Sean KX9X posted another introductory article on satellite operating on https://www.onallbands.com/satellite-basics-part-2-making-qsos-via-satellite.... Check it out.
I did have a few exceptions to the advice given, as I believe they suggest less-than-ideal operating practices. Rather than contact Sean directly, I figured it would be worthwhile to post them here. If they're controversial, perhaps it will stimulate some thoughtful discussion. I want to start off by saying that I applaud Sean for providing some very thoughtful contributions to help introduce potential new satellite ops to the birds. My intent is really to provide constructive suggestions for improvement of the advice that we as a community provide to new satellite operators to set them off on the right path.
"Currently, all FM satellites in orbit require a CTCSS (PL) tone of 67.0 Hz on your transmit frequency." Mostly true, but LilacSat-2 and PO-101 don't follow this model.
"These instructions assume you are using a hand-held directional antenna. If you’re using your standard dual-band vertical antenna at home or on the roof of your car, you can ignore those instructions." Oh, man, I really don't think we should be encouraging newbies to try to work satellites using a vertical to receive the downlink. Also, very unsure why vertical antenna ops should ignore any of the rest of the instructions... Maybe okay to use a vertical to transmit, but to receive they really ought to be using an antenna with gain or with the ability to rotate to match polarization, ideally both. Please, let's not encourage more alligators!
"A suggested frequency list of the three active FM satellites at the time of this writing (May 2019) is in Figure 1." Rather than provide yet another frequency list, can't we just reference an authoritative source elsewhere, e.g., on the AMSAT-NA web site? We all remember that recent ARRL article that posted many wrong frequencies; let's try to avoid risking a relapse of that. A frequency list like this can be helpful, so perhaps AMSAT-NA could include a list like this on the Frequency Summary page? FM Satellite Frequency Summary – AMSAT
| | | | FM Satellite Frequency Summary – AMSAT
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"Listen for a QSO to end, then give your callsign and your grid square, using standard phonetics." I don't think we should be suggesting that ops drop their call and grid on a busy FM pass. Unless you've already worked everyone else on the pass, there's really no good reason to just drop your call and grid. Find someone who is solid into the bird and appears to be hearing other stations well, and call them directly. (But not immediately after they've called someone else!) If you've already heard a callsign a couple of times during the pass, it'll also be easier to repeat it on the first try. When you wait until someone calls you, you run the risk of not being able to catch their full call on the first try and needing a fill. I think having the new op initiate the QSO gives them the best chance of having a successful first QSO.
"KX9X: “Whiskey One Alpha Whiskey, thanks, Echo November Five Zero, Illinois, QSL? W1AW: “QSL, Fox November Three One, Connecticut, QSL?”" Much of this back-and-forth is extraneous. KX9X already provided his grid in his first transmission, and W1AW already provided his grid in his first transmission. Neither asked for a fill. Unless a fill is needed, KX9X would normally just end the QSO with his second transmission (KX9X: "W1AW QSL KX9X") which is really the norm. The other commonly heard pattern is when a rover is working from a rare grid. If KX9X is the rover, that first KX9X line in the sample QSO doesn't happen; the rover often announces their grid when responding to a caller, and the rover's transmission is often followed by that of a new caller calling the rover. If we want new ops to recognize when QSOs have ended, it's good for them to know how 95+% of successful QSOs really go down so they can more quickly recognize the pattern. Also, there's generally no need to identify state, unless it's a rare one. CT may be one of the few worth mentioning, but most states are not.
"With one hand holding your radio and the other holding your antenna, how are you going to log your QSOs?" Recording the pass isn't the only way to handle this, and may not even be the best approach for newbies, at least as a primary method. I've posted in the past about the benefits of operating with one's writing hand free, and logging by hand during the pass when receiving, transcribing calls and grids as I hear them. It would be a useful technique to suggest to new ops, particularly those who may not already be experienced phone contesters, as an alternative that might also help to improve their ability to work the pass. Reading a callsign you've already written down can be much easier than recalling one you only heard verbally. I cannot overstate how immensely this practice helped me.
"If you are using two HTs, you will need a diplexer, which isolates your transmitted signal from your receive radio. Without it, you will likely overload the front end of your receive radio, which will make contacts impossible. Several manufacturers such as Comet and MFJ offer diplexers; the Arrow antenna has an optional diplexer that is stored in the antenna handle." I haven't needed any filtering when using two HTs and an Arrow to work AO-91 or AO-92. Also, the BLP-200+ filter may be a useful option to suggest in lieu of those larger diplexers if one is using an Arrow antenna.
73, Ryan AI6DO
Just one thing - while it is a very good idea to refer to a known good frequency list, I have yet to come across such a list on AMSAT.ORG. In fact, I had to search the web for frequencies of some sats. If and when AMSAT would provide such a one pager, I believe others would point to it instead of creating a new one. In fact links to embeddable HTML or XML or JSON copies would help automation for other sites that provide real tracking etc.. Only trying to provide some constructive feedback and hopefully not opening a can of worms. Umesh, k6vug On Saturday, June 8, 2019, 5:22:34 PM PDT, Ryan Noguchi via AMSAT-BB [email protected] wrote: Sean KX9X posted another introductory article on satellite operating on https://www.onallbands.com/satellite-basics-part-2-making-qsos-via-satellite.... Check it out.
I did have a few exceptions to the advice given, as I believe they suggest less-than-ideal operating practices. Rather than contact Sean directly, I figured it would be worthwhile to post them here. If they're controversial, perhaps it will stimulate some thoughtful discussion. I want to start off by saying that I applaud Sean for providing some very thoughtful contributions to help introduce potential new satellite ops to the birds. My intent is really to provide constructive suggestions for improvement of the advice that we as a community provide to new satellite operators to set them off on the right path.
"Currently, all FM satellites in orbit require a CTCSS (PL) tone of 67.0 Hz on your transmit frequency." Mostly true, but LilacSat-2 and PO-101 don't follow this model.
"These instructions assume you are using a hand-held directional antenna. If you’re using your standard dual-band vertical antenna at home or on the roof of your car, you can ignore those instructions." Oh, man, I really don't think we should be encouraging newbies to try to work satellites using a vertical to receive the downlink. Also, very unsure why vertical antenna ops should ignore any of the rest of the instructions... Maybe okay to use a vertical to transmit, but to receive they really ought to be using an antenna with gain or with the ability to rotate to match polarization, ideally both. Please, let's not encourage more alligators!
"A suggested frequency list of the three active FM satellites at the time of this writing (May 2019) is in Figure 1." Rather than provide yet another frequency list, can't we just reference an authoritative source elsewhere, e.g., on the AMSAT-NA web site? We all remember that recent ARRL article that posted many wrong frequencies; let's try to avoid risking a relapse of that. A frequency list like this can be helpful, so perhaps AMSAT-NA could include a list like this on the Frequency Summary page? FM Satellite Frequency Summary – AMSAT
| | | | FM Satellite Frequency Summary – AMSAT
|
|
|
"Listen for a QSO to end, then give your callsign and your grid square, using standard phonetics." I don't think we should be suggesting that ops drop their call and grid on a busy FM pass. Unless you've already worked everyone else on the pass, there's really no good reason to just drop your call and grid. Find someone who is solid into the bird and appears to be hearing other stations well, and call them directly. (But not immediately after they've called someone else!) If you've already heard a callsign a couple of times during the pass, it'll also be easier to repeat it on the first try. When you wait until someone calls you, you run the risk of not being able to catch their full call on the first try and needing a fill. I think having the new op initiate the QSO gives them the best chance of having a successful first QSO.
"KX9X: “Whiskey One Alpha Whiskey, thanks, Echo November Five Zero, Illinois, QSL? W1AW: “QSL, Fox November Three One, Connecticut, QSL?”" Much of this back-and-forth is extraneous. KX9X already provided his grid in his first transmission, and W1AW already provided his grid in his first transmission. Neither asked for a fill. Unless a fill is needed, KX9X would normally just end the QSO with his second transmission (KX9X: "W1AW QSL KX9X") which is really the norm. The other commonly heard pattern is when a rover is working from a rare grid. If KX9X is the rover, that first KX9X line in the sample QSO doesn't happen; the rover often announces their grid when responding to a caller, and the rover's transmission is often followed by that of a new caller calling the rover. If we want new ops to recognize when QSOs have ended, it's good for them to know how 95+% of successful QSOs really go down so they can more quickly recognize the pattern. Also, there's generally no need to identify state, unless it's a rare one. CT may be one of the few worth mentioning, but most states are not.
"With one hand holding your radio and the other holding your antenna, how are you going to log your QSOs?" Recording the pass isn't the only way to handle this, and may not even be the best approach for newbies, at least as a primary method. I've posted in the past about the benefits of operating with one's writing hand free, and logging by hand during the pass when receiving, transcribing calls and grids as I hear them. It would be a useful technique to suggest to new ops, particularly those who may not already be experienced phone contesters, as an alternative that might also help to improve their ability to work the pass. Reading a callsign you've already written down can be much easier than recalling one you only heard verbally. I cannot overstate how immensely this practice helped me.
"If you are using two HTs, you will need a diplexer, which isolates your transmitted signal from your receive radio. Without it, you will likely overload the front end of your receive radio, which will make contacts impossible. Several manufacturers such as Comet and MFJ offer diplexers; the Arrow antenna has an optional diplexer that is stored in the antenna handle." I haven't needed any filtering when using two HTs and an Arrow to work AO-91 or AO-92. Also, the BLP-200+ filter may be a useful option to suggest in lieu of those larger diplexers if one is using an Arrow antenna.
73, Ryan AI6DO _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
Ryan writes:
I've posted in the past about the benefits of operating with one's
writing hand
free, and logging by hand during the pass when receiving, transcribing
calls
and grids as I hear them.
One "trick" I have used is to prepare the "logsheet" ahead of time by writing the satellite name, my grid, the date. etc across the top as the first line. Then write a vertical column of UTC times (just four digits for hour-hour-minute-minute) from AOS to LOS down one side of the page with plenty of space between each minute-line. Starting as AOS, at the top of the page, whenever I hear a callsign, I write down the callsign (and grid if I get that too) even if I know I've already worked this station. They might call you later in the pass and you'll have his call "ready" on the logsheet.
When I have worked someone, I can quickly circle their callsign then draw a line over to the appropriate minute for the QSO and circle the time. This is usually faster (for me at least) than writing the time after working him, and the circled-callsign-line-circled-timestamp adds (for me at least) an extra confirmation that, yes, I actually worked this callsign, not just that I heard this callsign on this pass.
Prepare all of the logsheets for all your passes ahead of time, put them on a clipboard and use a rubber band or clip to hold the bottom of the page to the clipboard just in case it gets windy.
My other suggestion would be to get a tripod or a stand with a big clip and use that to hold your Arrow/cheap yagi/whatever antenna. With a little practice, you can adjust the antenna quickly, re-peak the signal, and you should be good for a short while before you need to touch the antenna again. This will free up the hand that would have been holding the antenna to do other tasks.
73, Douglas KA2UPW/5
On Sat, Jun 8, 2019 at 7:23 PM Ryan Noguchi via AMSAT-BB [email protected] wrote:
Sean KX9X posted another introductory article on satellite operating on https://www.onallbands.com/satellite-basics-part-2-making-qsos-via-satellite.... Check it out.
I did have a few exceptions to the advice given, as I believe they suggest less-than-ideal operating practices. Rather than contact Sean directly, I figured it would be worthwhile to post them here. If they're controversial, perhaps it will stimulate some thoughtful discussion. I want to start off by saying that I applaud Sean for providing some very thoughtful contributions to help introduce potential new satellite ops to the birds. My intent is really to provide constructive suggestions for improvement of the advice that we as a community provide to new satellite operators to set them off on the right path.
"Currently, all FM satellites in orbit require a CTCSS (PL) tone of 67.0 Hz on your transmit frequency." Mostly true, but LilacSat-2 and PO-101 don't follow this model.
"These instructions assume you are using a hand-held directional antenna. If you’re using your standard dual-band vertical antenna at home or on the roof of your car, you can ignore those instructions." Oh, man, I really don't think we should be encouraging newbies to try to work satellites using a vertical to receive the downlink. Also, very unsure why vertical antenna ops should ignore any of the rest of the instructions... Maybe okay to use a vertical to transmit, but to receive they really ought to be using an antenna with gain or with the ability to rotate to match polarization, ideally both. Please, let's not encourage more alligators!
"A suggested frequency list of the three active FM satellites at the time of this writing (May 2019) is in Figure 1." Rather than provide yet another frequency list, can't we just reference an authoritative source elsewhere, e.g., on the AMSAT-NA web site? We all remember that recent ARRL article that posted many wrong frequencies; let's try to avoid risking a relapse of that. A frequency list like this can be helpful, so perhaps AMSAT-NA could include a list like this on the Frequency Summary page? FM Satellite Frequency Summary – AMSAT
| | | | FM Satellite Frequency Summary – AMSAT
|
|
|
"Listen for a QSO to end, then give your callsign and your grid square, using standard phonetics." I don't think we should be suggesting that ops drop their call and grid on a busy FM pass. Unless you've already worked everyone else on the pass, there's really no good reason to just drop your call and grid. Find someone who is solid into the bird and appears to be hearing other stations well, and call them directly. (But not immediately after they've called someone else!) If you've already heard a callsign a couple of times during the pass, it'll also be easier to repeat it on the first try. When you wait until someone calls you, you run the risk of not being able to catch their full call on the first try and needing a fill. I think having the new op initiate the QSO gives them the best chance of having a successful first QSO.
"KX9X: “Whiskey One Alpha Whiskey, thanks, Echo November Five Zero, Illinois, QSL? W1AW: “QSL, Fox November Three One, Connecticut, QSL?”" Much of this back-and-forth is extraneous. KX9X already provided his grid in his first transmission, and W1AW already provided his grid in his first transmission. Neither asked for a fill. Unless a fill is needed, KX9X would normally just end the QSO with his second transmission (KX9X: "W1AW QSL KX9X") which is really the norm. The other commonly heard pattern is when a rover is working from a rare grid. If KX9X is the rover, that first KX9X line in the sample QSO doesn't happen; the rover often announces their grid when responding to a caller, and the rover's transmission is often followed by that of a new caller calling the rover. If we want new ops to recognize when QSOs have ended, it's good for them to know how 95+% of successful QSOs really go down so they can more quickly recognize the pattern. Also, there's generally no need to identify state, unless it's a rare one. CT may be one of the few worth mentioning, but most states are not.
"With one hand holding your radio and the other holding your antenna, how are you going to log your QSOs?" Recording the pass isn't the only way to handle this, and may not even be the best approach for newbies, at least as a primary method. I've posted in the past about the benefits of operating with one's writing hand free, and logging by hand during the pass when receiving, transcribing calls and grids as I hear them. It would be a useful technique to suggest to new ops, particularly those who may not already be experienced phone contesters, as an alternative that might also help to improve their ability to work the pass. Reading a callsign you've already written down can be much easier than recalling one you only heard verbally. I cannot overstate how immensely this practice helped me.
"If you are using two HTs, you will need a diplexer, which isolates your transmitted signal from your receive radio. Without it, you will likely overload the front end of your receive radio, which will make contacts impossible. Several manufacturers such as Comet and MFJ offer diplexers; the Arrow antenna has an optional diplexer that is stored in the antenna handle." I haven't needed any filtering when using two HTs and an Arrow to work AO-91 or AO-92. Also, the BLP-200+ filter may be a useful option to suggest in lieu of those larger diplexers if one is using an Arrow antenna.
73, Ryan AI6DO _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
Thanks, Douglas, I like thinking about ways to continuously improve my operating techniques, and like hearing about other operators' techniques as part of that process.
I log on Post-it notes in real time during the pass. Before the pass starts, I'll prefill it with known or expected rovers. When I hear calls and grids, I write them down. When I complete a QSO, I'll write a sequential number next to the call. If someone calls me who isn't already on the list, I'll write down their call (and grid, if any) while I receive.
After the pass, I'll add any pass details to the Post-it note so I can tell them apart. When I transcribe the QSOs into my Excel workbook, which creates an ADIF file for upload to LoTW, I guesstimate the QSO times based on roughly when in the pass they occurred. I'm probably no more than a minute or two off of reality, but I don't really need to be this precise, as LoTW will match times that are off by longer than the longest pass duration, but it's what I'm used to.
I sometimes record the pass--both ambient sound using my phone and the received downlink on my TH-D74--but almost never need to refer to them. I don't miss having to spend another 12 minutes listening to a 12 minute pass just to transcribe and log.
I can operate hand-free because I have my radios attached to my body in such a way that the display and controls are readily accessible. For FM birds, my Tx HT is clipped to a holster on my belt with the display facing up and the VFO knob facing to my right for easy access by my right hand, and my Rx HT is clipped to my belt. This "holster" is a MOLLE strap magazine pouch that normally holds my phone; the HT clips nicely into the MOLLE straps above my belt. My Tx HT has an earpiece with lapel mic. I press the PTT switch on the lapel mic to transmit, and let it go when I need to write. When I'm working a linear portable, my FT818 is in a shoulder bag with display and control head facing me, and the Rx HT is clipped to the holster mentioned above. The FT-818 has a latching PTT switch separate from the mic that I can hold along with the pen.
This approach also allows me to operate completely pedestrian-mobile so I can move during the pass to clear obstacles and distance myself from local noise sources.
73, Ryan AI6DO
On Monday, June 10, 2019, 8:51:24 AM PDT, Douglas Quagliana [email protected] wrote:
Ryan writes:> I've posted in the past about the benefits of operating with one's writing hand
free, and logging by hand during the pass when receiving, transcribing calls and grids as I hear them.
One "trick" I have used is to prepare the "logsheet" ahead of time by writing the satellite name, my grid, the date. etc across the top as the first line. Then write a vertical column of UTC times (just four digits for hour-hour-minute-minute) from AOS to LOS down one side of the page with plenty of space between each minute-line. Starting as AOS, at the top of the page, whenever I hear a callsign, I write down the callsign (and grid if I get that too) even if I know I've alreadyworked this station. They might call you later in the pass and you'll have his call "ready" on the logsheet.
When I have worked someone, I can quickly circle their callsign then draw a line over to the appropriate minute for the QSO and circle the time. This is usually faster (for me at least) than writing the time after working him, and the circled-callsign-line-circled-timestamp adds (for me at least) an extra confirmation that, yes, I actually worked this callsign, not just that I heard this callsign on this pass. Prepare all of the logsheets for all your passes ahead of time, put them on a clipboard and use a rubber band or clip to hold the bottom of the page to the clipboard just in case it gets windy.
My other suggestion would be to get a tripod or a stand with a big clip and use that to hold your Arrow/cheap yagi/whatever antenna. With a little practice, you can adjust the antenna quickly, re-peak the signal, and you should be good for a short while before you need to touch the antenna again. This will free up the hand that would have been holding the antenna to do othertasks.
73,Douglas KA2UPW/5
participants (3)
-
Douglas Quagliana -
k6vug＠sbcglobal.net -
Ryan Noguchi