Re: Topband: Legality of Circumventing Commercial Maritime ISP Services??

Dan, If the traffic is limited to health and welfare informational messages to family and friends I don't see any issue with cruisers using the ham bands. It also depends on your interpretion of FCC Part 97.113. Since we now have online buy and sell and trade services does this mean that these

Topband: Crossed Field Antenna

It's been quiet on this group. The April 9th issue of Radio World Magazine has an article about the Crossed field Antenna. An company, Crossed Field Antennas LTD, Has filed a comment with the FCC espousing its advantages: http://apps.fcc.gov/ecfs/comment/view?id=6017582994 This should rustle

Re: Topband: Rig Comparisons

Jim, The Mobility industry has been using pre-distortion. It has finally been implemented in the Hermes and Apache Labs Transceivers by Warren C. Pratt. He has won the ARRL Technical Innovation award and justly deserves it: From

Re: Topband: RUSSIAN 160 METER CONTEST

The Topband reflector has a worldwide audience so it makes sense that Vlad mentions it here. Other regions of the world will have good propagation at that time. Mike N2MS -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Milt -- N5IA Sent: Friday,

Re: Topband: Stew Beef

The Stew Perry contest is one of the better ones but I agree with Larry and Joe. Contests tend to take over the band and interferes with other form of operation such as DX'ing, QRP and probably Digital operators. What is missing is that we don't have a "WARC" type MF band which is free of

Topband: F-type connectors transmitting question

I acquired some Commsphere Flooded F-11 type coax. I installed compression Type UHF connectors on the coax. I solder the copperclad center conductor to the center pin. The shield braid is connected via compression. The UHF connectors are working but I am concerned about the reliability because

Re: Topband: Terminating resistors

I use these on my dummy loads. Keep in mind that they need to be mounted on a heat sink and because of the small size they don't handle surges like their larger brothers. If there is a change of lightning strikes nearly you may want to parallel multiple units. Mike n2MS > > On

Re: Topband: twisted house wiring

BX cable is still required in New York City. I had to use it when I lived in Queens. How did the metal wrapper get hot? Was current passing througgh it? The BX I had included a ground wire; maybe the earlier BX used the wrapper as the ground. Mike N2MS > On February 22, 2017 at 3:45 PM

Re: Topband: coax soldering

I don't like soldering to coax connectors and use crimp connectors. I know they made BNC crimp connectors for RG-6. They may make crimp type PL259 connectors for RG-6. Another option is to stick with F type compression connectors and install F type female receptacles on the equipment.

Re: Topband: New user, some advice needed.

Pat, My Inverted L is longer than a quarter wavelength. I also use it on the HF bands 80-20 and it is easier to match since it is not a multiple of a half wavelength Mike N2MS > On December 21, 2016 at 3:43 PM Patrick Armstrong wrote: > > >I have noticed several

Re: Topband: Ladder line Beverage Installation

I drive the metals posts into the ground and slide a 10 foot section of gray PVC pipe over the post for my supports. Mike N2MS > On April 13, 2017 at 2:43 PM Herbert Schoenbohm > wrote: > > > Maybe since my Beverages have to be at least 8 feet high to avoid

Re: Topband: Ladder line Beverage Installation

Fritz, I cut a U shaped slot on the top, install a short piece of tubing and run the wire through the tubing. I keep the tubing in place by placing a black UV proof tywrap on the top of the pipe. I use tubing so as to not chafe the wire. Mike N2MS > On May 12, 2017 at 9:36 PM FritzOAQ

Re: Topband: Best 160 antenna

Have there been any professional studies done on the efficiency of elevated radials? One would think the broadcast industry would be interested in a few elevated radials instead of burying all that expensive copper. They could use the Aluminium conductor steel-reinforced cable favored by the

Re: Topband: No American activity

Roger, That is late evening/early morning in the North America. I'm fast asleep on weekdays since I have to get up for work. I try to operate during your sunrise on Friday and Saturday nights when I remind myself to take a nap during the day. Not as young as I used to be... Mike N2MS > On

Re: Topband: Radial Wire System Comparison - (was adding a parasitic reflect

Paul, I got a good deal on stranded teflon wire. It cost me $0. I lay it on the ground. The only issue I have with it is that the wire is stranded and it wicks in moisture. Teflon is easily nicked and the moisture finds it's way in. You mentioned your wire is solid so you should not have that

Re: Topband: Radials in the desert

Chet, Have you tried digging a shallow trench with an edge trimmer? They are also known as edgers. Mike N2MS > On June 20, 2018 at 8:06 AM Chester Latawiec wrote: > > > > Any suggestions on burying radials in the desert sands of Kingman AZ? > Radials placed on the surface just stay

Re: Topband: TN5R to start tonight on TB

This has been happening for years with DX spotting. The technology has changed but the urge to get the new one hasn't Mike N2MS > On March 13, 2018 at 11:10 AM Roger Cooke wrote: > > > What??? Another cheat? I thought this was amateur RADIO, you know, > contacts over

Re: Topband: Laser Com introducing a breakthrough Top Band antenna at Dayton

Keep in mind this is only effective with FT-8, not CW... Mike N2MS > On April 1, 2018 at 12:01 PM donov...@starpower.net wrote: > > > > > > Laser Com Announces New Topband Antenna System > > > > > Reported by Woody K3YV > > > Laser Com, Inc. of Titusville, Florida recently

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

These are compression connectors similar to the N type compression connector. I use them as well as crimp type UHF connectors because I don't like the solder type PL259 connectors for RG-8. RG-58 or LMR-400 type coax. Pasternack offers a similar type connector. Their data sheet has assembly

Re: Topband: Pasternack PL259

I believe the connector produced in China have threading problems. Mike N2MS > On December 5, 2018 at 4:52 PM James Lee wrote: > > > The Pasternack offerings are pretty expensive, especially given that no > silver is present! They are listed at about 11 bucks each unless I misread > the

Topband: Effect of Radial Field on Antenna Impedance

Now that the leaves are off the trees and the cold weather has returned it's time to do antenna work. I have an inverted L between two trees with 34 radials on the ground. Four radials are 135 feet long, the rest 70 feed long. I choose these lengths because they fit my yard. During the summer

Re: Topband: JAs in "droves"

HF frequencies are not really used for communications these days except for backup or emergency purposes. Ironically, this fact will take the pressure off of auctioning the Amateur 160 Meter and HF bands. I worked for two companies that ran HF Coastal stations, ITT and AT ITT wanted to close

Re: Topband: COSMIC RAY UPDATE

Mark, I hear you. As an engineer I basically worked a sedentary office job during the day and operated at night. When I retired I figured I would have more time but I make it a point of being active. My wife and I take a hike very day. When out of the house I try to operate portable therefore

Re: Topband: COSMIC RAY UPDATE

I attribute the decline in participation to the raising noise floor and the aging population of ham radio operators. I been operating 160 since I moved to the present location form a city lot in 1998 and have noticed the noise level constantly raising. I've been successful in noise sources in

Topband: Reminiscence of Stew Perry

David J Ring Jr of the Radio-Officers Facebook page shares some stories of Stew Perry who was also a Radio officer as well as a friend. Mike N2MS _ Searchable Archives:

Re: Topband: TopBand DownUnder

I remember the Slinky's being copper plated. I wonder if the skin depth lowered losses on 160 meters. Mike N2MS > On 09/14/2021 9:33 PM W0MU Mike Fatchett wrote: > > > I have a drawer full of slinky's the steel version.  I recall that > someone was making slinky beverages for people that

Re: Topband: Lawn staples

Gene, My inverted L is at teh edge of my lawn. I have 35 radials in a 200 degress radius in the wooded arear of my yard. I add 6 more radials in the grassy area of my yard in November when finished with the mowing and remove them in the spring. I measure the impedance before and after. The