RE: [Repeater-Builder] Re: 900mhz , DTR, 906 to 923.75 MHz FHSS
That is correct. No external antennas and no amps are allowed by FCC rules. These radios are operating in a 902 ham/Scientific band so you can expect that operations will be noticed by amateurs on the band even if they are FHSS if you are running any significant power. They are allowed on a shared basis and must not create any interference, as well as must accept any interference from authorized users of the band. In many areas of the US the 902 ham band is becoming more popular lately with many repeaters being constructed. (eg. MA and CA due to the 440 band being destroyed by the PavePaws fiasco) Just something to consider. Glenn N1GBY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of rtc_0001 Sent: Sunday, November 23, 2008 10:01 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: 900mhz , DTR, 906 to 923.75 MHz FHSS I would be carefull in applying an antenna other than a rubber duck. It seems to me these radios fall under a class of non-licensed but having rules specifying no external antennas other than the type it came with. I suspect those rules preclude an antenna connected by coax. I'm not entirely versed in fcc rules nor where this particular radio fits into them but I thought I'd throw this at you as food for thought. --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Brian R. Chapman [EMAIL PROTECTED] wrote: Just for the heck of it I plugged one of my Radio Shack simplex repeater controllers into the DTR-650. The plug is not quite correct(I'll be checking the print) but this will work. I have a set of the DTR-650's on loan testing their functionality. The pair I have has the integral antenna. Can someone tell me what type of antenna connectors the ones with removeable antennas have? Are they SMA like most other Moto's? I imagine with a small PS and a battery eliminator(lighter cord false battery) connected to a kp-20 on a mountain top out here in NV this scheme might work pretty well!!! Just set the units up for group call. 73 Brian nb9e No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.199 / Virus Database: 270.9.9/1809 - Release Date: 11/24/2008 9:03 AM
RE: [Repeater-Builder] Re: 900mhz , DTR, 906 to 923.75 MHz FHSS
There were certain regs pertaining to the use of the FHSS radios on 902. You would need to check into the FCC rules re. that. I understand your point that the antenna and amp limitations pertain to the unlicensed use of these low power FHSS units, we agree there. But there are also specific regs and limitations for ham use of FHSS which would come into play for amateur use. They are available for anyone who wants to go with Frequency Hopping Spread Spectrum in amateur operation from the FCC web site. It was just an FYI. 73 Glenn N1GBY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of n9wys Sent: Monday, November 24, 2008 10:31 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: 900mhz , DTR, 906 to 923.75 MHz FHSS Brian, Why would you think you can't use an amp (or higher power) on 900 MHz as an Amateur? My repeater station is 150W, with added gain via the antenna system; my mobiles are 12W (but there are 35W units available), and my HT's are 4W units... Mark - N9WYS N9WYS/R 927.5250 (PL 151.4) Joliet, IL -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com On Behalf Of Brian R. Chapman What if any precludes the use by licensed amateurs of this setuo (excluding the amplifier the other guy mentioned)? It seems under Part 97 rules we could do this!!! Brian nb9e No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.199 / Virus Database: 270.9.9/1809 - Release Date: 11/24/2008 9:03 AM
RE: [Repeater-Builder] Re: 2.4 Ghz wireless radio and 145.410 repeater
Why have the the WIFI at 120 feet on the tower for just use by your family. Drop the WIFI to 50 feet and it would probably be fine for around the house and yard on the WIFI and the repeater problem would go away most likely. Glenn N1GBY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of n9lv Sent: Thursday, November 20, 2008 9:41 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: 2.4 Ghz wireless radio and 145.410 repeater --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Ken Arck [EMAIL PROTECTED] wrote: At 06:28 PM 11/20/2008, n9lv wrote: It is opening and closing the receiver very quickly. You can actually hear the pulsing of the wi-fi radio. Ok, that is not intermod, that is pulses.. 2) Is this wireless antenna actually a radio/antenna combination being fed power via POE (Power Over Ethernet) over a CAT5 cable up the tower? Yes, this is a wi-fi radio and antenna combination setup with cat5 POE. I am not sure the brand, all i can see with what they showed me is something about Canopy. ---I'll bet the problem is the CAT5 radiating. Replace it with shielded CAT5 and your problem will go away Ken What is wild is that previously there was a 15db Tranzeo radio up there that never offered any troubles with the repeater. I am going to disable the preamp and see if that helps the issue any. -- -- President and CTO - Arcom Communications Makers of repeater controllers and accessories. http://www.arcomcontrollers.com/ http://www.arcomcontrollers.com/ Authorized Dealers for Kenwood and Telewave and we offer complete repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net http://www.irlp.net We don't just make 'em. We use 'em! No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.199 / Virus Database: 270.9.9/1803 - Release Date: 11/21/2008 9:37 AM
RE: [Repeater-Builder] OT: Stationmaster Pd-220
Hi Ryan Kevin is on the money, with antenna discussions connected with repeaters very welcome to be sure. A couple of suggestions before anything else is tried. If you want to see if you have a broken antenna solder joint you can test the antenna easily, especially since you have such a short tower climb. Your antenna is about the top of the line for VHF antennas and they are very reliable for decades. If they are used in a unusually high wind environments(60+ MPH common speeds) then their lifespan will come down without any top support which of course you don't have since it is top mounted. Just climb the tower with a walkie and a Bird 43 with the low power slug in it. Connect right on to the antenna and look at forward and reflected readings. Run the test during a period off enough wind that the antenna is moving and you should see if you have an intermittant. Your reflected power will be changing as the antenna is moving if it is bad. One other point. You stated that you changed feedline from Heliax or other hardline to RG214. The difference between the two both on xmt and rcv is like NIGHT AND DAY. Assuming about 80 feet of run at VHF you have added well over 3 db of loss, which of course means your system is going to be deaf on rcv and way down on xmt E.R. power in real terms compared to on a good Heliax or other hardline. I would be betting on the feedline degrade but I would certainly run the antenna test to be sure. 73 Glenn N1GBY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Ryan Sent: Saturday, November 15, 2008 12:18 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] OT: Stationmaster Pd-220 Hi Group, My club has a the never design Station master Pd-220 bought new in 1998. Antenna is top mounted ( Rohn 45G 50 ft.) The problem were having is the Rx went to crap since recent temperature season changes in PA. What has been noticed is the Rx is a bit deaf (MastrII with ARR Preamp at .050mv sens. and Wp-642 cans) Rpt was ruled out as the Rx levels are the same. and the TX is right on the money. There was a issue with the Hardline from a hungry critter and was replaced last week with RG-214 untill spring than run new hardline. thinking this was the problem Distance users that could get in with 5 watts or less with a 5-9 signal can't key up the Rpt with 50 watts in a 30 mile radius. We Have SWR of 1.8 across the 2meter band. Was 1.3 when checked in years past. Local users ( less than 5 miles line of sight) have noticed RX signal changes. We know the station master is old by todays standards and duplex situations and top mounted have there issues.The question asked is how are the newer stationmaster taken apart? Searches online and repeater- builder and no pictures. Is this a lost cause to think about fixing. Ryan n3ssl No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.199 / Virus Database: 270.9.4/1790 - Release Date: 11/15/2008 9:32 AM
RE: [Repeater-Builder] ARLB016 Next Round of PAVE PAWS Mitigation Contacts Begin
Wouldn't it be a lot easier oneveryone including the AF if they just confined their ops to 420-440 and left hams repeaters alone on 440 to 450 Mhz. Seems to me like another big government mess devoid of any common sense. In fact we have yet to even get a simple answer from them as to how wide their guardband is that they do not operate in right next to the band edge. Glenn -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Mark Thompson Sent: Friday, October 24, 2008 4:25 PM To: [EMAIL PROTECTED]; Repeater-Builder@yahoogroups.com; [EMAIL PROTECTED] Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: [Repeater-Builder] ARLB016 Next Round of PAVE PAWS Mitigation Contacts Begin SB QST @ ARL $ARLB016 ARLB016 Next Round of PAVE PAWS Mitigation Contacts Begin ZCZC AG16 QST de W1AW ARRL Bulletin 16 ARLB016 From ARRL Headquarters Newington CT October 24, 2008 To all radio amateurs SB QST ARL ARLB016 ARLB016 Next Round of PAVE PAWS Mitigation Contacts Begin On Wednesday, October 22, the FCC notified the ARRL that they would immediately begin making direct contact with owners or trustees of approximately 40 repeaters. The US Air Force identified these repeaters earlier this year as contributors to the harmful interference affecting the Beale Air Force Base PAVE PAWS radar installation near Sacramento, California. ARRL understands that contact with individual amateurs will be made from the DFCC's San Francisco office, said ARRL Regulatory Information Branch Manager Dan Henderson, N1ND. The owners of these newly identified repeaters will be provided the operating parameters determined by the Air Force engineering unit's testing to be necessary to mitigate the interference. The owners will be requested to meet signal strength limits as soon as possible. The ARRL Lab and staff are available to answer specific questions for the owners of these newly identified repeaters and to provide technical information to assist them in implementing the mitigation. Henderson said that as the Amateur Radio Service is a secondary user on the 70 cm band, It is important for amateurs to remember that it is 100 percent our responsibility to eliminate harmful interference to the primary user. While we realize that this is and will continue to be an ongoing process, this third round of mitigation should mean that each of the known repeaters in the affected area have been tested at least once. How the FCC will address approximately 50 repeaters previously identified as interference contributors -- but which have not apparently completed the required modifications -- still remains. Nor is it clear when a process by which new coordinations can be issued in the area might commence. Henderson reminded amateurs that It is important to remember that this isn't a one-time solution. The amateur community needs to remain aware of this problem and responsibly utilize the band in the future to avoid any large-scale problems such as those we have experienced in this situation. /EX No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.196 / Virus Database: 270.8.4/1749 - Release Date: 10/27/2008 7:57 AM
RE: [Repeater-Builder] Maybe a little OT
Hi Doug I run Echotime now and it is a good program. There were 2 versions, the first which was free and the second which had better voices and was a paid program. Now there is a new program you can get from the EchoAddOns site that is even better. It is EchoProducer. It has a ton of options to configure so you can use it in very basic mode like EchoTime or you can add all sorts of features depending on your system needs. You should get a copy of ATT Voices if you decide to use speech, which will sound better that the very basic voices that are in the program, or you can record your own. 73 Glenn N1GBY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of n3dab Sent: Tuesday, October 14, 2008 2:09 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Maybe a little OT I'm putting Echolink on my rptr. I wanted to run the Echo Time program also, but found out from KH2D that it is no longer available, since he took a lightening strike last July on his system/server or something. From what I gather, he has no plans on reactivating it. Now i'm looking for another program that works like Echo Time and is compatible with Echolink. Does anyone know of a program that is available ?? Thanks Doug /N3DAB No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.8.0/1724 - Release Date: 10/14/2008 2:02 AM
RE: [Repeater-Builder] Repeater Antenna
That is THE GOLD STANDARD of commercial repeater vhf antennas and it should be I guess for the money they get for them. I am using one at this time and it is excellent; the one I am using is in the 142-151 range (2) which is perect for 2 meter ham use. Glenn -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Randy Sent: Thursday, October 02, 2008 9:06 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Repeater Antenna I have a Repeater antenna. Radio Frequency Systems, #220-3AN Freq: 150.5-158. New is about $3000.00 ... I'll take 1/2 plus shipping for anyone that wants it. . . http://www.rfsworld.com/dataxpress/DataSheets/?q=220-3AN http://www.rfsworld.com/dataxpress/DataSheets/?q=220-3AN No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.7.5/1703 - Release Date: 10/2/2008 7:46 AM
RE: [Repeater-Builder] Vertex vs. Kenwood
Hi Bob You might also want to look at the new Icom commercial series FR-3000 VHF and FR-4000 UHF repeaters. I have heard good things about them so far and they are running over 70db down on adjacent channel and intermod rejection. They are designed for commercial business and public safety apps and do not list Ham freq ranges, however they do tune to the ham pairs no problem. They run 50 w continuous fan cooled but can have lower power selected if you are running a sep. amp. Price is competitive at around 1400-1500. 73 Glenn N1GBY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Friday, October 03, 2008 10:14 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Vertex vs. Kenwood Hi Joe, I'm still trying to comprehend why you would need replacements just because a site is more quiet. If they work at the crowded site, they should work fine at the quiet one. That's just it -- they don't work all that well at this mountaintop site with literally hundreds of RF sources. Since we have an opportunity to sell them, it seems like a good time for an upgrade. But if K is no better in this situation than V, you're right, we're going down the wrong path. This is a club that went from Micor vintage equipment that was showing its age to Vertex and now has an opportunity to change once again. The bias is toward new, low-maintenance gear rather than refurbished old commercial gear. 73, Bob -Original Message- From: MCH [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thu, 2 Oct 2008 9:50 pm Subject: Re: [Repeater-Builder] Vertex vs. Kenwood I'm still trying to comprehend why you would need replacements just because a site is more quiet. If they work at the crowded site, they should work fine at the quiet one. Joe M. [EMAIL PROTECTED] wrote: Hi All, My club has some 3-year-old VHF and UHF Vertex repeaters at a high-RF site. A possible deal would move them to a much quieter site, and if that happens we'll need replacements. Members of this list have consistently shown a preference for Kenwoods, and it appears both brands are priced about the same. However, I'm concerned that much of what has been posted falls into the true believer category, and this decision must be based on technical data. How about it, RF gurus? If you have facts, please spill 'em. Thanks! 73, Bob, WA9FBO -- Looking for simple solutions to your real-life financial challenges? Check out WalletPop for the latest news and information, tips and calculators http://pr.atwola.com/promoclk/10075x1209382257x1200540686/aol?redir=htt p://www.walletpop.com/?NCID=emlcntuswall0001. -- No virus found in this incoming message. Checked by AVG. Version: 7.5.526 / Virus Database: 270.7.5/1703 - Release Date: 10/2/2008 7:46 AM Find phone numbers fast with the New AOL Yellow Pages http://yellowpages.aol.com/?NCID=emlweusyelp0001 ! No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.7.5/1705 - Release Date: 10/3/2008 8:18 AM
