sbrook
Premium,Mod
join:2001-12-14
H0H 0H0 | Disappointing
It disappoints me that the ARRL has taken an "I'm alright Jack" attitude to this by saying it doesn't affect amateur frequencies, when in fact it is going to hurt LOTS of other parts of the spectrum. |
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TK Junk Mail
Go ahead, make my day
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join:2002-03-03
Margate City, NJ
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| said by sbrook  :It disappoints me that the ARRL has taken an "I'm alright Jack" attitude to this by saying it doesn't affect amateur frequencies, when in fact it is going to hurt LOTS of other parts of the spectrum. And what activities are going to be impacted by Current's system?
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RadioDoc
Sortofadog
Premium,ExMod 2000-03
join:2000-05-11
Chicago, IL | Read the article: 30-50 MHz
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sporkme
drop the crantini and move it, sister
Premium,MVM
join:2000-07-01
Morristown, NJ
·Optimum Online
| reply to TK Junk Mail
said by TK Junk Mail :And what activities are going to be impacted by Current's system? It's only 3MHz away from CB radio. 
And please, please think about the children and their 49MHz remote controlled toys.
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CoxCable4
Temp banned from BBR more then anyone
join:2002-10-02
PwnZone | lol, I can see someone flying one of those remote control planes-then it goes too close to power lines and drops out of the sky |
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Mactron
el Camino Real
Premium
join:2001-12-16
CM94sv
| reply to sbrook
said by sbrook :It disappoints me that the ARRL has taken an "I'm alright Jack" attitude to this by saying it doesn't affect amateur frequencies, when in fact it is going to hurt LOTS of other parts of the spectrum. Ah but it's NIMBY.  The businesses, federal, state, and local governments, law enforcement agencies, and various industrial radio services can take on the BPL Fan Boys now. 
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RadioDoc
Sortofadog
Premium,ExMod 2000-03
join:2000-05-11
Chicago, IL | reply to CoxCable4
Those generally use 75 MHz.
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CoxCable4
Temp banned from BBR more then anyone
join:2002-10-02
PwnZone | reply to sporkme
I use 1337 mhz |
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RadioDoc
Sortofadog
Premium,ExMod 2000-03
join:2000-05-11
Chicago, IL | No wonder you're always crashing. Does that thing run on Mountain Dew?
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TK Junk Mail
Go ahead, make my day
Premium
join:2002-03-03
Margate City, NJ
clubs:
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| reply to RadioDoc
said by RadioDoc :Read the article: 30-50 MHz I saw that wise guy. What I was asking was what services are affected? And that isn't in the article.
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rf_engineer
join:2003-08-04
USA
| reply to sbrook
said by sbrook :It disappoints me that the ARRL has taken an "I'm alright Jack" attitude to this by saying it doesn't affect amateur frequencies, when in fact it is going to hurt LOTS of other parts of the spectrum. It has been the ARRL's stance from the beginning to strive for protection of amateur radio spectrum only. BPL interests would probably try to invalidate ARRL's issues with BPL and amateur radio spectrum if it started complaining about other services that it had no stake in. I tend to agree with them, though it's sad other services have basically done little to nothing to protect their spectrum.
As I mentioned two articles ago, Current has been very successful with the Cincinnati trial, with no unresolved interference issues. TXU did have an earlier trial with Amperion that had unresolved issues and was deactivated before the FCC could take action. I don't recall TXU ever fessing up to the interference, but their decision to go with Current says a lot. |
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spurious
join:2001-06-09
Florence, OR |  reply to TK Junk Mail
Who uses 30 - 50 MHz? Many State and local Law enforcement agencies and highway maintenance agencies, not to mention a host of other public service agencies and industrial users. |
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Fatal Vector
join:2005-11-26
| reply to rf_engineer
Besides
There really isn't that much use of the 30-50 Mhz "Low band" any more. Most of the state police agencies that used it are long gone to trunked, million dollar Motorola garbage.
Of course, when they finally auction off the analog TV VHF spectrum and move public safety to 700 Mhz, all those million dollar Motorola systems will be so much scrap and the equipment will hit the surplus market. I can see the hams licking their chops now. Mobiles and HT's for a song, trunking systems on the cheap....Hams will finally get to use some of the UHF and microwave spectrum they have. |
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rf_engineer
join:2003-08-04
USA
| reply to TK Junk Mail
Re: Disappointing
said by TK Junk Mail :said by RadioDoc :Read the article: 30-50 MHz I saw that wise guy. What I was asking was what services are affected? And that isn't in the article. Lower VHF TV channels, business two way radio, and in some areas low band VHF public safety. I say "in some areas" as a lot of public safety is now in high band VHF ( ~150 Mhz) and the 800/900 Mhz spectrum. You'll see low band used in more rural areas or in areas with less money or incentives (like frequency congestion) to move public safety to other bands.
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rf_engineer
join:2003-08-04
USA
| reply to Fatal Vector
Re: Besides
said by Fatal Vector :There really isn't that much use of the 30-50 Mhz "Low band" any more. Most of the state police agencies that used it are long gone to trunked, million dollar Motorola garbage. Of course, when they finally auction off the analog TV VHF spectrum and move public safety to 700 Mhz, all those million dollar Motorola systems will be so much scrap and the equipment will hit the surplus market. I can see the hams licking their chops now. Mobiles and HT's for a song, trunking systems on the cheap....Hams will finally get to use some of the UHF and microwave spectrum they have. This is a totally anecdotal statistic (no link provided, standard disclaimers apply ), but I know there's at least one antenna manufacturer that is still pumping out about 2000 low band VHF base station/repeater antennas a year, so there's still a lot of use. Like most things technological, trends are cyclic. You'll see low band VHF become sexy once again after the higher bands get too congested or the county $100M high tech system fails.
I don't see the FCC reallocating UHF or microwave spectrum to hams. Hams have plenty of UHF and microwave to work with now. |
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sbrook
Premium,Mod
join:2001-12-14
H0H 0H0 | reply to rf_engineer
Re: Disappointing
The thing is that it doesn't MATTER what's in the 30-50 MHz spectrum. BPL will create a lot of "splatter", everytime it hits a transformer, ever cable joint etc.
It's a ridiculous technology. |
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raIDERspeed
join:2002-07-26
Soledad, CA | reply to spurious
CHP is still on the VHF low band system |
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aSic
The Ultimate Slutpuppy
Premium
join:2001-05-17
Wakulla, FL
clubs:
| reply to spurious
The American Red Cross uses 47.420Mhz as its primary freq.
My county Sheriffs Ofc uses 460Mhz as primary, but 46, 41, and 42Mhz as tactical channels.
Florida Dept of Corrections uses 45mhz.
Florida Dept of Transportation uses 45 and 47mhz.
Florida Highway Patrol still uses (although not near as much as they used to) 45mhz across the state.
And lets not forget about all the fast food joints. The menuboard->headset freq of 95% of the joints is below 40mhz.
Theres these and a crapload of other agencies that use sub50Mhz for their primary communication, not all of which have the benefit of a large body like the ARRL on their side.
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Transmaster
Don't Blame Me I Voted For Bill and Opus
join:2001-06-20
Cheyenne, WY
edit:
December 28th, @01:52PM
| reply to rf_engineer
Re: Besides
The military is a big user of frequencies in the upper part of this frequency range. I wish they would not pollute the 6 meter region because it has some very interesting propagation characteristics. The 49 mhz area is one I have used when I was in the Army National Guard and we used to be able to talk from Camp Guernsey, Wyoming to Ft Carson, Colorado from our vehicles which is a range of just short of 300 miles. It is a very nice mobile frequency.
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Low voltage Tech's are wimps, Real tech's use 45 pound filament transformers, plate voltages no less then 2400 volts with at least 10 amp's lighting 8877 triodes...BPL I'm coming to get you.
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RadioDoc
Sortofadog
Premium,ExMod 2000-03
join:2000-05-11
Chicago, IL
 ·AT&T Midwest
| reply to TK Junk Mail
Re: Disappointing
said by TK Junk Mail :said by RadioDoc :Read the article: 30-50 MHz I saw that wise guy. What I was asking was what services are affected? And that isn't in the article. Get off your lazy butt and do some research on your own. There are hundreds of different services in that frequency range.
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