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Total 552 documents matching your query.

121. Re: [VHFcontesting] 902 mhz (score: 1)
Author: David Olean <K1WHS@metrocast.net>
Date: Mon, 19 Dec 2016 23:18:46 +0000
I have a similar array, and it is a killer. It is sharp and delivers huge amounts of gain. Mine is at 120 ft. I love how it plays. K1WHS On 12/19/2016 10:44 PM, Herb Krumich via VHFcontesting wrote:
/archives//html/VHFcontesting/2016-12/msg00012.html (7,825 bytes)

122. Re: [VHFcontesting] Log Periodic ? (score: 1)
Author: David Olean <K1WHS@metrocast.net>
Date: Thu, 14 Sep 2017 17:42:10 +0000
I remember seeing one at the NEVHF Conference a few years back. Gain was low at about 4- 5 dBd but at 900 MHz the main lobe started to have a double lobe out front. Not good and reduced the gain ther
/archives//html/VHFcontesting/2017-09/msg00111.html (16,704 bytes)

123. Re: [VHFcontesting] Portable 50 MHz beam antennas (score: 1)
Author: David Olean <K1WHS@metrocast.net>
Date: Fri, 16 Feb 2018 17:53:28 +0000
More data.... We ran a similar test using a rover station 4 element 50 MHz yagi at 12-14 ft vs a halo at 35 ft. This was a real test and not a quick exchange during a contest. The path was about 280
/archives//html/VHFcontesting/2018-02/msg00066.html (22,550 bytes)

124. Re: [VHFcontesting] What separates a decent transverter from an awesome transverter? (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Wed, 25 Apr 2018 13:37:00 +0000
LO drift is a big problem. One of the underlying reasons for the results you have seen is the quality of the crystals that are being supplied to the transverter manufacturers. Parts that were tested
/archives//html/VHFcontesting/2018-04/msg00080.html (11,888 bytes)

125. Re: [VHFcontesting] 902 last call (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Mon, 28 May 2018 19:33:47 +0000
If I remember right, I made those four 47 element loop yagis for N2CEI and he had them at his house and actually heard CW echoes off the moon on 900 MHz with them.  Later on, i think he passed them a
/archives//html/VHFcontesting/2018-05/msg00079.html (9,843 bytes)

126. Re: [VHFcontesting] Very poor contest in FN55 (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Wed, 13 Jun 2018 15:01:00 +0000
Hi Mr. N1BUG!    I know what you are saying about 144 MHz. That has always been my favorite band from the time I heard my first signal while standing on a branch in our apple tree. My brother and I w
/archives//html/VHFcontesting/2018-06/msg00076.html (10,803 bytes)

127. Re: [VHFcontesting] Sprint not? (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Mon, 8 Apr 2019 14:25:13 +0000
I was hoping to get up to my ham shack on the hill, but temps dropped overnight to the 20's and it is snowing. There is no heat up there. I am thinking that hauling gear up there today will be a losi
/archives//html/VHFcontesting/2019-04/msg00012.html (8,431 bytes)

128. Re: [VHFcontesting] Did anyone else have fun in the January VHF/UHF contest? (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Thu, 23 Jan 2020 17:26:04 +0000
Hi Chet & Ron The January VHF Contest is made for trouble. That is probably the reason it has been so popular over the years. That being said, I stopped getting on VHF in 2017 after 55 years of fun a
/archives//html/VHFcontesting/2020-01/msg00061.html (15,645 bytes)

129. Re: [VHFcontesting] 2M Spring Sprint Results (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Wed, 8 Apr 2020 22:46:21 +0000
Hello Buddy I did not resort to FT8. I did hear a bunch of stations using it, but I had all I could do to get a signal on the air. I went though a pile of old XP laptops trying to find one that worke
/archives//html/VHFcontesting/2020-04/msg00013.html (9,375 bytes)

130. Re: [VHFcontesting] Multi-pole relays with 28V common?? (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Thu, 7 May 2020 23:49:13 -0500
It might be defective.  I had an SMA relay like that. As soon as the case was grounded it would short out! Dave K1WHS On 5/7/2020 6:17 PM, John D'Ausilio wrote: I've had a pair of 1P3T SMA latching r
/archives//html/VHFcontesting/2020-05/msg00010.html (8,047 bytes)

131. [VHFcontesting] K1WHS 50 MHz Sprint (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Mon, 11 May 2020 09:01:43 -0500
I  was quite ill in 2017 so no ham radio for that year, then 2018 and 2019 was all fly fishing for brookies and salmon, so no ham radio those years either.  The fly fishing season is in full swing be
/archives//html/VHFcontesting/2020-05/msg00016.html (11,449 bytes)

132. [VHFcontesting] VHF plans for K1WHS (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Fri, 22 May 2020 09:43:55 -0500
It has been a few years since I set foot in my VHF shack. The three or four years has messed up just about everything on the towers.  The location is a windswept ridge, and it gets lots of wind.  A f
/archives//html/VHFcontesting/2020-05/msg00023.html (9,985 bytes)

133. [VHFcontesting] 222 antenna repairs (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Thu, 25 Jun 2020 16:45:30 -0400
I have been working on repairing my broken 222 MHz antenna system. The antenna was a quad yagi stack of 22 element long 222 yagis.  It was a really  great antenna tht produced great echoes on the hor
/archives//html/VHFcontesting/2020-06/msg00054.html (9,502 bytes)

134. [VHFcontesting] An idea for the sprints. (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Thu, 1 Oct 2020 17:01:06 -0400
It isn't much of an idea, more a suggestion, to not abandon the VHF sprints when activity dies down after the initial spurt of activity.  I was not a big fan of opening up chat pages for coordination
/archives//html/VHFcontesting/2020-10/msg00004.html (8,564 bytes)

135. Re: [VHFcontesting] [222Activity] An idea for the sprints. (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Fri, 2 Oct 2020 08:45:59 -0400
Simple fix..... 21:01 (local)  RFI appears 21:01:30  Pull breaker for living room on the main circuit panel 21:01:30:04  Girls start screaming. 21:03:00  You go to living room and assess the situatio
/archives//html/VHFcontesting/2020-10/msg00009.html (12,538 bytes)

136. Re: [VHFcontesting] An idea for the sprints. (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Fri, 2 Oct 2020 11:12:31 -0400
Hi Jay, i hear you.   I live on the  edge of the abyss. If I turn my beam NE I see what you are talking about. There is almost zero activity in that direction. The only way I can tap into the real ac
/archives//html/VHFcontesting/2020-10/msg00016.html (15,153 bytes)

137. Re: [VHFcontesting] Tech Help needed (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Sat, 2 Jan 2021 11:42:26 -0500
I think the problem is that the Q of the antenna is so high that the elements cannot supply a reasonable reactance at the FT-8 frequency for the matching section to work with. The solution is to try
/archives//html/VHFcontesting/2021-01/msg00007.html (13,222 bytes)

138. Re: [VHFcontesting] K1WHS 2M Sprint (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Mon, 5 Apr 2021 13:25:58 -0400
It is raining today. My 144 beams are thrown off by about 100 degrees from the last two bad wind events. There is no radio in the 2M position.  I was hauling gear up yesterday I am not sure I can be
/archives//html/VHFcontesting/2021-04/msg00011.html (7,731 bytes)

139. Re: [VHFcontesting] 222SprngSprnt W9SZ Single Op QRP (score: 1)
Author: Dave Olean <k1whs@metrocast.net>
Date: Wed, 14 Apr 2021 11:51:08 -0400
Hi Zack, What kind of beam is it? The old CC yagis 11 el etc. all used plated #10 hardware. The mounting hole was 0.191" or so. The element was 0.187 drawn aluminum, so it was possible for the drille
/archives//html/VHFcontesting/2021-04/msg00024.html (9,605 bytes)

140. Re: [VHFcontesting] Warmup Drift Of Ukranian , UT5JCW, 222 MHz Transverters & Possible Use With FT-8 (score: 1)
Author: David Olean <k1whs@metrocast.net>
Date: Fri, 16 Apr 2021 11:43:22 -0400
You have to consider ambient temperature as well as the straight warmup drift. Any portable operation will make things worse as the transverter adjusts to a changing ambient temperature. I run into t
/archives//html/VHFcontesting/2021-04/msg00038.html (12,215 bytes)


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