Just to add onto what Ron has said, the limit in the US is 1500 watts, but there are some restrictions per band, and license level. Details here [ http://www.arrl.org/frequency-allocations ] but below are the important tidbits.
- "Unless otherwise noted, the maximum power output is 1500 watts PEP. Novice/Technicians are limited to 200 watts PEP on HF bands." 60m - "Effective March 5, 2012, amateurs are permitted to use digital modes that comply with emission designator 60H0J2B, which includes PSK31 as well as any RTTY signal with a bandwidth of less than 60 Hz. They may also use modes that comply with emission designator 2K80J2D, which includes any digital mode with a bandwidth of 2.8 kHz or less whose technical characteristics have been documented publicly, per Part 97.309(4) of the FCC Rules. Such modes would include PACTOR I, II or III, 300-baud packet, MFSK16, MT63, Contestia, Olivia, DominoEX and others. with a maximum effective radiated power (ERP) of 100 W. Radiated power must not exceed the equivalent of 100 W PEP transmitter output power into an antenna with a gain of 0 dBd." 30m - "Maximum power, 200 watts PEP. Amateurs must avoid interference to the fixed service outside the US." 10m Novice / Technician - "Maximum power 200 watts PEP" 1.25m - 50w PEP , Novice / Technician 25w PEP 23cm - Novice - 5w max PEP Nate > On Dec 30, 2015, at 4:53 PM, Ron Economos <[email protected]> wrote: > > In Canada, you can use up to 2250 watts PEP output on SSB. > > http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01226.html#p10.2 > > In the US, it's 1500 watts PEP output in any mode. > > The Kuhne Electronic equipment is excellent stuff. It's essentially > commercial equipment that's been re-purposed for the ham bands. In fact, as a > licensed operator, you can purchase their industrial products. For example, > I'm using this amplifier for 70cm digital television. > > http://shop.kuhne-electronic.de/kuhne/en/shop/industrial/prof-power-amplifier/KU+PA+04105025+A++UHF+MOSFETPower+Amplifier/?card=413 > > However, due to the high PAPR of digital waveforms, it only delivers a few > watts of average linear power. > > Ron > > On 12/30/2015 04:26 PM, Kevin McQuiggin wrote: >> The amateur limit is 1000 Watts. Personally I ran 800+ Watts on the 2 >> metre band in the late 1980s for my EME (moonbounce) station. All >> analog, single long-boom Yagi. I used a 2M downconverter and listened >> on my 10M receiver as it was way more sensitive than my 2M rig. >> >> Over about a year's operation I heard about 10 stations via EME and >> worked only 2. Still, that was a very good operational record for a >> single Yagi station of the era. >> >> Possibly relevant to Marcus' and others' warnings, my power amplifier >> did EXPLODE on one occasion due to dried-out filter capacitors. Big >> fireball, and little bits of paper blown right through the amplifier >> case and all over the room. It was spectacular :=/ >> >> My wife tells the story very well: she was in the kitchen and heard this >> big "BOOM". She called upstairs "Is everything alright?" and I calmly >> replied "No problem. Could you bring the fire extinguisher up here please?" >> >> Fortunately no fire, and I replaced the filter capacitors. The >> amplifier was fine - a good bonus, as I had borrowed it from a research >> lab at a local university for a couple of weeks. >> >> With the new weak signal DSP techniques, I hear that 100 Watts and a >> single Yagi will get you many contacts, although the data rate will be >> very low. Still, it works and that is amazing! >> >> I think Daniel was just asking if these German amplifiers are good >> quality. I hear that they are, and that they work very well, although I >> have never used or seen one in person. I hear they stand behind their >> gear, and will also do custom designs. >> >> Kevin (VE7ZD) >> >> >> On 15-12-30 04:03 PM, Johnathan Corgan wrote: >>> On Wed, Dec 30, 2015 at 3:14 PM, James Humphries >>> <[email protected] <mailto:[email protected]>> wrote: >>> >>> I'm on Marcus' side with that output power, that's a scary high >>> output. I start to sweat at 10W... :) >>> >>> >>> Heh, I connected a USRP to a 20KW PA once. Sweating was only one of >>> several things done in anticipation :) >>> >>> -- >>> Johnathan Corgan >>> Corgan Labs - SDR Training and Development Services >>> http://corganlabs.com >>> >>> >>> _______________________________________________ >>> > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
