Re: Topband: EIRP Measurement

2012-02-22 Thread Richard Fry
The maximum power radiated by a short monopole antenna system may be calculated using equations found in standard engineering texts. The link below shows a system with a 50 ft monopole radiating 1 watt EIRP on 630 kHz using the values shown for the r-f loss in the loading coil and r-f ground

Topband: CQ 160m CONTEST QRV

2012-02-22 Thread Hüdabverdi Güneş
Hello friends, we will be QRV on KN90RX for CQ Contest 160m. Contest Callsign YM7KA M/S. ( www.ym7ka.com) Equipment; -IC756 Pro -1KW -L Antenna (24 Radial system) -For RX Baverage (240m + 240m, North and West) 73s TA7OM, Huda ___ UR RST IS ... ... ..9

Re: Topband: Topband list and 630 Meters - the decision

2012-02-22 Thread W2XJ
The sign up procedure fails. There seems to be a problem with the majordomo address. On 2/22/12 1:17 AM, Mike Waters wrote: Thanks. That must be it. http://www.500kc.com/Maillists.htm On Tue, Feb 21, 2012 at 9:59 PM, Tod Olsont...@k0to.us wrote: http://www.500kc.com/

Re: Topband: EIRP Measurement

2012-02-22 Thread W2XJ
Ahh but I think the FCC will see things much differently. I base this on the existing 60M regs where an ERP is specified: (i) No station may transmit with an effective radiated power (ERP) exceed- ing 50 W PEP on the 60 m band. For the purpose of computing ERP, the trans- mitter PEP will be

Re: Topband: EIRP Measurement

2012-02-22 Thread W2XJ
I would disagree. The signal measured along the ground is affected by ground losses and is subject to ground conductivity even though the charts show maximum gain along the ground. The signal radiated at angles above about 10 degrees is governed by inverse distance and therefore less loss. An

Re: Topband: EIRP Measurement

2012-02-22 Thread W2XJ
That is not what I said. The skywave would only be stronger if field measurements on the ground were used to determine power due to various ground losses, ground conductivity, etc. when an RF ammeter is used for measurement (standard practice

Topband: ARRL CW DX test

2012-02-22 Thread Craig Clark
I should have asked this question during the contest but was a bit busy. Did anyone try to work us at PJ4X and not get through? Our 160 station was on 160 and 15 and both bands had receiving problems. Additionally, we don't think our US Beverage was working very well. West of the Mississippi,

Re: Topband: ARRL CW DX test

2012-02-22 Thread Jim Brown
On 2/22/2012 8:51 AM, Craig Clark wrote: Our 160 station was on 160 and 15 and both bands had receiving problems. I'm assuming that you were at the house on the hill that Noah owns with a group. I operated from there a year or so ago, and helped string a Beverage along the road running down

Re: Topband: EIRP Measurement

2012-02-22 Thread Tree
Okay - I think we have hashed this one to death - thanks for the input, but time to get back to topband related posts. Thanks. Tree ___ UR RST IS ... ... ..9 QSB QSB - hw? BK

Re: Topband: EIRP Measurement

2012-02-22 Thread Joe Subich, W4TV
On 2/22/2012 11:04 AM, W2XJ wrote: I would disagree. The signal measured along the ground is affected by ground losses and is subject to ground conductivity even though the charts show maximum gain along the ground. The signal radiated at angles above about 10 degrees is governed by inverse

Topband: EIRP Measurement

2012-02-22 Thread Tracey Gardner
Further - and this has gotten beyond the 160 meter scope of this list - 630 meter propagation will be almost entirely groundwave as ionospheric conditions generally do not support skywave (a primary reason for the use of LF and low MF for NDB). Since skywave is not supported, it makes

Topband: EIRP Measurement

2012-02-22 Thread Tracey Gardner
Further - and this has gotten beyond the 160 meter scope of this list - 630 meter propagation will be almost entirely groundwave as ionospheric conditions generally do not support skywave (a primary reason for the use of LF and low MF for NDB). Since skywave is not supported, it makes

Re: Topband: ARRL CW DX test

2012-02-22 Thread Dale Long
I am sure Craig's post was not meant to be critical, and we cannot presume this was the problem. We do not even know whether they were indeed at Noah's station. There are now at least two well-equipped contest stations on PJ4. Following the advice of my father, we should say only good things, or

Re: Topband: Topband list and 630 Meters - the decision

2012-02-22 Thread Terry Conboy
This link worked for me: http://w7ekb.com/mailman/listinfo/600mrg_w7ekb.com On 2012-02-22 8:14 AM, ZR wrote: Sorry about that, I went to bed without testing the link and forgot about the subscription process. I hope everyone has the correct info now. Any questions send me a direct email.

Re: Topband: Skywave for LF

2012-02-22 Thread K9RT
Also the European broadcasters just below 200 khz are frequently logged in the midwest. Dick K9RT In a message dated 2/22/2012 2:26:21 P.M. Eastern Standard Time, 73rjk...@sympatico.ca writes: 630 meter propagation will be almost entirely groundwave as ionospheric conditions

Re: Topband: Skywave for LF

2012-02-22 Thread ZR
I regularly copy the LF BCB from EU/AF and the Mideast down around 200KHz when skywave is good. Granted they run super QRO but they have poor ground efficiency and are meant for country coverage only, Carl KM1H - Original Message - From: Robert Kavanagh 73rjk...@sympatico.ca To:

Topband: Wired/wireless Beverage hub progress.

2012-02-22 Thread Pete Smith N4ZR
I hooked up the hub today, and initial results are excellent. For those who missed earlier messages - here's the story. I ran across an inexpensive 8-way relay board on E-bay for less than $20. It is controlled by a 300-MHz radio remote, and I figured I might be able to use it for remote

Re: Topband: Wired/wireless Beverage hub progress.

2012-02-22 Thread ZR
Absolutely! Switching multiple RX antennas is always a major headache. Ive been scratching my head so long trying to figure out how to handle 3 hubs Ive worn down my fingers since the skull is so thick!! How about more info on what and where you actually bought? Carl KM1H - Original

Re: Topband: ARRL CW DX test

2012-02-22 Thread Nathan Moreschi
Craig, My first attempt around 0355z failed but about 35 minutes later it was pretty easy. I ran 100 watts to an inverted L (65 feet vertical and about 70 feet horizontal) with 3 quarter wave raised radials on 160. 73, Nate/N4YDU -Original Message- From: Craig Clark Sent: Wednesday,

Topband: 8-way RX antenna switch

2012-02-22 Thread Pete Smith N4ZR
For those who asked, the Ebay item is http://www.ebay.com/itm/130545242235?ssPageName=STRK:MEWNX:IT_trksid=p3984.m1439.l2649 -- 73, Pete N4ZR The World Contest Station Database, updated daily at www.conteststations.com The Reverse Beacon Network at http://reversebeacon.net, blog at

Re: Topband: 3C0 - on Topband

2012-02-22 Thread Ryszard Tymkiewicz
Javi and Elmo have apparently arrived on Bioko Island, Equatorial Guinea and QRV as 3C6A. They will be there until February 26th. From February 27th to March 11th they will be on Pagalu Island, more commonly known as Annobon Island, operating as 3C0E. To my knowledge no one in the US has worked