- AMSAT-BB - mailman.amsat.org

Correction
by Edward Cole 14 Mar '07

14 Mar '07

> I was fortunate to have a few hams help me on my table when they > saw I needed some help. KK7YY(sk) flew to Alaska a couple years > running and did the Leo demos for me as well as helping at the table. Sorry, my memory failed: I meant Jerry, KK5YY. If there is a KK7YY, my apology! 73, Ed - KL7UW ====================================== BP40IQ 50-MHz - 10-GHz www.kl7uw.com 144-EME: FT-847, mgf-1801, 4x-xpol-20, 185w DUBUS Magazine USA Rep dubususa(a)hotmail.com ======================================

1 0

ARISS Mission Viejo Post Contact Media
by Matt Bennett 13 Mar '07

13 Mar '07

Thanks to many of you who tuned in on Friday morning to listen to Mission Viejo's second attempt to contact the Commander Michael Lopez-Alegria on the International Space Station! The direct connection to the station was established at 7:23 AM PST and lasted for seven full minutes before the station dropped behind our local Saddleback Mountains. Since the event, we have updated the website to include new photos, an MP3 recording of the contact, video recordings straight from the contact room, and a link to the article written about it in the Orange County Register last Saturday. Please take some time to view this new media at: http://ucisat.eng.uci.edu/uplink Thank you all very much for your interest and support in this exciting event! We appreciate it very much. Best regards, Matt Bennett KF6RTB K6UCI Control Operator for Mission Viejo / ISS Contact --------------------------------- It's here! Your new message! Get new email alerts with the free Yahoo! Toolbar.

1 0

S band rx system for sale
by w7lrd＠comcast.net 13 Mar '07

13 Mar '07

Hello I put together an S band system for a friend. He changed his mind, tried to sell it at a flea market, no go. I will try this list before ebay. It is a 24x19 inch dish, 5 1/2 turn helix feed, 3731aa downconverter with power supply, and mounting brackets to fit over elevation rotor. Pictures and more details upon request. 73 Bob W7LRD Seattle

1 0

Re: An automation system that works (so far)
by Wayne Estes 13 Mar '07

13 Mar '07

RoD KD0XX wrote: Just wanted to give everyone a heads up on this. You DON'T have to buy an expensive satellite tracking program such as Nova or whatever, to have automation. Wayne replies: That's good to know. But I encourage people to purchase SatPC32 because the author, Erich DK1TB, donated his work to AMSAT-NA, AMSAT-DL, and AMSAT-UK. SatPC32 sales help fund amateur satellite programs. Perhaps the name should change after Erich gets new I/O drivers to make SatPC32 compatible with Windows Vista 64. Wayne Estes W9AE Oakland, Oregon, USA, CN83ik

2 1

W6GMT/5
by John W Lee 13 Mar '07

13 Mar '07

OK Boys, W6GMT/5 will be on AO-51 tonight from DM84 in New Mexico. He was on AO-27 this afternoon. 73, John K6YK

1 0

Icom CI-V question - 271/471 with Piexx board
by Jonny 290 13 Mar '07

13 Mar '07

I'm looking at buying a pair of Piexx computer interface boards to put in Icom 271 and 471 radios. I'm going to want to control these radios with the WiSP DDE client(I think, suggest another if there's a better one). It does not have an "Icom 751" option on the radio dropdown box, which is normally what one would use with this board. However, it does have a field to manually input the address. Here's my question. Can I select "Icom 275" or any other similar type of radio in the WiSP DDE box and then set the address manually, to my radios' addresses? From what I understand, the only radio-specific information in a CI-V command is the address value, and since I'll be sending legal frequencies to these radios, I'm thinking this will work...but want to make sure before I spend $300 on interfaces. The PIexx interfaces appear to be standard CI-V interface devices, usually set up to be addressed at $20 for 271's and $22 for 471's. 73, Matt

2 1

Odyssey Siren A success
by Robert McGwier 13 Mar '07

13 Mar '07

We had a complete breakthrough on the Odyssey Siren in the past two weeks. It will be used in Suitsat 2, in a terrestrial linear repeater experiment by Viktor Kudielka OE1VKW and friends, who supported its development, and we are already leaping all over the place to applications. Frank Brickle and I will be doing our SDR code on it over the next several days. The board as shown in the schematic needs some modifications to fix the 3 - ish volt power supply for the Codec and a modified oscillator circuit but we are certain it will all work now. On the 10.7 MHz IF, I measured 0 dBm max into a 50 ohm load and less than -120 dBm MDS and > 80 dB dynamic range. This is with a BOM of < $50 in parts and about a $20 dsp pic chip! Yesterday in Rick's lab, with W2GPS, K3IO, we made the above measurements, hacked on code and turn the thing into a bent pipe transponder. I also did the hilbert transform to make it an inverting transponder. It all worked perfectly. http://www.cnssys.com/~w2gps/amsat_files/suitsat/ has detected audio in an SDR-IQ SDR as well as captured IF from the SDR-IQ of the transponder. We have to balanced for image and do DC offset correction but the thing works and sounds great as you can hear for yourself! 73's Bob N4HY -- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair "Taking fun as simply fun and earnestness in earnest shows how thoroughly thou none of the two discernest." - Piet Hine

3 2

Re: [hpsdr-dev] Odyssey Siren A success
by Christopher T. Day 13 Mar '07

13 Mar '07

Cool! When do we all get boards for our PCR-100's? Chris - AE6VK -----Original Message----- From: Robert McGwier [mailto:[email protected]] Sent: Tuesday, March 13, 2007 2:36 PM To: High Performance Software Defined Radio Discussion List Cc: amsat bb Subject: [hpsdr-dev] Odyssey Siren A success We had a complete breakthrough on the Odyssey Siren in the past two weeks. It will be used in Suitsat 2, in a terrestrial linear repeater experiment by Viktor Kudielka OE1VKW and friends, who supported its development, and we are already leaping all over the place to applications. Frank Brickle and I will be doing our SDR code on it over the next several days. The board as shown in the schematic needs some modifications to fix the 3 - ish volt power supply for the Codec and a modified oscillator circuit but we are certain it will all work now. On the 10.7 MHz IF, I measured 0 dBm max into a 50 ohm load and less than -120 dBm MDS and > 80 dB dynamic range. This is with a BOM of < $50 in parts and about a $20 dsp pic chip! Yesterday in Rick's lab, with W2GPS, K3IO, we made the above measurements, hacked on code and turn the thing into a bent pipe transponder. I also did the hilbert transform to make it an inverting transponder. It all worked perfectly. http://www.cnssys.com/~w2gps/amsat_files/suitsat/ has detected audio in an SDR-IQ SDR as well as captured IF from the SDR-IQ of the transponder. We have to balanced for image and do DC offset correction but the thing works and sounds great as you can hear for yourself! 73's Bob N4HY -- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair "Taking fun as simply fun and earnestness in earnest shows how thoroughly thou none of the two discernest." - Piet Hine _______________________________________________ hpsdr-dev mailing list hpsdr-dev(a)lists.tapr.org https://lists.tapr.org/cgi-bin/mailman/listinfo/hpsdr-dev

1 0

Re: [amsat-dc] Timonium
by MARTHA SARAGOVITZ 13 Mar '07

13 Mar '07

Scott - Thanks so much for volunteering. To date, we have ONE volunteer, Jeff Griffin, KB2M from NJ!!! Where are the locals? I will be sending Jeff a box for the hamfest. Why don't you contact him directly (kb2m(a)comcast.net). Again, many thanks for your help. 73- Martha ----- Original Message ----- rom: "n3asa(a)arrl.net" <shstevens1(a)comcast.net> To: "MARTHA SARAGOVITZ" <amsat(a)verizon.net> Sent: Tuesday, March 13, 2007 1:40 PM Subject: Re: [amsat-dc] Timonium > Hi Martha, > > What do you need? What hours? Will materials already be in place? > > Scott > > -------------- Original message -------------- > From: "MARTHA SARAGOVITZ" <amsat(a)verizon.net> > >> It now appears we have NO ONE to handle Timonium on March 31st and April >> 1st. Would someone PLEASE volunteer to "man" the booth on Saturday? 73- >> Martha >> >> >> _______________________________________________ >> Via the AMSAT-DC mailing list courtesy of AMSAT-NA >> AMSAT-DC(a)amsat.org >> http://amsat.org/mailman/listinfo/amsat-dc

1 0

RAFT and ANDE OPS
by Bob Bruninga 13 Mar '07

13 Mar '07

RAFT did a reset over the weekend, but was restored today by Ian ZL1AOX. RAFT text-to-speech voice should again be operational. But RAFT is overcharging in the sun and needs more use. If we can keep her loaded on the sunny side, then she WILL work. But without a heavy load, the batteries overcharge and the higher voltage causes the receiver to be deaf. So we are going to change the operating authority to include unattended beacons VIA RAFT. Please include in your beacon your power, antenna gain and beacon rate. UNPROTO paths VIA ARISS, APRSAT, RELAY and WIDE should work. Also, A CONNECT to RAFT will turn on the voice synthesizer and then it will speak any APRS messages sent to TALK. ANDE will also digipeat these paths if in view too. Enjoy! Bob, WB4APR

1 0