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#31
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On Wed, 23 Feb 2005 19:24:05 GMT, Larry W4CSC wrote:
I don't think the amp with the dual 4-1000As will fit through the hatch. There's no 30A - 240VAC to run it on, anyways.... ==================== I have 30 amp 240 on the boat, send it to me for testing. :-) |
#32
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Wayne.B wrote in
news I have 30 amp 240 on the boat, send it to me for testing. :-) That would work if we didn't turn the drive up to far...(c; 60A service would be more comfortable, though. It'll run 6200V at around 950ma at full power. My math is a little fuzzy. That's about a kilowatt, isn't it? The pole pig hooked up backwards for the plate supply is quite noisy at this level. I took a piece of melted RG-8A/U about a foot long to a ham club meeting. It doesn't melt RG-17. All in good fun....back in the 60's a whole bunch of us kept building the monster 4-1000 linears because the tubes/sockets/chimneys were free. When 10 meters was as dead as a doorknob, before 2 meter repeaters, we used to fire them up into the Mosley beams and sit around chewing the rag late at night across town (Sumter, SC, pop about 25000). There was no low-end VHF TV to worry about tearing up. One night in the dead band we had a breaker from Perth, Australia, the only other person we heard across the band. He claimed we were all echoing like mad and 20 over S9. He had a little echo, himself, at 250 watts. We had a great time working him and the hams he'd called locally after first working us. The band wasn't dead, after all, just abandoned. By the way, in SC we have an unwritten ham radio rule. IF there's some kind of official or unofficial net, net control stations are never allowed to run enough power to actually hear them without straining. I never figured that out but it's been that way since I came here as WB4THE back in the mid 60's. Go figure.... |
#33
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Proprietary inasmuch as only SCS makes TNCs for it. PACTOR I is available
on many TNCs but PACTOR II and III are only available via the SCS TNCs. Is it worth having equip that uses Pactor 2 and 3? |
#34
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In article ,
Larry W4CSC wrote: It'll run 6200V at around 950ma at full power. My math is a little fuzzy. That's about a kilowatt, isn't it? No Larry, that's about 6Kw Input....Your amp must me really inefficent if it takes that input to get a Kw output........ Me who knows how to do the math.......... |
#35
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In article ,
halibutslayer wrote: Come to think of it I'm not sure if you even need a MROL if your vessel is volunteerly equipped (not carrying more than 6 passengers, under 300 tons, not a tug over 26ft. etc.) Your boat still has to have proper station license. You will need a Resticted Radiotelephone Operators Permit.....No Test, just money, and good for your Lifetime...... and a Station License. Bruce in alaska -- add a 2 before @ |
#36
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Absolutely! I know that Winlink has stopped supporting PACTOR I and I
suspect that Sailmail has too or will soon. PACTOR I is 100 bits per second. PACTOR-II is 200 bits per second. PACTOR III can go much higher and is adaptive. I generally connectd at around 3400 BPS but it can go a bit higher with a really good signal. Doug wrote in message ... Proprietary inasmuch as only SCS makes TNCs for it. PACTOR I is available on many TNCs but PACTOR II and III are only available via the SCS TNCs. Is it worth having equip that uses Pactor 2 and 3? |
#37
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Larry,
I was under the impression that pactor II or III were far more reliable and allowed faster transmission rates thank PSK31, is that incorrect? Thanks, Todd -- http://www.marinewireless.us http://boatblogger.com Larry W4CSC wrote: The boaters have been sucked into the most overpriced, proprietary-of- course, digital mode, Pactor. It's all nonsense. You can get the finest digital service on HF on the planet called PSK31....without buying more equipment, more modems, more wasted money.... |
#38
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I went with both. An ICOM-M710 enabled for the ham bands. And I had
both Winlink (ham email) and Sailmail. The M710 is one of the few rigs that can do the digital modes, such as PACTOR, at full power. OK Doug thanks When I asked the question "what direction would you go" ..... I meant which rig would you go for.... i.e. a ham rig that can do marine bands.... or a marine rig that can do ham bands I already have my general class ham license..... juts not active for years So.... Im trying to decide what equip to go hence the question abt a ham rig w/marine bands vs the other |
#39
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