Re: [amsat-bb] Digital Satellites Question

2014-07-27 Thread Phil Karn
On 07/22/2014 08:50 AM, Douglas Phelps wrote: And, in a related question, wouldn't more proccessing demand more power from the batteries/solar panels? I know my PC cetainly draws a lot more power when the CPO is working hard. Not really. The biggest load in a communications satellite, or

Re: [amsat-bb] Inclusion (satcoms?)

2014-07-27 Thread Phil Karn
On 07/22/2014 11:05 AM, Robert Bruninga wrote: The value of ham radio is providing communications where other systems cannot. And of course, playing with toys just for fun. I'd flip that around. With the Internet, mobile phones and other ubiquitous communications, about the sole reason left

Re: [amsat-bb] AMSAT where are we going for what it is worth.

2014-07-27 Thread Phil Karn
On 07/22/2014 11:19 AM, Bryce Salmi wrote: All this requires much much much more power than a 1U satellite is currently capable of producing. At least for always on type operating. We'll get there eventually. Only if you keep the analog modes since they hog nearly all the available power and

[amsat-bb] Yaesu G-5500 AZ/EL rotor for sale

2014-07-27 Thread John / NS1Z
This rotor is less than a year old. It works perfectly and is in very good condition. Works with any of the ST series interfaces (ST-1 and ST-3). Selling the rotor, control box, Satellite serial port interfaces ST-3 and SAT668. It really is Plug and Play $450 plus shipping Thanks

Re: [amsat-bb] Inclusion (satcoms?)

2014-07-27 Thread Diane Bruce
On Sat, Jul 26, 2014 at 11:31:51PM -0700, Phil Karn wrote: On 07/22/2014 11:05 AM, Robert Bruninga wrote: The value of ham radio is providing communications where other systems cannot. And of course, playing with toys just for fun. I'd flip that around. With the Internet, mobile phones

Re: [amsat-bb] FM birds

2014-07-27 Thread Diane Bruce
On Sat, Jul 26, 2014 at 10:24:15PM -0700, Phil Karn wrote: On 07/22/2014 07:49 AM, wa4...@comcast.net wrote: SSB/CW birds are the only way to go and if you build it they will come . Think about what it would be like to tune for Doppler while working SSB through a LEO satellite on

Re: [amsat-bb] FM birds

2014-07-27 Thread Jim Sanford
Tracking doppler on 2m and 70cm was hard enough at field day. I like 2GHz and up, but do not want to even think about the doppler. In the KITSAT days, I used an IC-751 as the receive IF. It has a true FM detector, with discriminator centered at 0-volts. It steps in 1 or 10 Hz increments,

Re: [amsat-bb] FM birds

2014-07-27 Thread Gus
On 07/27/2014 12:57 PM, Jim Sanford wrote: The other thing that is exciting about going digital, is the idea of CAT-5 (or fiber) to the box at the antenna, not coax. Yep. Rig at the mast-head, fiber (RF noise-immune) to the shack, and a control head at the operators position. Or a

Re: [amsat-bb] I want this. I want that. Here comes another FM LEO sat.

2014-07-27 Thread Floyd Rodgers
I would also vote AO40 was not to complex, it was failed by an accident. Not wishing to bring up bad memories, but two questions: Did anything other than the plug incident happen? (In other words, did any systems fail before the explosion?) Was there a backup bird built of the same design that

Re: [amsat-bb] I want this. I want that. Here comes another FM LEO sat.

2014-07-27 Thread i8cvs
- Original Message - From: Floyd Rodgers kc5...@swbell.net To: bstguitar...@gmail.com; Phil Karn k...@ka9q.net Cc: amsat-bb@amsat.org Sent: Sunday, July 27, 2014 8:17 PM Subject: Re: [amsat-bb] I want this. I want that. Here comes another FM LEO sat. I would also vote AO40 was not to

Re: [amsat-bb] I want this. I want that. Here comes another FM LEO sat.

2014-07-27 Thread Andre
Op 27-07-14 om 20:17 schreef Floyd Rodgers: Was there a backup bird built of the same design that just might be flyable if we could find a ride? Not a backup for phase 3d but a satelite with simular spaceframe and capabiletie to get in the same orbit, phase 3e is capable of being flight test

[amsat-bb] LituanicaSAT-1 status update

2014-07-27 Thread Vytenis Buzas
Dear friends, FM transponder is OFF, it's mission is completed, thank you for all the good responses. Based on this there will be more projects in the future making benefit for HAM people of the World. Currently only telemetry packets are to transmit data every 15 seconds. On-board temperature is

[amsat-bb] CN88 on CW today

2014-07-27 Thread wa7...@frontier.com
I will be on FO-29, Mode CW on the 0048Z (July 28) and 0234Z passes, mode CW. Looking for some cw contacts. . 73'...Ed  WA7ETH ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the