Re: [Repeater-Builder] duplexer tuning question

At 09:58 AM 4/22/2005 -0500, you wrote: > >At 07:22 AM 4/22/2005, Mathew Quaife wrote: >>If these are like my TX/RX duplexers, the slighest movement of the >>tuning rods makes a huge difference, especially on the tx >>side. retune would be a good idea. Take them slow, they are fun to >>tune.

Re: [Repeater-Builder] Re: Looking for alignment data for TPL HMS

At 03:16 PM 4/24/2005 -0700, you wrote: > Of course you know the history of where the name TPL came from > ... don't you? <---Ooooh, I do, I do! (don't forget I worked for the guy for a year or so) Ken -- President an

Re: [Repeater-Builder] Re: Looking for alignment data for TPLHMS

At 03:26 PM 4/24/2005 -0700, you wrote: > > > Oh yes ... you certainly do ... <---Whatever happened to him anyway? I lost track of him a few years after he was CE at the company in Torrance I worked for (this was after he left Pace). Is he even alive these days? Ken --

Re: [Repeater-Builder] TPL (toilet paper line)

At 03:36 PM 4/24/2005 -0700, you wrote: > The TPL line of RF Power Amplifiers came from the initials of > the guy who started TPL Communications 30 some odd years ago, > Thomas P. Litty. <---Actually, wasn't his last name spelled Liddy? > > I think his ham call was K6RAD (Ken, please correct

Re: [Repeater-Builder] TPL (toilet paper line)

> Remember Pace? Vaguely ... think that was the radio that had the > built-in microphonic modulator ... yelling at the radio produced > recoverable audio at the receiver. <---Hahahaa, yep that's the one! Man, you ARE an old fart, aren't ya? But in all fairness, it was only one cheap line t

Re: [Repeater-Builder] Antenna Specialists Antenna

At 08:31 PM 4/24/2005 -0400, you wrote: > Hello All, > I just "tore down" a tower for someone and was given an antenna that > was sitting in their garage, did not get any specs on it. The label is > pretty much disintegrating but it says: Antenna Specialists, Made in > Ohio USA, Model Number ASP

Re: [Repeater-Builder] Re: Antenna

At 09:32 PM 5/1/2005 -, you wrote: >If he's a commertial operator ... ask him what he would have you do >with your antenna (stand with your back to the wall when you ask this) ><;-) maybe he want's to give you the top spot. (Yea sure!) Maybe he >can offer a suggestion. >Co-phasing is usually

Re: [Repeater-Builder] I need to take 5 volts to 8 volts, and one have a schematic

At 04:42 PM 5/3/2005 -0500, you wrote: >At 04:32 PM 5/3/2005, w9mwq wrote: > >The optoisolator would be a component that you would use to convert >logic levels from say 8V or 12V or 3V to 5V or some other voltage, >but you aren't going to move any power through one. <---sounds to me like what he

Re: [Repeater-Builder] I need to take 5 volts to 8 volts, and one have a schematic

At 06:09 PM 5/3/2005 -0500, you wrote: >I'm not sure what it is he's trying to "run" here, but that implies power. <---He's talking about translating the COS output of a V7a (which is an active high of +5 volts) to +8 volts, needed by the voter. The simplest way to do it would be with 2 NPN trans

[Repeater-Builder] Re: I need to take 5 volts to 8 volts, and one have a schematic

At 06:41 PM 5/3/2005 -0500, you wrote: >An opto certainly would get you there, then. >Digikey has some nice ones from Panasonic and NEC with CTR's above >10-0%, so you could doinverting or non-inverting conversion with only >the opto and a pair of resistors. <---Certainly the better engineered

[Repeater-Builder] Re: I need to take 5 volts to 8 volts, and one have a schematic

At 08:53 AM 5/11/2005 -0700, you wrote: First, becuase I have them, they already tone in them <-Be advised that without modification, the packet COS out does NOT track CTCSS in the V7a. In other words, it is always carrier based regardless of CTCSS. Ken

[Repeater-Builder] Re: I need to take 5 volts to 8 volts, and one have a schematic

At 08:53 AM 5/11/2005 -0700, you wrote: By the time I find 4 receivers that match, get 4 xtals, then tone boards, the money would be the same, then only for a year later to find I have a channel issue, then to buy another xtal, just change the vfo and I'm done. I agree, you way sounds better, bu

Re: [Repeater-Builder] I need to take 5 volts to 8 volts, and one have a schematic

At 01:59 PM 5/11/2005 -0400, you wrote: >How did you get a V7 for $200? The G707 goes for $265 or so! <--I was wondering that myself. I know the V7 is discontinued but that's almost half off! Ken Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/gro

[Repeater-Builder] Re: Failing V7A display

At 12:34 PM 5/12/2005 -0500, you wrote: >Kenwood replaced the display on my V7a for free. >I sent it to the east coast repair center, and it came back nice and no charge. <---If you bought the radio new, yep! They'd replace it for free. For those of us who bought one used, we got to pay for a new

Re: [Repeater-Builder] Repeater Desence

>>Has anyone had desence due to the fact that the repeaters antenna is >>too close to the repeater its self? Like 12 feet of vertical >>seperation and 2 feet horizontal? <---No but my father once told me I never used desense I was born with! Ken --

Re: [Repeater-Builder] Dayton!

At 02:43 PM 5/17/2005 -, you wrote: >Who's going, where to meet! <---From what I've gathered from reading posts about it, it seems many folks are going to Dayton and they'll all be easy to spot, as they have thining hair, a pot belly and will have a radio on their belt. Ken (well, at least I

Re: [Repeater-Builder] Fiplex duplexers

At 11:10 AM 5/17/2005 -0700, you wrote: >I'm working on a theroretical design that uses 1 1/4" copper watter >pipe and 3/8" solid copper grounding rod, which should cost approx >$20-$25 per cavity, but I haven't built any thing in the real world >yet. <---Apparently it will only be used in contro

Re: [Repeater-Builder] Dayton!

At 02:50 PM 5/17/2005 -0700, you wrote: > > Yet ...

Re: [Repeater-Builder] Re: Dayton check list

At 12:42 PM 5/18/2005 -0400, you wrote: Every year they try to find a new way to >make money off the vendors or make it more of a pain to them. <---Well, don't forget you're talking about an event held in a city in Ohio. No doubt the "City Fathers" tax the living crap out of everything and do s

Re: [Repeater-Builder] Re: Dayton check list

At 12:56 PM 5/18/2005 -0400, you wrote: >Anyone taking bets on how high the gas prices will mysteriously raise >for the weekend? I'm betting $2.37. Not that it's gouging or anything. <---Only $2.37? That's less than we're paying here in Oregon now! Ken ---

Re: [Repeater-Builder] Want to buy Repeater Controller

At 10:04 PM 5/18/2005 -, you wrote: >Needed features: >- CWID / voice ID (would be sweet, but will settle for CW) >- LINKS to multiple half/full duplex repeaters (maybe control 2 or 3 >repeaters) >- Built-in CTCSS encode/decode >- Remote-programmable >- Macros >- Switch sensors to broadcast al

Re: [Repeater-Builder] SSB Remote Base

At 05:10 AM 5/23/2005 -, you wrote: >I was looking at using a MFJ-9406 6 Meter SSB radio for a 6 meter >remote base at my reapeater site. Any Ideas on how to get a COS/COR >signal out. I thought about using a CAT Tech SQ-1000 Squelch board but >didn't know how it would handle the pulsing nature

Re: [Repeater-Builder] SSB Remote Base

At 09:26 AM 5/23/2005 -0700, you wrote: >Can you direct me to the schematic for the squelch circut? <---Sorry about that! This was a project I did many years ago and haven't looked at for a while (hence the lack of a link to the schematic on the webpage!) http://www.ah6le.net/hfsquelch.bmp Ken

Re: [Repeater-Builder] SSB Remote Base

At 09:47 AM 5/23/2005 -0700, you wrote: > > Motorola made a voice sensitive squelch circuit for the HF Micom > 2-way a number of years ago. In those days, was all separate > components - the diagram is available if you are interested. <---Yep they did! The one I built was patterned after the M

Re: [Repeater-Builder] What would be gained in a duplexer change: Curiosity

At 01:57 AM 5/26/2005 -, you wrote: Currently I have a 6 cavity TX/RX duplexer system, which has 2.2 >dB of isolation. The system is running 125 watts into the duplexer, >getting just somewhat under 90 watts out.

Re: [Repeater-Builder] Repeater Controller

At 03:36 PM 6/1/2005 -, you wrote: >What is the repeater controller of choice these days >We have IRLP & Echolink on the repeater also >Right now it is VHF only however down the line we might want to add UHF >I would be interested in your suggestions <---May I suggest ours? http://www.ah6le.n

[Repeater-Builder] Mitrek PL Deck

We're talking an HLN-4020A, dual reed type. Either I missed it or it can't be done but is there any way to full duplex the thing? The reedless 4181 deck does it but not the dual reed one? Ken -- President and CTO -

Re: [Repeater-Builder] Various Cooling Methods

At 12:49 PM 6/3/2005 -0700, you wrote: >The first thing that comes to mind is how to dealing with the >condensation created during the heating and cooling of the refridgerant.

Re: [Repeater-Builder] Mitrek PL Deck

At 05:47 PM 6/3/2005 -0700, you wrote: Have tried with the dual reed board, it can't, <---Thanks, I was afraid of that. No biggie, this is just a backup radio I was getting ready anyway... Ken -- President and CTO

Re: [Repeater-Builder] formula for DB -Power

At 11:22 AM 6/6/2005 -0500, you wrote: >well for some reason i just can not think of this. or im getting to old >,,hehe > >what is the formula for DB ( power )? <---Here's a link: https://ewhdbks.mugu.navy.mil/decibel.htm Ken -

Re: [Repeater-Builder] Micor squelch chip vs other options (detection time)

At 05:27 PM 6/7/2005 -, you wrote: >Some of after-market audio squelch boards have >small uP's on board. I'm not seeing a lot of stated >time values on their respective data sheets/manuals. <---Our currently in development RC810 controller has on-board multilevel squelch per port. The beau

Re: [Repeater-Builder] 1st Bessell null and a thanks for the Q info

At 01:35 PM 6/7/2005 -0500, you wrote: >At what modulation index will the 1st Bessell null occur? <-2.405 What do I win? :-) Ken -- President and CTO - Arcom Communications Makers of state-of-the-art repeater contro

[Repeater-Builder] Re: WEATHER RELATED STATIC

At 07:34 PM 6/8/2005 -0500, you wrote: >This would help in the case of an approaching thunderstorm, where the >charged leaders are beginning to form. <---You could always just have a beer. Then 30 minutes later, you'd have a Corona "discharge"! Ken --

Re: [Repeater-Builder] Fw: TPL Amplifier

At 06:14 PM 6/8/2005 -0700, you wrote: >There is a fuse on it. I don't have the book handy and can't remember >the exact size. <---An educated guess for a 100 watt out UHF amp would be a 25 amp fuse... Ken -- President a

Re: [Repeater-Builder] TKR-850 PL on COS

At 08:44 PM 6/8/2005 -0700, you wrote: Look in the software :optional features,AUX inputs; there is Aux In pins that you program diferent actions, program one for QT/DQT encode enable/disable and control it with one of the output lines of the RLC-3 <---Sorry but that won't work. Kenwood's

Re: [Repeater-Builder] TKR-850 PL on COS

At 07:21 AM 6/9/2005 -0400, you wrote: >The pin is TOR or tone on receive. (pin-24)

Re: [Repeater-Builder] Re: TKR-850 PL on COS

At 04:05 PM 6/9/2005 -, you wrote: >If there was enough demand for said function, I can >and would pass it on to the software guys back at >Kenwood. They do pay attention to valid feedback. <---Let's talk about Kenwood's lack of response to the TKR's deemphasis curve being wrong then. I k

Re: [Repeater-Builder] Re: TKR-850 PL on COS

At 10:56 PM 6/9/2005 -, you wrote: >Email me the specific problem, how you measured it >and how you think the response should be. I'll get >the reply back to the proper engineering people >and find out what they have to say about it. <--The specific issue, as I've experienced it, is as fo

Re: [Repeater-Builder] Re: TKR-850 PL on COS

be made with >the external ptt function active. > >To be honest, the application is semi non conventional >for the majority of the people using the repeater. But >it's not something unreasonable to ask about. > >Verify my assumption and I'll get on the phone to >t

Re: [Repeater-Builder] Re:coax notch

At 04:35 PM 6/12/2005 -0700, you wrote: > >On 6/12/05, Bruce Nanney <[EMAIL PROTECTED]> wrote: >> Can the notches be made for 440 with 7/8" heliax? I need to notch out >> 442.675 from getting into 449.975 and 449.950. Can notches be made to do >> this? <---Just bear in mind that coaxial stubs lik

Re: [Repeater-Builder] TKR750K2

At 08:55 PM 6/13/2005 -0500, you wrote: >Looking for anyone that is using a controller such as the Link Comm. Club >Deluxe with a TKR-750K2. >Is it possible to turn on/off the K2 internal functions via controller >outputs? <---Exactly which "internal functions" are you looking to control? Ken ---

[Repeater-Builder] Re: HAM RADIO EQUIPMENT FOR SALE (Repeater Items)

What's ur call? Ken At 10:28 AM 6/14/2005 -, you wrote: >HAM RADIO EQUIPMENT FOR SALE > >The lists is growing, I have included more stuff for sale in my >catalog. You >can browse thru the photos and descriptions to see the stuff. > >Click on my link > >http://a1cmugs.com/v-web/gallery/album

Re: [Repeater-Builder] Exciter Power Adjust

You're worried about less than 3 Db? Why? Ken At 07:23 PM 6/14/2005 -, you wrote: >Hello all from Don KA9QJG, I have a Hamtronics 220 Exciter T-301 >Peaked at 2 Watts That is driving My TE-System repeater amp gives me >80 Watts, Amp is rated at 130 Watts Continues, With the 80 Going into >th

RE: [Repeater-Builder] Exciter Power Adjust

At 02:44 PM 6/14/2005 -0500, you wrote: >I have Some Ham Friends who work in the Steel Mills near Gary Ind, they >cannot get into the Local 2 Meter Repeater . but can get in on 220, But not >Hear it very good so I thought just Maybe a little more wattage from My >cottage might just help penetra

RE: [Repeater-Builder] Exciter Power Adjust

At 03:20 PM 6/14/2005 -0700, you wrote: > The extra will not make the difference, trust me, I went from 100 watts at the antenna to 85 watts and no one knows the difference. The problem that you are dealing with is a supherp amount of intermod in that city.

Re: [Repeater-Builder] Exciter Power Adjust

At 04:47 PM 6/14/2005 -0400, you wrote: if you have a 3 db gain and and up your OUTPUT power out of the duplexer lets say 40 watts @ 3db gain .. you would be pushing another 80 watts out .. if you look at it this way .. <---Doesn't matter, IMHO. Db is Db. For all practical purposes, a 3 Db in

Re: [Repeater-Builder] Exciter Power Adjust

At 06:37 PM 6/14/2005 -0700, you wrote: > > Hey Ken, > > It's dB ... not Db ... <---Actually Neil, it's a little known factoid of History that Bell was actually more concerned in roadway paving than he was in working out any sort of logorythmic scale. But as so often happens, he found that the

Re: [Repeater-Builder] Exciter Power Adjust

At 09:23 AM 6/15/2005 -0400, you wrote: If you're concern is mobile coverage in hilly terrain, go 2M, or better yet 6. <---Gee, are you saying that 800 Mhz trunking in such topography isn't a good idea? LOL! Ken (I lost count of all the public safety agencies who went to 800 trunking, only to re

Re: [Repeater-Builder] Exciter Power Adjust

At 11:03 AM 6/15/2005 -0400, you wrote: > >That's why I was surprised to hear WV went to UHF (from LB) for their >state-wide system! I've driven through WV, even 2M dosen't get into some >of those valleys. <---Sometimes I wonder exactly where APCO is coming fromI guess all one needs do it re

Re: [Repeater-Builder] Wacom 678-A

At 05:18 PM 6/15/2005 -0700, you wrote: > It sometimes helps to >use 6 dB attenuators on either side of the cavity when tuning in this manner, so >that a relatively uniform impedance is presented. <---I would argue that you should ALWAYS use a pad (3 or 6 dB) when tuning a cavity. If for no oth

Re: [Repeater-Builder] Wacom 678-A

At 12:21 PM 6/21/2005 -0700, you wrote: > > Always terminate the un-used port in a 50 ohm load. <---Of course but I'm a firm believe in using a pad on every port. It's the only way to guarantee a 50 ohm load on them. Ken --

Re: [Repeater-Builder] IFR 1200/A Service Monitor

At 05:17 AM 6/22/2005 -, you wrote: >A question for someone who has working knowledge of the IFR 1200/A >Service Monitor. Will this monitor act like a frequency counter and >read frequencies off the air? I have been unable to find the answer.

Re: [Repeater-Builder] IFR 1200/A Service Monitor

At 03:05 PM 6/22/2005 EDT, you wrote: Both look brand new out of the box. I have a decision to make which one to sell and for how much. Any suggestions? <---You should sell the 1600 to me for $100. Ken (well, you asked for suggestions!) Yahoo! Groups Links <*> To visit your group on

Re: [Repeater-Builder] Splatter?

Dave "Splatter" infers a signal wide enough to "spill over" to an adjacent channel. Indeed, your description of them hearing your xmtr 30 KHz away confirms that. It is not an issue of duplexer tuning nor is it likely one of xmtr tuning. It is a matter of either over-deviating for one reason or a

Re: [Repeater-Builder] UHF Micor (mobile) spur

At 10:39 AM 7/2/2005 -0400, you wrote: >So, no one here has ever run into this before? Really??! >To restate what the problem is: Micor mobile UHF T34... >when running in the ham band transmit low / receive high >they are spurring 910 kHz above the transmit freq. I don't >know what would happ

RE: [Repeater-Builder] Mitrek Interface (PTT Lockup)

At 06:40 PM 7/2/2005 -0700, you wrote: >If this helps, as soon as I unplug the radio from the irlp interface, >PTT goes out.. When I plug my Mic out cable into my MIC jack on my >sound card, I get nothing but squelch... <---Obvious question is. what is the voltage on the PTT line when you con

Re: [Repeater-Builder] Repeater heard on Aviation Channel! HELP

At 01:48 AM 7/6/2005 -, you wrote: >Ok, the situation is that my repeater is being heard by commercial >aircraft on 132.950 Mhz. At first they was able to identify one user >of the system, this was in June. Then again the repeater was heard on >June 22, this time stating they could hear s

[Repeater-Builder] Re: Repeater heard on Aviation Channel! (slight digression)

At 02:35 AM 7/6/2005 -0700, you wrote: >Over 30 years ago, when Standard introduced the first japanese mobile >radios to the USA, the model 806 and 826, some of the users of the >146.82 system were being heard by the Torrance (one of the 86 >communities that make up Los Angeles county) police depa

Re: [Repeater-Builder] Re: Repeater heard on Aviation Channel! (slight digression)

At 02:57 PM 7/6/2005 -0700, you wrote: >Was it Roland Sammelman? <---I'm not really sure! I can't even remember his call :-). But he was well-known at the time (and the 37/97 machine was hot property back in the 70's!). >Then there was the one particular W6 who just would not get his >radio adju

Re: [Repeater-Builder] GMRS and VOIP

At 04:08 PM 7/8/2005 +, you wrote: >Why would present any more problems on GMRS then with the ARS. If you don't want unauthoriced (unlicensed) users you don't have to connect your radio/repeater to a computer. <---Not to get into a pissing contest over which VOIP system is the best but but th

RE: [Repeater-Builder] VXR-7000

At 07:18 PM 7/8/2005 -0400, you wrote: > >The 7000 has a spurious spec of 85 db or better, but I don't believe much >the foreign companies say. <---It's not spurs that are necessarily the problem. It's wideband garbaaage, otherwise known as plain ol' wideband noise. Solid state exciters/amps gen

Re: [Repeater-Builder] Re: Update--Chance of a Lifetime (kinda OT)???

At 01:15 AM 7/9/2005 -, you wrote: >A good point It might be money well spent to consult a lawyer and >perhaps set up a LLC (limited liability corp) to own the property >(while you own the LLC). <---An LLC isn't a corporation. It's the same

[Repeater-Builder] Re:OT: NC man charged with 'driving a cop car' due to ham antennas

At 10:43 AM 7/14/2005 -0400, you wrote: >Perception is not a basis for a violation, it would seem that there may be parts >of the occurrence missing from the story. <---This occurs to me as well. It's hard to believe that he'd even be charged without meeting more of the requisites of the statute

Re: [Repeater-Builder] off topic : Jack Gerritsen ex kg6iro

>> The Judge handed down a sentence of 120 days less 5 days for time served >> followed by 3 years of probation. a fine of $1000.00 + assessments which >> came to $3876.00 and must be paid within 1 year.

Re: [Repeater-Builder] Re: MOTOROLA MICOR receiver VHF

At 12:58 AM 7/21/2005 -, you wrote: >Are already have a quiet receiver and very good Sensitivity MOTOROLA >MICOR radio VHF but occasionally have problem with RF getting back in >to receiver ended only happen at night and not every night when >they're GOOD conditions repeater RF feedback gets

[Repeater-Builder] Re: Use a band pass filter between pass-reject duplexer and antenna?

At 08:17 PM 7/21/2005 -, you wrote: >How common is it to use a band pass filter ahead of a pass-reject >duplexer, i.e., between the duplexer and feed line to antenna. Any >reason for adding a band pass filter there on antenna input to >duplexer vs. between the preamp pre selector cavities re

Re: [Repeater-Builder] Re: OT: NC man charged with 'driving a cop car' due to ham antennas

At 08:45 PM 7/21/2005 -0400, you wrote: >Did you also note what looked to me to be a flashing lite on the left >rear deck behind the deck speaker? <---Looks like a set of wig-wags to me... Ken -- President and CTO - Arco

[Repeater-Builder] Re: Use a band pass filter between pass-reject duplexer and antenna?

At 05:54 PM 7/21/2005 -0700, you wrote: >I would not put a BP cavity between the duplexer and the antenna, simply >because such a cavity would diminish the function of the duplexer. <---Gotta disagree with you here, Eric. Depending on the underlying problem, the addition of a single BP cavity ca

[Repeater-Builder] Re:OT: NC man charged with 'driving a cop car' due to ham antennas

At 01:48 AM 7/22/2005 -0400, you wrote: >Yeah Right USDHS is the First step to being American Nazis > I Vant to see your papers <-Between the above comment and your signature, I'm thinking you had a bad experience with HS? Either that or you're a Michael Moore fan? Ken (sorry, I've nev

Re: [Repeater-Builder] Re: Use a band pass filter between pass-reject duplexer and antenna?

At 10:20 AM 7/22/2005 -0400, you wrote: Sorry, Ken-look at that again. One doesn't normally put a cavity between >the output of the duplexer and the antennait would have to be broad >enough to pass both tx and rx. <---Ooops! Didn't catch the between duplexer and antenna part (that's what I

Re: [Repeater-Builder] Re: MOTOROLA MICOR receiver VHF

At 08:01 PM 7/22/2005 -, you wrote: >Thanks to all who reply to this thread !!! > real pain only happens bring UP THE repeater ! >Yet never keys up on it owen ? <---Yep, sounds exactly like a mix that involves your own repeater's transmitter. Obviously, there's something else "out there" t

Re: [Repeater-Builder] Re: Beagle Virus

At 09:42 PM 7/26/2005 -0400, you wrote: My email address is being spoofed.  It's not me. If you look at my name associated with this reply, you'll see I use my real name, while the spoofer uses "Kuggie" You'll also note that the date is of a time in the future, not the real time. <---Anyo

Re: [Repeater-Builder] coax question

At 10:50 AM 7/31/2005 -0700, you wrote: LMR400 (not flex!) by times microwave if on a budget.

[Repeater-Builder] Re: shield this foreign broadcast ??

At 06:28 PM 8/5/2005 -, you wrote: >I have a Micor Motorola mobile repeater operating on 147.165 MHz >and I have foreign broadcast transmitting on a frequency of 11.700 >MHz which is getting into the IF section of my receiver which also >operates on the same frequency 11.700 MHz so my que

Re: [Repeater-Builder] Re: shield this foreign broadcast ??

At 03:20 PM 8/5/2005 -0400, you wrote: >Not very well, but yeah, there's usually enough FM (maybe phase shift as >it bounces off the atmosphere?) in the station to hear something, but >it's not very intelligible. <---Well, I don't buy it. I have never heard of a case where a foreign shortwave

Re: [Repeater-Builder] Re: shield this foreign broadcast ??

At 12:40 PM 8/5/2005 -0700, you wrote: >VOA. <---VOA isn't broadcast overseas but in NC I believe? Field strength has got to be a definate factor! Ken Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe fro

Re: [Repeater-Builder] Re: shield this foreign broadcast ??

At 03:54 PM 8/5/2005 -0400, you wrote: > >Yeah, it actually happend to us, with a Micor rx mounted in a >non-unified chassis separated from the rest of the base. Other then the >pop-on shield on top, no other shielding except the rack cabinet, and >when the ground got pulled off, we started hear

Re: [Repeater-Builder] Nuelink Transmitter Questions Frequency Problems

At 03:46 PM 8/11/2005 -, you wrote: >I have an Nuelink Transmitter, model RFL-TV4 that had an original xtal >in it of 145.390. I ordered a new xtal for the transmitter at >145.410. I put the xtal in, and it does not oscillate at 145.410, but >rahter at 145.383. Thought the xtal was bad, h

Re: [Repeater-Builder] Nuelink Transmitter Questions Frequency Problems

At 09:20 AM 8/11/2005 -0700, you wrote: >If you have the schematic, I'd look closely at the oscillator <---Oh, one other thing. You did try to pull it on channel by adjusting either the associated trimmer cap or adjustable inductor, yes? Ken --

RE: [Repeater-Builder] Repeater interference problem cured. Caused by Uniden scanner a mile away.

At 09:46 PM 8/11/2005 -0500, you wrote: >Neil, I have a CTCSS decoder 131.8 on My 444.750 Micor unified Repeater. I >Have cable leakage so bad on the input 449.750 it keys up the repeater a >lot, Even with the PL <---Well...there's always DPL :-) Ken -

[Repeater-Builder] Re: More M Gear 2 sell and misc.

At 09:16 PM 8/15/2005 -0400, you wrote: *$5.00* Motorola Emergency HT " RED " in color <---Oh man! I haven't seen a red HT220 for 30 years! I just may have to grab for posterity! Ken> -- President and CTO - Arcom

Re: [Repeater-Builder] For Sale - OT, hopefully the end

At 09:59 PM 8/23/2005 -0400, you wrote: >I never cease to be amazed by the number of people whom don't understand >that the PERIOD is the important thing here and that it was in the correct >place. <---I suspect most pre-menopausal women certainly know this! Ken (sorry, couldn't resist...)

Re: [Repeater-Builder] HT-220 UHF

At 03:39 PM 8/26/2005 -0400, you wrote: Well I am cleaning out the parts drawers and I found a 5 watt amp for an HT-220.It is older than dirt but it is good. <--- I assume since you said 5 watt, as opposed to 4 watt, it's a VHF one? Ken --

Re: [Repeater-Builder] Choosing a Site

At 07:31 AM 11/12/2005 -0800, you wrote: Joe, all I can say is Good Luck. Commercial sites are getting difficult to get, they don't want to allow amatuer on the towers. <---It might be worth looking to private land owners for sites. Small, secure buildings (approx 8 X 8) aren't that expensive t

Re: [Repeater-Builder] Choosing a Site

At 07:47 AM 11/12/2005 -0800, you wrote: > > Depending on the equipment involved, try an outdoor weatherproof > (ok, weather resistant) cabinet. <---Outdoor cabinets suck in Oregon :-) Ken -- President and CTO - Arcom

Re: [Repeater-Builder] decibel duplexer

At 12:28 PM 11/12/2005 -0800, you wrote: Our club is in need of a new set of cans for our repeater and we have access to some used Decibel DB4044 cans. Speces say they are for freqs 148-174 with a min 3 meg separation. We need to tune it for 145.295 with of course 600 k separation. Can these

Re: [Repeater-Builder] Diplexer for UHF/VHF Repeating...

At 01:14 PM 11/14/2005 -, you wrote: >I know that this has been asked before, but does anyone know of a >commercial diplexer with a higher power rating so that one can use one >dualband antenna at the repeater site for both a VHF and UHF repeater.

Re: [Repeater-Builder] Diplexer for UHF/VHF Repeating...

Guess I've been lucky so far then. 5 years and going strong But I will keep a watchful eye out! Ken At 09:59 AM 11/14/2005 -0500, you wrote: > I have found that most amateur band couplers or "diplexers" >do not seem to operate well in full duplex 100 watt 2x environments >for very lon

Re: [Repeater-Builder] Diplexer for UHF/VHF Repeating...

At 12:25 PM 11/14/2005 -0500, you wrote: > For me, impending failure usually starts with rx desense out >of nowhere, followed by heat to the touch, followed by noticeable >power output drops... I never really saw it on packet systems as the >short duty cycle helps the heat issue, but ma

Re: [Repeater-Builder] Tower Side Mount Verticle Antennas

At 07:36 PM 11/14/2005 -, you wrote: >Is there a recommended distance from the leg of the tower that a >2-meter or 440 MHz Antenna should be mounted? I am going to have a >couple of Antenna Mounts welded up and I wondering if they should be a >1/4 or 1/2 wave from the tower leg or poss

[Repeater-Builder] Re: what is the Flat audio ? and what is the applicaion for it

At 08:00 PM 11/21/2005 -0500, you wrote: i want to know about the Flat audio ? and what is the applicaion for it <---Flat audio is what happens when you leave your opened bottle of audio on the coffee table overnight Ken ---

Re: [Repeater-Builder] Re: what is the Flat audio ? and what is the applicaion for it

At 08:26 PM 11/21/2005 -0500, you wrote: >No, Ken. Flat audio is what you get when your HT is run over by a >pavement roller. <---Unless it's a vibrating pager that is run over. Then you have a pancake motor. Ken -- Presi

Re: [Repeater-Builder] Looking for a UHF Circulator and load

At 06:00 AM 11/22/2005 -0800, you wrote: >I'd like to try a circulator before buying one, since >if it doesn't help the situation, it's a waste of >money to have it there. <---Aside from presenting a pretty much constant 50 ohm load to your xmtr, why do you think a circulator will make a differen

Re: [Repeater-Builder] Looking for a UHF Circulator and load

At 04:27 PM 11/22/2005 +, you wrote: >Well, for one it will limit any locally generated mixing products >resulting from rectification in the PA transistors. <---Yes it will. But that is not the cause of desense, that is one of the causes of intermodulation products. Ken ---

Re: [Repeater-Builder] Looking for a UHF Circulator and load

At 08:15 AM 11/22/2005 -0800, you wrote: >I once had an Exec II RFPA that didn't "like" the duplexer load it was >TXing into. Had massive desense unless there was a circulator between the >TX & duplexer. <---Makes sense. I know all about PA's driving a reactive load :-) Ken ---

Re: [Repeater-Builder] Looking for a UHF Circulator and load

At 09:09 AM 11/22/2005 -0800, you wrote: > > The resistive load isn't an antenna either. <---I generally face little resistance when it comes to antennae... Ken -- President and CTO - Arcom Communications Makers of stat

Re: [Repeater-Builder] Re: Looking for a UHF Circulator and load

At 06:41 PM 11/22/2005 -, you wrote: >Because all that unmatched "stray rf" is very often >looking for some place betta' (or worse) to go. > > though I wouldn't qualify it as a fix for desense. <---That's my point. The symptoms (and causes) of intermod are not the same as the symptoms

Re: [Repeater-Builder] Looking for a UHF Circulator and load

At 10:47 AM 11/22/2005 -0800, you wrote: >If anything is coming back down the antennaand through >the duplexer and mixing in the PA, the circulator will >prevent or reduce that effect. <---Absolutely correct. BUT that is not the same thing as desense nor are the symptoms the same. You said the d

Re: [Repeater-Builder] Looking for a UHF Circulator and load

At 10:54 AM 11/22/2005 -0800, you wrote: >If the PA and duplexer weren't happy together, >wouldn't I also get desense when running on the dummy >load also? Remember it's perfectly happy on a 500w >Bird load. <---You answered your own question. Suspect the antenna, feedline or both. Ken -

Re: [Repeater-Builder] Re: Looking for a UHF Circulator and load

At 12:07 AM 11/23/2005 -, you wrote: > >The performance of the circulator on the test >equipment is not a real world test. In operation >the circulator will heat up and change value >quite a bit. Much of operating a circulator is >about heat management. <---Yep. Just wait until all that

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