Date
1 - 15 of 15
Miles per Watt
|
John Kirby
MPW...E MilesPerWatt/Endorsement Along with this most recent topic.../qrp /log /amp /ant /pwr /etc I hear the cry for a PODXS endorsement "MPW" Surely with as much log checking capability this group already have.... Something like "my six place grid square versus your six place grid" with respect to "my power versus your power" WOULD COULD produce a number related to ?fer long per fort night squared? OR (Miles Per Watt)... HI HI John N3AAZ # 1337 |
|
|
|
David Westbrook
That's a really interesting one to have a leader board for! Unfortunately, i can't provide a report right now .. The checker only loads certain fields form the ADIF logs into the database. Currently I have GRIDSQUARE (worked) and RX_PWR and TX_PWR loading into the checker database... But not the DISTANCE, LAT, or LON fields; and not the MY_GRIDSQUARE, MY_LAT, or MY_LON fields; Need a combination of those to get distance. So bottom line is that currently I cannot query the checker database for distance. I'll need to update it to read in some more fields; but that will only apply to uploads going forward (so still won't be able to query past logs). Not sure of a timeframe -- should be quick once i get to it -- that's the tricky part ;) .. Maybe i'll do an automatic leader board like 24x7/365 or LONP, so we can see what the "best" (wrt MPW) QSO's are. --david KJ4IZW On Sat, Feb 27, 2016 at 8:32 AM, n3aaz_qrp_1@... [070] <070@...> wrote:
|
|
|
|
boat.anchor@...
David
I am not to sure TX PWR and RX PWR would work as I can never be totally sure what my RX PWR really is. I can give you my TX PWR as well as DISTANCE which should make the calculation relatively easier. Barry VA7GEM ---In 070@..., <dwestbrook@...> wrote : That's a really interesting one to have a leader board for! Unfortunately, i can't provide a report right now .. The checker only loads certain fields form the ADIF logs into the database. Currently I have GRIDSQUARE (worked) and RX_PWR and TX_PWR loading into the checker database... But not the DISTANCE, LAT, or LON fields; and not the MY_GRIDSQUARE, MY_LAT, or MY_LON fields; Need a combination of those to get distance. So bottom line is that currently I cannot query the checker database for distance. I'll need to update it to read in some more fields; but that will only apply to uploads going forward (so still won't be able to query past logs). Not sure of a timeframe -- should be quick once i get to it -- that's the tricky part ;) .. Maybe i'll do an automatic leader board like 24x7/365 or LONP, so we can see what the "best" (wrt MPW) QSO's are. --david KJ4IZW |
|
|
|
David Westbrook
RX_PWR would be useful to note 2x QRP; but otherwise you're right that it's not part of MPW calculation .. And maybe it should be KPW, not MPW, to use the "real" unit system :) [side note: ADIF's field is kilometers by definition] --david KJ4IZW On Sat, Feb 27, 2016 at 3:40 PM, boat.anchor@... [070] <070@...> wrote:
|
|
|
|
Paul Butzi <kg7stv@...>
Please, let me advocate *not* mixing measurement systems.
toggle quoted message
Show quoted text
Either stick to SI units (km/w) or if you want American Customary units, by all means go with mile/horsepower. Or perhaps furlong/horsepower? Personally I’d go with km/w since both of those are what’s in the ADIF spec, but I confess that furlong/horsepower has a certain quaint eccentricity I admire. -p KG7STV
73, don’t forget to smile and have fun
|
|
|
|
We use furlong/horsepower at W6NAG …
From: 070@... [mailto:070@...]
Sent: Saturday, February 27, 2016 1:14 PM To: 070@... Subject: Re: [070] Miles per Watt
Please, let me advocate *not* mixing measurement systems.
Either stick to SI units (km/w) or if you want American Customary units, by all means go with mile/horsepower. Or perhaps furlong/horsepower?
Personally I’d go with km/w since both of those are what’s in the ADIF spec, but I confess that furlong/horsepower has a certain quaint eccentricity I admire.
-p KG7STV
|
|
|
|
Les Alverson <kd4sfd2@...>
Yeah, ask NASA how mixing measurement systems went! I prefer during
QSO's outside of the US using kilometers.
toggle quoted message
Show quoted text
Les k4lea 1746 On 2/27/2016 16:13, Paul Butzi
kg7stv@... [070] wrote:
|
|
|
|
boat.anchor@...
Paul
toggle quoted message
Show quoted text
I spent 3yrs in outback Australia and never did get used to seeing outboard engines rated in Watts. Barry VA7GEM ---In 070@..., <kg7stv@...> wrote : Please, let me advocate *not* mixing measurement systems. Either stick to SI units (km/w) or if you want American Customary units, by all means go with mile/horsepower. Or perhaps furlong/horsepower? Personally I’d go with km/w since both of those are what’s in the ADIF spec, but I confess that furlong/horsepower has a certain quaint eccentricity I admire. -p KG7STV 73, don’t forget to smile and have fun
|
|
|
|
For QRP it should be CM/watt :-) From: "boat.anchor@... [070]" <070@...> To: 070@... Sent: Saturday, February 27, 2016 3:47 PM Subject: Re: [070] Miles per Watt Paul I spent 3yrs in outback Australia and never did get used to seeing outboard engines rated in Watts. Barry VA7GEM ---In 070@..., wrote : Please, let me advocate *not* mixing measurement systems. Either stick to SI units (km/w) or if you want American Customary units, by all means go with mile/horsepower. Or perhaps furlong/horsepower? Personally I’d go with km/w since both of those are what’s in the ADIF spec, but I confess that furlong/horsepower has a certain quaint eccentricity I admire. -p KG7STV 73, don’t forget to smile and have fun
|
|
|
|
Steve W3HF
That's not funny! Though if you want to count that way, my QSOs with Duncan ZL3JT using my Small Wonders Lab PSK20 (at 3 watts) and the attic dipole would run at over 482 MILLION cm/W. Maybe it's not that bad... Steve W3HF For QRP it should be CM/watt :-) From: "boat.anchor@... [070]" <070@...> To: 070@... Sent: Saturday, February 27, 2016 3:47 PM Subject: Re: [070] Miles per Watt Paul I spent 3yrs in outback Australia and never did get used to seeing outboard engines rated in Watts. Barry VA7GEM ---In 070@..., wrote : Please, let me advocate *not* mixing measurement systems. Either stick to SI units (km/w) or if you want American Customary units, by all means go with mile/horsepower. Or perhaps furlong/horsepower? Personally I’d go with km/w since both of those are what’s in the ADIF spec, but I confess that furlong/horsepower has a certain quaint eccentricity I admire. -p KG7STV 73, don’t forget to smile and have fun
|
|
|
|
It's the size of the number that counts ! jerry n9avy From: "Stephen Melachrinos w3hf@... [070]" <070@...> To: 070@... Sent: Saturday, February 27, 2016 5:11 PM Subject: Re: Re: [070] Miles per Watt That's not funny! Though if you want to count that way, my QSOs with Duncan ZL3JT using my Small Wonders Lab PSK20 (at 3 watts) and the attic dipole would run at over 482 MILLION cm/W. Maybe it's not that bad... Steve W3HF For QRP it should be CM/watt :-) From: "boat.anchor@... [070]" <070@...> To: 070@... Sent: Saturday, February 27, 2016 3:47 PM Subject: Re: [070] Miles per Watt Paul I spent 3yrs in outback Australia and never did get used to seeing outboard engines rated in Watts. Barry VA7GEM ---In 070@..., wrote : Please, let me advocate *not* mixing measurement systems. Either stick to SI units (km/w) or if you want American Customary units, by all means go with mile/horsepower. Or perhaps furlong/horsepower? Personally I’d go with km/w since both of those are what’s in the ADIF spec, but I confess that furlong/horsepower has a certain quaint eccentricity I admire. -p KG7STV 73, don’t forget to smile and have fun
|
|
|
|
ljl2002@att.net
Steve, Hear Hear! Jerry. I have four contacts with my Aussie friends using a Small Wonder Labs transceiver on 20m running 1.5W into a BB7V up 25 ft.(yep the very same radio that I use for everything else) Oh yeah, two of those contacts were confirmed long path. Do the math for me. How many cm's is that? I just smoked my calculator! Still doin QRP on PSK. Git along there little doggies! Joe KA1PPV #1482 On Saturday, February 27, 2016 7:00 PM, "Jerry n9avy@... [070]" <070@...> wrote: It's the size of the number that counts ! jerry n9avy From: "Stephen Melachrinos w3hf@... [070]" <070@...> To: 070@... Sent: Saturday, February 27, 2016 5:11 PM Subject: Re: Re: [070] Miles per Watt That's not funny! Though if you want to count that way, my QSOs with Duncan ZL3JT using my Small Wonders Lab PSK20 (at 3 watts) and the attic dipole would run at over 482 MILLION cm/W. Maybe it's not that bad... Steve W3HF For QRP it should be CM/watt :-) From: "boat.anchor@... [070]" <070@...> To: 070@... Sent: Saturday, February 27, 2016 3:47 PM Subject: Re: [070] Miles per Watt Paul I spent 3yrs in outback Australia and never did get used to seeing outboard engines rated in Watts. Barry VA7GEM ---In 070@..., wrote : Please, let me advocate *not* mixing measurement systems. Either stick to SI units (km/w) or if you want American Customary units, by all means go with mile/horsepower. Or perhaps furlong/horsepower? Personally I’d go with km/w since both of those are what’s in the ADIF spec, but I confess that furlong/horsepower has a certain quaint eccentricity I admire. -p KG7STV 73, don’t forget to smile and have fun
|
|
|
|
Paul Butzi <kg7stv@...>
The Small Wonder Labs xceiver sounds so interesting and yet is apparently no longer available. Are there currently available alternatives?
toggle quoted message
Show quoted text
It seems to me that somehow the gain of the antenna system ought to be factored in to the entire km/watt discussion. -p KG7STV
73, don’t forget to smile and have fun
|
|
|
|
ljl2002@att.net
Paul, Unfortunately not unless you are able to snag one on the usual ham sites, hamfest or Ebay. They are rarer than hens teeth to find now. I think that there would be a great market for it if someone would pick up the line. I know I would be in. For me there is nothing like the feeling of being able to communicate worldwide with something that you built. Joe KA1PPV #1482 On Monday, February 29, 2016 12:51 PM, "Paul Butzi kg7stv@... [070]" <070@...> wrote: The Small Wonder Labs xceiver sounds so interesting and yet is apparently no longer available. Are there currently available alternatives? It seems to me that somehow the gain of the antenna system ought to be factored in to the entire km/watt discussion. -p KG7STV
73, don’t forget to smile and have fun
|
|
|
|
About the time that the Small Wonders PSK Series went out of production, I had email exchanges with Dave Benson as I was mightly interested in these kits. That back and forth is now nicely summarized with his webpage at smallwonderlabs.qrpradio.org "Are you interested in taking over the PSK-Series?" I think Dave made the right decision...the PSK Series time was past.
What was and is a fabulous product has become (like many other ham items - The IMD Meter by kk7uq for example) the victim of the march of technology and parts obsolesence. If you can find one (or even better - a complete but unassembeld kit!) buy it. I do see them for sale very occasionally on the ham classified sites but have never managed to snag one. A tip of the hat to Dave Benson K1SWL and the "Small Wonders" that came out of his lab! Rick - N7WE - #1602 |
|
|