[amsat-bb] VU2MKP Silent Key
I have just got the very sad news from VU2RCR Chandru, that our friend Robert Kohli VU2MKP became a silent key in Bangalore just a few minutes ago in a hospital where he had been admitted a few days ago. For those of us fortunate people who knew Robert, he was a truly remarkable individual who in spite of his disabilities managed to do many things we would be happy to just attempt. He was an example of what can be done in spite of such severe handicaps. Being paralyzed from the neck down, he could only use his head and mouth to control his motorized wheel chair and it was a common sight for him to drive around the streets of Bangalore, visiting friends, going to restaurants and even shopping for radio components for his radio projects. He was an avid radio amateur, controlling the radio and associated equipment, all with plastic rods held in his mouth. He operated the computer also in this fashion and even made computer drawings on antenna designs etc which he shared with friends- my satellite antennae were home brewed from drawings he sent me. He was a keen DXer and had friends all over the world, on HF and satellites also. When AO 40 was operational he made several hundreds of contacts. Robert was Life member of ARSI and took an active part in all activities. He attended several ham fests and knew many, many hams all over VU and the rest of the world. He had recently constructed a home for himself in Bangalore in which the shack was on the first floor and had made a ramp from the ground floor to use his wheel chair to go to the first floor, so keen was he on amateur radio. Ham radio has lost a great operator who guided many hams and was a source of inspiration to many of us. - we will miss you Robert. May his soul rest in eternal peace Gopal VU2GMN Gopal Madhavan Shreyas Apartments 128 (old 63) Greenways Road R A Puram Chennai- 600 028, India Tel: +91 44 2493 7724/ 42303129 Mob: +91 94440 18452 E-mail: gopal.madha...@gmail.com ___ Sent via amsat...@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
[amsat-bb] VU2MKP Silent Key
I have just got the very sad news from VU2RCR Chandru, that our friend Robert Kohli VU2MKP became a silent key in Bangalore just a few minutes ago in a hospital where he had been admitted a few days ago. For those of us fortunate people who knew Robert, he was a truly remarkable individual who in spite of his disabilities managed to do many things we would be happy to just attempt. He was an example of what can be done in spite of such severe handicaps. Being paralyzed from the neck down, he could only use his head and mouth to control his motorized wheel chair and it was a common sight for him to drive around the streets of Bangalore, visiting friends, going to restaurants and even shopping for radio components for his radio projects. He was an avid radio amateur, controlling the radio and associated equipment, all with plastic rods held in his mouth. He operated the computer also in this fashion and even made computer drawings on antenna designs etc which he shared with friends- my satellite antennae were home brewed from drawings he sent me. He was a keen DXer and had friends all over the world, on HF and satellites also. When AO 40 was operational he made several hundreds of contacts. Robert was Life member of ARSI and took an active part in all activities. He attended several ham fests and knew many, many hams all over VU and the rest of the world. He had recently constructed a home for himself in Bangalore in which the shack was on the first floor and had made a ramp from the ground floor to use his wheel chair to go to the first floor, so keen was he on amateur radio. Ham radio has lost a great operator who guided many hams and was a source of inspiration to many of us. - we will miss you Robert. May his soul rest in eternal peace Gopal VU2GMN Gopal Madhavan Shreyas Apartments 128 (old 63) Greenways Road R A Puram Chennai- 600 028, India Tel: +91 44 2493 7724/ 42303129 Mob: +91 94440 18452 E-mail: gopal.madha...@gmail.com ___ Sent via amsat...@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
[amsat-bb] Re: [VUHams] VU2MKP Silent Key
It is a shocking and a very sad news. It is a bit difficult for me to accept that OT Robert is no more with us. He was truly an inspiring, humble and a fine human being. His technical knowledge is par with excellence. Rather, it is difficult to express in words about him. We really lost a man with a strong determination and a man who stood as an inspiration to us forever. I along with my family and club members express our Heart felt condolences to the bereaved family. May his Soul Rest in Peace. We miss you Robert. Mani, VU2WMY Secretary Station-In-Charge Upagrah Amateur Radio Club VU2URC ISRO Satellite Centre Airport Road, Bangalore-560 017. Phone:(O)91-80-2508 2054/2192/2537 Mobile: 91-80-98803 41456 E-mail ID: w...@isac.gov.in vu2wmy_m...@yahoo.com isroh...@yahoo.com Quoting Gopal Madhavan gopal.madha...@gmail.com: I have just got the very sad news from VU2RCR Chandru, that our friend Robert Kohli VU2MKP became a silent key in Bangalore just a few minutes ago in a hospital where he had been admitted a few days ago. For those of us fortunate people who knew Robert, he was a truly remarkable individual who in spite of his disabilities managed to do many things we would be happy to just attempt. He was an example of what can be done in spite of such severe handicaps. Being paralyzed from the neck down, he could only use his head and mouth to control his motorized wheel chair and it was a common sight for him to drive around the streets of Bangalore, visiting friends, going to restaurants and even shopping for radio components for his radio projects. He was an avid radio amateur, controlling the radio and associated equipment, all with plastic rods held in his mouth. He operated the computer also in this fashion and even made computer drawings on antenna designs etc which he shared with friends- my satellite antennae were home brewed from drawings he sent me. He was a keen DXer and had friends all over the world, on HF and satellites also. When AO 40 was operational he made several hundreds of contacts. Robert was Life member of ARSI and took an active part in all activities. He attended several ham fests and knew many, many hams all over VU and the rest of the world. He had recently constructed a home for himself in Bangalore in which the shack was on the first floor and had made a ramp from the ground floor to use his wheel chair to go to the first floor, so keen was he on amateur radio. Ham radio has lost a great operator who guided many hams and was a source of inspiration to many of us. - we will miss you Robert. May his soul rest in eternal peace Gopal VU2GMN Gopal Madhavan Shreyas Apartments 128 (old 63) Greenways Road R A Puram Chennai- 600 028, India Tel: +91 44 2493 7724/ 42303129 Mob: +91 94440 18452 E-mail: gopal.madha...@gmail.com [Non-text portions of this message have been removed] ___ Sent via amsat...@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
[amsat-bb] Re: IC-910H low audio problem.
I discovered this with my 910H. If you compare the schematic with an older Icom transceiver, say the IC-756, you will notice that the voltage divider on pin 8 decreases the audio on that pin by a factor of about 50 from the IC-756! I thought of two cures: 1. Modify the radio by replacing the offending resistor. 2. Modify my headset by bringing the line that would go to pin 8 outside the mic connector and run it to a 1/4 phone plug. I chose 2. I plug the phone plug into the nearby headphone jack when I use the headset, or pull it out to use the speaker. Works on both my 910 and 756. I was told by a person at Heil that Icom made that change to better use a TNC with the mic connector on the 910. Ron W5RKN Date: Tue, 9 Jun 2009 05:21:35 +0300 From: Kostas Ioannidis kostas.ioanni...@gmail.com Subject: [amsat-bb] IC-910H low audio problem. To: AMSAT-BB@amsat.org Message-ID: 6cd5903a0906081921k5cb111e0j945fc7b09e7d...@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1 According to the IC-910H manual, pin number 8 at the mic connector is audio output (which varies according to af control). I connected a pair of headphones at the pin but the audio is way to low and cannot be used for listening. Is it normal? I thought that it was designed for this purpose. Am I missing something in the menus? Thanks in advance! 73 de SW1IXP, Kostas Ioannidis ___ Sent via amsat...@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
[amsat-bb] Re: CW is still alive and well
Hey Gary, Thanks for this report. I had a pass of FO-29 on Saturday evening virtually all to myself - or, rather, I didn't hear any other stations, and no one answered my CQ. If you are referring to the pass that came down the east coast from the north a little before 11 p.m., local time, last night, that was the same pass I had no contacts on Saturday evening. I learned later that there was one other station on the pass, and he worked someone in South America as FO-29 moved south. By then, I had switched over to VO-52 and at least had a contact. I thought about trying that pass last night, but didn't because of Saturday night. One of the primary reasons I have been doing some research/testing on power levels and gear that is acceptable for satellite operation (and posting what I've learned here) is because I sense that many amateurs don't try the satellites because they perceive it to be a game that requires specialized gear that carries a fairly high price tag. Nothing could be further from the truth. Admittedly, I have bought used radios exclusively in setting up my station. That being said, however, my station is capable of working all the available satellites and modes, and it features computer control for Doppler tuning. I have well under $2,000 invested, and my station includes a spare radio. That is, I have picked up two used FT-817NDs and a used FT-857D. The bottom line is that many hams already have the radio gear they need to work any of the available satellites. They might have to buy or homebrew an antenna, but that's probably about it. That's not much of an expense to add space radio to the mix at any station - and add it effectively. I suspect many folks believe they need az/el rotors, computer control, all of that. No ... the don't NEED it. Certainly, those things would be nice to have here at my shack. But I don't have them, and I'm still working all of the satellites effectively enough to have 49 states and four continents in the log and confirmed - and I'm enjoying it immensely. I hope to hear you on the satellites soon, and I look forward to working you in CW. I've always enjoyed it, and there is something really special to me about using a straight key to work another station in CW over a satellite. That's definitely a mixed metaphor of technology - the old and the new - that is amazing. 73 to all, Tim - N3TL -- Original message from k8...@aol.com: -- I thought I'd check for activity on a late evening FO-29 pass tonight as I hadn't listened for quite sometime. I heard two 9 land stations who had the pass entirely to themselves. They were obviously good friends as one of them indicated his spam filter had probably eaten the other station's email who had sent pictures. They agreed to go to the Land Line after the pass indicating they probably lived fairly close to each other. I did wonder though where everyone else was on tonight's pass. I probably should have tuned around more and may have missed some other QSO's. Anyway, it was great hearing CW being utilized. The doppler however kept me quite busy at that frequency as I'm not using software. Just two ears and a pencil. I've got to cobble something together and get on the air soon. Especially since I know there are some good CW ops such as the two fine gentlemen I heard tonight. 73, Gary -K8KFJ- AMSAT #32574 Sat VUCC #125 **A Good Credit Score is 700 or Above. See yours in just 2 easy steps! (http://pr.atwola.com/promoclk/100126575x1221322977x1201367197/aol?redir=http:// www.freecreditreport.com/pm/default.aspx?sc=668072hmpgID=62bcd= JunestepsfooterNO62) ___ Sent via amsat...@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 ___ Sent via amsat...@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
[amsat-bb] Re: [amsatindia] Re: [VUHams] VU2MKP Silent Key
It is sad and shocking to know that Robert is no more. I remember meeting him many times and will continue to remember him as a humble and fine human being. He was a life member of AMSAT INDIA and has advised and shared his inputs during the design of VO-52. He was also one of the early VU station on the AO-40 and other satellites. Photograph of Robert in his shack can be viewed by visiting http://www.amsatindia.org/images/photogallery/VU2MKP.jpg May his soul rest in peace. Nitin [VU3TYG] www.amsatindia.org _ From: amsatin...@yahoogroups.com [mailto:amsatin...@yahoogroups.com] On Behalf Of Mani VU2WMY Sent: Tuesday, June 09, 2009 2:32 PM To: vuh...@yahoogroups.com; AMSAT-INDIA; amsat-bb@amsat.org; cq...@yahoogroups.com Subject: [amsatindia] Re: [VUHams] VU2MKP Silent Key It is a shocking and a very sad news. It is a bit difficult for me to accept that OT Robert is no more with us. He was truly an inspiring, humble and a fine human being. His technical knowledge is par with excellence. Rather, it is difficult to express in words about him. We really lost a man with a strong determination and a man who stood as an inspiration to us forever. I along with my family and club members express our Heart felt condolences to the bereaved family. May his Soul Rest in Peace. We miss you Robert. Mani, VU2WMY Secretary amp; Station-In-Charge Upagrah Amateur Radio Club VU2URC ISRO Satellite Centre Airport Road, Bangalore-560 017. Phone:(O)91-80-2508 2054/2192/2537 Mobile: 91-80-98803 41456 E-mail ID: w...@isac.gov. lt;mailto:wmy%40isac.gov.ingt; in vu2wmy_mani@ lt;mailto:vu2wmy_mani%40yahoo.comgt; yahoo.com isroh...@yahoo. lt;mailto:isrohams%40yahoo.comgt; com Quoting Gopal Madhavan lt;gopal.madhavan@ lt;mailto:gopal.madhavan%40gmail.comgt; gmail.comgt;: gt; I have just got the very sad news from VU2RCR Chandru, that our friend gt; Robert Kohli VU2MKP became a silent key in Bangalore just a few minutes ago gt; in a hospital where he had been admitted a few days ago. gt; gt; gt; gt; For those of us fortunate people who knew Robert, he was a truly gt; remarkable individual who in spite of his disabilities managed to do many gt; things we would be happy to just attempt. He was an example of what can be gt; done in spite of such severe handicaps. gt; gt; gt; gt; Being paralyzed from the neck down, he could only use his head and mouth to gt; control his motorized wheel chair and it was a common sight for him to drive gt; around the streets of Bangalore, visiting friends, going to restaurants and gt; even shopping for radio components for his radio projects. gt; gt; gt; gt; He was an avid radio amateur, controlling the radio and associated gt; equipment, all with plastic rods held in his mouth. He operated the computer gt; also in this fashion and even made computer drawings on antenna designs etc gt; which he shared with friends- my satellite antennae were home brewed from gt; drawings he sent me. gt; gt; gt; gt; He was a keen DXer and had friends all over the world, on HF and satellites gt; also. When AO 40 was operational he made several hundreds of contacts. gt; gt; gt; gt; Robert was Life member of ARSI and took an active part in all activities. He gt; attended several ham fests and knew many, many hams all over VU and the gt; rest of the world. gt; gt; gt; gt; He had recently constructed a home for himself in Bangalore in which the gt; shack was on the first floor and had made a ramp from the ground floor to gt; use his wheel chair to go to the first floor, so keen was he on amateur gt; radio. gt; gt; gt; gt; Ham radio has lost a great operator who guided many hams and was a source gt; of inspiration to many of us. gt; gt; gt; gt; - we will miss you Robert. gt; gt; gt; gt; May his soul rest in eternal peace gt; gt; gt; gt; Gopal VU2GMN gt; gt; gt; gt; Gopal Madhavan gt; gt; quot;Shreyas Apartmentsquot; gt; gt; 128 (old 63) Greenways Road gt; gt; R A Puram gt; gt; Chennai- 600 028, India gt; gt; Tel: #43;91 44 2493 7724/ 42303129 gt; gt; Mob: #43;91 94440 18452 gt; gt; E-mail: gopal.madhavan@ lt;mailto:gopal.madhavan%40gmail.comgt; gmail.com gt; gt; gt; gt; gt; gt; [Non-text portions of this message have been removed] gt; gt; [Non-text portions of this message have been removed] __._,_.___ Messages in this topic (3) Reply (via web post) | Start a new topic Messages |Files |Photos |Links Change settings via the Web
[amsat-bb] Re: [amsatindia] Re: [VUHams] VU2MKP Silent Key
It is sad and shocking to know that Robert is no more. I remember meeting him many times and will continue to remember him as a humble and fine human being. He was a life member of AMSAT INDIA and has advised and shared his inputs during the design of VO-52. He was also one of the early VU station on the AO-40 and other satellites. May his soul rest in peace. Nitin [VU3TYG] _ From: amsatin...@yahoogroups.com [mailto:amsatin...@yahoogroups.com] On Behalf Of Mani VU2WMY Sent: Tuesday, June 09, 2009 2:32 PM To: vuh...@yahoogroups.com; AMSAT-INDIA; amsat-bb@amsat.org; cq...@yahoogroups.com Subject: [amsatindia] Re: [VUHams] VU2MKP Silent Key It is a shocking and a very sad news. It is a bit difficult for me to accept that OT Robert is no more with us. He was truly an inspiring, humble and a fine human being. His technical knowledge is par with excellence. Rather, it is difficult to express in words about him. We really lost a man with a strong determination and a man who stood as an inspiration to us forever. I along with my family and club members express our Heart felt condolences to the bereaved family. May his Soul Rest in Peace. We miss you Robert. Mani, VU2WMY Secretary Station-In-Charge Upagrah Amateur Radio Club VU2URC ISRO Satellite Centre Airport Road, Bangalore-560 017. Phone:(O)91-80-2508 2054/2192/2537 Mobile: 91-80-98803 41456 E-mail ID: w...@isac.gov. mailto:wmy%40isac.gov.in in vu2wmy_mani@ mailto:vu2wmy_mani%40yahoo.com yahoo.com isroh...@yahoo. mailto:isrohams%40yahoo.com com Quoting Gopal Madhavan gopal.madhavan@ mailto:gopal.madhavan%40gmail.com gmail.com: I have just got the very sad news from VU2RCR Chandru, that our friend Robert Kohli VU2MKP became a silent key in Bangalore just a few minutes ago in a hospital where he had been admitted a few days ago. For those of us fortunate people who knew Robert, he was a truly remarkable individual who in spite of his disabilities managed to do many things we would be happy to just attempt. He was an example of what can be done in spite of such severe handicaps. Being paralyzed from the neck down, he could only use his head and mouth to control his motorized wheel chair and it was a common sight for him to drive around the streets of Bangalore, visiting friends, going to restaurants and even shopping for radio components for his radio projects. He was an avid radio amateur, controlling the radio and associated equipment, all with plastic rods held in his mouth. He operated the computer also in this fashion and even made computer drawings on antenna designs etc which he shared with friends- my satellite antennae were home brewed from drawings he sent me. He was a keen DXer and had friends all over the world, on HF and satellites also. When AO 40 was operational he made several hundreds of contacts. Robert was Life member of ARSI and took an active part in all activities. He attended several ham fests and knew many, many hams all over VU and the rest of the world. He had recently constructed a home for himself in Bangalore in which the shack was on the first floor and had made a ramp from the ground floor to use his wheel chair to go to the first floor, so keen was he on amateur radio. Ham radio has lost a great operator who guided many hams and was a source of inspiration to many of us. - we will miss you Robert. May his soul rest in eternal peace Gopal VU2GMN Gopal Madhavan Shreyas Apartments 128 (old 63) Greenways Road R A Puram Chennai- 600 028, India Tel: +91 44 2493 7724/ 42303129 Mob: +91 94440 18452 E-mail: gopal.madhavan@ mailto:gopal.madhavan%40gmail.com gmail.com [Non-text portions of this message have been removed] __._,_.___ http://groups.yahoo.com/group/amsatindia/message/1120;_ylc=X3oDMTM0YXYycW80 BF9TAzk3MzU5NzE0BGdycElkAzk5OTg3NDUEZ3Jwc3BJZAMxNzA1MDYzMTA4BG1zZ0lkAzExMjAE c2VjA2Z0cgRzbGsDdnRwYwRzdGltZQMxMjQ0NTM4MjAwBHRwY0lkAzExMjA- Messages in this topic (1) http://groups.yahoo.com/group/amsatindia/post;_ylc=X3oDMTJwZjVxOTFhBF9TAzk3 MzU5NzE0BGdycElkAzk5OTg3NDUEZ3Jwc3BJZAMxNzA1MDYzMTA4BG1zZ0lkAzExMjAEc2VjA2Z0 cgRzbGsDcnBseQRzdGltZQMxMjQ0NTM4MjAw?act=replymessageNum=1120 Reply (via web post) | http://groups.yahoo.com/group/amsatindia/post;_ylc=X3oDMTJlOTVwMzFiBF9TAzk3 MzU5NzE0BGdycElkAzk5OTg3NDUEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwNmdHIEc2xrA250cGME c3RpbWUDMTI0NDUzODIwMA-- Start a new topic Messages http://groups.yahoo.com/group/amsatindia/messages;_ylc=X3oDMTJlb3EwY3ZmBF9T Azk3MzU5NzE0BGdycElkAzk5OTg3NDUEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwNmdHIEc2xrA21z Z3MEc3RpbWUDMTI0NDUzODIwMA-- | Files http://groups.yahoo.com/group/amsatindia/files;_ylc=X3oDMTJmMW9tdTNhBF9TAzk 3MzU5NzE0BGdycElkAzk5OTg3NDUEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwNmdHIEc2xrA2ZpbGV zBHN0aW1lAzEyNDQ1MzgyMDA- | Photos http://groups.yahoo.com/group/amsatindia/photos;_ylc=X3oDMTJlMHBycWxlBF9TAz
[amsat-bb] wispdde to VB.NET?
Has anyone successfully converted wispdde to Visual Basic 2008 Express? I need to make some code changes to drive my antenna rotors but I don't have access to VB6. Modifying the software for the newer version looks like a major undertaking... 73 John - VE8EV ___ Sent via amsat...@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
[amsat-bb] Re: Another satellite-receiver option
I try also to receive NOAA APT transmission with an helix but i got very marginal results even with a preamp for 137khz. The signal was better but the pagers QRM was also boosted by about a factor of 5... The only one viable solution was to use my VHF satellite beam with a PAR electronics vhf notch filter part number 5602516. Of course you should have a 50khz band pass below that results are also very marginal. I don't know if the PCR-100 is able to received at this bandwidth but the PCR-1000 can and it can be driven by WXtoimg software. P.S. My home made helix is available for 35$ plus shipping but a bit hard to securely fit inside a shipping box. pics available if needed. On 8 Jun 2009 at 23:14, Jerry Clement wrote: I use a Hamtronics R139 Weather fax Receiver with a QFH antenna that I built for receving and decoding images from the weather birds such as NOAA 18. I never had any luck with any of my other receivers such as my Icom R20, being to narrow for this purpose, although I know of guy's who have modified receivers successfully for just this purpose. My set up may be seen on my website: www.stormchaser.cjb.net click on: Quadrifilar Helix Antenna. The page needs to be upgraded, as I use a newer laptop than the one shown. Jerry VE6AB www.ve6ab.blogspot.com ___ - Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe WAC BASIC CW PHONE SATELLITE ___ Sent via amsat...@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
[amsat-bb] Re: CW is still alive and well
Right on, Gary ! And in case nobody on the AMSAT-BB knows it, there was a record number of CW logs submitted for the CQ World Wide DX contest in 2008. Over 10,000 logs submitted. 73, John K6YK Find the perfect shutters to update your home. http://thirdpartyoffers.juno.com/TGL2141/fc/BLSrjpTGBBA0e02hqEehpsgE95Ox7zeLNnbKkv6cCuhf0O0FiwOIgDuaBNm/ ___ Sent via amsat...@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
[amsat-bb] Re: DJ-G7T programming cable question
Well said Nigel, I am about to discontinue monitoring this group because of the plethora or do it for me questions... do the research first folks and then ask what you can't figure out for yourselves... That is called learning.. DE KD1PE Jack - Original Message - From: Nigel Gunn G8IFF/W8IFF ni...@ngunn.net To: n...@bellsouth.net Cc: Amsat-BB amsat-bb@amsat.org Sent: Tuesday, June 09, 2009 2:18 PM Subject: [amsat-bb] Re: DJ-G7T programming cable question Hi Tim. Something that bugs me with e-groups in general is the number of people who have a relatively simple question/problem and give no indication that they have tried to solve it for themselves. The questions that are basically ohms law, you know the things, I need to charge this battery, what size resistor do I need and which side of the battery do I put it? Now be reasonable, that was in your Tech exam syllabus. Tell me what you've tried to solve the problem and I'm more likely to help. Don't expect me to be your Google operator! As for the piggies, well piggies are generally simple minded beasts. On-off keying and anything that cycles faster than every 3nS or so is beyond most of them. Most piggies can't even spell satellite. n...@bellsouth.net wrote: Hey Nigel, Thank you for posting that. As I read the original post just now (before I opened your response), I found myself thinking ... um ... try it? hihi Hope all is well with you. Did you see my post to the piggie reflector about including CW/SSB satellite contacts in the 10th Anniversary contest? No response, either on the reflector or off. That's a shame. 73, Tim - N3TL ___ Sent via amsat...@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 ___ Sent via amsat...@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
[amsat-bb] Re: DJ-G7T programming cable question
Whether or not a question is raised after someone has actually tried to work it out for themselves or not is immaterial. If this reflector, which lets face it is concerned with some fairly high level stuff in comparison to normal ham radio operations), is going to go the way of responding to a perfectly reasonable question with the reply of read the **g manual, then newcomers and interested observers are going to beat a hasty retreat thinking that AMSAT is elitist. We must not be seen to be typical of the 'those that know' wanting to protect their playground mentality. I have asked some downright stupidly basic questions on here over the years and have always been responded to with friendliness and professionalism even though I have often had a mental picture of my helpers banging their heads against a wall in frustration. But on the back of that I have been able to help with other people's issues where the same question has arisen. If questions offend then use a combination of filters and the delete key. My 2 peso's worth. David KG4ZLB Justin Pinnix wrote: Well, there's a guy on eHam who responds to every question with that's a stupid question or go look it up. That just doubles the amount of noise :-) I'm all for experimenting as well, but randomly plugging unknown devices together is a good way to blow something up. What if the programming cable is putting out +-12v (EIA RS-232) but the radio only wants to see +5 (CMOS/TTL)? 73 de AJ4MJ On Tue, Jun 9, 2009 at 4:18 PM, Nigel Gunn G8IFF/W8IFF ni...@ngunn.netwrote: ___ Sent via amsat...@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 ___ Sent via amsat...@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
[amsat-bb] Re: DJ-G7T programming cable question
Surely we should encourage people to think for themselves and at least try to sort their own issues. What are they going to do when the more experienced are no longer here. Isn't Give a man a fish; you have fed him for today. Teach a man to fish; and you have fed him for a lifetime relevent here? David - KG4ZLB wrote: Whether or not a question is raised after someone has actually tried to work it out for themselves or not is immaterial. ___ Sent via amsat...@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
[amsat-bb] Re: DJ-G7T programming cable question
No, don't agree. Man has to eat and will learn or be taught to fish or die! If man can not program his radio and can not work it out for himself and can't get a reply on a board such as this then he will go and maybe never come back and that's another satellite operator we may have lost. But he will still eat :-D David KG4ZLB Nigel Gunn G8IFF/W8IFF wrote: Surely we should encourage people to think for themselves and at least try to sort their own issues. What are they going to do when the more experienced are no longer here. Isn't Give a man a fish; you have fed him for today. Teach a man to fish; and you have fed him for a lifetime relevent here? David - KG4ZLB wrote: -- David KG4ZLB www.kg4zlb.com ___ Sent via amsat...@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
[amsat-bb] Re: DJ-G7T programming cable question
Cheers to you David! You just talked me out of unsubscribing to this BB. I'm licensed 2 years and still trying to figure out what the question is, let alone the answer. Steve. KI6OQU Sent via BlackBerry by ATT -Original Message- From: David - KG4ZLB kg4...@googlemail.com Date: Tue, 09 Jun 2009 18:13:05 To: Amsat-BBamsat-bb@amsat.org Subject: [amsat-bb] Re: DJ-G7T programming cable question Whether or not a question is raised after someone has actually tried to work it out for themselves or not is immaterial. If this reflector, which lets face it is concerned with some fairly high level stuff in comparison to normal ham radio operations), is going to go the way of responding to a perfectly reasonable question with the reply of read the **g manual, then newcomers and interested observers are going to beat a hasty retreat thinking that AMSAT is elitist. We must not be seen to be typical of the 'those that know' wanting to protect their playground mentality. I have asked some downright stupidly basic questions on here over the years and have always been responded to with friendliness and professionalism even though I have often had a mental picture of my helpers banging their heads against a wall in frustration. But on the back of that I have been able to help with other people's issues where the same question has arisen. If questions offend then use a combination of filters and the delete key. My 2 peso's worth. David KG4ZLB Justin Pinnix wrote: Well, there's a guy on eHam who responds to every question with that's a stupid question or go look it up. That just doubles the amount of noise :-) I'm all for experimenting as well, but randomly plugging unknown devices together is a good way to blow something up. What if the programming cable is putting out +-12v (EIA RS-232) but the radio only wants to see +5 (CMOS/TTL)? 73 de AJ4MJ On Tue, Jun 9, 2009 at 4:18 PM, Nigel Gunn G8IFF/W8IFF ni...@ngunn.netwrote: ___ Sent via amsat...@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 ___ Sent via amsat...@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 ___ Sent via amsat...@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
[amsat-bb] FS: Icom IC-W32A complete handheld satellite station
I have for sale a complete, full-duplex-capable handheld FM satellite station, including: - Icom IC-W32A HT, with manual and OEM duck antenna - Icom BP-170 battery case, holds 4 AA alkalines - Batteries America BP-173X, 9.6V 1450 mAh pack - Batteries America BP 171XH, 4.8V 2700 mAh pack - MFJ Speaker mic for the W32A. - Maldol stubby (2.5-inch) duck antenna with BNC connector - MFJ-1717 duck antenna with BNC connector - Pryme AL-800 telescoping whip antenna with BNC connector - Batteries America Cigarette plug for W32A I am not the first owner of the radio. I bought it from a commercial vendor last August at the Huntsville hamfest. That vendor provided a 30-day, no-questions-asked guarantee. The radio did and does work as new, with one exception. When I operate it full duplex and use a Y adapter plug at the earphone jack so I can hear myself and record the pass, I sometimes get audio break up that suggests a loose connection or aged plug. This doesn’t occur if I use the speaker mic, which has a headphone jack on the bottom that I can plug the Y adapter into. Otherwise, the radio performs as new. Cosmetically, it looks as close to NIB as I’ve ever seen in a used radio. I cannot see even minor surface scratches in the display face, and there are no scuffs or marks of any kind on the radio body or the battery packs. I’ll provide digital photos upon request. I picked up the battery packs, cigarette plug and speaker mic at Huntsville last August, too. The original Icom NiCad battery pack wasn’t in great shape, so I retired/recycled it. I bought the AL-800 antenna before I picked up the Icom, and have used it for multiple handheld satellite contacts. Allen, N5AFV, literally has made thousands of handheld satellite contacts using this antenna. The MFJ duck is capable of making satellite contacts, but it’s not as good as the AL-800. I have more than $450 – not retail, but what I actually paid – invested in this gear. Full retail price on the packs and other accessories would bring it close to $500. I am asking $300 (certified check or money order) for the entire package ($310 if you want to use PayPal because of its fees), with an additional $10 to cover USPS Priority Mail shipping and insurance. I am not interested in breaking the package up. Why am I selling? After last weekend’s testing, I want to get a Kenwood TH-F6A because of its versatility. With my other HT and my Diamond duplexer, I’ll still be able to operate the FM satellites full duplex. I am still unemployed (since late December), so something has to go if I want to pick up another radio. That’s also the reason for the extra $10 for PayPal. NOTE – I am listing this gear exclusively here on the AMSAT-BB for 24 hours. I’ll post to some other online sites if it’s not sold by 7 p.m., EDT (23:00 UTC) on June 10th. Please contact me off the AMSAT-BB with any questions. Thanks, and 73 to all, Tim – N3TL ___ Sent via amsat...@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
[amsat-bb] Re: VU2MKP Silent Key
- Original Message - From: Gopal Madhavan gopal.madha...@gmail.com To: amsat-bb@amsat.org Sent: Tuesday, June 09, 2009 3:22 AM Subject: [amsat-bb] VU2MKP Silent Key Being paralyzed from the neck down, he could only use his head and mouth to control his motorized wheel chair and it was a common sight for him to drive around the streets of Bangalore, visiting friends, going to restaurants and even shopping for radio components for his radio projects. He was an avid radio amateur, controlling the radio and associated equipment, all with plastic rods held in his mouth. He operated the computer also in this fashion and even made computer drawings on antenna designs etc which he shared with friends- my satellite antennae were home brewed from drawings he sent me. He was a keen DXer and had friends all over the world, on HF and satellites also. When AO 40 was operational he made several hundreds of contacts. Since I worked a lot of DX on AO-40 I checked my log for VU2MKP and confirmed I was one of the contacts he had made. Due to the time difference and relative short mutual window I did not work very many VU's. I had worked him on the 25/09/03 and he asked for a QSL via the Bureau. It took three years for the exchange to be made. His nice card was filled out by hand. Clare VE3NPC ___ Sent via amsat...@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
[amsat-bb] Full Duplex HT's
Hello to all Just a follow up to the posting of full duplex handhelds Came across this ht,that a local ham ordered He was not sure if it was full duplex or not I will see if I can download a manual to see Just for a point of interest. I once had a VHF of a similar ht didn't work to good in the ham band And not sure if theses are type approved or FCC approved just a little head scratched for all of you out there Howard VE4ISP ___ Sent via amsat...@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
[amsat-bb] Re: Full Duplex HT's
Sorry here is the Link http://www.wouxun.com/Two-Way-Radio/KG-UVD1.htm Howard From: Howard Kowall To: AMSAT-BB@amsat.org Sent: Tuesday, June 09, 2009 9:58 PM Subject: Full Duplex HT's Hello to all Just a follow up to the posting of full duplex handhelds Came across this ht,that a local ham ordered He was not sure if it was full duplex or not I will see if I can download a manual to see Just for a point of interest. I once had a VHF of a similar ht didn't work to good in the ham band And not sure if theses are type approved or FCC approved just a little head scratched for all of you out there Howard VE4ISP ___ Sent via amsat...@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
[amsat-bb] Re: Full Duplex HT's (Howard Kowall)
Howard - Tell your friend to stay away from Chinese crap and purchase products approved by the governing boards of his own country. Sorry for the attitude ... But China owns way to much of my country, and all they produce is inferior crap that U.S. citizens eat up at Wal- Mart and similar retailers. There are plenty of amateur radio manufacturers who follow my country's rules from whom I choose to purchase. Clint Bradford, K6LCS 909-241-7666 ___ Sent via amsat...@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
[amsat-bb] Full Duplex Radios - A Complete List
After a couple of hours of surfing around on Universal Radio and other radios sites that keep a good archive, I've completed the list of full duplex radios. Use it however you want; print it out before a hamfest, post it in your shack. All that I ask is that you let me know if there are any errors on the list. Full URL: http://thathamkid.com/website/ham-radio/full-duplex-radios Shortend URL: http://bit.ly/JclIa Also, up in the top right-hand corner of the article is a little icon of a printer. For a printable version (without all of the template junk), click that icon. -- Andrew Koenig 73 de KE5GDB ___ Sent via amsat...@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
[amsat-bb] SO50 problems and questions
Hello I am relatively new (- I have been tring on my own to get the hang of working the satellites) with little or no luck. I have been posting my failed results to twitter and getting over frustrated in my attempts - luckly there have been a few who have given me pointers. And one very nice person kl7cn let me call him and he talked me though a few things during the call he said maybe I should try the SO50. So today I did try it And much to my surprise and happiness it was easy enough to pickup and find and things seemed to working for me (He told me that is was a quite machine and that I might have to look for it a bit) The pass I tried was at 1710 UTC (110 pm local est) and the sat was moving from the southwest to the northeast from my previous trys on the AO51 I knew that I would probably not get it while it was still low (less then about 20 degrees - also because of where I was pointing the antenna that low I was pointing right at a building) I reasoned that if I started looking at about 24 degrees I would being doing much better (so that is what I did) at about 1714 or 1715 UTC I had heard the SO51 for the first time, still a bit rough and probably still a little low by the time it was up around the 40 degree mark I thought What the heck I am here, people are talking why not try to make a contact - so that is what I did I think I waited just a little longer got a nice strong signal and put my call out KD8BXP em79 -- What I heard on the downlink really surprised me - it was this horrable noise (it almost sounded like when 2 people double) I don't know what I did but thought ok maybe feedback from the microphone so I unpluged the external and tried again I got the same horrable sound Now I am sorry up front for this noise I am sure people heard it - so if you were on around 1717 - 1720 I am so sorry upfront But that leads me to my question - what did I do wrong? And how can I correct the problem and try again I have been really frustrated with the AO51 so much so that I almost put my rig antenna and what not on ebay 3 days ago - I cooled off but I really want to work this bird It seemed (at least to a newbie) an easy one to find and maybe make contacts on. You will need to know the setup: TH-D7 A (not the G model I have a G but didn't use it this time) Arrow (2 meter/440) mounted to a telescope tripod Eeepc running ubuntu linux a gpredict External mic for the radio I was on 145.850 pl 67hz for the uplink And 436.800 for the downlink Radio was in duplex mode and sql was turned off (or open if you prefer) And the balance on the speaker was set for only the 440 side I was at 40 - 50 degrees when I first keyed up and the second time would have been when it was at its highest point of between 64 and 74 degrees I was on the high power setting I have used this radio for both local repeater work and aprs and no one has ever told me that it was making horrable noises And I think if it was making horrable noises while transmitting aprs the data would be corrpted I hope I have given enough information. I hope someone can help I don't want to make horrable noises again One other thing but I am sure it is my problem not one that someone fix so to speak Once the satellite reached its max and started back down - I lost it completely couldn't find it again I think it was me one leg on the tripod is bent and started to collaspe while I was turning the antenna to start it pointing in a north east direct Thanks for the help in advance I write a lot to ask something simple sorry about that LeRoy, KD8BXP Sent on the Now Network� from my Sprint® BlackBerry ___ Sent via amsat...@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
[amsat-bb] Re: DJ-G7T programming cable question
If you have the manual you can look and see how the cable is wired up, then look on line for the new radio and see if the cable is wired the same If so then my guess would be they are the same cable I have an ic-91ad and a kenwood th-d7ag - they use different cables (same plug on the radio side) but if you look close they flipped I think two wires and putting a null modem on the serial end makes them the same cable and it works I have used it on both radios with the null modem for the kenwood So you may even have a cable that will work and just need a null modem I think it was like 7 bucks at radio shack Good luck. LeRoy, Kd8bxp --Original Message-- From: Alan P. Biddle Sender: amsat-bb-boun...@amsat.org To: amsat-bb@amsat.org ReplyTo: apbid...@mailaps.org Subject: [amsat-bb] DJ-G7T programming cable question Sent: Jun 9, 2009 3:07 PM Hi, In looking for a cost effective programming cable, I find that many including the Alinco EWR-7 are listed on places like eBay as for Alinco or Icom. That strongly _suggests_ that the hardware is the same. I already have the Alinco EDS-10 and a RT Systems Icom cable, so it looks as if I have what I need. Google came up with a lot of good information, but I wasn't able to find enough to determine whether they are in fact interchangeable. Anybody have any definite knowledge? 73, Alan WA4SCA ___ Sent via amsat...@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 Sent on the Now Network� from my Sprint® BlackBerry ___ Sent via amsat...@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
[amsat-bb] Re: SO50 problems and questions
I would try taking the antenna off of the tripod for a little while. The polarization of the satellites changes constantly, and with the antenna on the tripod, it's difficult to compensate for those changes. Also, AO-51 is a much stronger bird than SO-50, but AO-27 is the strongest at the moment. AO-27 has the same frequencies as SO-50, but there is no tone, and it's got a timer on it that turns it on when it reaches (about) the Gulf Coast line (for the purposes of maintaining battery power). You'll have time to get your antenna in the right place with the 20 seconds of telemetry it starts with (see http://www.ao27.org/AO27/index.shtml for a schedule). For your situation, I would recommend trying AO-27 until you are familiar with the satellites. AO-27 isn't as crowded as AO-51, but it's also not as quiet (both in traffic and output) as SO-50. Don't quote me on it, but I think AO-51 has less than 500mW output right now, AO-27 is 500mW and SO-50 is 250mW. Good luck! Once you get the hang of it, it's easy enoguh that a teenager can do it (I'd know..) 73 de KE5GDB On Tue, Jun 9, 2009 at 9:18 PM, LeRoy Miller kd8...@sprint.blackberry.netwrote: Hello I am relatively new (- I have been tring on my own to get the hang of working the satellites) with little or no luck. I have been posting my failed results to twitter and getting over frustrated in my attempts - luckly there have been a few who have given me pointers. And one very nice person kl7cn let me call him and he talked me though a few things during the call he said maybe I should try the SO50. So today I did try it And much to my surprise and happiness it was easy enough to pickup and find and things seemed to working for me (He told me that is was a quite machine and that I might have to look for it a bit) The pass I tried was at 1710 UTC (110 pm local est) and the sat was moving from the southwest to the northeast from my previous trys on the AO51 I knew that I would probably not get it while it was still low (less then about 20 degrees - also because of where I was pointing the antenna that low I was pointing right at a building) I reasoned that if I started looking at about 24 degrees I would being doing much better (so that is what I did) at about 1714 or 1715 UTC I had heard the SO51 for the first time, still a bit rough and probably still a little low by the time it was up around the 40 degree mark I thought What the heck I am here, people are talking why not try to make a contact - so that is what I did I think I waited just a little longer got a nice strong signal and put my call out KD8BXP em79 -- What I heard on the downlink really surprised me - it was this horrable noise (it almost sounded like when 2 people double) I don't know what I did but thought ok maybe feedback from the microphone so I unpluged the external and tried again I got the same horrable sound Now I am sorry up front for this noise I am sure people heard it - so if you were on around 1717 - 1720 I am so sorry upfront But that leads me to my question - what did I do wrong? And how can I correct the problem and try again I have been really frustrated with the AO51 so much so that I almost put my rig antenna and what not on ebay 3 days ago - I cooled off but I really want to work this bird It seemed (at least to a newbie) an easy one to find and maybe make contacts on. You will need to know the setup: TH-D7 A (not the G model I have a G but didn't use it this time) Arrow (2 meter/440) mounted to a telescope tripod Eeepc running ubuntu linux a gpredict External mic for the radio I was on 145.850 pl 67hz for the uplink And 436.800 for the downlink Radio was in duplex mode and sql was turned off (or open if you prefer) And the balance on the speaker was set for only the 440 side I was at 40 - 50 degrees when I first keyed up and the second time would have been when it was at its highest point of between 64 and 74 degrees I was on the high power setting I have used this radio for both local repeater work and aprs and no one has ever told me that it was making horrable noises And I think if it was making horrable noises while transmitting aprs the data would be corrpted I hope I have given enough information. I hope someone can help I don't want to make horrable noises again One other thing but I am sure it is my problem not one that someone fix so to speak Once the satellite reached its max and started back down - I lost it completely couldn't find it again I think it was me one leg on the tripod is bent and started to collaspe while I was turning the antenna to start it pointing in a north east direct Thanks for the help in advance I write a lot to ask something simple sorry about that LeRoy, KD8BXP Sent on the Now Network™ from my Sprint® BlackBerry ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member?
[amsat-bb] Re: SO50 problems and questions
I also forgot to mention that a PreAmp makes all of the difference. I worked a few passes with N5AFV this past weekend for Museum Ship weekend, and he let me borrow his preamp. On AO-27, it went from an S-1 to an S6, and with SO-50 it went from an S-0 (still audible though) to an S-4. I'll also embarrassingly admit that I had my arrow pointed in the wrong direction (for part of the pass), and AO-27 was still audible with an S3, but only with the preamp. I believe we used an AAR SP450VDA. On Tue, Jun 9, 2009 at 11:22 PM, Andrew Koenig ke5...@gmail.com wrote: I would try taking the antenna off of the tripod for a little while. The polarization of the satellites changes constantly, and with the antenna on the tripod, it's difficult to compensate for those changes. Also, AO-51 is a much stronger bird than SO-50, but AO-27 is the strongest at the moment. AO-27 has the same frequencies as SO-50, but there is no tone, and it's got a timer on it that turns it on when it reaches (about) the Gulf Coast line (for the purposes of maintaining battery power). You'll have time to get your antenna in the right place with the 20 seconds of telemetry it starts with (see http://www.ao27.org/AO27/index.shtml for a schedule). For your situation, I would recommend trying AO-27 until you are familiar with the satellites. AO-27 isn't as crowded as AO-51, but it's also not as quiet (both in traffic and output) as SO-50. Don't quote me on it, but I think AO-51 has less than 500mW output right now, AO-27 is 500mW and SO-50 is 250mW. Good luck! Once you get the hang of it, it's easy enoguh that a teenager can do it (I'd know..) 73 de KE5GDB On Tue, Jun 9, 2009 at 9:18 PM, LeRoy Miller kd8...@sprint.blackberry.net wrote: Hello I am relatively new (- I have been tring on my own to get the hang of working the satellites) with little or no luck. I have been posting my failed results to twitter and getting over frustrated in my attempts - luckly there have been a few who have given me pointers. And one very nice person kl7cn let me call him and he talked me though a few things during the call he said maybe I should try the SO50. So today I did try it And much to my surprise and happiness it was easy enough to pickup and find and things seemed to working for me (He told me that is was a quite machine and that I might have to look for it a bit) The pass I tried was at 1710 UTC (110 pm local est) and the sat was moving from the southwest to the northeast from my previous trys on the AO51 I knew that I would probably not get it while it was still low (less then about 20 degrees - also because of where I was pointing the antenna that low I was pointing right at a building) I reasoned that if I started looking at about 24 degrees I would being doing much better (so that is what I did) at about 1714 or 1715 UTC I had heard the SO51 for the first time, still a bit rough and probably still a little low by the time it was up around the 40 degree mark I thought What the heck I am here, people are talking why not try to make a contact - so that is what I did I think I waited just a little longer got a nice strong signal and put my call out KD8BXP em79 -- What I heard on the downlink really surprised me - it was this horrable noise (it almost sounded like when 2 people double) I don't know what I did but thought ok maybe feedback from the microphone so I unpluged the external and tried again I got the same horrable sound Now I am sorry up front for this noise I am sure people heard it - so if you were on around 1717 - 1720 I am so sorry upfront But that leads me to my question - what did I do wrong? And how can I correct the problem and try again I have been really frustrated with the AO51 so much so that I almost put my rig antenna and what not on ebay 3 days ago - I cooled off but I really want to work this bird It seemed (at least to a newbie) an easy one to find and maybe make contacts on. You will need to know the setup: TH-D7 A (not the G model I have a G but didn't use it this time) Arrow (2 meter/440) mounted to a telescope tripod Eeepc running ubuntu linux a gpredict External mic for the radio I was on 145.850 pl 67hz for the uplink And 436.800 for the downlink Radio was in duplex mode and sql was turned off (or open if you prefer) And the balance on the speaker was set for only the 440 side I was at 40 - 50 degrees when I first keyed up and the second time would have been when it was at its highest point of between 64 and 74 degrees I was on the high power setting I have used this radio for both local repeater work and aprs and no one has ever told me that it was making horrable noises And I think if it was making horrable noises while transmitting aprs the data would be corrpted I hope I have given enough information. I hope someone can help I don't want to make horrable noises again One other thing but I am sure it is my problem not one that
[amsat-bb] Re: Another satellite-receiver option
Luc, When using a preamp in any metropolitan area a band pass filter is needed. Helicoil types are very good for VHF. DCS makes them or build one out of the RSGB Book. QFH antennas can be made 1/4 turn to 1 turn, 1/4 wave to 1 wave all with different patterns. If done right they are a very effective antenna. NOAA Tiros N satellites run 5 watts on 137 MHz. On 70 cm AO-51 is 1/2 W and you lose 9 dB more for the increase in frequency. You have 3dB less galactic noise on 70 cm, and another 3 dB for reduced bandwidth 37 KHz to 16 KHz. Doing the math you are comparing 5 watts of (NOAA-18) to .250 effective watts on AO-51 adjusted for noise power and frequency. A huge difference! Art, KC6UQH -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Luc Leblanc Sent: Tuesday, June 09, 2009 8:43 AM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: Another satellite-receiver option I try also to receive NOAA APT transmission with an helix but i got very marginal results even with a preamp for 137khz. The signal was better but the pagers QRM was also boosted by about a factor of 5... The only one viable solution was to use my VHF satellite beam with a PAR electronics vhf notch filter part number 5602516. Of course you should have a 50khz band pass below that results are also very marginal. I don't know if the PCR-100 is able to received at this bandwidth but the PCR-1000 can and it can be driven by WXtoimg software. P.S. My home made helix is available for 35$ plus shipping but a bit hard to securely fit inside a shipping box. pics available if needed. On 8 Jun 2009 at 23:14, Jerry Clement wrote: I use a Hamtronics R139 Weather fax Receiver with a QFH antenna that I built for receving and decoding images from the weather birds such as NOAA 18. I never had any luck with any of my other receivers such as my Icom R20, being to narrow for this purpose, although I know of guy's who have modified receivers successfully for just this purpose. My set up may be seen on my website: www.stormchaser.cjb.net click on: Quadrifilar Helix Antenna. The page needs to be upgraded, as I use a newer laptop than the one shown. Jerry VE6AB www.ve6ab.blogspot.com ___ - Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe WAC BASIC CW PHONE SATELLITE ___ Sent via amsat...@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 __ Information from ESET NOD32 Antivirus, version of virus signature database 4142 (20090609) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 4142 (20090609) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ___ Sent via amsat...@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
