are the filters just snap in ? 2.4 to below a For helps activity). have 2nd am what I to 2400, Bob does maybe try prefer _______________________________________________ TenTec mailing list TenTec@con
Another possible alternative, depending on your state law, is a flagpole vertical. Here in Arizona, state law allows homeowners to display the American flag, military service, POW/MIA, the state and
Jerry writes: There is another school of thought that when those preferred lengths don't fit the premises or the wire on hand, is that the preferred length is the length that fits between the support
John, If I'm not mistaken, the Tarheel is using your mobile home as a ground plane. If you put it in your attic, you will have to make an equivalent ground plane for it to function properly. If you d
Rob, The morons may be in charge, but we have to deal with them since they are. TV antennas, to some degree, are protected by Federal statute. At least one ham antenna maker, Force 12, makes a TV ant
I know nothing about that situation, but have seen HOAs here in Arizona that prohibit any use of the property for transmitting. Wonder how they open their garage doors. 73 Ray W2RS In a message dated
I don't need permission to play, only to erect a basketball backstop. My next door neighbor came over one evening and after a little chit-chat, asked me to sign a document. I asked what it was. He sa
Rod, You must be thinking of the 565, because the settings on my 566 are different (v2.044A) 73 Ray W2RS In a message dated 12/5/2010 3:59:08 P.M. GMT Standard Time, w3krq@dejazzd.com writes: TEN TEC
I seem to get the best reports with my Orion II's TX EQ flat, bass roll-off at 150 Hz, and TX bandwidth at 2850 Hz. The mic is a T-T 707. 73 Ray W2RS In a message dated 12/6/2010 7:22:43 P.M. GMT Sta
Theoretical efficiency is usually figured as if the antenna is in free space, but of course it isn't. Height above ground, ground characteristics, surrounding objects, etc., all must be taken into ac
Jim, As I recall it was a 100-watt bulb, written up in QST some years ago. A Slinky dipole beat it, though. Then there's always the beer can vertical: 43 cans and a Coke bottle insulator. 73 Ray W2RS
Hi all, The technology has been around at least since WW2, but the question is: who first used the term NVIS to describe it, and when. Other than the fact that QEX began publishing in 1981 (I was a s
Ken, I guess it's a matter of semantics. If something "just happens," it's a phenomenon. If you design the system to produce that effect, it's a technology -- to me, anyway. By this definition, the p
I, too, have always had good results with vertical dipoles. Pat Hawker wrote one of mine up in 1970 or 1971. It consisted of a 12AVQ trap vertical for the top half, and quarter-wavelength counterpois
Nate, My experiences lead me to go even farther. I have an elevated (10 feet above ground) Hy--Gain AV-640, which is a 3/8-wave multi-band vertical with top hats and four 6-foot counterpoise rods. My
You can. One version of that is called an inverted-L, or "Marconi," and has been around for quite a while. I've got one. 73 Ray W2RS In a message dated 1/7/2011 8:21:33 P.M. GMT Standard Time, barret
When I was an undergraduate at MIT, there was a requirement for a Bachelor's degree thesis. Mine was about bouncing 2m signals off Echo II (see my QST articles about that in 1962). Anyway, they invit
Jerry, That's a point that never came up in their discussion! 73 Ray In a message dated 1/8/2011 12:31:29 A.M. GMT Standard Time, geraldj@weather.net writes: II (see my quickly got dB One of those tr
Steve, Quite right! I was laughing under my breath, but did my best not to let it show. 73 Ray In a message dated 1/8/2011 12:50:36 P.M. GMT Standard Time, steve@karinya.net writes: Ray, If that had
Tom, In a pinch, I have used Radio Shack's "heavy duty" 300-ohm twin-lead with power levels up to 500 watts. No problems. 73 Ray W2RS In a message dated 1/9/2011 5:07:40 P.M. GMT Standard Time, xring