuesday, March 01, 2016 12:04 PM Subject: Topban

Re: Topband: strange propagation

, Pete N4ZR Download the new N1MM Logger+ at <http://N1MM.hamdocs.com>. Check out the Reverse Beacon Network at <http://reversebeacon.net>, now spotting RTTY activity worldwide. For spots, please use your favorite "retail" DX cluster. On 1/16/2016 8:52 AM, Louis Parascondola v

Re: Topband: Using shielded CAT5 data cable as feedline for active antenna; benefits of multi-turn K9AY loop/SAL/etc?

polarization, according to his writeups, my thought was that perhaps combining vertical and horizontal polarization might yield a net improvement in SNR. 73, Pete N4ZR Download the new N1MM Logger+ at <http://N1MM.hamdocs.com>. Check out the Reverse Beacon Network at <http://reversebeacon.

Topband: Using shielded CAT5 data cable as feedline for active antenna; benefits of multi-turn K9AY loop/SAL/etc?

AL or flag/pennant receiving antennas, and did you see something similar? Any other critiques of his design would be appreciated. The price is certainly right, and the construction looks good. A couple of 1-meter coplanar loops wouldn't be at all hard to construct. -- 73, Pete N4ZR Download t

Re: Topband: Reversebeacon S/N interpretation

that CW Skimmer Server decides that it should spot a station, and normally anomalous SNRs only result if another station is near zero-beat. but with ADC clipping all bets are off. 73, Pete N4ZR Download the new N1MM Logger+ at <http://N1MM.hamdocs.com>. Check out the Reverse Beacon N

Topband: Which 4 directions?

to the switching system I have in place. -- 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. _ Topband Reflector Archives - http

Re: Topband: BCB Inv L

Sure is - Randall Mullinax, AD5RM. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 3/27/2015 11:12 PM, Art Snapper wrote: The radio station engineer

Re: Topband: beverage on ice

Even a very thin wire shouldn't be left. Could easily slice a swimmer or get tangled around wildlife. Pete M3KXZ On 18 Jan 2015 17:01, topband-requ...@contesting.com wrote: Send Topband mailing list submissions to topband@contesting.com To subscribe or unsubscribe via the World Wide

Topband: isolation transformer(s) in RX antenna feedlines (?)

I ran across a sketchy reference to this idea, described as a way to block common mode signals from making it into the shack by cutting off the paths from the coax shield to the RX input. Is there anything to the idea? -- 73, Pete N4ZR Check out the Reverse Beacon Network at http

Re: Topband: Outdoor rope suggestions

For putting up wire antennas I use 2 pulleys like those shown in the link K9YC provided. For general tower work I use 3 and 4 rescue pulleys like those shown at: http://smcgear.net/pulleys/stainless-steel-pulleys.html 73 Pete - N8TR At 06:30 PM 9/2/2014, Richard (Rick) Karlquist wrote

Re: Topband: Shunt feeding tower

for 160 (97 feet with 3 yagis, 2 on top) and I could not find a 50-ohm point.It was absurdly easy to adjust and seems to work quite well at 100 watts. I'm sure there are better solutions (including Herb's), but this was really simple. 73, Pete N4ZR Check out the Reverse Beacon Network at http

Re: Topband: Skimmer calibration

out of other people's way, nobody should be upset. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 8/18/2014 12:16 PM, Tom W8JI wrote: This is why some time

Topband: DC bias tee question

enough information. -- 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Crossed Field Antenna

. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 4/9/2014 9:28 PM, Michael St. Angelo wrote: It's been quiet on this group. The April 9th issue of Radio

Re: Topband: Passive Receive Antenna Splitter

. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 3/13/2014 11:07 PM, Joe Subich, W4TV wrote: I use a couple of old CATV splitters for general purposes

Re: Topband: In search of resonance

To my amazement, a 5000-watt AM station on 1550 KHz 5 miles away is enough to clobber my MFJ-259's usefulness during the day. Fortunately they drop to 6 watts at local sundown (what do you suppose that is, a single 6L6?) 73, Pete N4ZR Check out the Reverse Beacon Network at http

Re: Topband: In search of resonance

On 160, that is. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 1/31/2014 6:27 AM, Pete Smith N4ZR wrote: To my amazement, a 5000-watt AM station

Topband: Remote RX antenna switch - the end of the story

I'm getting aHeathkit 1480 - this homebrew thing simply isn't worth the tens of hours I've put in, all to no avail. Thanks to everyone for trying to help. -- 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please

Topband: oil-submerged variables

Thanks, everyone. I had not thought about the possible difference between 600M and 160 in terms of heating. Jon's suggestion of using big old micas sure seems like a good one if I can find what I need. As a refugee from the BC-610 era I'm amazed that any are still around! -- 73, Pete N4ZR

Re: Topband: Speking of Hardline

I don't know about anyone else's cable company, but when the prices of scrap metal went up a few years ago Comcast emptied out their local scrap yard. Actually, I'm just supposing that's the reason. I got a lot of good stuff there while they were willing to let it go. 73, Pete N4ZR Check out

Topband: End of a bias tee adventure?

at all (650 everywhere)? -- 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Buffaloed by a bias tee

Hi. Well, it does indeed seem to clinch it - when I power the tee but don't draw any current, the impedance measured by the MFJ does not change. So now to find some of the right sort of RFC. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog

Re: Topband: Buffaloed by a bias tee

at some Hammond chokes, no. 1532h - 100 uH, rated for maximum DC current of 500 ma., solenoid wound, self-resonant frequency of 12 MHz. Sound reasonable? 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go

Topband: Buffaloed by a bias tee

). I do not yet have a safety choke between the RX side and ground, but will add one before I deploy it, if I can ever figure out what's going on. I'd really appreciate some ideas of what to try. Thanks in advance! -- 73, Pete N4ZR Check out the Reverse Beacon Network at http

Topband: Buffaloed by a bias tee

and omitting the bias tee entirely, at least as a test. -- 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. _ Topband Reflector Archives

Re: Topband: Easy-to-learn 160 contest logging program?

It would make sense to raise this on n1mmlog...@yahoogroups.com. For that matter, a quick search will find a number of recent threads on exactly this topic. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go

Topband: Spam apparently from me

I am starting to get bounce notices for mail I didn't send, some of it with a bogus name associated with my address, so it looks like one of the creeps out there has my address. If you see anything atypical from my address, please delete it. -- 73, Pete N4ZR Check out the Reverse Beacon

Topband: Replacing F Connectors with BNCs

would be best, or which to stay away from? -- 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. _ Topband Reflector

Re: Topband: Replacing F Connectors with BNCs

, shouldn't that be adequate? 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 11/14/2013 7:31 AM, donov...@starpower.net wrote: Hi Pete, I wonder why

Topband: bias tee

would be an appropriate value? -- 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. _ Topband Reflector

Re: Topband: Replacing F Connectors with BNCs

Thanks, all - you've persuaded me. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 11/14/2013 8:14 AM, George Dubovsky wrote: Pete, I recommend you

Re: Topband: W8ji ATR-10 design 160M?

And for more info, send him $3. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 10/16/2013 11:01 AM, N4XM Paul D. Schrader wrote: Jim, I did not make

Re: Topband: 160 and 80 meter QRN prediction

Shouldn't you also look at lightning activity on the path between you and your area of interest? I've found quite often that the day after a big eastward-moving storm, there is a lot of noise on my path to Europe. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net

Re: Topband: Problem with compression F connectors on Quad RG-6

mylar from the connector, but don't know if it would really matter since the inner braid is folded back and making a good compression connection both to the inner foil and to the connector shell. What role does skin effect have in this situation - at 1.8 MHz? 73, Pete N4ZR Check out

Re: Topband: Problem with compression F connectors on Quad RG-6

Very interesting, Jim - I have been using Ideal connectors from Home Depot, and they have no color band at all (nor do they have decent instructions for installing). I will try to find some of the black-banded ones (I have red-banded ones for RG-59). 73, Pete N4ZR Check out the Reverse

Topband: Problem with compression F connectors on Quad RG-6

have also been unsuccessful in detecting a short using a simple DC multimeter. I;'m wondering if I should go through my RX antennas and replace all the F connectors and particularly the F to 259 adapters with something else, but what? BNCs? Anyone have any wisdom? -- 73, Pete N4ZR Check

Re: Topband: binocular matching transformers - Solved

) to put it back out in the field and see how it plays. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite All good topband ops know fine whiskey is a daylight beverage. _ Topband

Topband: binocular matching transformers

, and if so, how many turns/passes are appropriate for 160M? -- 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. All good topband ops know fine whiskey

Re: Topband: Elevated Radials

on lousy ground. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 3/6/2013 11:54 AM, ZR wrote: Since the radial field for any height vertical has equal

Re: Topband: [CQ-Contest] Wireless Remote Control Relays

for me My version is MS Word 2010 - let me know if you need an older one. I'm copying this to the topband reflector, but of course the attachment will be stripped off. If anyone needs one, please contact me directly. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net

Topband: alternative to vacuum variables

One of the reasons I have mot gone to high power on 160 is the cost of capacitors for my omega match - at least $300. Anyone know of any workable alternative? I remember someone writing about using coiled-up RG-8, RG-213 or maybe Teflon coax. Where can I find more information? -- 73, Pete

Re: Topband: Help with RFI

at UHF. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 1/12/2013 10:38 PM, Mike Waters wrote: I wrap a few turns of the CAT 5 Ethernet cable coming

Re: Topband: Another take on power line noise hunting

Or, since you don't really need a calibrated result, build a simple variable attenuator. Just about anything works so long as you can vary the sensitivity as you approach the power line. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog

Re: Topband: ARRL LOTW and More

And while you're at it, why shouldn't SO Assisted be separated from Multi-single? That is a relic of the earliest days of packet, and hasn't made sense for at least 20 years. 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com

Re: Topband: PE coated RG6

Craig, what does lateral mean here - parallel to or perpendicular to the length of the cable? 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 12/15/2012

Re: Topband: substandard quality F double females

Amphenol F connectors? Whoah! 73, Pete N4ZR Check out the Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com. For spots, please go to your favorite ARC V6 or VE7CC DX cluster node. On 12/15/2012 12:35 PM, Jim Brown wrote: On 12/15/2012 6:52 AM, Charles Bibb

  1   2   >