[amsat-bb] ND9M/MM Op Sked (Partial): Tonight & Tomorrow (15 March GMT)

2011-03-14 Thread Clary, James T, Civilian
Here's a partial op sked for tonight's and tomorrow's passes and grids. I'm cutting it short to make the first pass on the list. More info later. Planned VO52 - 15/0245Z - DL26 FO29 - 15/1024Z - DL25 or DL35 (or both!) - we'll probably be in DL35 for an hour or less AO51 - 15/1048Z - DL35 or

[amsat-bb] Re: M-Squared Yagis

2011-03-14 Thread Stan, W1LE
Hello Dave, My Rohn towers use a flat top section, I wrap in a 3X loops ~ 12-15' of a flexible coax as the rotator loop. The loops are loosely layed in on the flat top plate. One end anchored with Tye wraps to the main tower and the other end anchored to the rotating mast, with another single l

[amsat-bb] Re: 432 PreAmp

2011-03-14 Thread Dave Webb KB1PVH
Jerry, I ran the same setup. You are good to go, no problem. Dave - KB1PVH Sent from my Verizon Wireless DROID X On Mar 14, 2011 9:08 PM, "Jerry" wrote: > I am considering placing a 432 preamp (ARR P432VDG) in the 432 line > coming from the splitter on my Arrow. Do I have a danger in the 2M > s

[amsat-bb] 432 PreAmp

2011-03-14 Thread Jerry
I am considering placing a 432 preamp (ARR P432VDG) in the 432 line coming from the splitter on my Arrow. Do I have a danger in the 2M signal overloading this preamp back through the 432 antenna on the Arrow? Hope I've composed this question so that it could be understood. Tnx for any ideas. J

[amsat-bb] M-Squared Yagis

2011-03-14 Thread Dave
Hi group- I'm installing my 2MCP22 and 436CP42 U/G antennas and find that the coax is hanging up on the Rohn tower sides near my G-5500 rotator plate. How are folks keeping the coax away from the tower sides and hanging up? Springs? Cable ties? I have hung it up twice and stalled the AZ/EL. I

[amsat-bb] QSO XE1-LU/Q on AO7

2011-03-14 Thread Luis Quintas
Ramon (XE1KK) and myself (LU6QI) made a QSO on AO7 in SSB Mode B at 11.12 UTC on March 14, 2011 during the orbit #66247. The distance between Ramon’s location (EK09JI) and mine (FF66TQ) is 6816.7 km. ___ Sent via AMSAT-BB@amsat.org. Opinions expressed ar

[amsat-bb] FASTRAC Separation!

2011-03-14 Thread Sebastian Muñoz
All, First of all I wanted to thank the HAM community all over the world for supporting our project, your support has been incredible and we really value. Today, after a few months of initial operations, we started one of the most exciting phases of our project by separating both of our girls so

[amsat-bb] Re: Using Preamps In Shack

2011-03-14 Thread Joe Leikhim
Bring the parts, cables plus connectors to the store when shopping. The biggest problem is cable bend radius. On 3/14/2011 4:39 PM, Jim Jerzycke wrote: > > Joe speaks wisdom when he says get a bigger one that you think you need. > I have a whole pile of those boxes in the garage because I thought

[amsat-bb] Re: Using Preamps In Shack

2011-03-14 Thread Jim Jerzycke
Joe speaks wisdom when he says get a bigger one that you think you need. I have a whole pile of those boxes in the garage because I thought they were "big enough" for the project I had intended to build in them. 73, Jim On 03/14/2011 08:13 PM, Joe Leikhim wrote: > Paul; > Check the electrical dep

[amsat-bb] Re: Using Preamps In Shack

2011-03-14 Thread Joe Leikhim
Paul; Check the electrical departments at Home Depot and Lowes for inexpensive plastic boxes made by Carlton. These are fully weatherproof boxes without any knockouts that are excellent for weatherproofing preamplifiers. You will probably need some type N bulkheads that have a long neck so tha

[amsat-bb] Re: AO-51 still cannot access

2011-03-14 Thread Scott
Hi Enso, The OZ7SAT system is set to use 1268.705 MHz for the uplink. The actual frequency will vary a little bit due to temperature variations (the radio and transverter is located outdoors) but this does not seem to have a big impact on the uplink. We have adjusted the modulation so the resultin

[amsat-bb] AO-51 still cannot access

2011-03-14 Thread Vincenzo Mone
Hi, Today at about 15:00 pm i had a good pass of AO-51 but as usual i could'nt get in. I've tried during the whole pass to tx on the uplink frequencies moving a bit up and down but nothing to do, i did not get any response. I have tried with two TNC with a TINY-2 and with a TNC3S but had the same

[amsat-bb] Re: Is it 100% impossible to work a satellite below the horizon?

2011-03-14 Thread Vince Fiscus, KB7ADL
At 07:13 AM 3/13/2011 -0700, wrote: >I seriously doubt that satellites using 2 meters and higher frequencies >for uplink/downlink would show much (if any) below the horizon capability. > >Bob NA2X It's possible to happen on 2 meters via satellite too. In the early 90's I submitted proposals f

[amsat-bb] Re: Using Preamps In Shack

2011-03-14 Thread i8cvs
- Original Message - From: "Edward R. Cole" To: "Paul Delaney - K6HR" ; Sent: Monday, March 14, 2011 7:54 AM Subject: [amsat-bb] Re: Using Preamps In Shack > Recently I lost one of my eme preamps on my tower and used a preamp > at the shack. My normal system NF = 0.76 dB. In the shack

[amsat-bb] Fair Lawn a Success!

2011-03-14 Thread Clint Bradford
All 10 questions - PLUS one extra - asked and answered. And as Principal Marcella took the stage, he announced the passing our of our NASA surveys to complete! Clint Bradford, K6LCS NASA / ARISS 909-241-7666 ___ Sent via AMSAT-BB@amsat.org. Opini

[amsat-bb] Is it 100% impossible to work a satellite belowthehorizon?

2011-03-14 Thread Ellis Foley
Return Mail to wa1...@yahoo.com Back in the late 70's I was working AO7 mostly on Mode A, two radios,same stacked 11's,and tri-bander for HF.  had few passes that were below my horizon,no problem for F2 downlink, but was able to get into it on 2m, with passive reflections off nearby MT Greyloc

[amsat-bb] National Science Week -Special Event Stations UK

2011-03-14 Thread GW1FKY
Hi all, Apologies for this very late notification. During this week events are taking place as part of the "National Science Week " and this years title is "Communication" - a very significant and key player especially in our modern day life. It is also a great opportunity to fly the flag for

[amsat-bb] Re: Using Preamps In Shack

2011-03-14 Thread Edward R. Cole
Paul, The main advantage of a preamp is increasing your sensitivity by lowering the noise figure of your receiving system. You lose some of that by locating the preamp in the shack. Any coax loss between the preamp and antenna adds directly to the overall NF: 80-foot of LMR-400 is 1.2 dB l

[amsat-bb] ND9M/MM Op Sked: 14 March

2011-03-14 Thread Clary, James T, Civilian
Today's departure started off with a disappointing run through DM02 when I couldn't hear AO27 well at all. The satellite only got up to 6 degrees at my QTH, but I've worked that satellite a lot of times at lower elevations, so I really couldn't figure out why I had such difficulty. The next pass wa