That is great Eric. I have connectors for the run(s). John----- Original Message ----- From: "Eric Lemmon" <wb6fly@xxxxxxxxxxx>
To: <sarcmembers@xxxxxxxxxxxxx> Sent: Sunday, May 10, 2009 9:22 AM Subject: [sarcmembers] Re: SARC Tower and Dish move...
John, We have plenty of 9914- the new stuff we got from DRMO- to add more feedlines. I have a water-cooled core drill to make some additionalpenetrations, not only on the west side for the dish system, but also a fewmore into the radio room and the workshop. I am awaiting delivery of a special adapter to connect a 2.5" core drill to my water injection swivel. It should be delivered within a week. 73, Eric Lemmon WB6FLY -----Original Message----- From: sarcmembers-bounce@xxxxxxxxxxxxx [mailto:sarcmembers-bounce@xxxxxxxxxxxxx] On Behalf Of John Maetta Sent: Sunday, May 10, 2009 9:10 AM To: sarcmembers@xxxxxxxxxxxxx Subject: [sarcmembers] Re: SARC Tower and Dish move... I agree with John P.'s assessment and propose the following:In an effort to get the SARC on the 6 meter band, I will donate a 5 element50MHz yagi to install on the portable roof tower. Along with that, I will donate a Cushcraft 13B2 144MHz yagi for the portable roof tower. We can troubleshoot the log periodic at our leisure, and reinstall it if decided. I will have a day or so over the Memorial Day weekend and will try to get the two antennas (50Mhz and 144MHz) mounted and tested. Hopefully, I can have it ready and use the station on 50MHz during the June VHF contest. If someone has a 220Mhz yagi, now would be a good time to get it mounted too. Does the SARC have enough 9913 or equivalent to make another run or two up to the portable tower? Is the radio room penetration have enough room for another coax or two? In addition, we noted that SARC's the horizontal 144MHz, on coax 'B' exhibited 2.5:1 SWR at 144.200MHz. Something else to troubleshoot in the future. 73 John----- Original Message ----- From: jportune@xxxxxxxTo: sarcmembers@xxxxxxxxxxxxx Sent: Sunday, May 10, 2009 8:30 AM Subject: [sarcmembers] Re: SARC Tower and Dish move... My phone is 805-406-6176. But on a conventional SWR bridge you should not be getting high SWR. So if you are, you do have a problem which is not due to the basic design of the antenna. Other than that I really do not have any other suggestion. Call if you wish, though. John W6NBC----- Original Message ----- From: george bernard <mailto:gbernard@xxxxxxxxx>To: sarcmembers@xxxxxxxxxxxxx Sent: Sunday, May 10, 2009 8:26 AM Subject: [sarcmembers] Re: SARC Tower and Dish move... john, i think you are correct. can you call me on homefone? 805-688-6324 and we can discuss what to do about this $1500 antenna?how do we use it? do we just have to tolerate the high swr? george santa barbara, ca web page is www.balanceindustries.com for my company cell 818-370-9407 ________________________________ From: jportune@xxxxxxx Sent: Sunday, May 10, 2009 8:22 AM To: sarcmembers@xxxxxxxxxxxxx Subject: [sarcmembers] Re: SARC Tower and Dish move... Rember basic radio theory. A log-periodic is basically aNON-resonant antenna. So "some" instruments may not see it correctly. But on a basic SWR bridge is should show low SWR on any requency within its range.----- Original Message ----- From: george bernard <mailto:gbernard@xxxxxxxxx>To: sarcmembers@xxxxxxxxxxxxx Sent: Sunday, May 10, 2009 8:09 AM Subject: [sarcmembers] Re: SARC Tower and Dish move... john, do you think that a log periodic antenna might not resonate on any ham bands? it is covering 50-1300 mcs so maybe it doesnt dip like we expected it to on 144.2? perhaps i should just call ted henry at hrc and purchase a 15 element yagefor that tower/rotator and call it quits with the log periodic? it worked fine for me in goleta on six and two meters and also on 432.12 ssb. thank you for donating the use of your 70 amps for this rig. we need to tell allmembers not to run power up past 300 watts as you recommend and also how do you want to proceed on the landwehr preamp which is in the workshop area? btw i got the ultrasonic bird repeller installed in my airplane hangar at smx airport yesterday. it is made by Bird-X.com company of chicago, cost was only $249. regards, george bernard w6nre PS: the photo of the explorer sheriff scouts who are using my donated "black box uhf radios" on 460.275 and .325 were useful by visiting police officers from other jurisdistricts working thefire. sheriff brown allowed us to program channels 1-7 to the same freqs asthe regular motorolas which his peole carry. i bought 24 of them and a computer to program the freqs. channels 8-16 are gmrs channels for the kids to talk witheach other. these are only $150 each so if they fail we delete the serialnumber and trash the radio. if one gets lost we dont worry about it. santa barbara, ca web page is www.balanceindustries.com for my company cell 818-370-9407 ________________________________ From: John Maetta Sent: Sunday, May 10, 2009 7:22 AM To: sarcmembers@xxxxxxxxxxxxx Subject: [sarcmembers] SARC Tower and Dish move... All, Yesterday, with the help of Bob, W6RFH, we were ableto reposition the EME dish and portable tower. The new locations allow muchshorter control and hardline runs to the operating positions. My special thanks to Bob, for his expertise in delicately moving of the fully loaded EME tower. www.n6vmo.com/arpics/SARCTowerandDishMoveMay92009/index.html I have loaned SARC the use of my Astron RS-70 powersupply to power the TE Systems 144MHz amplifier. It is modified to power and provide cooling air to the amplifier. Later, W6NRE arrived and we discovered duringtesting, that the log periodic antenna exhibited high SWR on 144.200MHz Wealso noted that the antenna was not resonate on any amateur band or frequencies in the VHF range. The log periodic antenna was taken down for further troubleshooting and the tower is currently laying flat on the SARC roof. The 1.29GHz amplifer has new cooling water and tested to 200 watts output, it should be ready for 1.2Ghz EME operation by June 6th. Hopefully, after the monthly meeting, it can be successfully demonstrated by providing our first 1296MHz EME contact. This past week, I noted an ad on QTH.com for a almost new 12' parabolic TVRO dish. The dish is for sale and located inSolvang. I emailed the seller and asked if he had not sold it, would he beinterested in donating it to the club. He happily agreed. If it becomes available, and meets with the board's approval, along with focal and mounting requirements, I will meet with him to transport it to the club,swap it out with the current 10' dish. The 10' dish will then leave for thedump, unless a club member wants it. The new dish will provide ~50% more reflective surface area than the 10' dish. This extra surface area will add ~2.8dB ofgain, effectively almost doubling the ERP and adding ~1/2 S-Unit of receivedsignal strength. 73 John _______________________________________________ You have received this because you are subscribed to the Satellite Amateur Radio Club Members Mailing ListTo post on the mailing list, simply send email to sarcmembers@xxxxxxxxxxxxxx This mailing list willonly accept email from subscribed members so SPAMMERS will not get your email addressTo unsubscribe, send an email to sarcmembers-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field OR by logging into the Web interface at: //www.freelists.org/cgi-bin/lsg2.cgi
_______________________________________________ You have received this because you are subscribed to the Satellite Amateur Radio Club Members Mailing List To post on the mailing list, simply send email to sarcmembers@xxxxxxxxxxxxxx This mailing list will only accept email from subscribed members so SPAMMERS will not get your email address To unsubscribe, send an email to sarcmembers-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field OR by logging into the Web interface at: //www.freelists.org/cgi-bin/lsg2.cgi