June 2011 - AMSAT-BB - mailman.amsat.org

Re: Fixed! Re: Landwehr 70cm preamp device
by G. Beat 02 Jun '11

02 Jun '11

FYI, parts for the Landwehr pre-amps Ted at Radio DAN still carries replacement Mitsubishi MGF1402 GaAsFET (discontinued) http://www.radiodan.com/ted_stuff/landwehr.htm RF Parts lists the Mitsubishi MGF series MGF1402 - was listed as $18.95 in 2007, currently (2011) you need to Call for Price. http://www.rfparts.com/transistors_2SKand3SK.html#bf Check with K0KN ... from an earlier AMSAT-BB posting -- he may have extra ! http://www.amsat.org/amsat/archive/amsat-bb/200701/msg00021.html PC Electronics carried the part in 2007, but they may have sold their remaining stock. http://www.hamtv.com/specials.html GH Engineering (UK) http://www.ghengineering.co.uk/prices.htm#Mitsubishi Greg w9gb ==== Date: Thu, 2 Jun 2011 08:59:54 -0500 (CDT) From: n0jy Subject: [amsat-bb] Re: Fixed! Re: Landwehr 70cm preamp device question? To: "Mark L. Hammond" Cc: K5OE I'm glad you shared this all here Mark, I have a 2M Landwehr that's been cranking along since 1993 or so, I've never looked inside but this thread is something I'll keep in case it gets flaky on me. 73, Jerry N0JY

1 0

Fm Sats Uk
by mm0kjg 02 Jun '11

02 Jun '11

Hello there. Can anyone tell me if the Fm sat's have been active over Uk and Europe . Reason am asking is that I have not heard anything for day's only the Ssb bird's. Cheers Kev MM0KJG

3 2

Fwd: [funcube] Order your FUNcube Dongle Pro-Tuesday 31 May at 21:00UTC.
by Mark L. Hammond 02 Jun '11

02 Jun '11

Miss out on the last batch of Funcube Dongles? Here is the next change to get one! 73, Mark N8MH Date: Fri, 27 May 2011 11:57:09 -0000 >Subject: [funcube] Order your FUNcube Dongle Pro-Tuesday 31 May at 21:00UTC. >Reply-To: funcube(a)yahoogroups.co.uk > > > >Order your FUNcube Dongle Pro <http://www.funcubedongle.com/?page_id=286>http://www.funcubedongle.com/?page_id=286 >Folks, > >The next sale is confirmed to be on Tuesday 31 May at 21:00UTC. > >Please take time to check that your delivery address is correct in Paypal! > >Please also check your delivery zone! > >Please note that Fedex will not ship to PO Boxes! >

6 7

AO-51 over Hawaii
by Robert Smith 02 Jun '11

02 Jun '11

ALOHA Nothing heard from AO-51 on 145.150 up, 435.880 down (hope those are the right freqs). AO-51 was coming out of eclipse having crossed over the south pacific. High pass. 73 robert, NH7WN Honolulu

2 1

w1w this weekend
by Rodney Waln 02 Jun '11

02 Jun '11

kc0zhf will be operating satellite's as w1w special events as will others that are doing HF contacts, for the Wyoming state convention good chance to get WY and DN71 if you need them, Rodney kc0zhf VP shywy ARC WY amsat area coordinator

1 0

Question about duplexers/diplexers
by Mark Lunday 02 Jun '11

02 Jun '11

I want to use a single coax for three rigs, feeding to three antennas. Rig 1 = 6 meters Rig 2 = 2 meters Rig 3 = 70 cm Each has its own antenna at the remote tower. Question #1: I should use a triplexer at the shack where the three antennas combine to the single coax, and a triplexer at the antenna where the three antennas are located. Correct? Question #2: any recommendations on which is best? I was looking at the Comet CFX5140 Question #3: can I run 12V through it to power my mast-mount preamps at the tower? Mark Lunday, WD4ELG Greensboro, NC FM06be wd4elg(a)arrl.net http://wd4elg.blogspot.com http://wd4elg.net

1 0

Show Low AZ hamfest on Saturday (4 June)
by Patrick STODDARD (WD9EWK/VA7EWK) 02 Jun '11

02 Jun '11

Hi! Just as I got back from Australia a few days ago and have been back to the office, I will be at another hamfest on Saturday morning. I will be at the White Mountain Hamfest in Show Low, Arizona. The hamfest is at the Show Low campus of Northland Pioneer College along Deuce of Clubs Avenue, hosted by the Kachina Amateur Radio Club. More information about the hamfest is available at: http://www.whitemountainhamfest.com/ WD9EWK will be on various satellite passes throughout the hamfest, which is officially slated to run from 7am to 1pm (1400-2000 UTC). If I can get into the hamfest site earlier, I will try to work passes starting around 1300 UTC. Please call WD9EWK if you hear me on the air. The hamfest is in grid DM44xf. After the hamfest, I may make a short drive to the DM44/DM54 grid boundary very close to Show Low for the afternoon and maybe early evening passes. Depending on when everyone starts shutting down at the hamfest, I may try for a spot north of the hamfest along I-40 and look to operate from the DM54/DM55 boundary (a location I worked from a couple of years ago). Regardless of where I end up for the afternoon, I will return home Saturday evening. As with my other hamfests and road trips, I will be happy to confirm QSOs made with WD9EWK. No need to first send me a QSL card; just an e-mail with the QSO details will suffice. I will also upload all QSOs to Logbook of the World. 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/

1 0

Museum Ships Weekend
by Rick Tejera 02 Jun '11

02 Jun '11

All, This weekend, I'll be operating with the Thunderbird Amateur radio Club from the anchor & Signal mast of the USS Arizona during Museum Ships weekend. While most of my operating will be on Sunday on HF, I hope to be able to work a pass or two on the birds. Not sure what ones but listen for me, I'll be operating under the club's call W7TBC from grid DM33wk. I'll try to post a list of passes as the day draws nearer. For more info on Ships weekend: http://www.nj2bb.org/museum/ Clear Skies Rick Tejera Saguaro Astronomy Club Phoenix, Arizona <http://www.saguaroastro.org/> www.saguaroastro.org saguaroastro(a)cox.net K7TEJ, AMSAT 38452

1 0

What Astronauts Photograph
by Clint Bradford 01 Jun '11

01 Jun '11

This high definition short is a fascinating document. Narrated by NASA's Dr. Justin Wilkinson, it shows a tour of planet Earth as seen by astronauts, explaining what are the places that they first focus on while in orbit. http://www.youtube.com/watch?v=rj18UQjPpGA Clint Bradford clintbradford(a)mac.com

2 1

Re: G5500 change voltage supply
by i8cvs 01 Jun '11

01 Jun '11

Hi, Apologise ! I was wrong and please amend my previous message with with the following one 73" de i8CVS Domenico ----- Original Message ----- From: "i8cvs" <domenico.i8cvs(a)tin.it> To: "Bill Dzurilla" <billdz.geo(a)yahoo.com>; "Amsat - BBs" <amsat-bb(a)amsat.org> Cc: <ea4cyq(a)amsat.org> Sent: Wednesday, June 01, 2011 10:13 PM Subject: Re: [amsat-bb] Re: G5500 change voltage supply > Hi Bill, NZ5N > > I was looking at the schematic diagram > http://www.hamcity.com/store/pc/catalog/pdf/220vconversion.pdf > > As I suspected the transformer has 4 wires coming off from the > primary windings. > > In my opinion the transformer has two identical primary windings > to work in parallel from 100 to 117 volt and in series with 220 volt > > For 100 or 117 volt jump terminal 0 to terminal 2 and terminal 1 > to terminal 3 so that both primary windings are in parallel and in phase > after that connect the 117 volt line to terminals 0 and 1 or 2 and 3 > > For 220 volt jump terminal 1 to terminal 2 and connect the 220 volt > line to terminals 0 and 3 > > 73" de > > i8CVS Domenico > > ----- Original Message ----- > From: "Bill Dzurilla" <billdz.geo(a)yahoo.com> > To: <amsat-bb(a)amsat.org> > Cc: <ea4cyq(a)amsat.org> > Sent: Wednesday, June 01, 2011 6:53 PM > Subject: [amsat-bb] Re: G5500 change voltage supply > > > Here is the mod to change Yaesu rotors to 220v: > http://www.hamcity.com/store/pc/catalog/pdf/220vconversion.pdf > > But perhaps yours has a different transformer if it uses pin 3 for 117v. In > the mod, pins 0 and 3 are for 220v. > > 73, Bill NZ5N > > > Subject: [amsat-bb] G5500 change voltage supply > > > > I have purchased a G5500. The control box have a > > 117Vac label in the real > > panel. I opened it and a wire is connected through > > the fuse to the terminal > > number 3 of the KT-30 transformer and the other wire > > through the main switch > > to the terminal number 1 of the KT-30 transformer. > > > > I am wondering how I should connect it to work with 220Vac > > in Europe. > > > > Thanks in advance. ea4cyq(a)amsat.org > > > _______________________________________________ > Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb >

1 0