Rhombic antenna "gain"
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On 9/13/2019 4:18 PM, [hidden email] wrote:
> I visited many rhombic antenna farms many years ago (as far as I know > they've now all been dismantled). The Maritime Radio Historical Station KPH (ex-RCA) site in Bolinas, CA may still have one up, but I'm not certain that it is still in service - we've lost a number of antennas to weather damage and ageing poles and wires. I'm still waiting for our 8 MHz RTTY transmitting antenna to go back up. Unabashed commercial - www.radiomarine.com 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Jim Campbell
On 9/13/2019 5:45 PM, Jim Campbell wrote:
> We also had Elephant Cages later on. Funny no one has mentioned them. They (we called them the "Type W") were the mainstay of the FCC's HFDF system from the 1970s to several years after I retired in the mid-1990s. Their function was directivity, not gain. We took the military's design and one of our engineers improved on it, and we usually outperformed theirs on tests. AFAIK all of the FCC's and the military's are now gone, replaced by more sophisticated DF antennas. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Jim Brown-10
On 9/13/2019 5:47 PM, Jim Brown wrote:
> There's another RX station along Rte 1 S of Half Moon Bay, with an > associated TX station around Palo Alto. KFS -- all gone now, not even buildings are left. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by k6dgw
On 9/13/2019 6:56 PM, Fred Jensen wrote:
> There was a small group of hams who either tried, or succeeded, in > getting permission to put one of the remaining Delano Sterba's on 160 > [and maybe 80]. I'm not sure if they were successful, As I remember it, it was the Sacramento Ham Club that got permission to use the antenna at VOA Dixon for a Field Day shortly after the VOA decommissioned the site. After they hooked everything up, they could not hear anything with it because of the high gain antenna picking up the signals from NPG - the Navy's transmitting site - two miles down the street. Someone forgot that there's a reason that receiving sites are located far, far away from such high-power transmitting sites. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by k6dgw
On 9/13/2019 6:56 PM, Fred Jensen wrote:
> I think the Half Moon Bay stn was KFS. It's brother site was in the mud > flats off of the Palo Alto shoreline in the Bay, all gone now. At least > one of the KFS transmitters is now operating at KPH. Ah yes, the PW-15, built for Press Wireless in the 1940s for continuous RTTY press transmissions at 15 KW. It's now running at 5 KW in CW mode and should last as long as we can get tubes for it. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by donovanf
On 9/13/2019 8:15 PM, [hidden email] wrote:
> Its nearly impossible to hide those old Wullenweber arrays, even if they've > been dismantled for nearly fifty years The FCC's have all been dismantled. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Phil Kane-2
Not true. The KFS receive site building and some antennas are still there and being used for "something". In fact there is a web SDR hooked to the big log periodic.
73, Brian, K0DTJ HMB, CA > > KFS -- all gone now, not even buildings are left. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by donovanf
Do a google on W6AM. Don was a ham's ham with many Rhombic antennas.
Years ago he and W1FH for several years would exchange being on the top of the DXCC list. Interesting reading. 73 Bob W7AVK On 9/13/2019 8:22 PM, [hidden email] wrote: > Hi mike, > > > Wasn't Rota an FRD-10, not an FLR-9? > > > www.google.com/maps/place/36%C2%B039'24.0%22N+6%C2%B021'54.0%22W/@36.6567863,-6.3663994,682m/data=!3m1!1e3!4m2!3m1!1s0x0:0x0 > > > 73 > Frank > W3LPL > > ----- Original Message ----- > > From: "Michael P. Rioux" <[hidden email]> > To: "Jim Campbell" <[hidden email]> > Cc: [hidden email] > Sent: Saturday, September 14, 2019 1:26:20 AM > Subject: Re: [Elecraft] Rhombic antenna "gain" > > I still get a kick out of thinking that I worked INSIDE of the antenna! (Rota’s FLR-9) > > Si vis pacem, para bellum > > Mike, W1USN > > > >> On Sep 13, 2019, at 8:45 PM, Jim Campbell <[hidden email]> wrote: >> >> We also had Elephant Cages later on. Funny no one has mentioned them. If you want to see a real monster https://en.wikipedia.org/wiki/AN/FLR-9 <https://en.wikipedia.org/wiki/AN/FLR-9> Also known as a "Wullenweber" or AN/FLR-9. >> >> Jim - W4BQP >> On 9/13/2019 8:28 PM, Dick Dievendorff wrote: >>> Small world. I was in a similar line of work, for the Navy, using an R-390, >>> but I don't think we had Rhombics. This was in the mid-60's >>> >>> Lots of us in ham radio. >>> >>> 73 de Dick, K6KR >>> >>> -----Original Message----- >>> From: [hidden email] <mailto:[hidden email]> <[hidden email] <mailto:[hidden email]>> On >>> Behalf Of Jim Campbell >>> Sent: Friday, September 13, 2019 17:21 >>> To: [hidden email] <mailto:[hidden email]> >>> Subject: Re: [Elecraft] Rhombic antenna "gain" >>> >>> In the late '50s I was stationed at a field station in Northern Germany that >>> was monitoring transmissions from the 'other side'. We were at a former WWII >>> German airfield and had an antenna farm comprised of rhombics. I never >>> bothered to count how many there were but I estimate that there were more >>> than a dozen and they were in the order of 90' >>> above ground. I was a ham at the time (DL4AQ) but not active. >>> >>> I believe that my K2 and a low 88' doublet hears better than would a rhombic >>> and a SP-600 from those days. I almost can't believe the signals I'm hearing >>> at the bottom of the sunspot cycle with said K2 and low 88' >>> doublet. The old days weren't the good old days. >>> >>> 73, >>> >>> Jim - W4BQP >>> >>> . Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Ken G Kopp
I guess they were used a many military sites. In 1984 I helped
install a 250w commercial VHF link from top of Mt. Balleyhoo (above Dutch Harbor in the Aleutians) and there was the remains of many 90 foot wooden poles arrayed up in a valley on the side of the mountain that was used by the military in WWII. I would guess they held rhombic arrays as the poles were in lines with total length probably 1000-foot. Dutch Harbor was attacked by Japan in WWII but did not fall to the Japanese like Attu and Kiska Islands did. The campaigns often referred to as the "Forgotten War". Only US territory occupied by enemy forces since the war of 1812. There were abandoned concrete gun emplacements on the cliffs on top of the mountain - interesting to explore and look out of thinking how it was in 1942. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by donovanf
Correct. USN had FRD-10's and USAF/US Army had FLR-9's.
Lesser know variant of the FRD-10 was called the "Pusher". We had one out on Diego Garcia. About half the size of the FRD-10 iffen I reall correctly. I spent almost 5 1/2 years working at the one at NSGD Guam. 73, Todd KH2TJ >Hi mike, >Wasn't Rota an FRD-10, not an FLR-9? >73 >Frank >W3LPL ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by k6dgw
Just bring 600 ohm open line feedlines down from each end to a common point, where you have a relay or two to switch the feed and the terminating resistor. Then you can reverse it with a flip of the switch. Although transmit gain is the same as bidirectional, you can cut the noise by 3 dB.
Victor 4X6GP > On 14 Sep 2019, at 2:21, Fred Jensen <[hidden email]> wrote: > > Mike: Rhombics can be operated either terminated or unterminated. If unterminated, they are bi-directional with half the power in each lobe. If terminated, the resistor absorbs half the power in the reverse lobe. Either way, half your power goes the "wrong" way, either behind your desired direction or heats a big resistor. They have a very low radiation angle and a fairly narrow beamwidth which is why they're flame throwers and very common in military and commercial stations, particularly in the days of point-to-point radio circuits. V-beams, sometimes called Half-Rhombics are sort of likewise only broader azimuth patterns more suitable for maritime ship-shore telegraphy circuits. For ham applications, Google W6AM > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > >> On 9/13/2019 3:24 PM, Mike Markowski wrote: >> Can you expand on this, Ken, or if easier, a reference? I'm curious what tradeoffs are made. I used a rhombic at Ft. Monmouth, NJ before the Army base was closed in 2011, and used to boom into Europe and Russia. It was amazing. I also got copies of WWII manuals on rhombic construction while there. You know, just in case I became wealthy with tens of acres of land. :-) >> >> 73, >> Mike ab3ap > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by k6dgw
Just a question of phasing it properly. Of course it would be hard to do for multiple bands!
Victor 4X6GP > On 14 Sep 2019, at 4:56, Fred Jensen <[hidden email]> wrote: > > Feed the termination power back into the antenna? Conservation of energy? [:-) ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Jim Campbell
I completed my 2-meter WAC by working VK5MC on December 3, 1982. Chris was using
a rhombic, IIRC, 50 wavelengths on a leg and more-or-less fixed on his rising moon. I believe with some ropes he could "steer" one end to get a few minutes more on another couple of days a month of use. Otherwise it was a pretty short window. Modern Yagi designs blow these away. Wes N7WS ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Arliss
Yes, that came to mind here too. I figure that somebody will eventually plant beans and corn on the Bondville, IL site though.
Chuck KE9UW [hidden email] Sent from my iPad > On Sep 13, 2019, at 10:42 PM, Arliss <[hidden email]> wrote: > > Or even longer: > > https://4.bp.blogspot.com/-UkbdbLQ-ofI/V4CWpqwJ9SI/AAAAAAAAE-Q/YtV82_PGUqg3j77n0OyOxp0A1LaL1-LowCLcB/s1600/crop-stonehenge-stones-set3.jpg > > > 73, Arliss W7XU > > >> On 9/13/2019 10:15 PM, [hidden email] wrote: >> Hi Chuck, >> >> >> Its nearly impossible to hide those old Wullenweber arrays, even if they've >> been dismantled for nearly fifty years >> >> >> www.google.com/maps/search/bondville+rd,+scott,+il/@40.0492598,-88.3816964,440m/data=!3m1!1e3 >> >> >> 73 >> Frank >> W3LPL >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email]
Chuck, KE9UW
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In reply to this post by Vic Rosenthal
While I would love to have a rhombic, or multiple rhombics, it's not a
consideration for me. But I do have a 2 acre "semi-rural" lot, and approx. 400 x 150 feet clear space behind the house. We have an HOA with antenna restrictions, but I managed to get elected to the board and was subsequently able to convince my colleagues to change the rules just a bit. After establishing my coverage goals and analyzing different options for best use of that space (including available supports) and my resources, I decided on an Extended Double Zepp. It's oriented to give me maximum gain at 3.5 MHz in a North-South direction with NVIS properties (desired), and maximum gain in an East-West direction on 40 meters. On 30 meters, and to a lesser degree on 20 meters, it produces NE, SE, SW and NW lobes. It tunes to a very useable match on all bands, 160 thru 6 meters. I feed it with 600 ohm True Ladder Line from a hybrid (4:1 voltage/1:1 current) balun in the attic requiring only about 20 feet of coax to the KPA/KAT500 in the shack. In a box outside I have a balanced line lightning arrestor, and also a heavy duty knife switch for positive antenna grounding (I am admittedly paranoid about lightning ...). It theoretically produces 4.7 dbi gain on the major lobes, and serves my purposes very well on all bands. Prior to the HOA changes, I was limited to a G5RV Jr. in the attic. It worked fairly well, but nothing like this. I still use it as a backup during thunderstorms when the EDZ is disconnected. Lyn, WØLEN -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Vic Rosenthal Sent: Saturday, September 14, 2019 5:56 AM To: Elecraft Reflector Subject: Re: [Elecraft] Rhombic antenna "gain" Just bring 600 ohm open line feedlines down from each end to a common point, where you have a relay or two to switch the feed and the terminating resistor. Then you can reverse it with a flip of the switch. Although transmit gain is the same as bidirectional, you can cut the noise by 3 dB. Victor 4X6GP > On 14 Sep 2019, at 2:21, Fred Jensen <[hidden email]> wrote: > > Mike: Rhombics can be operated either terminated or unterminated. If unterminated, they are bi-directional with half the power in each lobe. If terminated, the resistor absorbs half the power in the reverse lobe. Either way, half your power goes the "wrong" way, either behind your desired direction or heats a big resistor. They have a very low radiation angle and a fairly narrow beamwidth which is why they're flame throwers and very common in military and commercial stations, particularly in the days of point-to-point radio circuits. V-beams, sometimes called Half-Rhombics are sort of likewise only broader azimuth patterns more suitable for maritime ship-shore telegraphy circuits. For ham applications, Google W6AM > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > >> On 9/13/2019 3:24 PM, Mike Markowski wrote: >> Can you expand on this, Ken, or if easier, a reference? I'm curious what tradeoffs are made. I used a rhombic at Ft. Monmouth, NJ before the Army base was closed in 2011, and used to boom into Europe and Russia. It was amazing. I also got copies of WWII manuals on rhombic construction while there. You know, just in case I became wealthy with tens of acres of land. :-) >> >> 73, >> Mike ab3ap > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Lyn,
Hopefully you do not trust that an antenna in the attic will not be susceptible to lightning. I would not use ANY antenna during a thunderstorm. Shut down the station and ground all feedlines. 73, Don W3FPR On 9/14/2019 8:27 AM, Lyn Norstad wrote: > > Prior to the HOA changes, I was limited to a G5RV Jr. in the attic. It > worked fairly well, but nothing like this. I still use it as a backup > during thunderstorms when the EDZ is disconnected. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by EricJ
I was a lowly 2nd Lieutenant at Ft Monmouth in 1968. I was going thru a
tropo scatter class. I used to love to drop in to K2USA in that wooden barracks building. I don't remember much except that it was waay cool to me. I wonder if there are any pictures of the place online? Dave K1WHS On 9/13/2019 11:17 PM, EricJ wrote: > Maybe the termination was changed in later years. I was permanently > assigned to K2USA from '63-'65 (not bad duty for a ham). We ran > thousands of phone patches to/from SE Asia on that rhombic and the 20m > monobander @ 90 feet. I used to break into QSOs between two local VKs > chatting via ground wave with that antenna. I was the only signal they > could hear. > > You probably knew Mike Reason. When I was there, he was a local kid > who used to hang out at the MARS station. Great guy, now SK. > > Eric KE6US > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Todd KH2TJ
Hi Todd,
Its not accurate to state that the Pusher FRD-13 CDAA is a " variant of the the FRD-10" CDAA. Their architectures are quite different and have little in common other than their circular shape. The FRD-13 relies on less effective (but much less expensive) analog RF phasing to develop its front-to-back ratio while the FRD-10 uses a massive (and extremely expensive) reflecting screen. Immediately after World War II, the Soviet Union built and deployed many dozens of Krug DF arrays, direct copies of the German Wullenweber DF array. Some of them are still in use and look almost exactly like the World War II Wullenweber arrays. www.thelivingmoon.com/45jack_files/04images/Krug/Odessa_I_PC030200_8965681.jpg 73 Frank W3LPL ----- Original Message ----- From: "Todd KH2TJ" <[hidden email]> To: [hidden email] Sent: Saturday, September 14, 2019 7:25:39 AM Subject: Re: [Elecraft] Rhombic antenna "gain" Correct. USN had FRD-10's and USAF/US Army had FLR-9's. Lesser know variant of the FRD-10 was called the "Pusher". We had one out on Diego Garcia. About half the size of the FRD-10 iffen I reall correctly. I spent almost 5 1/2 years working at the one at NSGD Guam. 73, Todd KH2TJ >Hi mike, >Wasn't Rota an FRD-10, not an FLR-9? >73 >Frank >W3LPL ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Monmouth pics - Rhombic antenna "gain"
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In reply to this post by David Olean
Dave,
I took some photos as the shut down was under way in 2011. I wish I had taken some sooner, even a week earlier. They're at: http://udel.edu/~mm/ham/monmouth 73, Mike ab3ap On Sat, Sep 14, 2019, 11:14 AM David Olean <[hidden email]> wrote: > I was a lowly 2nd Lieutenant at Ft Monmouth in 1968. I was going thru a > tropo scatter class. I used to love to drop in to K2USA in that wooden > barracks building. I don't remember much except that it was waay cool > to me. I wonder if there are any pictures of the place online? > > Dave K1WHS > > On 9/13/2019 11:17 PM, EricJ wrote: > > Maybe the termination was changed in later years. I was permanently > > assigned to K2USA from '63-'65 (not bad duty for a ham). We ran > > thousands of phone patches to/from SE Asia on that rhombic and the 20m > > monobander @ 90 feet. I used to break into QSOs between two local VKs > > chatting via ground wave with that antenna. I was the only signal they > > could hear. > > > > You probably knew Mike Reason. When I was there, he was a local kid > > who used to hang out at the MARS station. Great guy, now SK. > > > > Eric KE6US > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Monmouth pics - Rhombic antenna "gain"
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Hi Mike, Thank you so much. Those pictures are so great. I remember the inside of the building with all those "studios". Thanks for showing them. I love that Signal School podium too. I spent a summer at Ft Monmouth in a class with 16 officers learning all about the REL-2600 tropo system. All my instructors were civilians as I recall. It was a great experience. Dave K1WHS On 9/14/2019 4:53 PM, Mike Markowski wrote: > Dave, > > I took some photos as the shut down was under way in 2011. I wish I > had taken some sooner, even a week earlier. They're at: > > http://udel.edu/~mm/ham/monmouth > > 73, > Mike ab3ap > > On Sat, Sep 14, 2019, 11:14 AM David Olean <[hidden email] > <mailto:[hidden email]>> wrote: > > I was a lowly 2nd Lieutenant at Ft Monmouth in 1968. I was going > thru a > tropo scatter class. I used to love to drop in to K2USA in that > wooden > barracks building. I don't remember much except that it was waay > cool > to me. I wonder if there are any pictures of the place online? > > Dave K1WHS > > On 9/13/2019 11:17 PM, EricJ wrote: > > Maybe the termination was changed in later years. I was permanently > > assigned to K2USA from '63-'65 (not bad duty for a ham). We ran > > thousands of phone patches to/from SE Asia on that rhombic and > the 20m > > monobander @ 90 feet. I used to break into QSOs between two > local VKs > > chatting via ground wave with that antenna. I was the only > signal they > > could hear. > > > > You probably knew Mike Reason. When I was there, he was a local kid > > who used to hang out at the MARS station. Great guy, now SK. > > > > Eric KE6US > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > <mailto:[hidden email]> > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > <mailto:[hidden email]> > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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