[amsat-bb] Re: HT supports full duplex satellite operation
My Japanese is poor ... from what I see, it reads ... The handy machine whose APRS and GPS functional loading are enormous appears in 2010! With is. As for design, the same as TH-D7 which is sold in the past. If APRS, you mention GPS handy, presently the handy machine most it is VX-8 of popularity, but “it becomes the model of the efficiency which exceeds VX-8!”With is. Oh, it is the pleasure. And, strictly confidential, it develops also 0 succession type, it is! With is. Whether it is 2011, ... . You think that it can sell! [kenutsudo], it may be able to expect future, is. Has anyone spoken with Kenwood-US about this? If not, I'll call tomorrow Clint Bradford ___ 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: HT supports full duplex satellite operation
Is that your usual way of of asking for info? seems a little strange you assume info comes from that high mostly i was googling , I believe tokyo ham fairs few months ago or something while really looking for info onthe new 9100 and noticed it by accident I noticed a picture and paragraph on it, i am sure if I found it anyone could On Oct 21, 2009, at 12:45 AM, Clint Bradford wrote: ... I believe Kenwood is going to 're offer ' a newer version of their recently disco'd TH7 ht ... And your source at Kenwood's corporate offices for this info is ... ? Clint Braddford, K6LCS ___ 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 Myles ___ 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] PIC sat tracker
Putting together a USB 16F877 rotator control A/D serial and LOGIC Got a few options Predict as the AZ/EL engine and perl scripts. 1. Completely autonomous - quite hard to do in a PIC 2. Use the A/D and just send data back to LINUX and get LINUX to turn relays on / off via parra port 3. Send AZ and EL to the PIC, do a ASCII to BIN and then get the PIC to drive the rotators. 4. Use the A/D and send data to LINUX and then send back a serial command on what to do. Cheers Andrew VK4TEC ___ 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] Arrow 10W Duplexer Performance Measurements
Quite a lot of guys are using the handy Arrow Model 10W duplexer for the handheld 146/437 antenna and mine arrived here today so I thought I would put it on the network analyser and see how it performs. From the Radio cable to the 2m antenna connector an Insertion Loss of 0.75dB was measured with a rejection of 57dB at 70cm. The VSWR at 2m was 1.24:1 From the Radio cable to the 70cm antenna connector an Insertion Loss of 1.2dB was measured with an attenuation of 56dB on the 2m signal. The VSWR at 70cm was 1.29:1 The VSWR on the 2m port was 1.21:1 and on the 70cm port was 1.20:1 For those guys wanting to look at the actual plots they can be found here http://www.rfdesign.co.za/default.asp?pageID=785423593filePath=D:\SoftPage_V5\files\5645456\Download-Library\Amateur-Radio\ZS1LS\Mode-J-Filter 73's Allan ZS1LS ___ 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] SATPC32 Problem Taken Care of
Never did get it to work properly in the program itself However, someone off the list sent me a link to his own software ( very nice software ) For controlling the rotor and it also ties into SATPC32, Orbitron, and NOVA. ( plus some others ) So all is well and its going great now.. Thanks for the replys.. Randy - N2CUA ___ 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] Satellite Pass Predictions
There has been some discussion on how to determine when a bird will be in view over an extended period of time. You really don't need a pocket computer or laptop to carry around to do this. Just simply print out the pass predictions using SatPC32 sold by AMSAT and written by DK1TB who has donated the program to AMSAT. There are two accessory programs included in SatPC32. The first is called WinAOS and it will make predictions for multiple birds of your choosing over a 10+ day period of your choosing. Print out the results and keep them in your vehicle. You'll have AOS/LOS times and AOS/LOS azimuths plus max elevation and visible time. This is plenty of info to allow you to work a bird with a handheld antenna. Just watch the time and move the antenna accordingly. WinAos QTH: -81.7/41.3 T#: 11616 Sat.: 5 [Standard] -- Day Object AOS (U) LOS Period maxEl AZ -- 21.10.2009 VO-5200:18 00:2305 02 076 - 024 21.10.2009 AO-0700:36 00:5721 39 187 - 338 21.10.2009 AO-5100:41 00:4807 04 244 - 310 21.10.2009 VO-5201:50 02:0212 39 147 - 355 21.10.2009 AO-0702:37 02:4508 02 259 - 306 21.10.2009 SO-5003:06 03:1408 05 140 - 066 21.10.2009 VO-5203:27 03:3811 17 208 - 333 21.10.2009 SO-5004:43 04:5714 57 201 - 037 21.10.2009 AO-2706:02 06:0907 04 053 - 118 21.10.2009 SO-5006:25 06:3813 21 251 - 026 21.10.2009 AO-2707:39 07:5314 51 018 - 182 The other program that comes with SatPC32 is WinListen. This program will give you satellite visibility at various intervals throughout the pass. It has a two-observer feature which allows you to enter two grids and find the mutual window on a particular satellite. Here's an example between Ohio and Scotland on AO-51 at 20 second intervals. WinListen 8.0 [AO-51] T#:11616 QTH1: -81.7/41.3 QTH2: -8.4/52.3 -- Day Time(U) Az1 El1 Az2 El2 MA Height Lon/Lat Orbit -- 21.10.2009 09:29:00 59 0 279 3 19.7711 314 50 27911 21.10.2009 09:29:20 61 1 277 2 20.5712 314 49 27911 21.10.2009 09:29:40 64 1 275 1 21.4712 313 48 27911 21.10.2009 09:30:00 67 1 272 1 22.2712 313 46 27911 I use this program to set up schedules when the likelihood of a window is remote. These two programs are selected under the Programs link in the SatPC32 toolbar. 73, John K8YSE ___ 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: Satellite Pass Predictions
Thanks John for the info.never had really looked at that before, as I've always used the Orbitron printout. Only thing on the SatPC32 printout is wish the print was abit bigger for us old guys, and abit darker, but otherwise it has good info..tnx again... \John\ - Original Message - From: John Papay j...@papays.com To: amsat-bb@amsat.org Sent: Wednesday, October 21, 2009 6:02:08 AM GMT -08:00 US/Canada Pacific Subject: [amsat-bb] Satellite Pass Predictions There has been some discussion on how to determine when a bird will be in view over an extended period of time. You really don't need a pocket computer or laptop to carry around to do this. Just simply print out the pass predictions using SatPC32 sold by AMSAT and written by DK1TB who has donated the program to AMSAT. There are two accessory programs included in SatPC32. The first is called WinAOS and it will make predictions for multiple birds of your choosing over a 10+ day period of your choosing. Print out the results and keep them in your vehicle. You'll have AOS/LOS times and AOS/LOS azimuths plus max elevation and visible time. This is plenty of info to allow you to work a bird with a handheld antenna. Just watch the time and move the antenna accordingly. WinAos QTH: -81.7/41.3 T#: 11616 Sat.: 5 [Standard] -- Day Object AOS (U) LOS Period maxEl AZ -- 21.10.2009 VO-52 00:18 00:23 05 02 076 - 024 21.10.2009 AO-07 00:36 00:57 21 39 187 - 338 21.10.2009 AO-51 00:41 00:48 07 04 244 - 310 21.10.2009 VO-52 01:50 02:02 12 39 147 - 355 21.10.2009 AO-07 02:37 02:45 08 02 259 - 306 21.10.2009 SO-50 03:06 03:14 08 05 140 - 066 21.10.2009 VO-52 03:27 03:38 11 17 208 - 333 21.10.2009 SO-50 04:43 04:57 14 57 201 - 037 21.10.2009 AO-27 06:02 06:09 07 04 053 - 118 21.10.2009 SO-50 06:25 06:38 13 21 251 - 026 21.10.2009 AO-27 07:39 07:53 14 51 018 - 182 The other program that comes with SatPC32 is WinListen. This program will give you satellite visibility at various intervals throughout the pass. It has a two-observer feature which allows you to enter two grids and find the mutual window on a particular satellite. Here's an example between Ohio and Scotland on AO-51 at 20 second intervals. WinListen 8.0 [AO-51] T#:11616 QTH1: -81.7/41.3 QTH2: -8.4/52.3 -- Day Time(U) Az1 El1 Az2 El2 MA Height Lon/Lat Orbit -- 21.10.2009 09:29:00 59 0 279 3 19.7 711 314 50 27911 21.10.2009 09:29:20 61 1 277 2 20.5 712 314 49 27911 21.10.2009 09:29:40 64 1 275 1 21.4 712 313 48 27911 21.10.2009 09:30:00 67 1 272 1 22.2 712 313 46 27911 I use this program to set up schedules when the likelihood of a window is remote. These two programs are selected under the Programs link in the SatPC32 toolbar. 73, John K8YSE ___ 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: Satellite Pass Predictions
Thanks Erich for the info, and yes, that does help these old tired eyes... again, thanks.. John - Original Message - From: Erich Eichmann erich.eichm...@t-online.de To: w6...@comcast.net, John Papay j...@papays.com Cc: amsat-bb@amsat.org Sent: Wednesday, October 21, 2009 8:49:04 AM GMT -08:00 US/Canada Pacific Subject: Re: [amsat-bb] Re: Satellite Pass Predictions The font and font size can be chosen in the WinAOS and WinListen setup menus for the screen and the printer. 73s, Erich, DK1TB - Original Message - From: w6...@comcast.net To: John Papay j...@papays.com Cc: amsat-bb amsat-bb@amsat.org Sent: Wednesday, October 21, 2009 5:04 PM Subject: [amsat-bb] Re: Satellite Pass Predictions Thanks John for the info.never had really looked at that before, as I've always used the Orbitron printout. Only thing on the SatPC32 printout is wish the print was abit bigger for us old guys, and abit darker, but otherwise it has good info..tnx again... \John\ - Original Message - From: John Papay j...@papays.com To: amsat-bb@amsat.org Sent: Wednesday, October 21, 2009 6:02:08 AM GMT -08:00 US/Canada Pacific Subject: [amsat-bb] Satellite Pass Predictions There has been some discussion on how to determine when a bird will be in view over an extended period of time. You really don't need a pocket computer or laptop to carry around to do this. Just simply print out the pass predictions using SatPC32 sold by AMSAT and written by DK1TB who has donated the program to AMSAT. There are two accessory programs included in SatPC32. The first is called WinAOS and it will make predictions for multiple birds of your choosing over a 10+ day period of your choosing. Print out the results and keep them in your vehicle. You'll have AOS/LOS times and AOS/LOS azimuths plus max elevation and visible time. This is plenty of info to allow you to work a bird with a handheld antenna. Just watch the time and move the antenna accordingly. WinAos QTH: -81.7/41.3 T#: 11616 Sat.: 5 [Standard] -- Day Object AOS (U) LOS Period maxEl AZ -- 21.10.2009 VO-52 00:18 00:23 05 02 076 - 024 21.10.2009 AO-07 00:36 00:57 21 39 187 - 338 21.10.2009 AO-51 00:41 00:48 07 04 244 - 310 21.10.2009 VO-52 01:50 02:02 12 39 147 - 355 21.10.2009 AO-07 02:37 02:45 08 02 259 - 306 21.10.2009 SO-50 03:06 03:14 08 05 140 - 066 21.10.2009 VO-52 03:27 03:38 11 17 208 - 333 21.10.2009 SO-50 04:43 04:57 14 57 201 - 037 21.10.2009 AO-27 06:02 06:09 07 04 053 - 118 21.10.2009 SO-50 06:25 06:38 13 21 251 - 026 21.10.2009 AO-27 07:39 07:53 14 51 018 - 182 The other program that comes with SatPC32 is WinListen. This program will give you satellite visibility at various intervals throughout the pass. It has a two-observer feature which allows you to enter two grids and find the mutual window on a particular satellite. Here's an example between Ohio and Scotland on AO-51 at 20 second intervals. WinListen 8.0 [AO-51] T#:11616 QTH1: -81.7/41.3 QTH2: -8.4/52.3 -- Day Time(U) Az1 El1 Az2 El2 MA Height Lon/Lat Orbit -- 21.10.2009 09:29:00 59 0 279 3 19.7 711 314 50 27911 21.10.2009 09:29:20 61 1 277 2 20.5 712 314 49 27911 21.10.2009 09:29:40 64 1 275 1 21.4 712 313 48 27911 21.10.2009 09:30:00 67 1 272 1 22.2 712 313 46 27911 I use this program to set up schedules when the likelihood of a window is remote. These two programs are selected under the Programs link in the SatPC32 toolbar. 73, John K8YSE ___ 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] Postscript: Road Trip to FN56, FN57, FN66, FN67, etc.
Hello All, Looking back, the Road Trip to FN56, FN57, FN66, FN67, etc. was eminently successful. In the course of two days, I drove 1,119 miles from my Dad's home in Massachusetts to Maine and back: 429 miles up, 261 miles around the back woods of northern Maine searching for better-than-average operating locations, and 429 miles back. In the process, I activated every grid square north of Bangor, with the exception of FN45, plus I activated FN53 in southern Maine as well. Put another way, I worked 11 satellite passes to activate 7 rare grid squares in two days. In that time, I would estimate that I made over a hundred satellite contacts. My appreciation goes out to all who participated. If you're interested in the actual locations I worked from, it's summarized in the chart below in the order that I worked from them. The latitudes and longitudes were recorded on site from a Garmin GPS 12XL, except as noted. = Actual Locations for Saturday, October 17th: #Lat LonGridNearest Town -- --- --- 1 43.979N 69.978W FN53 Topsham, ME 2 45.596N 68.535W FN55Medway, ME 3 46.791N 68.040W FN56 Caribou, ME 4 47.006N 68.180W FN57 Stockholm, ME 5 46.854N 67.988W FN66 Caribou, ME = Actual Locations for Sunday, October 18th: #Lat Lon GridNearest Town -- --- --- 6 47.132N 67.954W FN67 Van Buren, ME 7 47.132N 67.954W FN67 Van Buren, ME 8 47.006N 68.180W FN57 Stockholm, ME 9 46.854N 67.989W FN66 Caribou, ME 10 46.692N* 68.015W* FN56 Presque Isle, ME 11 45.988N 67.862W FN65 North Amity, ME = * At the time, I was so busy driving from one operating location to another that I didn't have time to record the latitude and longitude from the GPS 12XL. So, it was determined later from topographic maps. = You probably won't hear me on the satellites for a while. Instead, I'll be focused on completing several antenna related projects before winter sets in. Among other things, I need to get my outdoor satellite antennas back in operation. But in the mean time, send me your list of other rare grid squares you need in the northeast USA. I'll consider traveling to and activating any grid square in NY, PA, CT, RI, MA, VT, NH, and ME. With winter approaching, this probably won't happen any time soon. But when the weather breaks next spring, the opportunity for doing this may come again. The most requested grid squares will be the ones I consider going to first. So, email me your grid square wish list. And please put the phrase grid square somewhere on your email subject line. 73, Richard, N2SPI n2...@amsat.org ___ 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: Grid Square Maps
Try DX Atlas it is not printed but you can track all contacted and confirmed grids with different colors... also it counts both cases 73 Rafael Valdez Jr. XE2RV @ DM41mh 10-10 52716 VUCC Sat #164 http://sat-xe.blogspot.com EX-XE2PWF P Before printing, please think about your responsibility and commitment with the ENVIRONMENT. Antes de Imprimir, piensa entu responsabilidad y compromiso con el MEDIO AMBIENTE From: k...@cox.net To: amsat-bb@amsat.org Date: Wed, 21 Oct 2009 09:33:57 -0700 Subject: [amsat-bb] Grid Square Maps Back in my county-hunting days I had purchased, from somewhere, a poster size black on white map of the continental USA with all counties shown. As each county was confirmed I could color in that county with a felt-tip marker. So I could quickly see if I needed a county heard on the air. Is anyone aware of a similar commercially available map for the USA that shows grid squares which could be colored in as they were confirmed? How about for Europe or other areas? Thanks. Tom, KØTW ___ 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: Grid Square Maps
Tom, I believe that the ARRL is still publishing a book that has the grid squares for the entire world. Might be a bit of an overkill considering what you are looking for but that is your call. 73, Dave - K4DLG On 10/21/2009 12:33 PM, Tom wrote: Back in my county-hunting days I had purchased, from somewhere, a poster size black on white map of the continental USA with all counties shown. As each county was confirmed I could color in that county with a felt-tip marker. So I could quickly see if I needed a county heard on the air. Is anyone aware of a similar commercially available map for the USA that shows grid squares which could be colored in as they were confirmed? How about for Europe or other areas? Thanks. Tom, KØTW ___ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.24/2449 - Release Date: 10/20/09 18:42:00 ___ 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: Grid Square Maps
You can print your own if you just need the USA. http://www.oema.us/files/Amateur_Radio_US_Grid_Square_Map.pdf Kenneth - N5VHO -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of David Gendle Sent: Wednesday, October 21, 2009 12:04 PM To: AMSAT BB Mailing List Subject: [amsat-bb] Re: Grid Square Maps Tom, I believe that the ARRL is still publishing a book that has the grid squares for the entire world. Might be a bit of an overkill considering what you are looking for but that is your call. 73, Dave - K4DLG On 10/21/2009 12:33 PM, Tom wrote: Back in my county-hunting days I had purchased, from somewhere, a poster size black on white map of the continental USA with all counties shown. As each county was confirmed I could color in that county with a felt-tip marker. So I could quickly see if I needed a county heard on the air. Is anyone aware of a similar commercially available map for the USA that shows grid squares which could be colored in as they were confirmed? How about for Europe or other areas? Thanks. Tom, KØTW ___ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.24/2449 - Release Date: 10/20/09 18:42:00 ___ 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: Grid Square Maps
David Gendle wrote: Tom, I believe that the ARRL is still publishing a book that has the grid squares for the entire world. Might be a bit of an overkill considering what you are looking for but that is your call. 73, Dave - K4DLG The ARRL also has a nice wall map with the North American grids. If someone could do one for AMSAT, it might be a good fundraiser! 73, Drew KO4MA ___ 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] Cute 1.7 re-entry
Cute 1.7 Re-entry Its still up !! Space Track elements for 07:24 this morning (October 21st) assign a Mean Motion of 16.2309 and they have revised their re-entry forecast. Unless something unexpected happens it looks like the only serious contender left in the competition is Dave Bowman G0MRF who predicted October 27th. 73 John G7HIA ___ 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: Grid Square Maps
Back in my county-hunting days I had purchased, from somewhere, a poster size black on white map of the continental USA with all counties shown. As each county was confirmed I could color in that county with a felt-tip marker. So I could quickly see if I needed a county heard on the air. Is anyone aware of a similar commercially available map for the USA that shows grid squares which could be colored in as they were confirmed? How about for Europe or other areas? Thanks. Tom, KØTW Here: http://www.oema.us/files/Amateur_Radio_US_Grid_Square_Map.pdf or create your own: http://www.qsl.net/ve6yp/index.html 73s Jari OH3UW ___ 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: Grid Square Map
Thanks to all that responded to my post I'm looking for something along the size of the grid map that ICOM supplies (12 X 7) but in black and white so confirmed squares could be colored in. The 8 1/2 X 11 maps that I've found online seem too small and the resolution is not good. And, although ARRL chose to show only the cover of it's grid square book, I think the pages inside are in color(?). Tom, KØTW ___ 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: New Kenwood HT for 2010?
Clint, Personally, I would be surprised if Kenwood dedicated a lot of engineering talent to a new, true full-duplex amateur handheld. The profit for them is not in the amateur world - but in the land mobile / commercial arenas. I hope I am wrong, though! At Dayton 5 months ago, Kenwood had posters in their booth announcing a new HT and HF transceiver for the summer of 2010. Of course, there were no details released at that time for either radio. If Kenwood is simply updating the design of the old TH-D7 to be this new HT, that might be their way to minimize RD costs. If they are able to replace the component(s) no longer in production with others, they may not make many other updates in the interests of saving money. The radio was still popular until it was discontinued, and remains popular on the used market now. I picked one up at a hamfest 3 months ago, and still need to make time to play around with it. When the TM-D710 and TM-V71 mobile radios were released, Kenwood only developed one radio box for both of these models. They share the same FCC ID number, and the RC-D710 adds the TNC functionality to the TM-V71 (the RC-D710 does not attach to the TM-V71, unfortunately). Kenwood may be trying to stay in the amateur market, without spending lots of money to do so. It will be interesting to see what this new HT looks like, whenever it sees the light of day (or when someone puts photos of it online). 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ ___ 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] Grid Square Map - Grey Scale
To the gentleman desiring a non-color grid square map ... You can download the Icom grid square map as a .pdf at ... http://www.work-sat.com ... then print it out grey scale ... or otherwise manipulate it in your favorite image/paint program! Clint Bradford, K6LCS ___ 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: Arrow 10W Duplexer Performance Measurements
Hi Bruce, I am afraid you are very much mistaken in your logic here. For mode J on AO51 say, The 5W signal you transmit on 2m will completely drive that 70cm preamp between the antenna and duplexer into saturation unless you put a very good filter on the input (the desense issue). That insertion loss might negate any gains you make on the preamp, increase your noise floor by 20dB and add a lot of hassle, and more importantly weight. Actually, the 1.2dB insertion loss is better than I was expecting and good enough for the short cable run to the HT. It is what it is and its good enough for the job it was intended for. 73's Allan -Original Message- From: Bruce Robertson [mailto:ve9...@gmail.com] Sent: 21 October 2009 02:01 PM To: Allan Saul Cc: amsat-bb@amsat.org Subject: Re: [amsat-bb] Arrow 10W Duplexer Performance Measurements I'm grateful to everyone who has contributed to this discussion. It strikes me that the greatest improvement we could make to hand-held yagis would be to somehow integrate a low noise preamp circuit very close to the 70cm port. I have an indoor-style ARR preamp that I've thought of connecting to the boom with cable ties. A powersupply using AA batteries and a DC to DC buck-boost chip from, e.g., Maxim, would keep the whole thing light. (Alternatively, I see that the max voltage for my ARR is pretty high: I might get away with a pair of Nicad '9v' batteries.) Like so much of amateur radio, it's more of a challenge of construction than anything else. Has anyone experimented with this sort of improvement? 73, VE9QRP Bruce On Wed, Oct 21, 2009 at 8:21 AM, Allan Saul al...@rfdesign.co.za wrote: Quite a lot of guys are using the handy Arrow Model 10W duplexer for the handheld 146/437 antenna and mine arrived here today so I thought I would put it on the network analyser and see how it performs. From the Radio cable to the 2m antenna connector an Insertion Loss of 0.75dB was measured with a rejection of 57dB at 70cm. The VSWR at 2m was 1.24:1 From the Radio cable to the 70cm antenna connector an Insertion Loss of 1.2dB was measured with an attenuation of 56dB on the 2m signal. The VSWR at 70cm was 1.29:1 The VSWR on the 2m port was 1.21:1 and on the 70cm port was 1.20:1 For those guys wanting to look at the actual plots they can be found here http://www.rfdesign.co.za/default.asp?pageID=785423593filePath=D:\SoftPage_V5\files\5645456\Download-Library\Amateur-Radio\ZS1LS\Mode-J-Filter 73's Allan ZS1LS ___ 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: Grid Square Map
Tom, I have a copy of the ARRL grid square atlas, and it's all black and white inside. It shows the entire world, which is helpful for some of the grids you can work on some satellites that are outside what a U.S. map would show. That being said, the grids are very tiny in the atlas. I have a black and white map I can email you. Contact me off the BB if you'd like it. It's a U.S. map. 73, Tim - N3TL From: Tom k...@cox.net To: amsat-bb@amsat.org Sent: Wednesday, October 21, 2009 2:13:02 PM Subject: [amsat-bb] Re: Grid Square Map Thanks to all that responded to my post I'm looking for something along the size of the grid map that ICOM supplies (12 X 7) but in black and white so confirmed squares could be colored in. The 8 1/2 X 11 maps that I've found online seem too small and the resolution is not good. And, although ARRL chose to show only the cover of it's grid square book, I think the pages inside are in color(?). Tom, KØTW ___ 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] grid square maps
Hi : Just go to the hamfests and they give nice color Grid square maps for free. In the last year I get one or two and give them away at the club meetings. Jerry w0sat ___ 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: Arrow 10W Duplexer Performance Measurements
Good point, Allan. Actually, I was especially thinking of doing this in some sort of arrangement that avoided the duplexer, perhaps using an FT-817 on FO-29. Even with the duplexer, there might be some solutions to the problem you present. For instance, one could try making some sort of vox-enabled power switching for the preamp, which turned it off when one began to transmit. Then you'd at least have the benefit of the preamp when you were copying the other station(s). 73, Bruce VE9QRP On Wed, Oct 21, 2009 at 3:32 PM, Allan Saul al...@rfdesign.co.za wrote: Hi Bruce, I am afraid you are very much mistaken in your logic here. For mode J on AO51 say, The 5W signal you transmit on 2m will completely drive that 70cm preamp between the antenna and duplexer into saturation unless you put a very good filter on the input (the desense issue). That insertion loss might negate any gains you make on the preamp, increase your noise floor by 20dB and add a lot of hassle, and more importantly weight. Actually, the 1.2dB insertion loss is better than I was expecting and good enough for the short cable run to the HT. It is what it is and its good enough for the job it was intended for. 73's Allan -Original Message- From: Bruce Robertson [mailto:ve9...@gmail.com] Sent: 21 October 2009 02:01 PM To: Allan Saul Cc: amsat-bb@amsat.org Subject: Re: [amsat-bb] Arrow 10W Duplexer Performance Measurements I'm grateful to everyone who has contributed to this discussion. It strikes me that the greatest improvement we could make to hand-held yagis would be to somehow integrate a low noise preamp circuit very close to the 70cm port. I have an indoor-style ARR preamp that I've thought of connecting to the boom with cable ties. A powersupply using AA batteries and a DC to DC buck-boost chip from, e.g., Maxim, would keep the whole thing light. (Alternatively, I see that the max voltage for my ARR is pretty high: I might get away with a pair of Nicad '9v' batteries.) Like so much of amateur radio, it's more of a challenge of construction than anything else. Has anyone experimented with this sort of improvement? 73, VE9QRP Bruce On Wed, Oct 21, 2009 at 8:21 AM, Allan Saul al...@rfdesign.co.za wrote: Quite a lot of guys are using the handy Arrow Model 10W duplexer for the handheld 146/437 antenna and mine arrived here today so I thought I would put it on the network analyser and see how it performs. From the Radio cable to the 2m antenna connector an Insertion Loss of 0.75dB was measured with a rejection of 57dB at 70cm. The VSWR at 2m was 1.24:1 From the Radio cable to the 70cm antenna connector an Insertion Loss of 1.2dB was measured with an attenuation of 56dB on the 2m signal. The VSWR at 70cm was 1.29:1 The VSWR on the 2m port was 1.21:1 and on the 70cm port was 1.20:1 For those guys wanting to look at the actual plots they can be found here http://www.rfdesign.co.za/default.asp?pageID=785423593filePath=D:\SoftPage_V5\files\5645456\Download-Library\Amateur-Radio\ZS1LS\Mode-J-Filter 73's Allan ZS1LS ___ 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: New Kenwood HT for 2010?
Hi If you want to see it near the end of the video http://picasaweb.google.co.jp/ja7ude/KenwoodBoothAtTokyoHamFair2009#5372938884729290930 If i had to guess, it's prob the least amount of effort to make it ROHS compliant, and maybe tweak a few things that wouldn't run up the $$ drawing heavy on the D7 vs a redesign Looks nice very similar to it's successor On Oct 21, 2009, at 2:14 PM, Patrick STODDARD (WD9EWK/VA7EWK) wrote: Clint, Personally, I would be surprised if Kenwood dedicated a lot of engineering talent to a new, true full-duplex amateur handheld. The profit for them is not in the amateur world - but in the land mobile / commercial arenas. I hope I am wrong, though! At Dayton 5 months ago, Kenwood had posters in their booth announcing a new HT and HF transceiver for the summer of 2010. Of course, there were no details released at that time for either radio. If Kenwood is simply updating the design of the old TH-D7 to be this new HT, that might be their way to minimize RD costs. If they are able to replace the component(s) no longer in production with others, they may not make many other updates in the interests of saving money. The radio was still popular until it was discontinued, and remains popular on the used market now. I picked one up at a hamfest 3 months ago, and still need to make time to play around with it. When the TM-D710 and TM-V71 mobile radios were released, Kenwood only developed one radio box for both of these models. They share the same FCC ID number, and the RC-D710 adds the TNC functionality to the TM-V71 (the RC-D710 does not attach to the TM-V71, unfortunately). Kenwood may be trying to stay in the amateur market, without spending lots of money to do so. It will be interesting to see what this new HT looks like, whenever it sees the light of day (or when someone puts photos of it online). 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ ___ 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 Myles Landstein myles.landst...@gmail.com please note my new email address dti will soon be eliminated , gmail is my new home update your dir ___ 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] SAT STATUS upgrade
Hello I have added more detail to the data stream, and have started adding stats graphs I would also like to make a calender so you can see when the satellites were active. http://vk4tec.no-ip.org/sat_status/ Andrew VK4TEC ___ 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: Arrow 10W Duplexer Performance Measurements
Bruce, Funny this should come up. I was doing some research on what kind of luck folks had with Ramsey preamps and came upon this link... http://www.worldwidedx.com/home-brew-mods/35101-ramsey-pr40-440mhz-preamp-kit.html I don't think this guys application used a diplexer and my 70cm antenna will be strictly receive as well but this struck me as kind of what you were talking about doing with the ARR unit. 73, Michael, W4HIJ Bruce Robertson wrote: I'm grateful to everyone who has contributed to this discussion. It strikes me that the greatest improvement we could make to hand-held yagis would be to somehow integrate a low noise preamp circuit very close to the 70cm port. I have an indoor-style ARR preamp that I've thought of connecting to the boom with cable ties. A powersupply using AA batteries and a DC to DC buck-boost chip from, e.g., Maxim, would keep the whole thing light. (Alternatively, I see that the max voltage for my ARR is pretty high: I might get away with a pair of Nicad '9v' batteries.) Like so much of amateur radio, it's more of a challenge of construction than anything else. Has anyone experimented with this sort of improvement? 73, VE9QRP Bruce On Wed, Oct 21, 2009 at 8:21 AM, Allan Saul al...@rfdesign.co.za wrote: Quite a lot of guys are using the handy Arrow Model 10W duplexer for the handheld 146/437 antenna and mine arrived here today so I thought I would put it on the network analyser and see how it performs. From the Radio cable to the 2m antenna connector an Insertion Loss of 0.75dB was measured with a rejection of 57dB at 70cm. The VSWR at 2m was 1.24:1 From the Radio cable to the 70cm antenna connector an Insertion Loss of 1.2dB was measured with an attenuation of 56dB on the 2m signal. The VSWR at 70cm was 1.29:1 The VSWR on the 2m port was 1.21:1 and on the 70cm port was 1.20:1 For those guys wanting to look at the actual plots they can be found here http://www.rfdesign.co.za/default.asp?pageID=785423593filePath=D:\SoftPage_V5\files\5645456\Download-Library\Amateur-Radio\ZS1LS\Mode-J-Filter 73's Allan ZS1LS ___ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.25/2450 - Release Date: 10/21/09 16:44:00 ___ 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: Cute 1.7 re-entry
My prediction of a month ago was December 19th. John Heath wrote: Cute 1.7 Re-entry Its still up !! Space Track elements for 07:24 this morning (October 21st) assign a Mean Motion of 16.2309 and they have revised their re-entry forecast. Unless something unexpected happens it looks like the only serious contender left in the competition is Dave Bowman G0MRF who predicted October 27th. ___ 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: Grid Square Maps
The ARRL makes a very nice one on 11 x 17 inch paper for $1. It is their #1290. -- KK6MC James Duffey Cedar Crest NM ___ 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: PIC rotator control
On Tue, 2009-10-13 at 21:50 +1000, Andrew Rich wrote: Sometime I wonder if just programming in perl on the LINUX side might be just as easy The PIC microcontrollers are frankly *dreadful*, without a single redeeming feature. What makes me like them even less is that you're forced to use the bloody awful Windows software to program them, and the programming hardware is extremely finicky. There is a PIC assembler that runs under Linux, but it sucks elephants through very fine mesh. I've ditched all my PIC stuff and now use AVR, which is extremely well supported on Windows, Mac OS and Linux. It's a better product, the CPU core is generally faster clock-for-clock and it's only slightly more expensive. How much is your time worth? If you're not convinced yet, buy an Arduino board. You probably couldn't put together an AVR board for less in onesy-twoesy quantities. Gordon MM0YEQ ___ 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] EM-97 West Virginia Operation Saturday 24 Oct
A grid dxpedition to EM97 in West Virginia is planned for Saturday afternoon October 24th. It's about 600 miles round trip so the first pass of AO-27 at 1734z will likely be the beginning of the operation. Then AO-27 at 1912z, AO-27 a 2054z followed by AO-51 at 2200z and possibly 2339z if it's not too dark. West coast stations should try for the 2054z AO-27 pass since the 2339z AO-51 pass could be dropped. West Virginia is very mountainous and it is difficult to find a high point that can see down low to the horizon. That and the fact that there are not that many hams in this grid are likely the cause of it being uncommon. There are no digi's close to where I will operate but there may be coverage from mountaintop digis far away. Track with k8yse-8. I'll also have the ISS APRS radio going which might relay the position to the aprs servers. Unfortunately, there will not be any ISS passes while I'm at the operating location, however, there will be passes in the morning on the way down. The APRS radio is k8yse-9. I will attempt to operate on the way down while in motion. I'll have HF capability on the way, probably on 40 meters most of the time. The weather forecast is for rain and possible thunderstorms. I hope they will not be too severe. As long as it is not lightning, I will operate in the rain somehow. Please email with suggestions and/or schedule requests. As always, no qsl card is necessary. All contacts will be confirmed. 73, John K8YSE ___ 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: Grid Square Map
The ARRL sells a plain black 11x17 inch grid map of North America for $1. No color, no gray scale. Perfect for coloring in the grids as you work/confirm them. http://www.arrl.org/locate/gridinfo.html A smaller version of the map is also in the ARRL Operating Manual and perhaps in the ARRL handbook. I scanned, printed, and laminated the page from my ARRL Operating Manual. Wayne Estes W9AE Oakland, Oregon, USA, CN81ik ___ 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] ANS-294 AMSAT News Service Special Bulletin SumbandilaSat Designated as SO-67
SB SAT @ AMSAT $ANS-294.01 SumbandilaSat Designated as SO-67 AMSAT News Service Bulletin 294.01 From AMSAT HQ SILVER SPRING, MD. October 21, 2009 To All RADIO AMATEURS BID: $ANS-294.01 AMSAT's OSCAR Number Coordinator Bill Tynan, W3XO announced he has received an e-mail sent to the AMSAT-NA Board of Directors by Hans van de Groenendaal, ZS6AKV, Secretary SA AMSAT requesting that an OSCAR number be allocated to SumbandilaSat. In the e-mail Hans states that the amateur radio transponder on SumbandilaSat was successfully switched on from the ground by ZS6BPZ during the test phase on Sunday 18 October 2009 and that several QSOs were made through the transponder. The amateur radio payload on SumbandilaSat was developed by SA AMSAT and incorporated by the University of Stellenbosch into the main pay- load. The SA AMSAT payload was officially coordinated through the IARU Satellite Frequency Coordination Panel with an uplink of 145.880 and downlink of 435.350 MHz Bill replied, Therefore, by the authority vested in me by the AMSAT-NA President, I hereby designate this latest amateur radio satellite as SumbandilaSat Oscar 67 or SO-67. On behalf of AMSAT-NA and the world's amateur radio satellite community I congratulate those responsible for building, testing and launching this new satellite. May it have a long and successful life. [ANS thanks Bill Tynan, W3XO for the above information] /EX ___ 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] the future is coming
http://www.space-travel.com/reports/SpaceX_Completes_First_Stage_9_Engine_Rocket_Firing_999.html Robert WB5MZO _ Hotmail: Trusted email with powerful SPAM protection. http://clk.atdmt.com/GBL/go/177141665/direct/01/ ___ 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
