RE: [Repeater-Builder] Interference on VHF repeater
Had basically the same problem with w GE MASTR II repeater on VHF HI. The issue was with the repeater transmitter. When the repeater sat quiet for a while then it was keyed up the transmitter would have many spurs that would slowly travel up the band. This affected other repeaters that were open squelch or had the same PL. On the GE MASTR II PA there is a circuit just after the filter that was the problem. The tech had put a filter on the transmitter side to help with desense. This caused the network to be unbalanced and was causing the transmitter to spur. Once the transmitter ran for a while it cleared. David From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of brett Sent: Saturday, September 04, 2010 6:27 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Interference on VHF repeater Hi all, I have come across an interesting problem which you may be able to shed some light on. I have an intermod issue where my TX sometimes opens up my RX. I have the distinctive hollow pipe sound. Both TX and RX have the same CTCSS tone. The intermod product is however not always present, and after looking at the RX output from the duplexer with a SA I see a comb of products that move slowly in time. When one of the products in the comb falls within the RX bandwidth the RX opens, until it moves on. This is not a busy site, and I have been able to power down everything on site except my repeater. Problem remains unchanged. I have also disconnected feeders from all other RF equipment on site - still no change. The fact that the IM product frequency changes with time (drift rate is roughly a few kHz's an hour) makes me think that there is either another unknown source of RF on site which has poor freq stability (pretty unlikley), or somehow my TX freq is involved in producing this freq. I have inserted a 6dB pad in the antenna port of the duplexer and found that the IM products drop 12dB, and also curiously, the frequency of the products change. Removing the pad reverses this effect. I have repeated this many times and the result was always the same. It appears that the frequency of the IM product is dependent on the strength of the radiated field from my antenna. This is my question: I have read that it is possible for a strong EM field to excite metal (eg tower member) such that re-radiation will occur at a frequency which is different from that which excited it. Can anyone confirm they have seen this, or can anyone point me to a reference that talks about this? I should also mention there are multiple solar panels and associated regulators on site. The regulators have been discounted as possible sources, but the panels (given they may have bypass/blocking diodes) may be a mixing location, however the source of the drifting tone is still unclear. Thanks, Brett VK2CBD.
RE: [Repeater-Builder] Polyphaser Question
I recently opened up a Polyphaser unit we used on one of our remote sites. it covered both 2m and 70cm. We were experiencing poor receive at the site. Replaced the unit and receiver sensitivity is once again hot. Anyone want pics of the insides respond direct and I'll ship you the photos.not much to see. a gas tube and what looks like a surface mount resistor in series with the gas tube. 73, Dave Wa3gin _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Oz-in-DFW Sent: Tuesday, August 17, 2010 4:37 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Polyphaser Question Polyphasers have a shunt protection element. It usually fails and becomes leaky so you get a loss/VSWR indication. It can fail open or short. If it's open, there is nothing to detect.
[Repeater-Builder] Polyphaser EOL ?
Hi folks, We noticed reduced sensitivity at one of our remote receivers recently. Went out to check things. All looked good. SWR to the receive antenna was good. Check it with and w/o Polyphaser in line. Replaced Polyphaser and tested again. same SWR but sensitivity much improved. Is this typical for a Polyphaser that has reached EOL? 73, Dave Wa3gin
RE: [Repeater-Builder] Hygain in Starkville MS
MFJ bought both Cushcraft and Hy-GAIN.too bad the didn't grab Telrex before they went under ;-( _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Tommy Dow Sent: Wednesday, August 04, 2010 2:44 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Hygain in Starkville MS MFJ bought Cushcraft. Tom Subject: Re: [Repeater-Builder] Hygain in Starkville MS Yes, MFJ bought Hygain. WA Brown
RE: [Repeater-Builder] Hygain in Starkville MS
HAHA, Did you ever have one? The elements used to wear a hole in the boom and fall out at the most un opportune times ;-) _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Lee Pennington Sent: Wednesday, August 04, 2010 3:43 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Hygain in Starkville MS Telrex didn't fall into the Mighty Fine Junk category! de Lee K4LJP 73 On Wed, Aug 4, 2010 at 3:21 PM, David Jordan wa3...@comcast. mailto:wa3...@comcast.net net wrote: MFJ bought both Cushcraft and Hy-GAIN.too bad the didn't grab Telrex before they went under ;-(
RE: [Repeater-Builder] Mastr II drift problem
Only if your crystals in the ICOMs are from BOMAR. David From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of steve Sent: Tuesday, August 03, 2010 5:33 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Mastr II drift problem Hello all, I have having a severe drift problem on my GE Mastr II 2 meter repeater. The transmit freq will drift nearly 2 KHZ over a 5-10 minute period. I have changed exciters and used a different ICOM but no improvement. The building that I am in is not ventilated and is very very hot. I put a high/low thermometer in and one day the high temp in the building was 114 degrees. Is this the problem? Thanks for any help. Steve W4SEF
RE: [Repeater-Builder] Re: GMRS License Help
Sounds like bogus information. why not just surf the FCC web site and quantify the rumor! _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Fuggitaboutit Sent: Wednesday, July 28, 2010 3:54 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: GMRS License Help we are hearing that the fcc is going to limit output power to 2 watts in the gmrs service that would preclude all repeaters and implies handheld use only --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , Andy agrimm0...@... wrote: I just applied for my GMRS license yesturday evening. I got a confirmation email saying that I did pay my 85.00 bucks. How do I know what my call sign is and all my license information. Will I get another email when all the data is processed by the FCC and everything is confirmed. Will they mail my license to me in the mail??
Re: [Repeater-Builder] OT: Licensing Exam Info
Just want to clarify one thing. As I read the orignal post, I understood it to mean that he was inquiring about taking the test on line which is not possible. All tests are administered through Volunteer Examineers... You can find a local group of VEs and testing schedules on the ARRL web site... The only fee is for the examination itself and is less than $10. Once you receive the license it is good for 10 years and renewable after that. Just a small clarification in case that is what the was being asked. Dave WB2FTX - Original Message - From: racer To: Repeater-Builder@yahoogroups.com Sent: Friday, July 23, 2010 12:52 PM Subject: Re: [Repeater-Builder] OT: Licensing Exam Info I used this one to get my extra license. It worked very well. The other nice part is you can keep going from tech to extra. http://www.hamtestonline.com/ From: La Rue Communications Sent: Friday, July 23, 2010 11:43 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] OT: Licensing Exam Info Good Morning All - I am looking to take my Licensing exam and get my HAM / Radio Operator's license. I was told there was one online for about $80.00 but I don't have the first clue where to look. Is it somewhere on the ARRL web page, or somewhere else I need to be looking? Also - how long are the licenses good for? If you point me in the right direction - I can handle it from there. :-) Thanks! John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.851 / Virus Database: 271.1.1/3023 - Release Date: 07/23/10 02:36:00
RE: [Repeater-Builder] help and suggestions interference issues
Had an issue also with a dstar repeater. Seems that the repeater was co located with another analog repeater and when both transmitters came up I would see and hear the dstar signal on the input of my repeater. The two transmitters were mixing in a filter on the dstar antenna. Operators of the dstar repeater made adjustments to the filter and no longer see or hear the repeater. We are also using pl 123.0 and the dstar signal was keying the transmitter. Not sure why as the other transmitter is using a different pl tone. David From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of terry_wx3m Sent: Sunday, July 04, 2010 11:25 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] help and suggestions interference issues DSTAR is totally foreign to me. I can't think of anyone in the immediate area that even has a DSTAR capable radio. We are experiencing some interference on the input to one of our club repeaters. What baffles me is that the repeater is in PL (123.0). Is it possible that a DSTAR user in a neighboring area is inadvertently transmitting PL and getting into our machine? Also it would GREATLY help if someone had the capability of making me a short .wav clip of what DSTAR sounds like on an analog receiver. Thanks Terry wx3m.te...@gmail.com mailto:wx3m.terry%40gmail.com
RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR
HAHA D-STAR doesn't provide amateur radio price points either.D-STAR is off the shelf which makes it popular for appliance operator/trustees who want to tinker with digital as compared to digging into a P-25 mode and upgrade which takes significant technical skills when compared to appliance operator type. I think D-STAR will end up like Quadraphonic sound.just a matter of time. If prices drop 60% on D-STAR that might keep it alive longer but it is nonsense to think VHF users are going to walk away from analog under the current scenario and economic times. As stated earlier D-STAR makes no sense for ACS. Sorry for the drift, Dave Wa3gin _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of John Sent: Tuesday, June 29, 2010 1:04 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR Some of the concerns are addressed in this posting: http://k7ve.org/blog/2007/07/d-star-repeater-audio-linking/ Basically, D-STAR is by far the most developed and deployed Amateur Radio specific true digital voice and data network out there (We see a few P25, MotoTrbo, and NXDN/IDas systems on Amateur Radio, but none with the network of D-STAR -- see http://dstarusers.org). Mototrbo, P25, etc. just doesn't provide amateur oriented radios at amateur oriented price points. But these are probably topics for other lists.
RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR
Sounds about right! _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chris Curtis Sent: Tuesday, June 29, 2010 2:59 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR Easy with the laserdisk now ;) I still have a nice collection here. Kb0wlf -Original Message- From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater- buil...@yahoogroups.com mailto:Builder%40yahoogroups.com ] On Behalf Of nj902 Sent: Tuesday, June 29, 2010 1:50 PM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , David Jordan wa3...@... wrote: ... I think D-STAR will end up like Quadraphonic sound.just a matter of time. .. -- Agreed. D-Star had the misfortune to roll out just ahead of the economic downturn. D-Star may trudge on much like LaserDisk did - Pioneer was pretty much the only one backing it just as D-Star has one major backer. LaserDisk survived until a better format won acceptance so it will be interesting to see where amateur VHF/UHF digital voice winds up. This quote from the Wikipedia LaserDisk article may fit D-Star in a couple of years: ...the format was poorly received in North America. In Europe and Australia, it remained largely an obscure format. It was, however, much more popular in Japan ... Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.439 / Virus Database: 271.1.1/2962 - Release Date: 06/29/10 06:35:00
RE: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR
No argument on more going on with D-STAR you can see it happening now.loads of used D-STAR equipment for sale on club swap and shop list, ebay, etc. _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of John Sent: Tuesday, June 29, 2010 3:28 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Converting the Kenwood TKR-820 to use with D-STAR --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , nj902 wb0...@... wrote: D-Star may trudge on much like LaserDisk did - Pioneer was pretty much the only one backing it just as D-Star has one major backer. You mean like MotoTrbo? :) BTW - there is a lot more going on in D-STAR and you will probably see a big growth spurt (especially in repeaters) later this year.
RE: [Repeater-Builder] transmission is intermittent and voice cuts out with my mc-micro repeater
If the system that you are using has CTCSS then it sounds like your voice at times is causing the tone to not be decoded causing your voice to cut out. This happens if your deviation is too wide and/or your mic volume is too high. David From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of mimomeg Sent: Sunday, June 06, 2010 9:56 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] transmission is intermittent and voice cuts out with my mc-micro repeater Seem to have period where my transmission (voice) cuts out for a few seconds every so often, and the person at the other end can't hear me. On the receiving end,Does anyone have any idea? Thanks in advance,
Re: [Repeater-Builder] Need source for UHF power module
RF Parts in California lists the M57729 for $ 68 (US) http://www.rfparts.com/module_m.html#m57704el Dave WB2FTX - Original Message - From: P Grant To: Repeater-Builder@yahoogroups.com Sent: Sunday, May 23, 2010 9:37 AM Subject: Re: [Repeater-Builder] Need source for UHF power module Hello Byron, The M57729 is a standard Motorola PA Slab. Yours is the Kenwood Part number, M57729h-01-P. The standard Motorola module will be available off the shelf,,, BUT,,, it will be priced @ $230.oo US. Any equivalent Motorola, or spurious part [30W UHF] will do the job, much cheaper,,, you can cross reference on any good RF Components web site in your area. You may source one from a scrap [ out of spec ] mobile PMR radio for $10.oo, if you know where to look ! 25 watt would be much cheaper and easier to find. Hope this is of some help. 73 from Ireland. Peter EI4HX ei4hxperimen...@eircom.net - Original Message - From: x.tait.tech get real To: Repeater-Builder@yahoogroups.com Sent: Saturday, May 22, 2010 10:34 PM Subject: Re: [Repeater-Builder] Need source for UHF power module there is a company here in New Zealand that used to or maybe still does deal with Kenwood products http://www.pacificaerials.co.nz/ I know of no one else, other than Kenwood themselves Marcus On Sat, May 22, 2010 at 5:02 PM, byronhham hellewe...@utahwisp.com wrote: Hi Does anyone know of a good source for a M57729h-01-p. It is the UHF power module in the Kenwood TKR-820. It is rated at 30 Watts 12 volts 440 to 470 MHz. I found that they do not like to be operated into the wrong side of a duplexer. For even a short time. Is it used in any other transceivers that might be purchased for the module? Thanks Byron NJ7J -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.819 / Virus Database: 271.1.1/2891 - Release Date: 05/23/10 02:26:00
RE: [Repeater-Builder] spectra tranceiver with 9a dual heads
If you have the software to program the radio there are help files. Just press f1 after opening up the program and reading the code plug. If you don't have the software then it is really hard (impossible) to add or delete modes. David From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of rwrodgers14 Sent: Friday, May 14, 2010 8:34 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] spectra tranceiver with 9a dual heads are there any specific shop manuals that explain how to erase and add modes or channels?
RE: [Repeater-Builder] Re: spectra tranceiver with 9a dual heads
Randy, once you load the codeplug hit the escape key. This brings you back to the main menu. Go to F4 then F5. This gets you to the MODE config menu. At the bottom of the screen F8 is the mode utility. At that point you can add or delete modes. Use the F1 key to get any help. Deleting trunking modes you will need the syskey. Hope this helps. David WA4ECM From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Randy Sent: Sunday, May 16, 2010 12:42 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: spectra tranceiver with 9a dual heads Thanks David, I'm very new to these radio's and i'm stumbling though it blind, I have checked out some of the help information but maybe i need to look a little harder for it. I so have the software on dos and have figures out how to archive and clone programs to other radio's. thanks again --- In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , David Murman dmur...@... wrote: If you have the software to program the radio there are help files. Just press f1 after opening up the program and reading the code plug. If you don't have the software then it is really hard (impossible) to add or delete modes. David From: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of rwrodgers14 Sent: Friday, May 14, 2010 8:34 PM To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] spectra tranceiver with 9a dual heads are there any specific shop manuals that explain how to erase and add modes or channels?
[Repeater-Builder] SRM9000 Repeater Help
Hi All and thanks in advance I am trying to build a repeater using the SRM9000 however I have come across a stumbling block Using the document A9K-501 (http://www.tmcradio.com/TMC_Files/Mob_AppNotes/A9k-501_Simple_Repeater_V103.pdf\ ) Simplest repeater using serial crossover cable I've following the documentation however I am unable to get the transmitter to TX Tests undertaken using a portable the RX transceiver receives the incoming audio Using a SRM9030 head on the TX transceiver this TX transmits to the portables Cables have been tested as per the A9K-501 document using a cable tester The part I seem to be missing is the connection in the middle what tells the RX to TX Thanks for all your help M6MOU
Re: [Repeater-Builder] Re: A warning to Land Mobile Radio Dealers
Actually, here is the link for this specific case: http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-296584A1.pdf. NOV was issued to Bearcom. The client was Wal-Mart. Interestingly, other Wal-Mart locations had been licensed for this freq of 151.955, but not this location. Wal-Mart was fined; see http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-295384A1.pdf. David/K7DB - Original Message - From: wd8chl To: Repeater-Builder@yahoogroups.com Sent: Thursday, April 29, 2010 10:30 AM Subject: Re: [Repeater-Builder] Re: A warning to Land Mobile Radio Dealers arggh: after digging, here's the link to the actual NOV: http://www.fcc.gov/eb/FieldNotices/2003/DOC-296584A1.html
[Repeater-Builder] NHRC3 for mastr II
I have an NHRC3-M11-00 with a com-spec encoder/decoder that I pulled from a mobile MASTR II that I am no longer using as a repeater. If anyone is interested in the controller I am asking $125.00 shipped. Please contact me off list if interested. David dmurmanATverizonDOTcom
RE: [Repeater-Builder] D-Star Was: Molotora Gontor
D-STAR may not be adopted by the majority of VHF/UHF users until the end-user gear prices drop significantly. I think there will be too few users to justify the efforts of a trustee or club to migrate to D-STAR/digital. One D-STAR follower noted 12,000 units sold globally. That number of unit sales over a period of five years or more is a product line waiting to be dropped. D-STAR is no IPOD ;-) What is holding D-STAR adoption back is pretty obvious; no competition from Kenwood or Yasue that might help drive the prices down as has been the case with all previous technology evolutions. Kenwood actually offers D-STAR re-selling ICOM's units with a stick-on Kenwood label.doesn't look like Kenwood is going to adopt this technology as a viable alternative to analog systems. Without competition there is a dead-end coming around the bend for D-STAR travelers, IMHO. The digital repeaters are also very expensive. The new hardware/software workarounds for the repeater side make migrating to the digital mode less expensive for the trustees and clubs that are interested in the mode but users make a repeater system and without the users why bother. This isn't one of those build-it-and-they-will-come scenarios. Perhaps an analogy might be why tone a repeater in a vacation spot when most of the users are from out of town and won't know the tone. Sure you can tone but you'll reduce the number of users, at least that was the case before receivers were smart and could detect the tone for us. But you get idea. So, I suspect those considering digital are thinking about adding a new repeater rather than converting an existing system. That approach is also going to lead to that dead-end for ICOM D-STAR. I think it is great that repeaters can now be enhanced with bolt-on applications running on PCs but I can't imagine hand-held owners enjoying the few if any tangible benefits of D-STAR if they have to lug a lap-top around with them so their existing mobile or hand-held can operate the mode... Linking analog repeaters via the Internet may be a better approach then trying to force or wait for 99% of the user community to migrate to the new mode. I give ICOM D- for implementation. They totally misread the marketplace IMHO. Please flame direct ;-) Best, Dave WA3GIN/W4AVA/W4KGC _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Doug Bade Sent: Friday, April 02, 2010 9:50 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] D-Star Was: Molotora Gontor I would be glad to elaborate about D-Star Repeater conversions as there are multiple ways to do it now and Any EDACS capable or Smartnet Capable repeater would do D-Star as both fundamentally have the parts to transmit and receive GMSK type waveforms There are several Yahoogroups that are focused on alternate D-Star hardware and software devices. Doug KD8B From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Scott Zimmerman Sent: Friday, April 02, 2010 8:54 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] D-Star Was: Molotora Gontor My biggest problem with the D-Star repeaters is that they didn't make them analog compatible. Knowing as little as I do about the D-star hardware, it would seem easy enough for Icom to have done so. All they would have needed to do would have been to look at the incoming signal, see if it was analog or digital, and process it correctly. While you'll pry my analog repeater pairs from my cold dead hands; if D-Star machines were analog capable, I'd swap every pair I have to that format tomorrow. As RB (the company) I have been asked about D-star more times than I can count. I tell people it's nice to play with, but what happens in an emergency? If Icom would have made the D-star machines analog capable, those that wanted to (and had D-star radios) could play with it all they wanted to. When an emergency arose and you had 10x as many people out there with analog rigs, the machine would *still* be useful. As it is at present, if an emergency arises, only those with D-star rigs can use a D-star machine. That concept is fine, as long as ALL of your volunteers have D-Star radios! (How many places is this the case?) Around here (Western PA) the governments bought Icom D-Star radios for RACES. I had no objection to that since those radios can be used in analog modes with analog repeaters. Now they are wanting to get D-Star repeaters for RACES and emergency use. I *strongly* object to that since they CANNOT be used in analog modes for emergencies. In my view, you'd be alienating much of your volunteer base that doesn't have the correct equipment right at the point where you need all the help you can get! Of course with the government in the mentality that they have been in the past few years, maybe that's their way of thinning the heard.
[Repeater-Builder] FW: FCC Update - Amateur Radio Rules
Some good news from the FCC for Public Safety Oriented Trustees _ From: Robert Kenny [mailto:robert.ke...@fcc.gov] Sent: Wednesday, March 24, 2010 1:55 PM To: David Jordan Subject: FCC Update - Amateur Radio Rules Dave, I just wanted to update on developments on the amateur radio front as it relates to government-run emergency preparedness exercises and readiness drills and test (including participation by hospitals). Please go to the following the PSHSB home page at http://www.fcc.gov/pshs/ http://www.fcc.gov/pshs/ and find the following notice under 'Highlights and Releases.' Please feel free to share with those who you believe will be interested in this notice and wish to provide comment. Thanks. 3/24/10 FCC Issues Notice of Proposed Rulemaking Seeking Comment on Amateur Radio Service Rules Related to Emergency Preparedness and Disaster Readiness Drills and Tests. NPRM: http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-10-45A1.doc Word | http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-10-45A1.pdf Acrobat http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-10-45A1.doc http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-10-45A1.doc Rob Robert C. Kenny Director of Media Relations Public Safety and Homeland Security Bureau US Federal Communications Commission 445 12th Street, SW Washington DC, 20554 202-418-2668 202-355-2524 (Cell) 202-418-2817 (Fax) Email: mailto:robert.ke...@fcc.gov robert.ke...@fcc.gov
[Repeater-Builder] Commercial Antenna for 2m Repeater Question
Hi Folks, Our club has been given permission to use one of the Public Safety antennas for our 2m repeater. The antenna is a PD-220-3A 150.5-158.5MHz. Our repeater freq. is 146.745. The antenna is fed with some nice looking Cell Flex LCF-12-50 ju, hard-line. The PD-200 is one of those totally enclosed fiberglass antennas; we don't have funds to pay for a climb to take down or replace or tweak. Have two questions: We think we can live with the power loss if we build a coupler to match the inevitable high SWR. Can someone point us to a formula to estimate/calculate both the projected SWR and power loss, etc? WAGs R fine too. Is anyone aware of any 2m coupler projects that might work for this scenario? Our current repeater antenna is in the attic of one of our members garage at 25ft ASL.this antenna would be 425ft ASL.so even with losses we expect significantly better performance. 73, Dave WA3GIN
RE: [Repeater-Builder] Commercial Antenna for 2m Repeater Question
Hi Chuck, We couldn't do a proper test this weekend. The hard-line had its connector cut-off and we didn't have a compatible connector for this type hard-line. Ordering a connector today. I'm guessing about 3:1 but won't know for sure till we get some RF into it. Best, dave _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey Sent: Monday, March 22, 2010 10:29 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Commercial Antenna for 2m Repeater Question I'd consider a Z-matcher. Telewave, Sinclair, EMR and others make them. You don't want to make your transmitter unhappy. You didn't say how bad the SWR is. You might get away with doing nothing. Chuck WB2EDV
RE: [Repeater-Builder] Commercial Antenna for 2m Repeater Question
What is the power rating of the device? _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chris Curtis Sent: Monday, March 22, 2010 11:07 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Commercial Antenna for 2m Repeater Question I've got a vhf-hi z-matcher up on ebay right now. http://cgi.ebay. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=180482604103ssPageName= STRK:MESELX:IT com/ws/eBayISAPI.dll?ViewItemitem=180482604103ssPageName=STRK:MESELX:IT decibel unit. Worked really well but no longer needed. Kb0wlf From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of David Jordan Sent: Monday, March 22, 2010 9:13 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Commercial Antenna for 2m Repeater Question Hi Folks, Our club has been given permission to use one of the Public Safety antennas for our 2m repeater. The antenna is a PD-220-3A 150.5-158.5MHz. Our repeater freq. is 146.745. The antenna is fed with some nice looking Cell Flex LCF-12-50 ju, hard-line. The PD-200 is one of those totally enclosed fiberglass antennas; we don't have funds to pay for a climb to take down or replace or tweak. Have two questions: We think we can live with the power loss if we build a coupler to match the inevitable high SWR. Can someone point us to a formula to estimate/calculate both the projected SWR and power loss, etc? WAGs R fine too. Is anyone aware of any 2m coupler projects that might work for this scenario? Our current repeater antenna is in the attic of one of our members garage at 25ft ASL.this antenna would be 425ft ASL.so even with losses we expect significantly better performance. 73, Dave WA3GIN No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.437 / Virus Database: 271.1.1/2756 - Release Date: 03/22/10 07:33:00
RE: [Repeater-Builder] Copper pipe rather than 2/0 copper wire
Strap meaning solid copper, not copper or silver tinned braid. However, one might argue that the copper tubing has an equal amount of surface area and is more robust than the thin copper strap being sold.. if you fold 3 wide copper strap into a piece of tubing you get a ¾ OD tube. So, does the inside surface count? If not then the strap is the clear winner with double the surface area. What a hoot, Dave Wa3gin _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Gary Schafer Sent: Tuesday, March 16, 2010 11:59 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Copper pipe rather than 2/0 copper wire Copper strap is better as you get the benefit of both sides of the copper. 73 Gary K4FMX
RE: [Repeater-Builder] Copper pipe rather than 2/0 copper wire
Softdrawn copper tubing comes in spools of 25-50-100ft. _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Eric Lowell Sent: Tuesday, March 16, 2010 12:10 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Copper pipe rather than 2/0 copper wire It will work, you just have to bond each 10' section to the next with something other than soft solder. Lightning will blow lead solder right out of a joint. Cadweld would probably be best. GL, Eric Eric Lowell Eastern Maine Electronics Inc. 48 Loon Road Wesley ME 04686 eme@starband.net www.satnetmaine.com 207-210-7469 _ From: Jesse Lloyd ve7...@gmail.com To: Repeater-Builder@yahoogroups.com Sent: Tue, March 16, 2010 11:41:43 AM Subject: [Repeater-Builder] Copper pipe rather than 2/0 copper wire Hey All, I am thinking about lightening protection for a site and using 1/2 copper pipe runs rather than a heavy guage wire like 2/0. 1/2 copper is about $2.20 a ft, while 2/0 is about $3/foot... and 2/0's diameter is about 0.36 inches so bang for the buck 1/2 copper pipe seems the way to go. I know skin effect plays a big role in lightening since its mainly RF, what do you think about the idea? Cheers, Jesse Y
[Repeater-Builder] Super Station MasterPD-220 -3A 150.5-158.5 mHz
Hi Folks, Recently I read a note from a member of this list regarding retuning dipole elements of a commercial exposed dipole antenna, for 2m. Has anyone attempted same for subject type antenna? 73, Dave Wa3gin
RE: [Repeater-Builder] Commercial-Grade Repeaters for 6m
I have VHF and UHF that I converted down from the commercial bands. They took slight retuning and a very small software hack. I liked what I saw so much I inquired about six meters. I was told that they would make any ham frequency I wanted. David Epley, N9CZV Randolph County Emergency Coordinator 4866N 400E Winchester, Indiana 47394 Cell765.546.2592 n9...@arrl.net
RE: [Repeater-Builder] Commercial-Grade Repeaters for 6m
Try DX radios their repeater are very flexible. David Epley, N9CZV Randolph County Emergency Coordinator 4866N 400E Winchester, Indiana 47394 Cell765.546.2592 n9...@arrl.net
RE: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band
4.9 is licensed spectrum. If Public Safety has an incident they are engaged in I think they have the where with all to manage the spectrum.I guess some of you all just like to worry about stuff. Have at it. _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Walter H Sent: Friday, March 05, 2010 4:34 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band And what happens if they deploy it in a municipality where there's a 4.9 GHz mesh network [like Phoenix, AZ]? Or a 4.9 GHz point-to-point microwave link? Or in the presence of a 4.9 GHz helicopter downlink? Frequency selection/coordination is a very big deal, and most of the IT/MBA types running these corporations [and the FCC] are clueless. I, too, am very concerned about this proposal, and not just for hams, but for the precedent that it creates. This is the equivalent of special legislation that benefits a single corporate entity. WalterH --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, David Jordan wa3...@... wrote: Joe, I'd put them in the Licensed Public Safety Broad Band Data allocation 4940-4980Mhz band.plenty of room there.very little usage. My guess is the manufacturer doesn't have the technology or funding needed to build the cheaply made, significantly over priced crawling camera to operate in the GHz ranges. Like BPL.this vendor will disappear once their venture capital has been all used up. The military may purchase some of these units but with tax revenues down nationally, for the next several years, I don't think your local fire or police dept will be spending many dollars on this low value technology. I'm not worried about this order. Best, dave _ From: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com] On Behalf Of MCH Sent: Thursday, March 04, 2010 2:42 PM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Subject: Re: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band The premise is common sense, but, as you say, this is the government. Where would *you* put TV transmitters if not in the TV bands? Joe M. David Jordan wrote: I don't think there is any premise or as you say, ...fact that it should be in the bands where TV is authorized... is relevant. Where the FCC decides to put it is where the fact.
RE: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band
I just read the FCC order.I don't see a significant threat to amateur radio UHF communications from this device. - the price is very high for what you get - few will be purchased - the technology implementation is lam - the incidents where the device would be used are few and far between - the device erp is .25watt to max 1 watt into a hand-held rubber duck antenna at the operator position and the device crawls on the ground with internal ant - the statement in the order makes the device operations secondary to amateur radio - there are many caveats in the order with regard to when the device may be used What am I missing? 73, Dave Wa3gin _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of George Henry Sent: Thursday, March 04, 2010 1:44 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band That IS the item... ReconRobotics' website has the disclaimer that the device has not received FCC authorization may not be sold.
RE: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band
Joe, The last time I checked our licenses were not purchased like wireless spectrum...I believe we fall under the category of granted privileges to utilize frequency spectrum owned by the government and administrated through licenses granted by the FCC. I don't think there is any premise or as you say, ...fact that it should be in the bands where TV is authorized... is relevant. Where the FCC decides to put it is where the fact. When this waiver was posted did this group craft a response and send it to the FCC? I haven't read the ham responses but the order seems to indicate that most of the filings in opposition had to do with satellite and weak signal operations, not repeater users. Best, Dave Wa3gin -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of MCH Sent: Thursday, March 04, 2010 2:07 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band What are you missing? The fact that it should be in bands where TV is authorized, and not in a band where it will be subject to random instances of interference from a service that has transmitters at any place at any time. I wonder how well a waiver would be received that would permit hams to use any frequency in the 406-512 MHz band at 1 watt maximum ERP with a non-interference basis to licensed users of that band segment. Would those licensed users sit still for that? Joe M. David Jordan wrote: I just read the FCC order.I don't see a significant threat to amateur radio UHF communications from this device. - the price is very high for what you get - few will be purchased - the technology implementation is lam - the incidents where the device would be used are few and far between - the device erp is .25watt to max 1 watt into a hand-held rubber duck antenna at the operator position and the device crawls on the ground with internal ant - the statement in the order makes the device operations secondary to amateur radio - there are many caveats in the order with regard to when the device may be used What am I missing? 73, Dave Wa3gin *From:* Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] *On Behalf Of *George Henry *Sent:* Thursday, March 04, 2010 1:44 PM *To:* Repeater-Builder@yahoogroups.com *Subject:* Re: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band That IS the item... ReconRobotics' website has the disclaimer that the device has not received FCC authorization may not be sold. Yahoo! Groups Links
RE: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band
Richard, The FCC has always had that option to re-assign spectrum.you use the term our frequency which implies you think we have some implied rights to utilize the spectrum. We have no rights, just privileges. The FCC can change those privileges any time they want, as they have just done in the subject case. The doors to encroachments as you say, have always been open, in fact there are no doors. We enjoy our hobby at the whim of the FCC and congress - no rights IMHO! Best, Dave Wa3gin _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Richard Sent: Thursday, March 04, 2010 2:15 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band In my view this opens the door to other encroachments on our frequency allocations.
RE: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band
Joe, I'd put them in the Licensed Public Safety Broad Band Data allocation 4940-4980Mhz band.plenty of room there.very little usage. My guess is the manufacturer doesn't have the technology or funding needed to build the cheaply made, significantly over priced crawling camera to operate in the GHz ranges. Like BPL.this vendor will disappear once their venture capital has been all used up. The military may purchase some of these units but with tax revenues down nationally, for the next several years, I don't think your local fire or police dept will be spending many dollars on this low value technology. I'm not worried about this order. Best, dave _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of MCH Sent: Thursday, March 04, 2010 2:42 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band The premise is common sense, but, as you say, this is the government. Where would *you* put TV transmitters if not in the TV bands? Joe M. David Jordan wrote: I don't think there is any premise or as you say, ...fact that it should be in the bands where TV is authorized... is relevant. Where the FCC decides to put it is where the fact.
RE: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band
I'm an HFer.Interference doesn't bother me ;-) _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of wd8chl Sent: Thursday, March 04, 2010 2:53 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band On 3/4/2010 1:54 PM, David Jordan wrote: I just read the FCC order.I don't see a significant threat to amateur radio UHF communications from this device. It's operating on a ham band at more than flea power-maybe as much as several watts. How can it NOT interfere? Trust me, it WILL! It defies the laws of physics to generate RF on a frequency without interfering with others on the same frequency within the area.
Re: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band
Mike, I beg to differ with you.. at least here in the NE 220 is heavily used for packet network linking between NY, NJ, CT, and MA. Dave WB2FTX - Original Message - From: Michael Ryan To: Repeater-Builder@yahoogroups.com Sent: Thursday, March 04, 2010 3:15 PM Subject: RE: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band Dave, You speak exactly what I would have said here. I recall the same angst and irritation when the lower end of 220 was lost to United Parcel Service and other entities if there were any. That turned out to be much about nothing as I recall. I won't say NO ONE was using that band at the time, but NO ONE really uses it NOW. I would expect that a little investigating by someone or something that wants spectrum space, has deep pockets or a friend in Washington, could have much of that band if they wanted it. Save for a few repeaters ( like mine ) the occasional weak signal contest which has fewer and fewer users, and some uncoordinated repeater linking devices there ain't much going on up there. -Mike From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of David Jordan Sent: Thursday, March 04, 2010 2:56 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band Richard, The FCC has always had that option to re-assign spectrum.you use the term our frequency which implies you think we have some implied rights to utilize the spectrum. We have no rights, just privileges. The FCC can change those privileges any time they want, as they have just done in the subject case. The doors to encroachments as you say, have always been open, in fact there are no doors. We enjoy our hobby at the whim of the FCC and congress - no rights IMHO! Best, Dave Wa3gin -- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Richard Sent: Thursday, March 04, 2010 2:15 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band In my view this opens the door to other encroachments on our frequency allocations. __ Information from ESET NOD32 Antivirus, version of virus signature database 4916 (20100304) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 4916 (20100304) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 4916 (20100304) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2721 - Release Date: 03/03/10 14:34:00
Re: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band
Regarding the orginal RO, does anyone have access to the comments that were received by the FCC on this proposal? Did the ARRL comment on it? Dave WB2FTX - Original Message - From: kg6ziu To: Repeater-Builder@yahoogroups.com Sent: Thursday, March 04, 2010 6:49 PM Subject: [Repeater-Builder] Re: Fw: FCC RO Involving the Amateur 70cm Band Laryn and others, Here is the link to the RO #08-63 . Please notice the dates on this-it was in 2008... I do not think that the FCC should grant this at all, but we need to let our representatives know both at the ARRL, FCC and senators/congresscritters know that we find this encroachment unacceptable. Maybe they should take over UPS's claim on the 220 band... Phil KK6PE http://fjallfoss.fcc.gov/edocs_public/attachmatch/DA-08-1077A1.txt --- In Repeater-Builder@yahoogroups.com, larynl2 lar...@... wrote: Anyone have a real link to this? Those of us on the Web do not get attachments... Laryn K8TVZ -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2722 - Release Date: 03/04/10 14:34:00
RE: [Repeater-Builder] Fw: FCC RO Involving the Amateur 70cm Band
Ah George, Don't worry! The first time the device fails to deliver the goods to the Public Safety guys, they'll stop using it. Good luck to them. They'll have fun running up against the 1,000watt erp of many 70cm repeaters. 73, Dave Wa3gin _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of George Henry Sent: Wednesday, March 03, 2010 2:15 PM To: repeater-builder@yahoogroups.com Subject: [Repeater-Builder] Fw: FCC RO Involving the Amateur 70cm Band Re: the waiver request by ReconRobotics for 420 - 450 MHz operation. Hams get the shaft again... George, KA3HSW / WQGJ413
RE: [Repeater-Builder] Fw: FCC RO Involving the Amateur 70cm Band
There are plenty of options.the FCC has set aside spectrum just for Public Safety and such devices, but they need input from us or all they hear is the vendor biased story.not sure why the FCC felt compelled to allow this request. Perhaps the vendor was concerned about building attenuation. I believe the erp of the devices is extremely low. I understand future 4G wireless services may be moving to 3.5Ghz, so the really big carriers won't be interested in UHF. The world has to be in a position to provide a dedicated channel per sq meter of area and that number of channels is only available when you start at the 1.9GHhz range and work your way up! 70cm is going to be around for a long time. Enjoy, Dave Wa3gin _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Richard Sent: Wednesday, March 03, 2010 4:10 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Fw: FCC RO Involving the Amateur 70cm Band Since they'd be competing with high powered repeaters and government radars, I thought 2.4 gig would have been a better choice than 70cm, but that's just me... Richard www.n7tgb.net http://www.n7tgb.net/ Government's first duty is to protect the people, not run their lives. -- Ronald Reagan _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of DCFluX Sent: Wednesday, March 03, 2010 12:24 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Fw: FCC RO Involving the Amateur 70cm Band Take that crap up to 2.4 GHz with the rest of the garbage.
RE: [Repeater-Builder] Fw: FCC RO Involving the Amateur 70cm Band
You know Motorola told us the same thing when our FD was getting interference from another jurisdiction on the same frequency. Well the ones that didn't know squat about radio listened to Motorola and well many times the mobiles could not even open the receiver because of the other transmitter capturing the receiver with no PL. Great technology but wrong reason. David From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Brian Raker Sent: Wednesday, March 03, 2010 5:55 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Fw: FCC RO Involving the Amateur 70cm Band Actually, DPL/PL doesn't help. It only signals to the receiver when to open squelch is all. If someone is transmitting and this thing decides to transmit at the same time, you'll get an earful of noise, PL or not. -Brian On Wed, Mar 3, 2010 at 3:02 PM, WA3GIN wa3...@comcast.net wrote: What? Just go and turn on your PL... come on! Lets use the technology that we claim we know so well... - Original Message - From: Brian Raker mailto:brian.ra...@gmail.com To: Repeater-Builder@yahoogroups.com Sent: Wednesday, March 03, 2010 4:51 PM Subject: Re: [Repeater-Builder] Fw: FCC RO Involving the Amateur 70cm Band So... is anyone gonna buy one of these things to see just what kind of interference it will actually make in the 70cm band? 1 watt max and .25 watt nominal is enough to key up a poorly tuned and set up nearby repeater or a distant sensitively configured repeater, and enough to produce decent QRM on existing nearby voice and data communications especially as it is using an analog video and operational control system. -Brian / KF4ZWZ On Wed, Mar 3, 2010 at 1:10 PM, Richard gbis-reply-...@gbis.com wrote: Since they'd be competing with high powered repeaters and government radars, I thought 2.4 gig would have been a better choice than 70cm, but that's just me... Richard www.n7tgb.net http://www.n7tgb.net/ Government's first duty is to protect the people, not run their lives. -- Ronald Reagan _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of DCFluX Sent: Wednesday, March 03, 2010 12:24 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Fw: FCC RO Involving the Amateur 70cm Band Take that crap up to 2.4 GHz with the rest of the garbage.
RE: [Repeater-Builder] PSE 508 Controllers
Yep been running one on our ARMY MARS repeater and working great. Bought another as a spare. David From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of John J. Riddell Sent: Sunday, February 14, 2010 3:06 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] PSE 508 Controllers Has anyone here used the Pion and Simon PSE508 series of controllers in a GE Mastr II ? Is the 508-3 with 4 channels of CTCSS worth considering ? 73 John VE3AMZ
Re: [Repeater-Builder] Trbo to be DOA 2012 Say Hello to Tetra
Why should the hams change at all? What is the driving force to make this change in amateur radio? More repeaters, more users??... Even in the major metro areas with all the supposedly available 2 meter pairs spoken for you can go for days without hearing anything on these machines other than its ID. The demand and use of repeaters is quite different than that of 30 some years ago and a lot of that has to do with the influx of available, cheap and wide coverage cell phone service and the internet.. Likewise when was the last time you heard an autopatch? The status on 440 and 220 is not that much different... 440 is suffering in many area from Pave Paws and 220 is probably not as used due to the rarity of equipment for this band, both transceivers and either off the shelf or easily converted commercial repeaters. Where the growth appears to be now is on 900 Mhz... No ready made amateur equipment but a lot of cheap commercial gear easily converted to ham use, if you ignore the band plan that the ARRL still claims is valid and use a 25 Mhz split which most of the commercial equipment will easily operate. Hey and it's already narrow band. As long as you don't mind the baby monitors and after all don't we now have the primary allocation there? My two cents worth... Dave WB2FTX - Original Message - From: Andrew Seybold To: Repeater-Builder@yahoogroups.com Sent: Sunday, February 14, 2010 9:59 PM Subject: RE: [Repeater-Builder] Trbo to be DOA 2012 Say Hello to Tetra Well-there are several companies which are making 12.5 KHz conversion kits for Mastr II's and other radios, where are not type accepted for commercial service but can be used for ham service, the big issue to me is that the commercial community has years to prepare for 12.5 Hz narrow banding (below 512 MHz) and the vendors have been building systems capable of both wide band and narrow band use for many years. How long will it take to get these same vendors to start providing both 25 and 12.5 and then 6. 25 KHz radios for ham service? You cannot expect hams to simply dump their existing radios and buy new ones-public safety and LMR operators have had a lot of time to prepare so we should have the same option. The bad news is that wide band commercial radios are going to be plentiful and cheap in the next few years as commercial operators are forced to change to 12. 5 KHz channels, it would make more sense for us to be able to take advantage of these WB radios and stay wideband for a few more years than race to keep up the LMR folks. Andy W6AMS From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of j.cherry377 Sent: Sunday, February 14, 2010 6:49 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Trbo to be DOA 2012 Say Hello to Tetra The plan as I have it is to merge P25 and Trbo into a Tetra Product, for release in 2012, at which time Turbo will be discontinued and abandoned as its not true 6.25kc and wont comply with the new 2.5kc standard that all will have to start adhering to. Trbo takes up 12.5kc though it provides 2 voice paths, its not 6.25kc wide. My question is when will the 440 and 2m bands start talking about making a unified 6.25 kc divisible bandplan and apply it nationwide? They will have to do it so might as well get started talking about it. I know that there are a lot of people with 25/30 kc radios that are not going to care for hearing about this. A good first step is to design the layout in 12.5 kc steps for each band and start planning on at least going to 2.5kc deviation around that time.. -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2688 - Release Date: 02/14/10 14:35:00
Re: [Repeater-Builder] Need TU-7 tone board
Steve, If you can't find a used one, Piexx makes an aftermarket equivalent for this and a lot of other tone boards from various line of radios including at least Kenwood and Yaesu. - Original Message - From: KD8BIW To: Repeater-Builder@yahoogroups.com Sent: Friday, February 05, 2010 3:04 AM Subject: [Repeater-Builder] Need TU-7 tone board DOes anyone have a TU-7 tone board for the TM-25XX series radios? If so, please send me price with shipping to 44880. Thanks! Steve KD8BIW -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 02:35:00
Re: [Repeater-Builder] Need TU-7 tone board
Sorry I accidentally sent the message without the link. Steve, If you can't find a used one Piexx makes aftermarket plug in replacments for this and other tone board for both Kenwood and Yaesu. http://www.piexx.com/index.php?main_page=product_infoproducts_id=15 Good luck, 73 Dave WB2FTX - Original Message - From: KD8BIW To: Repeater-Builder@yahoogroups.com Sent: Friday, February 05, 2010 3:04 AM Subject: [Repeater-Builder] Need TU-7 tone board DOes anyone have a TU-7 tone board for the TM-25XX series radios? If so, please send me price with shipping to 44880. Thanks! Steve KD8BIW -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 02:35:00
Re: [Repeater-Builder] Re: Need TU-7 tone board
New boards from Piexx are cheaper than the quoted price for a used board on Ebay. Dave WB2FTX - Original Message - From: Tall Rick To: Repeater-Builder@yahoogroups.com Sent: Friday, February 05, 2010 2:30 PM Subject: [Repeater-Builder] Re: Need TU-7 tone board Steve, You might look at e-Bay. I've seen them there in the $60 to $80 range. Rick KD6ODU 224.340 Keller Peak, CA --- In Repeater-Builder@yahoogroups.com, KD8BIW sdenn...@... wrote: DOes anyone have a TU-7 tone board for the TM-25XX series radios? If so, please send me price with shipping to 44880. Thanks! Steve KD8BIW -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2670 - Release Date: 02/05/10 14:35:00
RE: [Repeater-Builder] Spectra Scan
I don't have the radio or manual with me at this time but I think you need to program scan by going to F2 then select zones then select scan. I have my Spectra set up for Zones so I can have a different scan for the Zone I select. Hope this helps. David From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Kris Kirby Sent: Sunday, January 31, 2010 12:05 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Spectra Scan On Sat, 30 Jan 2010, N9WYS wrote: I am trying to program my 900 MHz Spectra for SCAN. This radio is modified for Conventional/Zones/MPL (with 120 modes). When I go into the CONVENTIONAL CONFIGURATION screen, I have no ability to select SCAN (neither ENABLED nor DISABLED) - NOTHING shows in the menu at all. I MUST be missing something, but I can't for the life of me figure out what it may be. I have the following MOFLAGS set: Bit Flag Setting 2 3 Conv_With_Sys_Scan = ENABLED 3 5 Conv_Message = ENABLED 3 7 Conv_Status = ENABLED 5 2 Conv_OpSel_Scan = ENABLED 5 6 NonPri_Mode_Slaved_Scan = ENABLED 5 7 Pri_Mode_Slaved_Scan = ENABLED What do I need to turn on in the MOFLAGS to get this to scan?? If you use the example MOFLAGS from Batlabs, the radio will be open to almost any feature the MLM supports. So if you use those MOFLAGS and it doesn't work, you probably need to change the MLM to one that supports conventional scan. -- Kris Kirby, KE4AHR Disinformation Analyst
[Repeater-Builder] Cushman CE31-B
Anyone have a service manual for the Cushman CE31-B service Monitor? David WA4ECM
Re: [Repeater-Builder] PC for controller
This has already been done, google Echostation. 73 Dave WB2FTX - Original Message - From: Al Wolfe To: Repeater-Builder@yahoogroups.com Sent: Saturday, January 16, 2010 11:54 AM Subject: [Repeater-Builder] PC for controller The other day some of us were discussing replacing the controller in one of our local repeaters. It is presently an NRHC-4. While throwing ideas around someone suggested why not just use an old PC and sound card. Then we could add bells and whistles as needed. This got us to thinking that maybe this might be a good idea. Then someone said why reinvent the wheel. Why not see what others have done first. So, I'm asking what are your experiences with this concept? What programs are available? Other than some stability issues with Windoz, what are the pitfalls? Thanks, Al, K9SI -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.725 / Virus Database: 270.14.145/2626 - Release Date: 01/16/10 02:35:00
[Repeater-Builder] Motorola Desktrac from Desktrac Base
Wondering what is needed to convert a Desktrac Base to a Desktrac Repeater other than adding a GM300 receiver? I would be considering both 2m and 440 models. I have the duplexers. Dave N2KTO
RE: [Repeater-Builder] Spectra Audio Popping after Capacitor replacement
Yes, you are correct. The hear clear is only used in the 900 mhz spectra. Changing the CAPS should help especially aroung the audio amp chip. I have not had any issues with the VHF Spectras giving a popping sound except I had to replace the audio amp chip in one. It was fun to do but at the same time I replaced the capacitors. I purchased the audio amp chips from Motorola and they weren't too expensive. Sounds like you may have found your problem with the audio. Good luck in the repair of the Spectra. David -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Tim Ahrens Sent: Tuesday, November 24, 2009 10:32 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Spectra Audio Popping after Capacitor replacement Hi David, Is the Hear Clear board only on the 900 mhz spectras? I was looking in my service manual, and it talks about the board plugging into P501, but on my VHF spectras, this plug is unpopulated.. As a side note, when I went to replace the capacitors, I noticed that a fire ant had given it's life while spanning a couple of pins on the audio output TDAxxx part. There seemed to be some 'liquid ant residue' remaining, so perhaps it damaged the audio amp. I guess I'll have to look at the thing with the scope see what's going on in comparison to one that works 'correctly'. Thanks! Tim
RE: [Repeater-Builder] Spectra Audio Popping after Capacitor replacement
Had the same problem with a 900 mhz Spectra. The hear clear board was the problem. Changed it and the popping noise went away. David -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of tahrens301 Sent: Tuesday, November 24, 2009 2:43 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Spectra Audio Popping after Capacitor replacement Hi Folks, I've been working on these Spectras, and so far, the capacitors have done the trick. But on this last radio, the speaker pops whenever the audio path is open (unsquelched, signal, mode change, etc). Just curious if there's something I've missed. Thanks, Tim
RE: [Repeater-Builder] Off topic ... a time for God
AMEN! -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of ki4zji Sent: Saturday, November 21, 2009 9:29 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Off topic ... a time for God I am deeply offended by this. No, not the mention that we should take time out for God. I am offended by the barrage of tirades assaulting Lee for daring to mention God. Lee, good for you! Everyone who is a Christian should be a light in their community, drawing men to Jesus. Oh no - I mentioned Jesus. I guess I will get a box full of email telling me how offensive I am. Perhaps if I mentioned Buddha or Mohammad, I would be ok. But I dared to mention Jesus. Folks, if you live in the United States, you are living in a distinctively CHRISTIAN NATION. Get over the PC garbage that has polluted and is destroying our GREAT CHRISTIAN NATION. The United States is, after all, ONE NATION UNDER GOD. When our fathers founded this country, it was not founded on some nebulous supreme being, it was founded by Christians who were escaping religious persecution. They came to the New World because they wanted to freely worship Jesus. The original colonists as well as those who wrote the foundational documents of this country knew JESUS CHRIST as their personal LORD and SAVIOUR. To them, the name JESUS CHRIST was a name with power, a name to be honored and revered. The name of Jesus was not offensive and was certainly not a swear word to them. Some believe that if we call ourselves a Christian nation, we are forcing Christ on all people. Nothing could be farther from the truth. As Christians, who acknowledge the Bible as their final authority, we must admit that all people have a free will. If someone decides to follow another religion, that is their prerogative, their choice. There is no reason to be offended by that. It is sad to see such replies from what I thought was basically a good group of people. We can peaceably disagree on doctrine, denomination and even politics. That is our RIGHT as citizens. However, when one person is vilified for his willingness to ask you to take a moment out for God, regardless of who you may call God, there is a serious problem. The problem is not with Lee, the problem is with all of you who are persecuting him (and I suppose, now, me). Now, for what I am sure will be the final straw for some of you. I shall quote some Scripture. John 15:25 But this cometh to pass, that the word might be fulfilled that is written in their law, They hated me without a cause. They hated Jesus without cause. What was Jesus here for? To sacrifice Himself to save mankind from their sins. There was no reason for them to hate Jesus. He came to save us all. If I were to run headlong into a burning building to rescue someone from the fire, I would be lauded as a hero. If I should happen to get a little burn, the accolades would be greater. Jesus was God in the flesh. As God, who cannot sin, He took the all the sins of all the world upon Him. Imagine the guilt you would hopefully feel if you murdered an innocent child. Aside from the physical torture He endured in the process of the crucifixion, Jesus took all that guilt of all our sins upon Himself for us. Where are His accolades? Why is He not a hero among you? If you would like to discuss this with me, please email me directly. rr...@librtynet. mailto:rross%40librtynet.com com Sincerely, Randy
RE: [Repeater-Builder] Programming ASTRO SPECTRA Range2 to Range1
The RSS you have needs to be run on a DOS machine. I use an older 166 P1 machine that I bring up in DOS. I have Spectras on VHF high and 900 mhz. You will need to hack the software but you can find all the info you need on the WEB site BATLABS. I have my Spectra on both AF MARS and ARMY MARS repeaters here in the DFW area and have not seen any degradation in sensitivity or power. Good luck with programming the Spectra Astros. David -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of w7...@comcast.net Sent: Saturday, November 21, 2009 1:13 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Programming ASTRO SPECTRA Range2 to Range1 Greeting Group, I am new to Motorola ASTRO SPECTRA programming, and have been elected to program a few radios for our Base Support Team (USAF MARS). T04KLF9PW4AN-UCM radios - A5 head The RSS available is [RVN4001N] R06.00.05 Is this made for a DOS machine, or is it a Win 3.11 type RSS? Another snag is that the radios are on [Range 2], and I need to program [Range 1(142.xxx / 143.xxx)] frequencies into them! I think I have to do some hex editingis that correct? Is ther going to be a slight loss of sens., due to different preselectors? The radios will be used with a repeater that is within ten miles, so a little less sens. can be tolerated. I do appreciate any assistence and wisdom. Tim W7TRH __
[Repeater-Builder] FS VHF Mark 4 repeater
I have a very clean Kendecom Mark 4 VHF repeater for sale options include voice and autopatch. Presently on 145.390 with a pl tone of 151.4hz. The repeater has been bench tested and preforms to factory specs. David Epley, N9CZV Winchester, IN
[Repeater-Builder] Re: Weird Interference between APRS and 2-M repeater help needed
First of all you do not have enough isolation between antennas with only two wavelenghts horizonal seperation. A single bandpass cavity will not be enough. I would try 2 bandpass/bandreject cavities. Reject set for the TX freq and the other set for the RX freq. I believe that RF from your repeater is exciting the RF amp in your aprs tranceiver, see if the problem is still present with the aprs hooked up to the antenna but with your power supply disconnected. Most people used a simple mobile for aprs which creates alot of headaches where several transmitters are used. They just dont have the filtering needed for this application. You should also use a circulator on your aprs radio. This will help keep RF out of your aprs transmitter. David Epley, N9CZV Winchester, In --- In Repeater-Builder@yahoogroups.com, bullmus kf7...@... wrote: Here's a weird one. I have my ideas, but I need to bounce it off a couple brains bigger than mine. APRS on 144.39, and FM Voice repeater at 147.24/147.84. Antennas are identical Telewave 4-bay stacked dipole. Both antennas are horizontal to each other, and roughly two wavelengths from each other center loop to center loop. The problem... When folks are using the voice repeater, then APRS transmits a packet, it generates noise on the voice repeater the listener hears. However, when APRS stops transmitting, the noise continues on the voice repeater until the voice repeater is unkeyed. In our effort to troubleshoot, we found a couple extra oddities. For example, with APRS antenna unhooked and the APRS radio turned off, when we attempt to reattach the APRS antenna, we get all kinds of popping and crackling on that turned off radio. We've checked grounding until we're blue in the face, and everything appears to be in order. We have tried different cables on everything, one at a time, bypassing the polyphaser, rack bulkhead connectors, etc... No fix. We discovered the problem when we began noticing APRS wasn't getting out. Troubleshooting identified that the single band-pass can we had on the APRS was reflecting 100% of the transmit power. We do not know the history or condition of this can in the first place. It is very possible it has been faulty for years, and only recently began to degrade to worthless. We have temporarily bypassed the can, and expected possibly a little noise on the voice repeater because of it, but we didn't expect the weird things we're getting now like the noise continuing even when APRS isn't transmitting, and the level of desense it creates. APRS is transmitting 5 watts. The Voice repeater is I believe 25 watts. Thanks for the help...
[Repeater-Builder] remote head ?
Hi Everyone, i have a remote head fm828/25 A/R MK2 radio with a remote head that i hope to use as a repeater there are two sockets on the back of the radio one has a red strip around it what socket do i plug the remote head into to see if the radio work's ??...Rgs David VK4DJC.
Re: [Repeater-Builder] Double Shielded Cable
And usually RF Connection will cost less than others, I have requested several bids for custom made doubly shielded cable from RF Connection and others and usually RF Connection has the lowest quote and best delivery terms, plus they don't flinch at a small order like only two cables. Good quality cable and well made connections. 73 Dave WB2FTX - Original Message - From: Mark To: Repeater-Builder@yahoogroups.com Sent: Monday, October 26, 2009 10:22 PM Subject: RE: [Repeater-Builder] Double Shielded Cable I'll second that. Joel is a great guy to do business with, and he'll make any cable/connector combination you need. Mark - N9WYS From: Repeater-Builder@yahoogroups.com On Behalf Of Michael Ryan Call Joel at the RF Connection in Gaithersburg, MD . He can make up whatever you want with whatever connectors you want. He is on the web. - Mike -- On Sun, 10/25/09, kc8fwd wrote: Hello, What is a good source to get Double Shielded Cable with N connectors to go from the duplexer to receiver and duplexer to transmitter? What kind of coax etc.All info is appreciated Thanke Mike KC8FWD -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.698 / Virus Database: 270.14.33/2461 - Release Date: 10/26/09 16:22:00
RE: [Repeater-Builder] kendecom repeaters on 220
Why don't you call the factory! They are very helpful if you don't keep them on the phone too long. _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Kevin Custer Sent: Thursday, October 22, 2009 3:02 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] kendecom repeaters on 220 n...@no6b.com wrote: At 10/21/2009 13:23, you wrote: Anybody got any suggestions about fixing the squelch circuit? (Spare me the get a REAL repeater comments please!) Is the MICOR squelch still available? Anybody done it to one of these? I added a Micor squelch board from LinkComm to a Kendecom RX once. It worked fairly well, though it was still somewhat susceptible to off-channel signals, making the squelch excessively tight whenever a strong signal was present 15 kHz away, regardless of modulation level on that signal. I suspect this to be due to design flaw in the MR4 design (mid-stage IF amplifier overload). A 10 kHz LPF in front of the Micor squelch board may cure that problem. Bob NO6B Funny you should mention that, Bob... The Kendecom repeater the local club had would indeed overload. If you were within a mile of the repeater site and forgot to go to low power on the mobile rig, the repeater would remind you - by cutting you off. If you reduced the power level on your radio to 5 watts, you could use the repeater almost right up to the site. This is the only repeater we have utilized at that site that exhibited this behavior. It was replaced about 7 years ago with a 30 year old MICOR. Kevin Custer
RE: [Repeater-Builder] Antenna question
Have a G7-144 on our ARMY MARS repeater here and has been up since 1998 with no antenna issues. We removed the clamps and drilled holes after tuning the antenna to our frequency and used sheet metal screws to secure the tubing. The antenna is mounted on the top of a building about 180 ft. David -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Eric Lemmon Sent: Sunday, October 11, 2009 11:45 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Antenna question John, My suggestion is simple: Find the money to buy a decent antenna. Unless your time has no value, your gasoline is free, and you enjoy tower climbing, don't mess with cheap antennas. The great majority of available funds should go into the antenna, feedline, and outdoor mounting hardware- the things that are costly to buy, difficult to install, and the most likely to break during bad weather when it may be dangerous or impossible to get to the site to make repairs. Are you planning to support the Heliax with standoff cushion clamps made of stainless steel, or were you planning to just tie-wrap it to the tower legs? At $20 or so each, just the Heliax supports become a high-cost item when you install one every 3 or 4 feet. The indoor stuff like the repeater and duplexer can be upgraded over time, in the relative comfort and safety of the equipment shelter. Moreover, IMHO, it is not prudent to spend big bucks on the radio and duplexer up front, and then skimp on stuff that goes on the tower. The Hustler G7-144 is really too flimsy to have in repeater service where it is exposed to high winds and temperature extremes. I assembled a G7-144 antenna for my radio club's base station, and I took pains to use Penetrox on all aluminum joints and silicone sealant or Scotch-Kote on dissimilar-material joints. Despite these precautions, water leaked into the base and caused severe corrosion. It's practically junk now. If your repeater site is at one side of the desired coverage area, you might look into offset-pattern dipole antennas, Yagis, or corner reflectors. It makes no sense to put an omni antenna in service where all of the potential users are in one sector. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com] On Behalf Of W3ML Sent: Sunday, October 11, 2009 7:09 AM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Subject: [Repeater-Builder] Antenna question Hi again, We are looking to replace that used antenna after getting 100 feet of new Andrew 1/2 donated to our club. Now I realize that the DB type antenna is the best, but we do not have 800 bucks to buy one. So, my question is should we just get a new G7-144 to replace the used G7 or is there another type of vertical that we could get that would be good. Being in North Indiana, our winters can be quite brutal, so we would probably want something durable. Any suggestions. 73 John, W3ML
RE: [Repeater-Builder] Motorola Suitcase repeater
I am asking 400 for it. David Epley, N9CZV Randolph County Emergency Coordinator 4866N 400E Winchester, Indiana 47394 Cell765.546.2592 n9...@arrl.net
RE: [Repeater-Builder] Re: Radio for repeater use Response to Tom's comments
Sounds like he has a noise source near by causing him his problems. Probably not in the repeater at all. Had similar experience with a 50 mhz repeater located on a mountain top. Grounding wasn't the best and any noise generated by the wind moving the towers made the repeater at times almost unusable. Times signals were full quieting and then they were noisy. David -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Chuck Kelsey Sent: Monday, October 05, 2009 7:47 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Radio for repeater use Response to Tom's comments I'd suggest turning the power up more. You have it set at about 50% and the transmitter may be intermittently spurious at that level. Watch the wattmeter when things act up and see if anything changes when you notice the desense happening. You can also pull the TX ICOM when the problem is happening and see if the receive clears up on the local speaker. There are so many things that could be at fault - loose connector, bad antenna, problem with transmitter, problem with receiver, intermod issue, etc. Ask the people you got the radio from if they had the same problem with it. Chuck WB2EDV - Original Message - From: W3ML w...@arrl.net mailto:w3ml%40arrl.net To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Sent: Monday, October 05, 2009 8:33 PM Subject: [Repeater-Builder] Re: Radio for repeater use Response to Tom's comments Hi Tom, I did crank up the power to 55 watts out of radio and that gives me 45 out of the duplexer. Decided on this wattage until I can figure the problem better. It is working better than before, but still having trouble. So from what you said about power coming out duplexer, the duplexer must still be okay. However, during the day today there were 3 hams talking and they said (later) that all of them were loud and clear. But, when I got home and tried to call one of them, he was covered in noise. Later one of the others called in and he would be clear, then the repeater would cut out and his signal would be gone, then it would come back with noise on his signal and then clear again. Then the other one came in with a lot of noise, then he would come in with a little noise and then no noise at all and then back again through this cycle. This cycle of noise and then no noise is driving me crazy. The set up is this: GE Mastr II VHF mobile running into a 6 cavity duplexer set to our freqs with a service monitor prior to bringing it here. There is a bandpass filter on the receive side after the duplexer and before the radio. We have used 1/2 inch hardline going up to the used G7-144. Then only thing I can think of is the radio is bad, the antenna is no good and the coax is shot. Now, the radio was given to us by a group that had used it, but decided to replace it with a Kenwood. I am thinking that they had the same problem and that is why they gave it away. Any advice would be greatly appreciated. 73 John, W3ML - In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, W9SRV tgundo2...@... wrote: Ok- 1. Where are you checking the swr at in the chain? Make sure you bypass the duplexers to check the antenna, the cans can throw off the reading on some meters like you describe using. If you are less than 1.5:1 I would not worry too much more about it, any reflected power will get eaten up back in the cans. If you are really concerned about protecting the TX put a circulator in-line with it. 2. Make sure all the interconnecting cables are good shielded and not foil/ braid type. RG-213 and RG-400 are good choices, though there are a few more. 3. Terminate into a good dummy load. Set you output power to 80-90W. Then run thru the duplexer and check the power coming out of the cans. You should see something like 60-70w, depending on the spec of the duplexer. If your seeing much less than you may have a duplexer tuning issue. Figure out the real problem, let the radio run at a real spec power output, than absorb the title of far lord as every one thanks you for giving the repeater twice as many s-units. (then be prepared for the next round of complaints that become your problem) Tom W9SRV Sent from my iPhone On Oct 4, 2009, at 5:46 PM, W3ML w...@... wrote: No, except when it was at the 2o watts the swr was almost 1 and someone said that was the problem causing the de-sense. So we were afraid to run it higher. Like you said guess it was only a problem from running too little of power. Thanks and 73 John --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, W9SRV tgundo2003@ wrote: You answered your own question : So it appears that this radio, which is a GE Mastr II mobile, doesn't like to run
[Repeater-Builder] Motorola Suitcase repeater
I have a Motorola Suitcase UHF Repeater for sale. This repeater has been put on the amateur bands by a Motorola service shop. Notch duplexers and tone. Anyone interested send me an email. David Epley, N9CZV Randolph County Emergency Coordinator 4866N 400E Winchester, Indiana 47394 Cell765.546.2592 n9...@arrl.net image001.gif
[Repeater-Builder] Repeater for sale
I have an RF Technology VHF repeater for sale. !00 watts 140-162Mhz programmable frequency and pl tone. Comes with or without power supply. Programming software and cable. Never put into service. David Epley, N9CZV Randolph County Emergency Coordinator 4866N 400E Winchester, Indiana 47394 Cell765.546.2592 n9...@arrl.net image001.gif
RE: [Repeater-Builder] Re: Anybody have some REALLY old Moto manuals?
I have a manual for the old 150 - 174 MC T-Power that has the diagram for Carrier and Dual Squelch. Cannot find any reference to what the PL tones are but I would assume that they have not changed over the years. David -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of burkleoj Sent: Friday, September 18, 2009 9:35 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Anybody have some REALLY old Moto manuals? Mike and Mike, I was the one who had one of the original invitations from Neil to come over and I asked Neil if Chris was welcome to join me. I just looked through the 30D manual set and there was no mention of PL Tones. But if anybody needs Dynamotor information, that I can help with. I am off to look through the 80D manuals now. Hopefully I find something there. I should of grabbed the manual on the first generation of UHF community repeaters that Motorola built. Joe --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, k7...@... wrote: Hi Joe, I was not sure who all went over and got all his stuff. I know Chris went over and got a bunch of hardware but If I know Chris he would never take Motorola manuals unless there was GE manuals. Mike From: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com] On Behalf Of burkleoj Sent: Thursday, September 17, 2009 11:09 PM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Subject: [Repeater-Builder] Re: Anybody have some REALLY old Moto manuals? Mike and Mike, I have a Motorola twin coffin 30D set of manuals out of Neil's collection. I will have a look tomorrow and see what I can find out for you as to what is listed for PL Tones. Joe - WA7JAW --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , k7pfj@ wrote: Hi Mike, I would say Neil Mckie WA6KLA should help you out with any OLD Motorola manual that they have ever printed since 1948. But he has been locked up for several years and all of his stuff he gave away. Mike Mullarkey K7PFJ From: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of Mike Morris WA6ILQ Sent: Thursday, September 17, 2009 7:09 PM To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Anybody have some REALLY old Moto manuals? If so, I need a favor. The first implementation of PL used about 20 tones. The 32-tone standard list didn't come until later. Does anybody have a copy of that early tone list? It would have been somewhere in the 1950-1955 time frame. Thanks in advance. Mike WA6ILQ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.104/2379 - Release Date: 09/17/09 15:55:00 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.104/2379 - Release Date: 09/17/09 15:55:00
[Repeater-Builder] Wanted: Hardline Connector installed N NJ
Wanted Someone to install 4, N connectors on 7/8ths hardline, before Sunday 13 Sept. Location is Northern NJ. We could possibly bring the Hard Line to you for the install. Please contact Dave Hubbell 862.266.2339 Thanks in advance Dave
RE: [Repeater-Builder] HF Remote Bases - Illegal?
Here in Arlington County, VA OEM/RACES we have two Internet Remote Amateur Radio (IRAR) Stations build around the Kenwood TS2K w/ 80-6M and 2m-70cm antennas. Our RACES volunteers check-in to the weekly exercise nets using the IRAR stations when they are traveling for business or just for fun. One of the stations has antennas mounted on the roof of the court house about 425ft above sea level. That station on VHF-UHF can hit most repeaters 50-60 miles away; lots of fun. Riley Hollingsworth has toured the stations as have other FCC officials and there is no regulation issue involved with operations of this type. It is not a problem! Where there is a problem is when folks attempt to use Echo Link for HF. The end user has no control over the freq. and the minute the Echo Link connection is made it announces itself over the HF station. Our HF net on 40m had a problem with a ham up in Erie, PA who thought it was cool to have Echo Link on his HF radio but the damn announcements would come in over top on-going conversations creating a lot of confusion. That was not a good use the Internet and it created some ill will. I think the folks at Echo Link have since create an application that offers better controls that eliminate unwanted interference. Not sure about that part of it. 73, Dave Wa3gin _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of larryjspamme...@teleport.com Sent: Friday, September 04, 2009 12:43 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] HF Remote Bases - Illegal? From the tenmet...@yahoogroups mailing list (mainly a group of people who participate in the 10-10 Club awards programs.) There's a discussion on the list about how HF Remote Base stations are most likely not legal.
RE: [Repeater-Builder] HF Remote Bases - Illegal?
Well, the operator knows that EL broadcast immediately after the IP connection is established. SO, in my view the operator should know better than to place the radio on top of a net freq. I'm speaking of 'control' operator, not the user at the remote end of the Internet connection. Best, dave _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of MCH Sent: Friday, September 04, 2009 2:01 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] HF Remote Bases - Illegal? EL is just another control link method - in his case land line. That said, EL should be smart enough to not transmit on active frequencies. That's a shortcoming of EL or the interfacing, not necessarily the operator.
RE: [Repeater-Builder] HF Remote Bases - Illegal?
I'm glad to see EL was enhanced. When we had trouble a few years ago it did not have those features. Best, dave _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of James Delancy Sent: Friday, September 04, 2009 2:19 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] HF Remote Bases - Illegal? Echolink has the capability to not transmit over active frequencies. You can also shut off the announcements if you desire. If you use COR instead of VOX with echolink, it works even better. James MCH wrote: EL is just another control link method - in his case land line. That said, EL should be smart enough to not transmit on active frequencies. That's a shortcoming of EL or the interfacing, not necessarily the operator. Joe M. David Jordan wrote: Here in Arlington County, VA OEM/RACES we have two Internet Remote Amateur Radio (IRAR) Stations build around the Kenwood TS2K w/ 80-6M and 2m-70cm antennas. Our RACES volunteers check-in to the weekly exercise nets using the IRAR stations when they are traveling for business or just for fun. One of the stations has antennas mounted on the roof of the court house about 425ft above sea level. That station on VHF-UHF can hit most repeaters 50-60 miles away; lots of fun. Riley Hollingsworth has toured the stations as have other FCC officials and there is no regulation issue involved with operations of this type. It is not a problem! Where there is a problem is when folks attempt to use Echo Link for HF. The end user has no control over the freq. and the minute the Echo Link connection is made it announces itself over the HF station. Our HF net on 40m had a problem with a ham up in Erie, PA who thought it was cool to have Echo Link on his HF radio but the damn announcements would come in over top on-going conversations creating a lot of confusion. That was not a good use the Internet and it created some ill will. I think the folks at Echo Link have since create an application that offers better controls that eliminate unwanted interference. Not sure about that part of it. 73, Dave Wa3gin -- *From:* Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com [mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com] *On Behalf Of *larryjspammenot@ mailto:%2Alarryjspammenot%40teleport.com teleport.com *Sent:* Friday, September 04, 2009 12:43 PM *To:* Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com *Subject:* [Repeater-Builder] HF Remote Bases - Illegal? From the tenmet...@yahoogroups mailing list (mainly a group of people who participate in the 10-10 Club awards programs.) There's a discussion on the list about how HF Remote Base stations are most likely not legal.
RE: Re: [Repeater-Builder] Re: EOC Frequencies Available?
I think the requirement over here is Technician class. _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of dmur...@verizon.net Sent: Monday, August 31, 2009 9:20 AM To: Repeater-Builder@yahoogroups.com Cc: Repeater-Builder@yahoogroups.com Subject: Re: Re: [Repeater-Builder] Re: EOC Frequencies Available? True, MARS has changed with the times and now they are making it a requirement to have at least a General license. When I first got into MARS in the 60s I was able to start off with my NOVICE class license. MARS has had some hard times with frequency allocations sharing some of the spectrum with cross the border comms but today they are a valuable part of DOMS and FEMA for comms support. David
RE: [Repeater-Builder] Re: EOC Frequencies Available?
That was a good recommendation whoever made it. I heard NAVY MARS has been shut-down. Please go direct on further discussion about MARS.doesn't have much to do with repeaters. dave _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of dmur...@verizon.net Sent: Monday, August 31, 2009 9:34 AM To: dmur...@verizon.net Cc: Repeater-Builder@yahoogroups.com; Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: EOC Frequencies Available? Per the new training from Cheif ARMY MARS the new requirement is to have a General class amateur ticket. Right now they are giving 1 year for Technicians to up-grade to General. Not sure what Air Force or NAVY are requiring.
RE: [Repeater-Builder] Re: EOC Frequencies Available?
There are NO MARS frequencies for HAMS. David -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of WA3GIN Sent: Sunday, August 30, 2009 4:44 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: EOC Frequencies Available? The RACES freqs. have been closed down for some time now. Just no need for them. It wouldn't surprise me if MARS freqs. for hams also disappears. - Original Message - From: Chuck Kelsey mailto:wb2...@roadrunner.com To: Repeater-Builder@ mailto:Repeater-Builder@yahoogroups.com yahoogroups.com Sent: Sunday, August 30, 2009 4:21 PM Subject: Re: [Repeater-Builder] Re: EOC Frequencies Available? There used to be RACES frequencies, but I think that provision went away years ago. Not sure. Chuck WB2EDV . http://geo.yahoo.com/serv?s=97359714/grpId=104168/grpspId=1705063108/msgId= 93721/stime=1251663663/nc1=1/nc2=2/nc3=3
RE: [Repeater-Builder] Mastr II Repeater Controller Recommendation
I have four of the ARCOM controllers and have had excellent performance. Ken is responsive when asked reasonable questions even though the answers are in the manual, haha. Best, Dave Wa3gin _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Tedd Doda Sent: Tuesday, August 25, 2009 8:36 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Mastr II Repeater Controller Recommendation Rick Szajkowski wrote: if you want to support a ham .. and a DARN good controller . Arcom 210 I have very good luck with my 210 and Ken is a verry stand up kind of guy ! I agree with Rick. I have the 210 controlling 2 Mastr II repeaters (UHF and 6m) and a Phoenix link radio. what can I say, I like GE :) Tedd Doda, VE3TJD
Re: [Repeater-Builder] maratrac door stop ??
Light a cigarette, and blow the smoke back in it, turn it on and see if it works. Sorry, I have bricked enough equipment in my time, just feels nice to know that I am not the only one. From: Mac McCullough w...@austin.rr.com To: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 25, 2009 12:58:59 PM Subject: Re: [Repeater-Builder] maratrac door stop ?? Readers, have a i made a door stop or does experience have some solutions, as things JUST happen, my MARATRAC was plugged up to a SPECTRA 9000 head... the genie came out of the bottle, and the maratrac emitted a few puffs of smoke along the way... experiences and suggestions welcomed .. thanx mac/mc w5mc
[Repeater-Builder] DB 4062 Duplexer
Has anyone replaced the jumpers on a DB 4062 duplexer with Andrews ¼ inch hardline? David Epley, N9CZV Randolph County Emergency Coordinator 4866N 400E Winchester, Indiana 47394 Cell765.546.2592 n9...@arrl.net image001.gif
RE: [Repeater-Builder] Re: Closed Repeaters
I'm not sure how long many on this board have been in ham radio but years ago when getting a license for a ham repeater, yes there was a special license, it was mandatory that you had a receiver monitoring the output of your repeater and if the frequency was in use the repeater was not to transmit to cause interference to an existing conversation. Today if someone is using the output of a repeater frequency for a simplex conversation and someone else wanted to use the repeater then there would be interference to the conversation that was first on that frequency. Could this be considered malicious interference? There are enough simplex frequencies available that there should not be a need to use a frequency that has a repeater output. I listen/scan the basic simplex frequencies and usually hear one or two conversations a week. Most of the simplex frequencies never are used. David WA4ECM -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Cort Buffington Sent: Sunday, July 26, 2009 10:17 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Re: Closed Repeaters When you turn on your 2M radio and tune it to 146.520 and transmit it is now using public spectrum, move over, hand me you mic, I now have the RIGHT to use your radio. I think there is a premise problem here. I have never assumed that because I place a repeater on the air, on a frequency pair, that I have any expectation of exclusive right to those frequencies. Also consider how much of our debate is actually part 97 and how much we are debating long held best practice and gentleman's agreement. I don't think operating simplex on a repeater output is malicious interference if it's not walking over the repeater transmitter. I think if you want closed repeater access that you should use PL, or better, DPL, or best, DTMF access (turn it on when you use it). I think the number of times someone would operate simplex on a repeater input as a necessity of band congestion and just happen to use the same PL/DPL as the repeater is astronomical... unless the person were just trying to cause trouble... oh wait, that would then be malicious interference. I have the view I do on this because I do not hold the premise that because I have a coordinated repeater that I have the right to the spectrum. And actually none of us have the RIGHT to use the spectrum. We are granted the PRIVILEGE of using it by the government by obtaining the proper class amateur radio license. Getting along, being considerate, willing to compromise, and making and following our own rules is a big part of why the government has been as good as it has to Amateur radio. For example, there are no bandplans in part 97... those are things we agreed to on our own. Maybe if there's such a shortage of repeater frequencies and a huge pent up demand for them we should consider changing our bandplans? I know there are some areas of the country that have problems using 440 (I'm really sorry guys, I wish you didn't have those restrictions). the amateur 440 band is 30MHz wide. A repeater takes 2 x 5kHz channels. Jesus people, what are we fighting about? On Jul 26, 2009, at 8:14 AM, Dennis Zabawa wrote: The point has been made that a closed repeater (actually any repeater) is private property and others have no right to utilize it. I would agree to that premise except for the fact that the repeater utilizes PUBLIC spectrum. The analogy would be: I have a large tent that I like to set up on my property. If I take that same tent and permanently set it up in a public park and, I keep others from entering my tent, I am using PUBLIC property for my own, exclusive use. Would that set well with most of you? I have a closed repeater that has PUBLIC spectrum coordinated for it. That has the effect of allocating that PUBLIC asset for my exclusive use. Why should a repeater be different than the tent? -- Cort Buffington H: +1-785-838-3034 M: +1-785-865-7206
RE: [Repeater-Builder] Re: Echoing
Sounds like your transmitter has spurs and it is drifting getting into the receiver. I had this happen to a GE MASTR II repeater that one of the HAMS put a filter cavity on the transmitter to fix a desense problem. When the repeater was first keyed after being idle for a while it had spurs like crazy and not only caused interference to their repeater but others as it climbed up the band. Get a good spectrum analyzer and look at the spectrum that the transmitter is transmitting on. David -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Michael J.Talkington Sent: Monday, June 29, 2009 2:46 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Echoing It sounds like it is repeating the same thing twice like a echo.Sometimes it starts to echo then it turns to noise till the user unkeys.I have not heard it in a week and sometimes it happens for hours.When this echoing is happening and the Repeater ids or says one of the messages stored in the controller it goes away.To me I think it does not happen because the receiver is not being used when the messages or id is happening as everyone waits till it is done.Thanks Mike KC8FWD --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, Eric Lowell elowell9...@... wrote: Can you define and describe what you mean by echoing? I've not heard that term used with regard to a repeater. Might be a regional usage? Thanks, de W1EL Eric Lowell Eastern Maine Electronics Inc. 48 Loon Road Wesley ME 04686 eme@... www.satnetmaine.com 207-210-7469 --- On Mon, 6/29/09, Michael J.Talkington kc8...@... wrote: From: Michael J.Talkington kc8...@... Subject: [Repeater-Builder] Echoing To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Date: Monday, June 29, 2009, 9:27 AM Hello, The other day I overheard a few people talking about the local repeater echoing once in a while. I have heard it also and it is just random. now one of them said that the duplexers probably need retuned as the depth of the notch is not enough.Has any one ever experienced this before? thanks Mike KC8FWD
[Repeater-Builder] WTB Motorola Desktrac UHF or VHF Ham Band 40w
I am looking for Motorola Desktracs on the ham bands. I need both the UHF and VHF units at the 40w output level. N2KTO Dave Hubbell 862.266.2339
[Repeater-Builder] East Central Indiana Repeaters
I would like to let the owners/trustees of amateur repeaters in east central Indiana know that there are several hams using local repeaters for business. These individuals have been warned but do not seem to care. You may contact me directly for the call signs. David Epley, N9CZV Randolph County Emergency Coordinator 4866N 400E Winchester, Indiana 47394 Cell765.546.2592 n9...@arrl.net image001.gif
[Repeater-Builder] Wacom WP-652 duplexer
Anyone have tuning instructions for a Wacom WP-652 220 Mhz duplexer? Dave WB2FTX
Re: [Repeater-Builder] Wacom WP-652 duplexer
Kevin and all, Thanks... looked at the listing for the other Wacom BPBR units but wasn't sure it also applied to the WP-652... I have experience with similar duplexers so looks like it will be easy. 73 Dave WB2FTX - Original Message - From: Kevin Custer To: Repeater-Builder@yahoogroups.com Sent: Friday, June 05, 2009 8:42 AM Subject: Re: [Repeater-Builder] Wacom WP-652 duplexer I should have also mentioned that even though the WP-652 is not listed - it tunes the same as the WP-641, with the obvious difference in TX to RX spacing. So, the tuning instructions for the other WP-xyz series can also be used to tune the WP-652. Sorry for any confusion. Kevin Custer David Struebel wrote: Anyone have tuning instructions for a Wacom WP-652 220 Mhz duplexer? Dave WB2FTX http://www.repeater-builder.com/antenna/ant-sys-index.html Scroll down to the Wacom section... Kevin Custer -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.339 / Virus Database: 270.12.53/2156 - Release Date: 06/05/09 06:24:00
Re: [Repeater-Builder] Repeater Link Identification
Use a separate ID'r like the http://www.hamgadgets.com/store/product_info.php?cPath=21products_id=64 hamgadets ID'r. I used it for link and ID on main repeater. Like you said, if you set it up to ID without tone, your all set. The IDer has a busy ID delay that you can delay the ID until QSO is complete and many other features that help in projects like this. Works very well for the cost for everything I have used it for. You can see my first phase I used it in last fall, now I have much more into it but you get the idea. http://gmrs.w1ckd.com/specifications.htm from my site Good luck From: crackedofn0de crac...@n0de.org To: Repeater-Builder@yahoogroups.com Sent: Friday, June 5, 2009 2:31:58 PM Subject: [Repeater-Builder] Repeater Link Identification I'm looking into linking two repeaters with a simple pair of remote base radios but I can't think of a way to elegantly handle the ID on those link transmitters. It's easy enough to prevent an ID from coming out the remote repeater by just sending it without a PL tone, but what happens when a QSO is in progress and a controller decides it's time to ID on the link? The link would be out of service during the ID. I can think of ways to signal users on both repeaters to please hold until the link is done with the ID, but I'm not so sure I like that idea. Any slick solutions? Lets assume Arcom RC-210 controllers on both repeaters. James K7ICU
Re: [Repeater-Builder] Re:Looking for 220 Repeater Antenna
If you go to this site on the Repeater Builder web page there is a very nice and inexpensive fiberglass antenna for 220 MHz. I'm running one on my repeater without issues. Antenna is made by Tram. http://www.repeater-builder.com/products/220antennas.html 73 Dave WB2FTX - Original Message - From: Roger White To: Repeater-Builder@yahoogroups.com Sent: Tuesday, June 02, 2009 6:43 AM Subject: Re: [Repeater-Builder] Re:Looking for 220 Repeater Antenna I ordered a dB224JJ from Hutton Communications a number of years ago. It sounded like they had not built one in quite awhile, but they did build one for our club at Texas Instruments. I remember it took a number of months do the antenna, indicating it was not in stock at the time of the order. It was not cheap, in the $500 to 700 range. I would call them and see if they would do a special. www.huttononline.com 2520 Marsh Ln Carrollton, Texas 75006 972 417-0100 Roger W5RDW Murphy, Texas - Original Message - From: Tim and Janet To: Repeater-Builder@yahoogroups.com Sent: Monday, June 01, 2009 10:19 PM Subject: [Repeater-Builder] Re:Looking for 220 Repeater Antenna We are currently using a G7-220 on our repeater. We did have problems with the first one we put in the air. The current one is also supported near the top with a standoff to help stabilize it. We too have been in search of a better antenna for this band. The DB224-JJ is difficult at best to find used. They and most other commercial manufacturers no longer supply them. The ones that do are priced at well over $1000. If anyone has a good one to sell please let me know. Maybe if we could get a order of several at one time we could convince them to do a production run for us as long as the price is reasonable. Tim N4CKV repeater - Original Message - From: Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Sent: Monday, June 01, 2009 9:38 PM Subject: [Repeater-Builder] Digest Number 6746[1 Attachment] Repeater Builder Re: Looking for 220 Repeater Antenna Posted by: James Adkins adkins.ja...@gmail.com kb0nhx Mon Jun 1, 2009 9:27 am (PDT) If you can find an Andrew DB224-JJ for the 220 ham band, that'd be ideal on the used market. Our club is using another discontinued Andrew product, a DB-573-EE. It's a 3 dB fiberglass omni. It's spec'd for 217-222 MHz, but we use it for 222.680 receive and 224.280 for TX and it sweeps and works fine. See www.nixahams.net and click on the repeaters link on the left for more info. 73, James Adkins, KB0NHX -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.339 / Virus Database: 270.12.50/2150 - Release Date: 06/02/09 06:47:00
[Repeater-Builder] 440 duplexer on 3rd harmonic for 1.2 GHz
I've seen references to the use of a 440 duplexer on the third harmonic for 1.2 GHZ use... What would be better, a plain notch type, 4 or 6 cavitiy unit, or a BP/BR type... Thinking that the notch reject would be easier especially when considering it's a 20 MHz split for 1.2 repeaters. Dave WB2FTX
[Repeater-Builder] Adding Extra Cavities to Duplexer
I have a Phelps Dodge 506-1 four cavity duplexer. Just recently picked up two additional cavities from someone who was parting out his duplexer... all cavities are BP/BR... Would like to add these to the duplexer to get additional isolation. The original duplexer is spec'd at 80 dB isolation... What do you think I can get with the two additional cans? I realize the insertion loss will be higher.. Any idea how much? The cabling between the cans is still 1/4 wavelength in coax, right?? since I will have to add some cabling...I have seen some discussion in the duplexer info on the site about maybe using a diffrent length cable when adding more cavities... Can anyone comment on all this? Dave WB2FTX No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.5.325 / Virus Database: 270.12.26/2110 - Release Date: 05/12/09 06:22:00
Re: [Repeater-Builder] Hello
The squelch in a GM300 is internal. http://www.repeater-builder.com/maxtrac/gm300-squelch-mod.html if you check this squelch mod, and the POT next to the cap is the squelch adjustment. From: tansugunal tansugu...@yahoo.com To: Repeater-Builder@yahoogroups.com Sent: Tuesday, April 28, 2009 7:01:27 PM Subject: [Repeater-Builder] Hello Guys we have a Radius GM300 repeater. It has a good location.And hardly mounted there. Now it takes some noise.And sometimes self tx by hours.We know we have to set the squelch by programming. But I wanna know is there any short way to increase the squelch manually ?
RE: [Repeater-Builder] Re: PURC5000 Repeater Controller Interfacing?
Use L 12 for your audio input David Epley, N9CZV Randolph County Emergency Coordinator 4866N 400E Winchester, Indiana 47394 Home 765.584.7283 Cell765.546.2592 n9...@arrl.net
Re: [Repeater-Builder] CT Systems 2100 service monitor
John, I have a Wavetec 2100, same as the CT... I bought an operation manual from W7FG vintage manuals, and recently a service manual on CD from Ebaydoing a web search on W7FG and go to their site to find it... Good luck 73 Dave WB2FTX - Original Message - From: John Harrington To: Repeater-Builder@yahoogroups.com Sent: Monday, April 13, 2009 10:28 PM Subject: [Repeater-Builder] CT Systems 2100 service monitor Hi, guys. I need a manual (service and operation, if possible). I'll pay any reasonable price for a repo or original. Yes, I looked on the technical sites already-- no success. Thanks! John W5EME -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.55/2057 - Release Date: 04/13/09 17:56:00 No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.55/2057 - Release Date: 04/13/09 17:56:00
Re: [Repeater-Builder] All Band Repeater - HUMOR
And it has been relisted...you have another shot at it! Dave WB2FTX - Original Message - From: n...@no6b.com To: Repeater-Builder@yahoogroups.com Sent: Sunday, April 12, 2009 3:28 PM Subject: RE: [Repeater-Builder] All Band Repeater - HUMOR At 4/12/2009 11:40, you wrote: Gosh, and it didn't sell! Richard http://www.n7tgb.net/www.n7tgb.net Although he was asking too much, at least he did a good job on the packaging. Bob NO6B -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.53/2054 - Release Date: 04/11/09 10:51:00 No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.53/2054 - Release Date: 04/11/09 10:51:00
Re: [Repeater-Builder] Repeater ID Enforcement
This example seems to be more of an interference issue as opposed to broadcasting but I remember I had the same feeling when I saw the original FCC response. Dave WB2FTX - Original Message - From: Mike Morris WA6ILQ To: Repeater-Builder@yahoogroups.com Sent: Sunday, April 12, 2009 10:25 PM Subject: RE: [Repeater-Builder] Repeater ID Enforcement Is this it ? https://www.arrl.org/news/stories/2002/09/18/100/?nc=1 Mike WA6ILQ At 05:10 PM 04/12/09, you wrote: If my O-O Coordinator can't lay his hands on it, I might do that. I specifically remember the letter because it made me do the 'RCA Victor Dog' thing until I thought about it for a few minutes. I'd just never thought about it before! More than anything, it drives me nuts not being able to find it. (I have a bad case of CDO. That's like OCD only with the letters in the proper order!) 73, Mike WM4B From: Repeater-Builder@yahoogroups.com [ mailto:repeater-buil...@yahoogroups.com] On Behalf Of Mike Morris WA6ILQ Sent: Sunday, April 12, 2009 6:45 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Repeater ID Enforcement At 06:10 AM 04/12/09, you wrote: I know we're not supposed to discuss FCC rules on this forum, so I hope this isn't across the line. I'm trying to find a Rileygram citing a repeater owner because his repeater ID'd at 10-minute intervals without user input (beaconing). Does anybody happen to have a copy or know where it's posted? I've been going through the Amateur Enforcement Actions on the FCC page, but haven't come across it yet. and am hoping not to have to dig too far! 73, Mike WM4B If you are an ARRL member, drop a note to Dan Henderson, N1ND, ARRL Regulatory Information Specialist. He worked with Riley extensively and if anybody outside the FCC has a file cabinet full of FCC notices he will. If you aren't a member, have a friend who is drop a note. Mike -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.54/2055 - Release Date: 04/12/09 13:14:00 No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.54/2055 - Release Date: 04/12/09 13:14:00
[Repeater-Builder] Microwave modem
I am in need of the channel switch configuration for a Granger DTL-7300 channel modem. David Epley, N9CZV Randolph County Emergency Coordinator 4866N 400E Winchester, Indiana 47394 Cell765.546.2592 n9...@arrl.net image001.gif
Re: [Repeater-Builder] Ridiculus
According to ARRL HQ it is an April Fool's joke Dave WB2FTX - Original Message - From: Lee Pennington Sent: Wednesday, April 08, 2009 4:38 PM Subject: [Repeater-Builder] Ridiculus === THIS IS ABSOLUTLY REDICULOUS! Subject: California County Taking Actions To Silence ALL Ham Activity From: www radiobanter com San Luis Obispocounty supervisors took drastic and unprecedented action yesterday by passing an ordinance that would prohibit amateur radio operators, known as hams, from operating their transmitting stations. The measure was put in place to eliminate what officials said were health risks associated with transmitters located close to children. A legal struggle is expected. By a vote of 4 to 1 with one abstention, the governing board of SLO county took action aimed at addressing a recent Stanford University study that showed a correlation between ham radios and attention de ficit disorder and hyperactivity in children, as well as nagging reports of interference caused by radio hams operating their high-powered transmitters in residential neighborhoods. Our primary responsibility is to provide a safe environment for children to live without the dangerous effects of radio waves constantly bombarding them and causing proven neurological and psychological problems, said E. Duane Nyborg, an attorney who represented the county in several court cases in the past year. Hams are not the only culprits, but they are usually in very close proximity to children and are no doubt a major contributor to the health problems we've been seeing. The interference is just the last straw that convinced the county that something had to be done about it. Atascadero city manager Laura Lopez said that she has seen a tenfold increase in the number of complaints of interference from ham radio operators in the last six months. New housing developments which have dramatically increased the population there and placed homes unusually close to each other are the predominant contributing factor. Similar conditions exist in most of the county. We have radio hams getting into toasters, electric pianos, light bulbs, everything, from their powerful transmitters that cause all this static. Many of our citizens can't use basic appliances or watch television because of all the junk that the hams are broadcasting, she tol d the Press-Telegram by telephone. Hams can't say they didn't see this coming. They were warned by the county last year that if they did not submit to a check of their stations by officials, they would have limits imposed on their operation. Few consented to the searches, which most decried as invasive. But nobody expected a total ban on transmissions. This is outrageous. You'd better believe we're going to fight back and win. This is a totalitarian seizure of our rights that is totally illegal and can't stand up, said Frank Wilson, a local ham club president. He said there were no formal plans for an appeal yet but preparations were underway. Wilson claims that a federal preemption of local zoning ordinances, called PRB-1, delineates three rules for local municipalities to follow in accomodating antenna structures such as are used by hams. But Nyborg says that PRB-1 applies to antenna structures only, and not the transmitters used to feed the antennas with a radio signal. We know all about PRB-1. That's why we said nothing about antennas. This law is not about antennas. It goes after the root of the problem, which is the transmitters that put out huge signals that get into the brains of our children and short-circuit them out. Those are the facts, that's what the scientific evidence points to, he said at a news conference called shortly after the county's action. In 2008, a grou p of researchers in the school of Environmental Health and Safety at Stanford published their findings that exposure to ham radio signals for three hours per day increased the risk of hyperactivity and related disorders by 10% in children aged 12 and under. This effect was seen when a typical ham radio was turned on up to ¼ mile away. The San Luis Obispo city office says that up to 11,000 children in that city live that close to a ham radio station. The Stanford study showed that frequencies around 3.5, 7, and 14 Megahertz were the most harmful, but that the danger existed all the way up to 450 Megahertz and above. We know where the hams are, that information is easy to get on the Internet, said former mayor of Paso Robles and current county supervisor Anthony Wu. Most of these guys are running one hundred watts of power, that's an incredible amount of radiation, and you can't block it out. It enters your house, it
[Repeater-Builder] Johnson 242-1000-001 Repeater
I am wanting to change the call sign. Can anyone tell me how you do that?
Re: [Repeater-Builder] UHF Mobile Duplexer Questions
1 How close in frequency to the tuned pair? Normally no, it will only work for the frequencies it is tuned to... Especially with a notch only system like a mobile duplexer, which might only have maybe 40 or 50 dB isolation to start with... You make up the difference by having a 5 MHz difference in the frequencies. 2. You should be concerned with both the SWR between the transmitter and the duplexer and the duplexer and the antenna.. The first is an indication of the band pass characteristics of the duplexer at the frequency in use while the second tells you whether the antenna and feedline is properly matched ...Actually you should be concerned with mismatches betweem the receiver and the duplexer for the same reason but you need a diffferent way to evaluate that. 3. Ideally you should use the best tranmission line you can afford between the duplexer and the antenna... RG 58 is very lossy at UHF...There are less lossy feedlines of similar small size since concealment is one of your issues, and these would probably not be a major issue for a 5 meter length Also remember that the lines coming from both the transmitter and the receiver should be double shielded to minimize desense... I normally use RG-142... In your case maybe a short run of RG-142 double shielded coax from the duplexer to the antenna might be appropriate, but I'll leave that end of the discussion to someone else who might have a different or bettter idea. Good luck Dave WB2FTX - Original Message - From: tait700 To: Repeater-Builder@yahoogroups.com Sent: Saturday, April 04, 2009 10:12 AM Subject: [Repeater-Builder] UHF Mobile Duplexer Questions Hello, I am new to Repeater Building and was wondering if someone Knowledgeable would be able to answer Three Questions for me ? 1, With a Duplexer tuned to say 467.00 Low side and 477.00 high side will the duplexer only function at those Frequencies, i.e if the system has another pair of Tx / Rx frequencies that are close to the tuned pair is the duplexer able to handle both sets or only the ones that is is specially tuned for ? 2. When the system is completed and the final vswr readings are being taken is the vswr meter inserted between the Duplexer and the Antenna or between the Duplexer and the Tx radio ? I understand that when checking the vswr on a normal conventional radio / antenna system the reading is taken on both the highest and lowest Tx frequency, and any adjustments made to give the best result at the centre of the two. Is the procedure the same for a duplexer with the checking frequency being the midle of the Tx / Rx seperation ? 3. Could someone possibly indicate how much signal loss i could reasonably expect with the insertion of the Duplexer to the system. I have a very short cable run from the Duplexer to the single antenna 5M and am running RG58U/C. I realize i should be running Hardline to minimize signal loss but we have very strict building codes here which prohibit any type extended vertical antennas and i have had to conceal its location requiring a convoluted path for the feedline to the antenna. Sorry for the longwinded post, i would be very grateful for any and all info people could provide on the above. Thank you for your help, Regards, Tait 700 -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.41/2040 - Release Date: 04/03/09 17:54:00 No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.41/2040 - Release Date: 04/03/09 17:54:00
Re: [Repeater-Builder] UHF Mobile Duplexer Questions
Oh yes, I didn't answer your last question Typically 1.3 to 1.5 dB loss in a four cavity duplexer, possibly up to 2 db or slightly higher for a siz cavity system. - Original Message - From: tait700 To: Repeater-Builder@yahoogroups.com Sent: Saturday, April 04, 2009 10:12 AM Subject: [Repeater-Builder] UHF Mobile Duplexer Questions Hello, I am new to Repeater Building and was wondering if someone Knowledgeable would be able to answer Three Questions for me ? 1, With a Duplexer tuned to say 467.00 Low side and 477.00 high side will the duplexer only function at those Frequencies, i.e if the system has another pair of Tx / Rx frequencies that are close to the tuned pair is the duplexer able to handle both sets or only the ones that is is specially tuned for ? 2. When the system is completed and the final vswr readings are being taken is the vswr meter inserted between the Duplexer and the Antenna or between the Duplexer and the Tx radio ? I understand that when checking the vswr on a normal conventional radio / antenna system the reading is taken on both the highest and lowest Tx frequency, and any adjustments made to give the best result at the centre of the two. Is the procedure the same for a duplexer with the checking frequency being the midle of the Tx / Rx seperation ? 3. Could someone possibly indicate how much signal loss i could reasonably expect with the insertion of the Duplexer to the system. I have a very short cable run from the Duplexer to the single antenna 5M and am running RG58U/C. I realize i should be running Hardline to minimize signal loss but we have very strict building codes here which prohibit any type extended vertical antennas and i have had to conceal its location requiring a convoluted path for the feedline to the antenna. Sorry for the longwinded post, i would be very grateful for any and all info people could provide on the above. Thank you for your help, Regards, Tait 700 -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.41/2040 - Release Date: 04/03/09 17:54:00 No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.41/2040 - Release Date: 04/03/09 17:54:00
Re: [Repeater-Builder] More on the Q2330 Duplexer
With all of this discussion, is either the Q202 or its cousins or the new Q2330 all with now 80 dB of isolation good enough for a 2 meter repeater with a 0.6 MHz split? Putting a new machine on the air and need to know if I should go with a 6 cavity duplexer to give me the 100 or so dB isolation, and albeit the higher insertion loss or can I stay with a 4 can duplexer with typically 85 dB isolation and 1.5 dB insertion loss? In a quandry... most of my experience is with a Sinclair hybrid ring duplexer which seems to work fine at a 25 watt level. 73 Dave WB2FTX - Original Message - From: John J. Riddell To: Repeater-Builder@yahoogroups.com Sent: Wednesday, March 25, 2009 7:41 PM Subject: [Repeater-Builder] More on the Q2330 Duplexer After checking the Sinclair Web site, I see that they have lowered the Tx - Rx isolation on the Q 2330 duplexer to 85 Db. The original literature that I had claimed 100 Db. 73 John VE3AMZ -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.29/2023 - Release Date: 03/25/09 18:54:00 No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00
RE: [Repeater-Builder] supply
I have seen that supply on Micor repeaters. David Epley, N9CZV Randolph County Emergency Coordinator 4866N 400E Winchester, Indiana 47394 Home 765.584.7283 Cell765.546.2592 n9...@arrl.net
RE: [Repeater-Builder] Re:Kenwood TKR 820
It Depends which model you have. I have all the 450 to 470 models which easily go down to 440. just readjust vco voltage for your freq and realign the front end. they all pull down to .25uv for 12db sinaid sensitivity. If you got one of the 470 to 512 models, you have to change some components in the front end but it can be done. David E. Kreifels Amateur Radio Operator - KA0JON Haysville,Kansas -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com]on Behalf Of Travis Graham Sent: Tuesday, March 17, 2009 7:43 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re:Kenwood TKR 820 Some TKR-820 repeaters will not tune into the ham band. I sent one in to be tuned in the ham band, it's still here in the box, to Kenwood East for a complete alignment and tuning. Kenwood East could NOT get the unit to tune into the ham band and remain stable. They did test the unit further and could make it play well just at 450 but not below. The repeater was then programmed for GMRS, perfect. Met and exceeded all factory specs. I know some will tune as low as 441, and at least a handful of units we've had won't tune into the ham bands. Maybe we don't have the right alignment data and we are not Kenwood experts but after the shop couldn't get the one tuned, it didn't seem worth fighting with the units further. Travis AA9NV
RE: [Repeater-Builder] Today's funny two-way radio story (March 09).The Siren - PA Speaker War
Interesting story. I work as a patrol deputy for the local sheriff's office and we normally test the lights and siren before going on patrol (won't give us take home vehicles). Our parking area is below the building and a few months ago we got word from the Sheriff that the testing of the sirens must be done away from the office. Seems the sound was getting to the administration area of the building and we were disturbing their afternoon nap LOL. David -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Rick Szajkowski Sent: Saturday, March 07, 2009 12:51 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Today's funny two-way radio story (March 09).The Siren - PA Speaker War Thanks Skipp needed a chuckle ! On Sat, Mar 7, 2009 at 11:39 AM, skipp025 skipp...@yahoo. mailto:skipp...@yahoo.com com wrote: Re: Today's funny two-way radio story (March 09). The Siren - PA Speaker War Today's very funny story was told to me by a friend after my seeing the evidence in a shop. A service call to fix the Siren on a Public Safety Vehicle with reported problematic volume level. Most radio type service people have a test method or routine to find the failed speaker, pa amplifier, broken wire or blown fuse. Lots of output voltage to the vehicle front mounted speaker, the type of which are sometimes problematic from weather/water damage. Off to the front bumper... Can't seem to get the speaker cone off... normally a tight but not a frozen screw-on fit. Out come the serious tools to break the speaker cone free. So... after a lot of work the cone comes off and there's a permanent thread locking glue on the cone threads. Hummm...? Wait! there's foam and a rubber plug inside the cone..? Someone wanted to reduce the speaker output level and lock it in place? Care to guess what's going on..? Well Sailors... A bit of detective work to figure out the owner of the vehicle has/had a habit of testing his full volume PA Siren functions very early every morning, while pulling out of his house/drive way. One of his nearby neighbors didn't appreciate the everyday wake up call and finally did the foam/rubber plug muffle trick and mounting thread lock to the bumper mounted siren speaker cone. Life goes on... Epilog: I/we do use the rubber plug and foam trick to reduce PA - Siren Volume levels while testing equipment. Helps on hearing and annoyance levels. Your results will probably vary... cheers, s.
[Repeater-Builder] Kenwood TKR-820 Repeater Programming
Just bought a Kenwood TK820 UHF repeater... Any suggestions on how to get it programmed for the ham 440 band? Local resources in Northern NJ. Program it myself? How do I go about doing this? Dave WB2FTX
RE: [Repeater-Builder] Audio Intelligence Devices BXR-2200A Briefcase Repeater
Thanks to all who responded. Now, someone else has the nice aluminum case, He seemed pretty happy about it. So much for learning the hard way, It wasn't very painful at all. Thanks Again, David KD4NUE -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Milt Sent: Friday, February 20, 2009 11:46 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Audio Intelligence Devices BXR-2200A Briefcase Repeater I believe that you now have a nice Haliburton aluminum briefcase. Perhaps a DC power supply. The duplexer might be usable as some sort of filter for reception in the high VHF range Unless you are licensed for something in the high section of VHF the rest is just a pile of parts. Of course you can spend a lot of time finding that out the hard way. Milt N3LTQ - Original Message - From: David Little dalit...@bellsouth. mailto:dalite01%40bellsouth.net net To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Sent: Thursday, February 19, 2009 10:21 AM Subject: [Repeater-Builder] Audio Intelligence Devices BXR-2200A Briefcase Repeater I am looking for any info on an Audio Intelligence Devices (AID) BXR- 2200A briefcase repeater Anyone here have any experience with this, or a pointer on where to look on the web for info? It is a 3 channel, 4 mode setup that operates at 2 and 6 watts with a carrier time-out option for modes 3 (2 watts) and 4 (6 watts). Modes 1 and 2 are the same power without the timeout. The unit is in a Zero Centurion Haliburton aluminum briefcase, operates from internal AC Supply, or external DC source (which both charge the internal Gel Cells when connected) It uses Phelps Dodge duplexers; model number unknown I got it with the intentions of trying it on 2m(600KHz split), MARS or CAP (4 to 5 MHz split) 143 / 148. Any Info appreciated, David KD4NUE Here is a rundown on basic info from looking at the unit. Can send pics (inside and out) if it will help. *** BXR-2200A SERIAL NO 11xx Audio Intelligence Devices Ft. Lauderdale, Florida Gell Cell GC1260 12 Volt 6 Amp (2 pieces) Channel Frequencies: T1 173.8875 T3 R1 165.2875 R2 165.9125 R3 RX Crystal Info: 71.9437 Channel 1 165.2875 (X2+21.4=165.2874) 72.2562 Channel 2 165.9125 (X2+21.4=165.9124) TX 19.3208 Channel 1 173.8875 (X9=173.8872) PA: MHW602 Motorola Brick VHF PA power module Zo OHMS - 50 DC Volts 12.5 BW MHz 146-174 Max BW 140 - 180 P Out Min W 20 P In mW 175 Bias Class C Case 297-02 Frequency Search Yields: Alcohol, Tobacco Firearms 165.2875 r/s Operations (primary) 166.5375 r/s Operations 165.9125 s Unit to Unit 173.8875 s Unit to Unit Yahoo! Groups Links
