Re: [AMRadio] Fw: AM IARU Region 2 Bandplan DAMAGE CONTROL
This was first announced on March 4, 2010. Same news. See: http://www.arrl.org/news/stories/2010/03/04/11374/?nc=1 Pete, wa2cwa On Wed, 17 Mar 2010 23:26:04 -0700 (PDT) screwdriver writes: > DAMAGE CONTROL > > > SB QST @ ARL $ARLB010 > ARLB010 ARRL Seeks Input for New IARU Region 2 Band Plan > > ZCZC AG10 > QST de W1AW > ARRL Bulletin 10 ARLB010 > >From ARRL Headquarters > Newington CT March 16, 2010 > To all radio amateurs > > SB QST ARL ARLB010 > ARLB010 ARRL Seeks Input for New IARU Region 2 Band Plan __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[AMRadio] Fw: AM IARU Region 2 Bandplan DAMAGE CONTROL
DAMAGE CONTROL SB QST @ ARL $ARLB010 ARLB010 ARRL Seeks Input for New IARU Region 2 Band Plan ZCZC AG10 QST de W1AW ARRL Bulletin 10 ARLB010 >From ARRL Headquarters Newington CT March 16, 2010 To all radio amateurs SB QST ARL ARLB010 ARLB010 ARRL Seeks Input for New IARU Region 2 Band Plan The International Amateur Radio Region 2 (IARU R2) conference -- held later this year in El Salvador -- brings together delegations from the national Amateur Radio Societies in the Western Hemisphere. One of the topics on the agenda will be the Region 2 HF band plan. This band plan is "harmonized with" -- spectrum management-speak for "very similar to" -- the IARU Region 1 and Region 3 band plans. According to ARRL President Kay Craigie, N3KN, many hams in the USA probably did not know there was such as thing as a Region 2 band plan until recently. Now, however, many more American hams have heard of it, but may not know how -- if at all -- this band plan affects them. Here are important facts for American hams to keep in mind: * IARU band plans are voluntary guidelines. They do not have the force of FCC regulations. * It would be inappropriate to incorporate Region 2 band plans into the FCC rules, and the ARRL has no plan to petition the FCC to do so. * Most other countries do not have the detailed sub-band regulations that are in Part 97 of the FCC Rules; for amateurs in those countries, IARU band plans offer the only guidance on frequency use. * The recognition of a calling frequency or band segment for a particular purpose or mode in the IARU band plan does not convey any special rights or exclusivity of use. A new, more transparent procedure will be followed this year for considering possible changes to the Region 2 band plan. The ARRL is cooperating with this procedure by inviting input to be se! nt to th e ARRL Board of Directors' Band Planning Committee. The committee will review the existing Region 2 band plan, consider input from the amateur community and make recommendations to the ARRL Board for submission to IARU Region 2. The inadvertent omission of the AM center of activity frequency (calling frequency) -- 3.885 MHz on 80 meters -- has already been noted, and this will be one of the recommended revisions. The deadline line set by Region 2 for gathering input and formulating recommendations is rather short. Amateurs who would like to submit input should take the following steps: * First, study the existing IARU Region 2 band plan posted on the Region 2 Web site at http://www.iaru- r2.org/band- plan. The Region 1 and Region 3 band plans are also posted there, so be sure you are looking at the band plan for Region 2. * Next, formulate a clear statement of any change you propose. Include a brief explanation of why you think the change would be beneficial. Please include your name and call sign in your input. * Finally, send your input via e-mail to bandplan2010@ arrl.org no later than April 5, 2010. Messages will be automatically acknowledged. If you live in another country in Region 2, please contact your national Amateur Radio Society for information on how to submit input for the band plan process. /EX __._,_.___ __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[AMRadio] fuzzies on the 80 meter band
This recent discussion kind of hit home today. My shack is self contained and about 25 ft. from the back of my house. About 3 months ago the power company hired a tree trimming company to clear branches from near the power line service in the area near where we live. They have almost finished the job in a 5 mile radius when I noticed that a lot of the noise I had been hearing disappeared. About 3 weeks ago a real loud buzz saw signal appeared on 3.730 or so and extended up to near 3.775. It was terrible and kind of made me mad. So finally today I had the time and inclination to see if it originated in the house. I used a small Sony SW receiver and put the antenna all the way down and started sniffing. The noise was almost non-existent at the service entrance so I kept looking. Finally I found that my Zoom ADSL modem seemed to be the point of origin. When I unplugged it, the noise went away completely. Thinking it was the wart, I put another on it and the noise came back somewhat. I had another modem sitting here so I changed and now the band is clear again. I noticed on the label that the wart sticker said it is Rohs compliant. So my guess both it and the modem might have grown tin whiskers. I just wonder if I have avoided a potential house fire in addition to clearing a real buzz saw. Boy do I hate progress. Jim/W5JO __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] 5000 Watt AM transmitter for sale
HI Neal: are you located any where near Ohio? those are PDM or something like that, correct? Bernie- Original Message - From: "Neal Newman" To: "Discussion of AM Radio in the Amateur Service" Sent: Wednesday, March 17, 2010 7:42 PM Subject: Re: [AMRadio] 5000 Watt AM transmitter for sale Its a 3 phase transmitter. I have one at work we are looking to unl;oad also... --- On Wed, 3/17/10, ke5...@aol.com wrote: > From: ke5...@aol.com > Subject: Re: [AMRadio] 5000 Watt AM transmitter for sale > To: kf5...@arrl.net, amradio@mailman.qth.net > Date: Wednesday, March 17, 2010, 8:16 AM > whats the location and whats the > price? > > > > > > -Original Message- > From: Brian Zwiener > To: amradio@mailman.qth.net > Sent: Tue, Mar 16, 2010 11:21 pm > Subject: [AMRadio] 5000 Watt AM transmitter for sale > > > 5000 Watt AM transmitter for saleHarris MW5 Specifications > ower Input:208/230 Vac, 60 Hz closed Delta or 380 Vac, 50 > Hz Wye. > ower Consumption: 9.4 kVA at 5000 watts carrier and no > modulation.13.0 kVA at > 000 watts carrier and 100% modulation. > udio Input:10 dBm 2 dB, 600/150 ohms balanced. > udio Frequency Response > 1 dB from 20 to 10,000 Hz at 95% > odulation. > udio Frequency Distortion > ess than 2% at 20 to 10,000 Hz, 95% modulation. > ower Output > ated 5000 watts. Power reduction to 1000 watts > purious Output > eets or exceeds FCC and CCIR re quirements. > F Frequency Range > 35 kHz to 1605 kHz. > F Output Impedance > 0/300 ohms, as specified. > F Harmonics > 80 dB. Meets or exceeds FCC or CCIR specifications. > arrier Shift > ess than 2% at 100% modulation. > oise (Unweighted) > 0 dB or better below 100% modula tion at 5000 watts > output. > ositive Peak Capability > 25% positive peak program modulation capability at 5600 > watts. > ower Factor > 5% > ubes > odulator - 4CX3000A > ower Amplifier - 3CX2500F3 > ECHANICAL > eight > 8 inches (198.12 cm) > idth > 2 inches (182.88 cm) > epth > 2 inches (81.28 cm) > eight: > npacked > 250 pounds (566.99 kg) > xport Packed > 850 pounds (839.15 kg), > omestic Packed > 600 pounds (727.75 kg), > ubic Area > 20 cubic feet meters), packed (3.398 cubic feet) > NVIRONMENTAL > emperature > 20° to +500C (-4° to +1220F) > umidity > to 95% > ltitude > to 7500 feet (2286 meters) > IR VOLUME > 000 CFM > EMPERATURE RISE (Air) > °C > ISSIPATION > .1 KW, 17,496 BTUH > ABINET THERMAL RADIATION > 50W (estimated) > F5CCN Ham Shack NewHam Radio Discussion Group > _ > ur Main Website: http://www.amfone.net > MRadio mailing list > earchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ > ist Rules (must read!): http://w5ami.net/amradiofaq.html > ist Home: http://mailman.qth.net/mailman/listinfo/amradio > ost: AMRadio@mailman.qth.net > o unsubscribe, send an email to amradio-requ...@mailman.qth.net > with > he word unsubscribe in the message body. > This list hosted by: http://www.qsl.net > lease help support this email list: http://www.qsl.net/donate.html > > __ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio@mailman.qth.net > To unsubscribe, send an email to amradio-requ...@mailman.qth.net > with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] FCC Non-cooperation (was ILLEGAL STUFF ON E BAY)
What is to interfere with? All radio stuff is going 900 MHz or higher, cable satellite or fiber feed, spread spectrum, phasing noise and interference null, etc. No one listens to AM anymore, or even FM much. You think anyone is going to worry about ham radio? I don't think so... Brett - Original Message - From: "Paul Christensen" To: ; "Discussion of AM Radio in the Amateur Service" Sent: Wednesday, March 17, 2010 12:56 PM Subject: Re: [AMRadio] FCC Non-cooperation (was ILLEGAL STUFF ON E BAY) >> Still, the intent of Part 15 is to protect licensed users from >> interference from unlicensed devices, and the best option we have to >> enforce current regulations (or potentially get better ones) is to >> continue to elevate our concerns to the FCC and those who oversee the >> agency. >> >> 73, Bob W9RAN > > Excellent advise, Bob. Part 15 needs to get current with the times. As > more consumers replace their household appliances with models that > incorporate RFI/EMI emitting technology, the problem will only become > worse. > The certification section was last re-written at time when nearly all of > our > major household appliances did not contain SMPS and microprocessors. > > Today, household "appliances" are exempt from Part 15 certification and > problems associated with these unintentional radiators are dealt with > after > they generate interference to licensed services. The FCC could help > itself > in this matter with a rule change that includes appliances in the > certification requirement. A bit of time spent on a rule change would pay > great dividends in reducing their time spent on the enforcement effort. > > Paul, W9AC > > __ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio@mailman.qth.net > To unsubscribe, send an email to amradio-requ...@mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] FCC Non-cooperation (was ILLEGAL STUFF ON E BAY)
I'll bet there is _a lot_ of money in the hands of industry lobbyists who badly want that rule to not change. rob K5UJ On Wed, Mar 17, 2010 at 11:56 AM, Paul Christensen wrote: >> Still, the intent of Part 15 is to protect licensed users from >> interference from unlicensed devices, and the best option we have to >> enforce current regulations (or potentially get better ones) is to >> continue to elevate our concerns to the FCC and those who oversee the >> agency. >> >> 73, Bob W9RAN > > Excellent advise, Bob. Part 15 needs to get current with the times. As > more consumers replace their household appliances with models that > incorporate RFI/EMI emitting technology, the problem will only become worse. > The certification section was last re-written at time when nearly all of our > major household appliances did not contain SMPS and microprocessors. > > Today, household "appliances" are exempt from Part 15 certification and > problems associated with these unintentional radiators are dealt with after > they generate interference to licensed services. The FCC could help itself > in this matter with a rule change that includes appliances in the > certification requirement. A bit of time spent on a rule change would pay > great dividends in reducing their time spent on the enforcement effort. > > Paul, W9AC > > __ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio@mailman.qth.net > To unsubscribe, send an email to amradio-requ...@mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] Schematic needed
Dick, was this you: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180478413464 if so congratulations, it is a nice looking one. 73 Rob K5UJ On Wed, Mar 17, 2010 at 5:23 PM, RICHARD GEORGE wrote: > I need a schematic for an early Johnson Ranger. I have the later schematic > but it is some what different then the transmitter I'm working on. > The differnce is in the keying circuits. > The Orignal BAMA site shows that schematic being there, the mirrored site > does not. The orignal site is down. > Any help would be appreciated. > Thanks > > K6KWQ Dick > Amps by "MORE POWER" > > __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] 5000 Watt AM transmitter for sale
Its a 3 phase transmitter. I have one at work we are looking to unl;oad also... --- On Wed, 3/17/10, ke5...@aol.com wrote: > From: ke5...@aol.com > Subject: Re: [AMRadio] 5000 Watt AM transmitter for sale > To: kf5...@arrl.net, amradio@mailman.qth.net > Date: Wednesday, March 17, 2010, 8:16 AM > whats the location and whats the > price? > > > > > > -Original Message- > From: Brian Zwiener > To: amradio@mailman.qth.net > Sent: Tue, Mar 16, 2010 11:21 pm > Subject: [AMRadio] 5000 Watt AM transmitter for sale > > > 5000 Watt AM transmitter for saleHarris MW5 Specifications > ower Input:208/230 Vac, 60 Hz closed Delta or 380 Vac, 50 > Hz Wye. > ower Consumption: 9.4 kVA at 5000 watts carrier and no > modulation.13.0 kVA at > 000 watts carrier and 100% modulation. > udio Input:10 dBm 2 dB, 600/150 ohms balanced. > udio Frequency Response > 1 dB from 20 to 10,000 Hz at 95% > odulation. > udio Frequency Distortion > ess than 2% at 20 to 10,000 Hz, 95% modulation. > ower Output > ated 5000 watts. Power reduction to 1000 watts > purious Output > eets or exceeds FCC and CCIR re quirements. > F Frequency Range > 35 kHz to 1605 kHz. > F Output Impedance > 0/300 ohms, as specified. > F Harmonics > 80 dB. Meets or exceeds FCC or CCIR specifications. > arrier Shift > ess than 2% at 100% modulation. > oise (Unweighted) > 0 dB or better below 100% modula tion at 5000 watts > output. > ositive Peak Capability > 25% positive peak program modulation capability at 5600 > watts. > ower Factor > 5% > ubes > odulator - 4CX3000A > ower Amplifier - 3CX2500F3 > ECHANICAL > eight > 8 inches (198.12 cm) > idth > 2 inches (182.88 cm) > epth > 2 inches (81.28 cm) > eight: > npacked > 250 pounds (566.99 kg) > xport Packed > 850 pounds (839.15 kg), > omestic Packed > 600 pounds (727.75 kg), > ubic Area > 20 cubic feet meters), packed (3.398 cubic feet) > NVIRONMENTAL > emperature > 20° to +500C (-4° to +1220F) > umidity > to 95% > ltitude > to 7500 feet (2286 meters) > IR VOLUME > 000 CFM > EMPERATURE RISE (Air) > °C > ISSIPATION > .1 KW, 17,496 BTUH > ABINET THERMAL RADIATION > 50W (estimated) > F5CCN Ham Shack NewHam Radio Discussion Group > _ > ur Main Website: http://www.amfone.net > MRadio mailing list > earchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ > ist Rules (must read!): http://w5ami.net/amradiofaq.html > ist Home: http://mailman.qth.net/mailman/listinfo/amradio > ost: AMRadio@mailman.qth.net > o unsubscribe, send an email to amradio-requ...@mailman.qth.net > with > he word unsubscribe in the message body. > This list hosted by: http://www.qsl.net > lease help support this email list: http://www.qsl.net/donate.html > > __ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio@mailman.qth.net > To unsubscribe, send an email to amradio-requ...@mailman.qth.net > with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[AMRadio] Schematic needed
I need a schematic for an early Johnson Ranger. I have the later schematic but it is some what different then the transmitter I'm working on. The differnce is in the keying circuits. The Orignal BAMA site shows that schematic being there, the mirrored site does not. The orignal site is down. Any help would be appreciated. Thanks K6KWQ Dick Amps by "MORE POWER" __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] FCC Non-cooperation (was ILLEGAL STUFF ON E BAY)
> Still, the intent of Part 15 is to protect licensed users from > interference from unlicensed devices, and the best option we have to > enforce current regulations (or potentially get better ones) is to > continue to elevate our concerns to the FCC and those who oversee the > agency. > > 73, Bob W9RAN Excellent advise, Bob. Part 15 needs to get current with the times. As more consumers replace their household appliances with models that incorporate RFI/EMI emitting technology, the problem will only become worse. The certification section was last re-written at time when nearly all of our major household appliances did not contain SMPS and microprocessors. Today, household "appliances" are exempt from Part 15 certification and problems associated with these unintentional radiators are dealt with after they generate interference to licensed services. The FCC could help itself in this matter with a rule change that includes appliances in the certification requirement. A bit of time spent on a rule change would pay great dividends in reducing their time spent on the enforcement effort. Paul, W9AC __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] FCC Non-cooperation (was ILLEGAL STUFF ON E BAY)
Not to detract from Steve's point, because I agree that RFI from unintentional radiators is a major problem for hams, especially those who enjoy full-range AM audio on HF. But it's important to understand how the FCC approaches the wide range of Part 15 issues - here are a couple of good resources: FCC: http://www.fcc.gov/oet/ea/procedures.html#sec1 ARRL: http://www.arrl.org/tis/info/part15.html#Myths An A2LA-certified RF test lab: www.radiomet.com/documents/FCC_Guide.pdf Once you're familiar with the terminology used to characterize unlicensed devices, I think most will agree that our problems stem primarily from both Class A (intended for commercial, industrial, and business use) and B (residential) Unintentional Radiators. This can involve both Conducted (interference that is carried along power lines and other conductors to other devices, i.e. our receivers) and Radiated emissions (what Steve measured with his spectrum analyzer). The vast majority of such devices are subject to Verification, which is the lowest level of compliance. Manufacturers are on the "honor system" to do the appropriate testing and label the product accordingly. Even when manufacturers make a good faith effort to comply with Part 15 Verification requirements, the real world implementation may not reflect what was seen in the laboratory. Take for example the noisy LED traffic light that Steve posted about some time ago. Suppose the manufacturer recommended that shielded cable be used between the switchmode controller and the lights to mitigate radiated RFI, but the installers just re-used the unshielded wires that were used for the old incandescent systems. Instant antenna! As hams, we know the length of the wires and whether they're run inside a metal pole or along the side of a wooden one will make a big difference also. Just a made-up example to show that the problem may often not be as simple as going back on the manufacturer of one of the devices in question. Still, the intent of Part 15 is to protect licensed users from interference from unlicensed devices, and the best option we have to enforce current regulations (or potentially get better ones) is to continue to elevate our concerns to the FCC and those who oversee the agency. 73, Bob W9RAN __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] 5000 Watt AM transmitter for sale
Brian Zwiener wrote: > 5000 Watt AM transmitter for saleHarris MW5 Where is it located and what frequency is it on now? -- 73, Kevin Raper KJ4HYD CE WCKI WQIZ There is no limitation to the fidelity of AM radio. From a mathematical standpoint, AM does better in frequency response than FM. - Leonard Kahn __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] 5000 Watt AM transmitter for sale
whats the location and whats the price? -Original Message- From: Brian Zwiener To: amradio@mailman.qth.net Sent: Tue, Mar 16, 2010 11:21 pm Subject: [AMRadio] 5000 Watt AM transmitter for sale 5000 Watt AM transmitter for saleHarris MW5 Specifications ower Input:208/230 Vac, 60 Hz closed Delta or 380 Vac, 50 Hz Wye. ower Consumption: 9.4 kVA at 5000 watts carrier and no modulation.13.0 kVA at 000 watts carrier and 100% modulation. udio Input:10 dBm 2 dB, 600/150 ohms balanced. udio Frequency Response 1 dB from 20 to 10,000 Hz at 95% odulation. udio Frequency Distortion ess than 2% at 20 to 10,000 Hz, 95% modulation. ower Output ated 5000 watts. Power reduction to 1000 watts purious Output eets or exceeds FCC and CCIR re quirements. F Frequency Range 35 kHz to 1605 kHz. F Output Impedance 0/300 ohms, as specified. F Harmonics 80 dB. Meets or exceeds FCC or CCIR specifications. arrier Shift ess than 2% at 100% modulation. oise (Unweighted) 0 dB or better below 100% modula tion at 5000 watts output. ositive Peak Capability 25% positive peak program modulation capability at 5600 watts. ower Factor 5% ubes odulator - 4CX3000A ower Amplifier - 3CX2500F3 ECHANICAL eight 8 inches (198.12 cm) idth 2 inches (182.88 cm) epth 2 inches (81.28 cm) eight: npacked 250 pounds (566.99 kg) xport Packed 850 pounds (839.15 kg), omestic Packed 600 pounds (727.75 kg), ubic Area 20 cubic feet meters), packed (3.398 cubic feet) NVIRONMENTAL emperature 20° to +500C (-4° to +1220F) umidity to 95% ltitude to 7500 feet (2286 meters) IR VOLUME 000 CFM EMPERATURE RISE (Air) °C ISSIPATION .1 KW, 17,496 BTUH ABINET THERMAL RADIATION 50W (estimated) F5CCN Ham Shack NewHam Radio Discussion Group _ ur Main Website: http://www.amfone.net MRadio mailing list earchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ ist Rules (must read!): http://w5ami.net/amradiofaq.html ist Home: http://mailman.qth.net/mailman/listinfo/amradio ost: AMRadio@mailman.qth.net o unsubscribe, send an email to amradio-requ...@mailman.qth.net with he word unsubscribe in the message body. This list hosted by: http://www.qsl.net lease help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] 5000 Watt AM transmitter for sale
Man i would love to have that. Just reading about it i know i cant afford it. -Original Message- From: Brian Zwiener Sent: Tuesday, March 16, 2010 23:21 To: amradio@mailman.qth.net Subject: [AMRadio] 5000 Watt AM transmitter for sale 5000 Watt AM transmitter for saleHarris MW5 Specifications Power Input:208/230 Vac, 60 Hz closed Delta or 380 Vac, 50 Hz Wye. Power Consumption: 9.4 kVA at 5000 watts carrier and no modulation.13.0 kVA at 5000 watts carrier and 100% modulation. Audio Input:10 dBm 2 dB, 600/150 ohms balanced. Audio Frequency Response +1 dB from 20 to 10,000 Hz at 95% modulation. Audio Frequency Distortion Less than 2% at 20 to 10,000 Hz, 95% modulation. Power Output Rated 5000 watts. Power reduction to 1000 watts Spurious Output Meets or exceeds FCC and CCIR re quirements. RF Frequency Range 535 kHz to 1605 kHz. RF Output Impedance 50/300 ohms, as specified. RF Harmonics -80 dB. Meets or exceeds FCC or CCIR specifications. Carrier Shift Less than 2% at 100% modulation. Noise (Unweighted) 60 dB or better below 100% modula tion at 5000 watts output. Positive Peak Capability 125% positive peak program modulation capability at 5600 watts. Power Factor 95% Tubes Modulator - 4CX3000A Power Amplifier - 3CX2500F3 MECHANICAL Height 78 inches (198.12 cm) Width 72 inches (182.88 cm) Depth 32 inches (81.28 cm) Weight: Unpacked 1250 pounds (566.99 kg) Export Packed 1850 pounds (839.15 kg), Domestic Packed 1600 pounds (727.75 kg), Cubic Area 120 cubic feet meters), packed (3.398 cubic feet) ENVIRONMENTAL Temperature -20° to +500C (-4° to +1220F) Humidity 0 to 95% Altitude 0 to 7500 feet (2286 meters) AIR VOLUME 1000 CFM TEMPERATURE RISE (Air) 9°C DISSIPATION 5.1 KW, 17,496 BTUH CABINET THERMAL RADIATION 250W (estimated) KF5CCN Ham Shack NewHam Radio Discussion Group __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
