[Repeater-Builder] WTT: BayTech RPC-4 serial remote power manager
Check here for details. http://datacenterresources.com/details_power.asp?prodID=RPC4A-20NC This would save someone a trip to the repeater site. I wonder if a connected packet TNC and radio could be used to talk to it? Trades considered are small footprint TNCs (KPC3 or PicoPacket size) or small repeater controller with voice output. This has a slightly bend rack mount tab but will still mount fine. I'll include rack mount 33.6 modem if wanted. Write off list please. K4RJJ at Comcast. dot net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] WTT: BayTech RPC-4 serial remote power manager
Slight correction to description. This model in the link is a 20 amp model. Mine is listed as 15 amp. Ronny Julian wrote: Check here for details. http://datacenterresources.com/details_power.asp?prodID=RPC4A-20NC This would save someone a trip to the repeater site. I wonder if a connected packet TNC and radio could be used to talk to it? Trades considered are small footprint TNCs (KPC3 or PicoPacket size) or small repeater controller with voice output. This has a slightly bend rack mount tab but will still mount fine. I'll include rack mount 33.6 modem if wanted. Write off list please. K4RJJ at Comcast. dot net Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Connecting a repeater to a PBX
Geez, the lowest common denominator I was referring to was intelligence, not radio service. Many of the responses I got off list were bashing me for allowing a ham repeater to be allowed public access via the PBX. Something that I never stated. I got some lovely hate comments to my initial post were hey stupid, how are you going to stop Joe Unlicensed from bootlegging on your repeater. The FCC is going to love you, jerk types of replies. I didn't know ham radio suffered from a low level of self esteem to automatically assume the worst possible connotation in someone's comments. I was told that this was a better list to ask my question than the LMR list because there was a better level of expertise here. Instead, I get abused by list members who assume ham radio is the center of the universe. Enough about this. Thread closed, I'm done. I did appreciate the very few civil and informative responses to my inquiries. First off, this list is comprised of mostly ham oriented repeater people. There are likely more ham repeaters on the air then commercial, and even many commercial folks have their ham license, so *when you don't state your intentions* this list will likely assume you are a ham trying something out of the ordinary. Don't bash the list members because your lack of information was insufficient for them to tell what you were trying to do. Maybe next time be a bit clearer in your description and folks won't have to assume so much? Kevin Custer List Owner Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Connecting a repeater to a PBX
Kevin and group: Well, FWIW, there's a 2 m ham rptr where I used to work and its autopatch is connected to a company telephone extension. Users can dial the UP code for the patch, then use their DTMF pad to dial a call just as if they were using their company desk phone. The interesting thing is that we never had an instance of abusing the patch by making business calls on it...not even a "Hi, I'm gonna be late to work" call. I've always fond hams to be a mutually helpful bunch and, in general, very dedicated to keeping their operations legal. And, yes, I'm a ham, too...and I make my living working on communications systems...mainly military SATCOM stuff and ham radio has often come up with creative help in resolving problems. I, for one, apologize to the writer who got flamed here. 73, Dick - Original Message - From: Kevin Custer To: Repeater-Builder@yahoogroups.com Sent: 10 April, 2006 04:18 Subject: Re: [Repeater-Builder] Connecting a repeater to a PBX Geez, the lowest common denominator I was referring to was intelligence, not radio service. Many of the responses I got off list were bashing me for allowing a ham repeater to be allowed "public access" via the PBX. Something that I never stated. I got some lovely hate comments to my initial post were "hey stupid, how are you going to stop Joe Unlicensed from bootlegging on your repeater. The FCC is going to love you, jerk" types of replies. I didn't know ham radio suffered from a low level of self esteem to automatically assume the worst possible connotation in someone's comments. I was told that this was a better list to ask my question than the LMR list because there was a better level of expertise here. Instead, I get abused by list members who assume ham radio is the center of the universe. Enough about this. Thread closed, I'm done. I did appreciate the very few civil and informative responses to my inquiries.First off, this list is comprised of mostly ham oriented repeater people. There are likely more ham repeaters on the air then commercial, and even many commercial folks have their ham license, so *when you don't state your intentions* this list will likely assume you are a ham trying something out of the ordinary.Don't bash the list members because your lack of information was insufficient for them to tell what you were trying to do.Maybe next time be a bit clearer in your description and folks won't have to assume so much?Kevin CusterList Owner YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Repeater-Builder] Hi Pro Repeater
Hi Group I have a EV1 Transmitter with a PAV-1 Amplifier And a Hi Pro R4V Reciever mounted in Housings. Can anyone help me with the Interface to my controller. I have the following pins Transmitter DB9 PIN 1 Audio in (J3) PIN 2 PITT (J1a) J1 is hooked to constant 12+source along with the amp circit PIN 6-7-8-9 Ground The transmitter has a Norcomm NC104 Installed Reciever DB-15 PIN 1 COR (HOOKED TO G) PIN 2-10 SPK (HOOKED TO C) PIN 5-6-7-8 12v + PIN 12-13-14-15 Ground There is a 1/8 plug tied to (M) To hook a limiter meter to. The Controller is a ICS Linker IIa Its connections is PIN 1 GND PIN 2 V+OUT 100 ma (0.1a) Max PIN 3 TX PITT Output (Open Collector) PIN 4 Aux 1/FAN/TIMED OUTPUT (Open Collector) PIN 5 TX Audio Output PIN 6 RX 1 Audio Input PIN 7 NC PIN 8 RX 1 COS Input RX 1 CTCSS INPUT The Reciever is set to active Low. Any help would be great Randy Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Weird Kerchuking Problem
Jay Urish wrote: Change your PL for a few days.. See what happens. Scott wrote: Here's the problem... Every so often (several times in 10 minutes) we are getting a key up of our repeater. Here is what we know... There is no signal coming in on the input frequency. No even a small spike. It is almost like something in the set up is timing and keying, but it is not an exact interval. Doesn't matter is RX tone is enabled in the CAT or not. Here is the setup... Motorola Mitrek trunk mount on 443.275, CAT 250 controller, Com-Spec TS64DS tone board. It has a good 300W 3 can duplexer that is tuned correctly and working well. 75Amp power supply. The cabinet also has an APRS rig in it, as well as a remote receiver for another repeater, and a link radio, but NONE of that is even turned on (and doesn't make a difference when it is). Suggestions as to what to look for...? Make sure you are using COS *AND* PL. The decoder may be falsing on random noise. -- Jim Barbour WD8CHL Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] nz9e audio preamp compressor circuit
One of you was nice enough to email me the NZ9E Audio Compressor Preamp diagram/text last year. Of course I can't find it and someone's asking me for it again. Would one of you please email the article to me again? Thank you skipp skipp025 at yahoo.com Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Aviation Problem Returns, Need Some Help, or a Tuned Stub
I think I'm the guy about the filter, and the offer stands, but I agree, you need to see where in the chain it's being generated. BTW: Since I was up there last, I took our old maggiore TX off the air, and it was similar to yours, slightest adjustment makes it a comb generator. Also, the club 220 machine is sititng on my bench, and it behaves the same way. Good job on migrating away from those things. YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] Aviation Problem Returns, Need Some Help, or a Tuned Stub
David, the "Fix" for a Maggiore repeater working in to a duplexer becoming a "comb generator" is to put a small antenna tuner between the TX and the duplexer. We fixed a problem here by doing that. The "Z" matcher that was discussed on here while back would work as well. 73 John VE3AMZ - Original Message - From: david vanhorn To: Repeater-Builder@yahoogroups.com Sent: Monday, April 10, 2006 1:19 PM Subject: Re: [Repeater-Builder] Aviation Problem Returns, Need Some Help, or a Tuned Stub I think I'm the guy about the filter, and the offer stands, but I agree, you need to see where in the chain it's being generated. BTW: Since I was up there last, I took our old maggiore TX off the air, and it was similar to yours, slightest adjustment makes it a comb generator. Also, the club 220 machine is sititng on my bench, and it behaves the same way. Good job on migrating away from those things. YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
RE: [Repeater-Builder] maggiore hi-pro rv4 220 squelch problem
It really is kind of funny... ;-) mikey -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Mike Morris Sent: Sunday, April 09, 2006 1:00 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] maggiore hi-pro rv4 220 squelch problem At 09:09 PM 04/08/06, you wrote: Mike Morris wrote: not familiar with the Maggot squelch circuit) the squelch pot Maggot squelch circuit? Freudian slip, Mike? LOL! Nate WY0X Eudora Ver 7 spell checker changed Maggiore to Maggot !!! Try it yourself !!! ROTFL Mike Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] DB411 or DB413 450-470 MHz for 440 ham repeater service?
Hi, I would like to know if anyone have had any luck with using a Decibel DB411 4-bay or DB413 8-bay dipole antenna for 440 MHz service? What is the SWR around 443? If the SWR is still below 1.5 @ 443 MHz then I can try to order the 450-470 split antenna. I tried to order a DB411 or DB413 cut for the 440-450 MHz split from Cook Towers last week but I was told by Kathy they are no longer able to get them cut those frequencies from ANDREW. My TX is on 448.xxx and RX is 443.xxx Thank you for any help. Ken Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Hi Pro Repeater
Randy [EMAIL PROTECTED] wrote: Hi Group I have a EV1 Transmitter with a PAV-1 Amplifier And a Hi Pro R4V Reciever mounted in Housings. Can anyone help me with the Interface to my controller. I have the following pins Transmitter DB9 The Controller is a ICS Linker IIa PIN 1 Audio in (J3) --- PIN 5 TX Audio Output PIN 2 PITT (J1a) J1 --- PIN 3 TX PITT Output (Open Collector) is hooked to constant 12+source along w/ the amp circit PIN 6-7-8-9 Ground--- PIN 1 GND The transmitter has a Norcomm NC104 Installed Reciever DB-15 PIN 1 COR (HOOKED TO G)PIN 8 RX 1 COS Input PIN 2-10 SPK (HOOKED TO C)-PIN 6 RX 1 Audio Input PIN 5-6-7-8 12v + PIN 12-13-14-15 Ground There is a 1/8 plug tied to (M) To hook a limiter meter to. The Controller is a ICS Linker IIa Its connections is PIN 2 V+OUT 100 ma (0.1a) Max PIN 4 Aux 1/FAN/TIMED OUTPUT (Open Collector) PIN 7 NC RX 1 CTCSS INPUT The Receiver is set to active Low. Any help would be great Randy Randy, Here is how we have ours working. TX PTT should only go active with when ICS pin 3 is active. On ours, I added a 12v relay, which puts 12v on the TX, when CTLR PTT is low. Amp. circuit is always ON. I also added a manual on-off switch, for the PTT on the front to have a manual PTT switch. RCVR COS - I had to add a transistor switch to provide a low to our CTLR COS. The RCVR didn’t go low enough, to tell the CTLR that the RCVR was active. 12 power - Have a power switch for the Hipro and/or the ICS CTLR. Antenna - One for each TX RX or to your duplexer with an antenna. Aloha, Jim Connell http://www.qsl.net/earc/ __ Switch to Netscape Internet Service. As low as $9.95 a month -- Sign up today at http://isp.netscape.com/register Netscape. Just the Net You Need. New! Netscape Toolbar for Internet Explorer Search from anywhere on the Web and block those annoying pop-ups. Download now at http://channels.netscape.com/ns/search/install.jsp Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] down tilt
Thanks Kevin-you are right---my noticed downtilt meant to say noticed uptilt as the terraine inland from this site increased in HASL . Thanks again Kevin Regards Bradley Glen --- Kevin Custer [EMAIL PROTECTED] wrote: Hold on there Bradley... An antenna that is built for a higher frequency than what you are inputting will exhibit downtilt in its original orientation. Kevin bradley glen wrote: Hi All I agree with Kevin and have used this in the commercial field where the anteena was originallt cut higher than was to be used. I mounted the antenna upside-down and had good results-with some noticed downtilt which was good for the application .On the same token keep in mind that most of the efficiency of the collinear design lies at the first radiating element - reduced radiation as one extends to the end of the antenna. Good luck Regards Bradley glen zs5swt /zs5wt --- Chuck Kelsey [EMAIL PROTECTED] wrote: Thanks for saving me all the typing ;-) Chuck WB2EDV Kevin Custer wrote: I think what Chuck was getting at was the 'automatic' beamtilt of a vertical omni collinear (usually fiberglass) when it is run outside of its specified bandwidth. As a function of the element length in a coaxial collinear as compared to the applied frequency, the vertical beam pattern will change with applied frequency. If a coaxial collinear is fed with a signal that is exactly on its design frequency, the vertical beam pattern will be centered about the antenna, and the antenna will be at its highest radiating efficiency. If a coaxial collinear is fed with a signal that is 2% lower than its design, the antenna will exhibit a vertical beam downtilt of approximately 3 degrees and suffer approximately 10% loss in overall gain. If a signal that is 2% higher than the antenna design is fed into a coaxial collinear, vertical beam uptilt of approximately 3 degrees will occur, and again a loss of overall gain. These instances are not the case with binary or corporate fed dipole arrays, as the phasing harness predominantly controls the vertical beam pattern. Beam Tilt and efficiency doesn't change very much with applied frequency, and is one reason that the exposed dipole array is a better choice where wide band operation is required. Kevin Custer skipp025 wrote: Kind of loaded question/statement/answer really. All antennas have both horizontal and vertical beamwidth. Depending on what you think is beam-tilt... one could and some do say all antennas have a beam tilt and or a beam width. Others combine the description... In the more commercial world of antennas, we now see vertical omni repeater site antennas with adjustable beam tilt. But I'm not sure if I'd say they have to be made with fiberglass radomes (covers). There's more than one method used by the various mfgrs to adjust the beam tilt - beam width. For the most part we only see some models with adjustable setting in some vertical omni models with composite radomes. ... and you pay serious money for the adjustable beam tilt models. If you pay attention to the specs, you'll see values for the horizontal, vertitcal beam width and where needed, the/any adjustable beam tilt values. Your results will probably vary... === message truncated === __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Aviation Problem Returns, Need Some Help, or a Tuned Stub
--- In Repeater-Builder@yahoogroups.com, John J. Riddell [EMAIL PROTECTED] wrote: David, the Fix for a Maggiore repeater working in to a duplexer becoming a comb generator is to put a small antenna tuner between the TX and the duplexer. We fixed a problem here by doing that. Tuning the transmitter fixes, filters mask. Unfortunately without a spectrum analyzer, you'll never know it's in comb mode. I've done this on three systems, two VHF and one 220, and they all act about the same. Tune the TX for max output, and you'll end up on or very near comb mode. Tune with an SA, and you can see the comb mode go away, as well as another mode with lots of noise within +/- 100 khz of the carrier go away, while getting to the same output power. The Z matcher that was discussed on here while back would work as well. Possibly, it also acts as a filter to some extent. The problems I am seeing are in the multiplier chain and many stages isolate them from the output, so I doubt they are sensitive to load impedance. There may also be spurs that you can get from the finals too, NOTHING would surprise me in these things. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: maggiore hi-pro rv4 220 squelch problem
A quickie on how the maggiore squelch circuit works. (when/if it decides to.) The five transistor chip is the heart of it, but not all of it. The first transistor is just a linear amplifier. The second is biased class C, and interacts a bit with the third. The third is a little interesting, I'll come back to it. The fourth provides COR output, which is faster than the audio mute. The fifth mutes the speaker locally with a short RC delay, and also feeds through the third to provide some hysteresis. But it's more fun than that! The circuit's performance is very sensitive to the IF bandwidth! On this 220 machine I'm looking at, I can get .170uV 12db sinad, but if I tune it to that, the squelch won't ever close. If I tune to about .2uV, then I can get the squelch to close at about .16 I have a 2M machine here to play with also, and it behaves the same although I would have called it a working machine as it's squelch actually closes somewhere nearer to optimum IF tuning. The interesting thing is that the second transistor being class c derives it's bias from the noise signal ampilitude. If you don't have enough noise getting in (small cap values in the base caps?) then you can't bias this transistor on. The third transistor pulls base bias away if the audio squelch (NOT THE COR!) is active. And a final thank you should go to the psychotic weasel who drew the schematic in such a manner as to preserve neither the functionality of the circuit, or the pinout of the chip.. I get offended by schematics that preserve the chip pinout and sacrifice meaning, but this one managed to sacrifice both of them in order to gain an artful wad of electric spaghetti. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Sinclair Q-201G duplexer
--- In Repeater-Builder@yahoogroups.com, Ken Arck [EMAIL PROTECTED] wrote: Hi folks I know the stock answer, but I'm looking for the non-stock one :- ) (and yes, I've read the manual!). But I was wondering (and checking my rationale here). in many Bp/Br cavities, the notch tuning actually tunes to a certain freq above or below the pass-tuned frequency. It's not proportional exactly. Moving the pass 1.00 MHz dosen't necessarily move the notch 1.00 MHz So, any time you change the pass, you have to readjust the notch, but you can move the notch without moving the pass. At least I can't see any effect with reasonable numbers. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Aviation Problem Returns, Need Some Help, or a Tuned Stub
Dave, we did use a Spec Analyzer. to find this problem. Good luck 73 John VE3AMZ - Original Message - From: Dave VanHorn [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, April 10, 2006 5:13 PM Subject: [Repeater-Builder] Re: Aviation Problem Returns, Need Some Help, or a Tuned Stub --- In Repeater-Builder@yahoogroups.com, John J. Riddell [EMAIL PROTECTED] wrote: David, the Fix for a Maggiore repeater working in to a duplexer becoming a comb generator is to put a small antenna tuner between the TX and the duplexer. We fixed a problem here by doing that. Tuning the transmitter fixes, filters mask. Unfortunately without a spectrum analyzer, you'll never know it's in comb mode. I've done this on three systems, two VHF and one 220, and they all act about the same. Tune the TX for max output, and you'll end up on or very near comb mode. Tune with an SA, and you can see the comb mode go away, as well as another mode with lots of noise within +/- 100 khz of the carrier go away, while getting to the same output power. The Z matcher that was discussed on here while back would work as well. Possibly, it also acts as a filter to some extent. The problems I am seeing are in the multiplier chain and many stages isolate them from the output, so I doubt they are sensitive to load impedance. There may also be spurs that you can get from the finals too, NOTHING would surprise me in these things. Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Connecting a repeater to a PBX
NonProfit Radio wrote: I didn't know ham radio suffered from a low level of self esteem to automatically assume the worst possible connotation in someone's comments. I was told that this was a better list to ask my question than the LMR list because there was a better level of expertise here. Instead, I get abused by list members who assume ham radio is the center of the universe. Heh, not a self-esteem problem -- we've just seen our repeater users try ANYTHING they can get away with! (And other ham repeater owners/operators too.) It is the experimental radio service, after all...! :-) Don't go away angry...! No one meant anything bad by the good-natured ribbing... We're a friendly bunch, we just bristle at we've seen that problem before... too many times... types of topics. Nate WY0X Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Mountain Lion to Owl Mouse Patrol
Remember the Mountain Lion stories a month or two back? I wouldn't have believed the following story if I hadn't seen it myself. This months story comes from the same area as the mountain lion event... Out in the middle of the forest road on the way up to the remote repeater site... The Forestry folks strap a live mouse to the end of a very long wood pole and hold it up into the air while making Owl noises. The local male owl swoops in and grabs the mouse off the pole thinking the Owl noises are from a non resident male owl cutting in on his action. The Forestry folks watch to see if the owl takes the mouse home to a nest or eats it in a nearby location, which tells them a lot about the condition of the forest. Go figure... cheers, skipp Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Mountain Lion to Owl Mouse Patrol
I wonder where PETA is on this one g Ken At 11:47 PM 4/10/2006 -, you wrote: Remember the Mountain Lion stories a month or two back? I wouldn't have believed the following story if I hadn't seen it myself. This months story comes from the same area as the mountain lion event... Out in the middle of the forest road on the way up to the remote repeater site... The Forestry folks strap a live mouse to the end of a very long wood pole and hold it up into the air while making Owl noises. The local male owl swoops in and grabs the mouse off the pole thinking the Owl noises are from a non resident male owl cutting in on his action. The Forestry folks watch to see if the owl takes the mouse home to a nest or eats it in a nearby location, which tells them a lot about the condition of the forest. Go figure... cheers, skipp Yahoo! Groups Links -- President and CTO - Arcom Communications Makers of the world famous RC210 Repeater Controller and accessories. http://www.ah6le.net/arcom/index.html Authorized Dealers for Kenwood and Telewave and we offer complete repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Hi Pro Repeater
Hi Jim thanks for the reply, Thats the way we had it Hooked up Just thought we would see how others done it. Thanks for the input. Randy Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Aviation Problem Returns, Need Some Help, or a Tuned Stub
At 4/10/2006 02:13 PM, you wrote: Tuning the transmitter fixes, filters mask. Unfortunately without a spectrum analyzer, you'll never know it's in comb mode. I've done this on three systems, two VHF and one 220, and they all act about the same. Tune the TX for max output, and you'll end up on or very near comb mode. Really? Guess I'm spoiled with the Midland 13-509 G.E. radios: both are fairly difficult to make spurious even if you try. A long time ago I spent some time working with an old Standard VHF repeater that was given to me. It seemed to behave as you described your systems: spurious unless tuned just right with a spectrum analyzer. I wrote it off as defective returned it. Bob NO6B Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] DB411 or DB413 450-470 MHz for 440 ham repeater service?
got a friend that has one on 444.3xx and 449.3xx receive and has had no problems. has had it that way for many years and it is on a 150' tower. also I don't think we want to go to Kathy and Cook after last year's story for day on the antenna. A short time ago Tessco had some. Not sure if they still have any. thanks John - Original Message - From: Ken [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, April 10, 2006 2:16 PM Subject: [Repeater-Builder] DB411 or DB413 450-470 MHz for 440 ham repeater service? Hi, I would like to know if anyone have had any luck with using a Decibel DB411 4-bay or DB413 8-bay dipole antenna for 440 MHz service? What is the SWR around 443? If the SWR is still below 1.5 @ 443 MHz then I can try to order the 450-470 split antenna. I tried to order a DB411 or DB413 cut for the 440-450 MHz split from Cook Towers last week but I was told by Kathy they are no longer able to get them cut those frequencies from ANDREW. My TX is on 448.xxx and RX is 443.xxx Thank you for any help. Ken Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] WTT: BayTech RPC-4 serial remote power manager
Already spoken for and headed NE of here in the morning. Thanks Rod! Ronny Julian wrote: Slight correction to description. This model in the link is a 20 amp model. Mine is listed as 15 amp. Ronny Julian wrote: Check here for details. http://datacenterresources.com/details_power.asp?prodID=RPC4A-20NC This would save someone a trip to the repeater site. I wonder if a connected packet TNC and radio could be used to talk to it? Trades considered are small footprint TNCs (KPC3 or PicoPacket size) or small repeater controller with voice output. This has a slightly bend rack mount tab but will still mount fine. I'll include rack mount 33.6 modem if wanted. Write off list please. K4RJJ at Comcast. dot net Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Aviation Problem Returns, Need Some Help, or a Tuned Stub
On 4/10/06, Bob Dengler [EMAIL PROTECTED] wrote: At 4/10/2006 02:13 PM, you wrote:Tuning the transmitter fixes, filters mask.Unfortunately without a spectrum analyzer, you'll never know it's in comb mode.I've done this on three systems, two VHF and one 220,and they all act about the same. Tune the TX for max output, andyou'll end up on or very near comb mode.Really?Guess I'm spoiled with the Midland 13-509 G.E. radios: both arefairly difficult to make spurious even if you try. Yeah, it's not pretty. This is by far the most picky transmitter I've worked on. Most everything else is either right or pretty close to right if you simply tune for max output. On the daniels gear, that IS the tuning procedure, other than watching for peaks in current consumption, but again you can simply tune for max output and you will be clean, just maybe not as efficient as you could be. YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
RE: [Repeater-Builder] Aviation Problem Returns, Need Some Help, or a Tuned Stub
Eric, here is a recap of existance with this problem. It started last July, I received a phone call from the FAA aviation department in Chicago, Illinois. He had explained that a pilot was receiving interference, and that they was able to identify one of the hams on the repeater, got his call, and he turned them to me. At that time his radio was messed up, extremely, so thus he quit using it. Thought the problem was gone, and received another phone call from the aviation department. They were quite nice about it actually. At that time, I looked at the output of the transmitter on a SA, and could see several spurs. Dave Vanhorn came down with his SA and confirmed this as well. At that time, the exciter was a Maggorie Transmitter, that was indeed very spurious. This has since been changed to a micor repeater converted by Kevin. It looks excellent on the SA. The only thing that was changed was that we went from a Diamond dual band antenna to the DB224 antenna at 92'. This antenna was then moved to a 130' tower at the same location, fed with 7/8 Andrew hardline. I had not heard anything from them until the other day, just after I retouted the hardline, and shortened the Andrew 3/8" hardline that goes to the repeater, by about 10'.I hoped onto 132.950 and could indeed hear the repeater getting into that freq. While there was traffic on the repeater, I listened to the aircraft, and could actually hear the interference on their radio, not intellegent, but that there was indeed something there, and that they were stating that they were having the interference. I shut down the repeater, and it went away, as the pilots stated that the interference went away.The only thing I have done at this point, was added a 6' piece of cable to the feedline, and have not heard anything on 132.950 since. My guess is that there is something with this DB224 antenna, and not resonating just right. I know the elements have been changed to 37 1/4" elements, and we had a new harness built, for what it's worth, there was no change in the behavior of the antenna, SWRs was the same, as well as the impedance of the antenna. To long ago now to remember what it actually was, but at 145.410, the SWR is 1.8:1, I will have to check the impedance. As for the ground radios, I was told that they have not received any complaints of interference, just on the planes in the air. The Ham that brought this to our attention was from and Airport about 20 air miles from the repeater.Closest ground that I will be able to get to the cable would be about 30' away, as there is a concrete pad directly under the point where the feedline enters the home.Mathew Eric Lemmon [EMAIL PROTECTED] wrote: Mathew,Please elaborate on the exact nature of the interference. Is the issue oneof the tower receiving your signal, or the planes, or both? Have you goneto the airport to listen to the interference, as it is occurring? Do youhave a recording of the interference? Is the audio clearly intelligible, ora mixture of two or more voices? Does the airport have a remote A/G radioat the same location as your repeater? Keep in mind that aviation radio isAM, so it may be possible to receive your FM signal by slope detection.There are a lot of issues to consider.I don't think a tuning stub is the proper solution, assuming theinterference is due to a spur from your exciter or PA. Put a five-inch orlarger bandpass (not a pass/notch) cavity between your PA and the duplexerPA input. This BP cavity should be after the isolator, if one is installed.Do you have a ferrite isolator following the PA? Try the cavity with 0.5 dBinsertion loss, for starters. Also, check to be certain your feedline isproperly grounded when it enters the shack. It's odd that this problembegan when you changed the makeup and routing of the feedline...73, Eric Lemmon WB6FLY-Original Message-From: Repeater-Builder@yahoogroups.com[mailto:[EMAIL PROTECTED] On Behalf Of n9lvSent: Sunday, April 09, 2006 3:25 PMTo: Repeater-Builder@yahoogroups.comSubject: [Repeater-Builder] Aviation Problem Returns, Need Some Help, or aTuned StubIt appears that my problem with the 145.410 repeater has begun interfering with the aviation frequency again at 132.950. It crept out of no where, and the only change that has taken place with the repeater is that I moved the entry of the feed line, and shortend the jumper that comes inside, which is 3/8" hardline, same as before.Someone back when all this was going on, mentioned they could build me a tuning stub to hopefully make this problem go away. I dont remember whom it was, but if anyone can help, I seriously need some help on this one, as I hate to have to take the repeater off the air. I know it is not the exciter, as it has been changed and is now a micor. Please Help again.MathewN9LVYahoo! Groups LinksYahoo! Groups Links* To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/* To unsubscribe from this group,
Re: [Repeater-Builder] Re: Aviation Problem Returns, Need Some Help, or a Tuned Stub
Dave, I'm beginning to think there could be some improvement in the Maggorie transmitters, I worked with that one again after I took it from service, and never did get it to work right, close, but not like it could or should be. I seen your post on the squelch problem on the 220 system, makes for believers out of us. I truely believe my problem is the result of a bad antenna, well not bad, just not tuned to work the low end of the ham bands. From some of the post I have been reading here, does not seem there has been quality results from the rebuild of DB224 antenna's, at least not enough that makes it worth the troubles. Plans are to just purchase a new antenna and be done with it.Mathew david vanhorn [EMAIL PROTECTED] wrote:On 4/10/06, Bob Dengler [EMAIL PROTECTED] wrote: At 4/10/2006 02:13 PM, you wrote:Tuning the transmitter fixes, filters mask.Unfortunately without a spectrum analyzer, you'll never know it's in comb mode.I've done this on three systems, two VHF and one 220,and they all act about the same. Tune the TX for max output, andyou'll end up on or very near comb mode.Really?Guess I'm spoiled with the Midland 13-509 G.E. radios: both arefairly difficult to make spurious even if you try.Yeah, it's not pretty. This is by far the most "picky" transmitter I've worked on. Most everything else is either right or pretty close to right if you simply tune for max output. On the daniels gear, that IS the tuning procedure, other than watching for peaks in current consumption, but again you can simply tune for max output and you will be clean, just maybe not as efficient as you could be. Yahoo! Messenger with Voice. Make PC-to-Phone Calls to the US (and 30+ countries) for 2¢/min or less. YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Repeater-Builder] DB411 or DB413 450-470 MHz for 440 ham repeater service?
I'm running a DB-411 on 442.75 with less than 1.5:1 VSWR. It was cut for the 450-470 segment. Chuck WB2EDV Ken wrote: Hi, I would like to know if anyone have had any luck with using a Decibel DB411 4-bay or DB413 8-bay dipole antenna for 440 MHz service? What is the SWR around 443? If the SWR is still below 1.5 @ 443 MHz then I can try to order the 450-470 split antenna. I tried to order a DB411 or DB413 cut for the 440-450 MHz split from Cook Towers last week but I was told by Kathy they are no longer able to get them cut those frequencies from ANDREW. My TX is on 448.xxx and RX is 443.xxx Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Re: Aviation Problem Returns, Need Some Help, or a Tuned Stub
Well... Antennas don't create signals. Your antenna may well be interacting with your amp in an odd way. but it's not the antenna that's making the spurs. Can you add more feedline, so that the total length you added to the system is an even multiple of a wavelength? YAHOO! GROUPS LINKS Visit your group "Repeater-Builder" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
