Now if only I had my radio anymore... oh, and I got off my butt and got a license.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -------------------------------------------------- From: "Mike" <m...@aweiowa.com> Sent: Tuesday, October 27, 2009 12:55 PM To: "WISPA General List" <wireless@wispa.org> Subject: Re: [WISPA] Amateur repeater on a wisp tower -- gotchas? > Yes the split is 5, my fingers typed 6. The repeater frequency is > 444.000 with a standard 5 MHz offset to 449.000. The tone will be > 114.8. So, if you are ever driving down Hwy 30 between Cedar Rapids > and Marshalltown, you are welcome to use it; it is an open repeater. > > > > At 12:42 PM 10/27/2009, you wrote: >>Depends on the band... For UHF 440 MHz, the split is usually 5 MHz (same >>as >>LMR in the UHF band). For VHF 144 MHz, the split in the US is 600 KHz >>(0.600 >>MHz). >> >>Typical voice channel bandwidth is under 20 KHz for wideband and less than >>12.5 KHz for narrowband operation... A far cry from the 5 and 10 MHz >>channels of 802.11x operation :) >> >>On Tue, Oct 27, 2009 at 11:39 AM, Mike <m...@aweiowa.com> wrote: >> >> > Josh: >> > >> > Amateur operators, besides talking world wide on HF frequencies, have >> > primary allocations in various slots in the spectrum. Besides 440 >> > (UHF) there is 144 MHz (2 meter VHF), and 220 MHz (VHF). 2 meter and >> > 70 cm repeaters are common in the ham world. What happens is an >> > operator is able to talk to the repeater on the input frequency, and >> > the equipment transmits on another frequency. So, low powered hand >> > held devices (or mobile devices) can talk a great distance with low >> > power, THROUGH the repeater instead of station-to-station, which >> > would be simplex. The repeater equipment we are using has a built-in >> > cavity so the same coax and antenna can be used for transmit and >> > receive at the same time. There is a 6MHz separation between >> > transmit and receive frequencies. >> > >> > Mike >> > >> > At 12:29 PM 10/27/2009, you wrote: >> > >Can you please explain "2 meter ham gear"? >> > > >> > >Josh Luthman >> > >Office: 937-552-2340 >> > >Direct: 937-552-2343 >> > >1100 Wayne St >> > >Suite 1337 >> > >Troy, OH 45373 >> > > >> > >"When you have eliminated the impossible, that which remains, however >> > >improbable, must be the truth." >> > >--- Sir Arthur Conan Doyle >> > > >> > > >> > >On Tue, Oct 27, 2009 at 10:37 AM, Kurt Fankhauser <k...@wavelinc.com> >> > wrote: >> > > >> > > > In my experiences with 2 meter ham gear that is around Ethernet >> > > > there >> > is a >> > > > lot of interference from the Ethernet to the ham guys stuff. I've >> > > > never >> > > > seen >> > > > the ham guys cause interference though to any wifi gear. >> > > > >> > > > Ham guys are a whole different breed of folk and depending on how >> > > > these >> > > > ones >> > > > your talking to are they may be an invaluable asset to you or they >> > > > may >> > be >> > > > your worst nightmare. The ones around my area are the later and >> > > > anyone >> > that >> > > > gets involved with them end up regretting it later down the road. >> > > > >> > > > Just my 2 cents, >> > > > >> > > > Kurt Fankhauser >> > > > WAVELINC >> > > > P.O. Box 126 >> > > > Bucyrus, OH 44820 >> > > > 419-562-6405 >> > > > www.wavelinc.com >> > > > >> > > > >> > > > -----Original Message----- >> > > > From: wireless-boun...@wispa.org >> > > > [mailto:wireless-boun...@wispa.org] >> > On >> > > > Behalf Of Mike >> > > > Sent: Tuesday, October 27, 2009 9:17 AM >> > > > To: WISPA General List >> > > > Subject: [WISPA] Amateur repeater on a wisp tower -- gotchas? >> > > > >> > > > Wispers: >> > > > >> > > > I have a 180' tower sitting high on a hill above the county seat. >> > > > It >> > > > has a mix of 5.8 and 2.4 radios and sectors/dishes. We want to >> > > > install an amateur repeater on the tower, initially at 70 cm >> > > > (440MHz >> > > > UHF), and eventually a 2 m (144MHz VHF) radio. The dual band >> > > > antenna >> > > > feed point will be at 120'. It is 17' long. There is no microwave >> > > > equipment below 160'. >> > > > >> > > > I don't think there will be any issues with interference either >> > > > way, >> > > > but thought I'd tap into the wealth of knowledge here to see if any >> > > > of you has any experience doing anything like this on your towers. >> > > > >> > > > Is there any mixing at uhf (or VHF) going on in the microwave radio >> > > > cards? I can't find specs that even speak of intermediate >> > > > frequencies. Gotchas? Hints? Comments? >> > > > >> > > > Thanks! >> > > > >> > > > Mike G >> > > > >> > > > At 06:38 PM 10/26/2009, you wrote: >> > > > >My 24 hours is expiring and I don't want to pull this unit down. >> > > > >Mikrotik's site wants me to authorize my credit card, a process >> > > > >I've >> > > > >begun but my credit card company won't post the transaction for a >> > > > >few >> > > > >days. Can anyone sell me a level 4 license for an x86 machine now? >> > > > > >> > > > >Thanks! >> > > > >Greg >> > > > > >> > > > > >> > > > >> > > > >----------------------------------------------------------------- >> > > ---------- >> > > > ----- >> > > > >WISPA Wants You! Join today! >> > > > >http://signup.wispa.org/ >> > > > >> > > > >----------------------------------------------------------------- >> > > ---------- >> > > > ----- >> > > > > >> > > > >WISPA Wireless List: wireless@wispa.org >> > > > > >> > > > >Subscribe/Unsubscribe: >> > > > >http://lists.wispa.org/mailman/listinfo/wireless >> > > > > >> > > > >Archives: http://lists.wispa.org/pipermail/wireless/ >> > > > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > >> > >> ---------------------------------------------------------------------------- >> > > > ---- >> > > > WISPA Wants You! 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