[Repeater-Builder] FREE UHF COMPA STATION REPEATERS
FREE FOR THE TAKING FROM GARDEN CITY, MICHIGAN 15 MILES WEST OF DOWNTOWN DETROIT Two Motorola UHF Compa-Stations. Both 9 Watts out. NO DUPLEXERS. One is a repeater in a small four foot cabinet with covers On the air now. The other was a base station in repeater use. Not working? Both were moved to the Ham band. Also have some spare Tx and Rx modules. No controllers but were hooked up to external units, cables left in place. COMPLETE Service Manuals. These are being replaced with another repeater on the same pair. This stuff goes into the dumpster in one week!! VERY HEAVY! PICK UP ONLY!! I WILL NOT SHIP!!! Email for particulars, include your phone number and I will call you back. (I getunlimited long distance) Pictures on request. (I still need to take them) Shanon Lee Herron KA8SPW Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [Re: [[Repeater-Builder] Spectrum Communication SCR1000 VHF Manual]]
Hmm, perahps you are right. These are the answers I propose for those questions. mch [EMAIL PROTECTED] wrote: On the contrary. I think we will be answering a lot of questions... What duplexer gives me the most off-freq rejection? The dupleser with the most off-freq rejection will be the one NOT connected to the Spectrum transmitter. What can I do to reduce TX noise Replace the spectrum transmitter with a different manufacturer. Does anyone have a spectrum analyzer for sale? Yes, but with all the gas money you are losing on repeat trips to the transmitter site, along with buying the best cables, duplexer, etc for the package you probably won't be able to afford the analyzer. I'm not knocking Spectrum - I'm just relating experience. I have yet to see one that stayed clean over the long haul. Any that aren't clean surely can't meet the type acceptance they once had. Well said, very well said. Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
RE: [Re: [[Repeater-Builder] Spectrum Communication SCR1000 VHF Manual]]
I'm not knocking Spectrum - I'm just relating experience. I have yet to see one that stayed clean over the long haul. Any that aren't clean surely can't meet the type acceptance they once had. Well said, very well said. Humor: I have a Spectrum repeater on the air. Oh really? What frequency is it on? All of them. Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
[Repeater-Builder] info about ci motorola
hello i have an old gsm PA and i like use it on ham tv if possible but i have not the datasheet on the ci the reference is : shwe5142 and srfe7003 tank you xavier ON4XAV Belgium Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] E.F. Johnson 3450 LPI Repeater
A: I'd stay away from Sentry, as they can't even make a good set for Mastr II's. B: Do a web search. I know of a company near Sacramento, that makes crystals, and will quote prices. Should be one or two other possible places out there. - Original Message - From: Brent DeSalvo [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Sunday, November 23, 2003 7:49 PM Subject: [Repeater-Builder] E.F. Johnson 3450 LPI Repeater E.J. Johnson 3450 LPI Repeater data repeater.. Hello all im looking to re crystal a few of these repeaters that i have.. I have contacted ICMFG and they no longer will cut crystal for this unit im waiting on a response from bomar crystal. does anyone have no of any other Co. that will cut crystals for this unit ? ? ? it is not to old and johnsonno longer cuts crystals they use icmfg they told me along with Bomar.. Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Syntor, any good?
Go look at: http://www.piexx.com http://www.repeater-builder.com/rbtip/syntorindex.html http://www.open.org/~blenderm/syntorx http://www.geocities.com/SiliconValley/5857 Adi Linden wrote: The SRA Syntors have only one synthesizer ... is used in either the receive or transmit mode. I guess no good for duplex then. I guess that a range III (150.8-162MHz) Syntor is unsuitable for 144.39MHz, correct? I am asking just in case someone did get them to work in the amateur radio band. Adi -- Adi Linden | va3adi | [EMAIL PROTECTED] | http://adis.ca +-+ IRLP Node 2590 in Sioux Lookout, Ontario Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Syntor, any good?
Go look at: Thanks, quite the wealth of information! Looks like the 150.8-162MHz is being used for 2 meter amateur use. Now I just need to get my hands on a manual. Does anyone have a Syntor VHF manual they're willing to part with? Thanks, Adi -- Adi Linden | va3adi | [EMAIL PROTECTED] | http://adis.ca +-+ IRLP Node 2590 in Sioux Lookout, Ontario Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
[Repeater-Builder] WTD 19' racks
Looking for 19 racks .. would like to shave 2 sides closed Please email me with info size and pic's Thanks Rick Szajkowski VA3 RZS Charlotte Darby VA3 CMR Node Owners of IRLP Node 2120 Lakefield Ont Canada Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Syntor, any good?
Somehow, I knew this question was coming ... Neil Adi Linden wrote: Go look at: Thanks, quite the wealth of information! Looks like the 150.8-162MHz is being used for 2 meter amateur use. Now I just need to get my hands on a manual. Does anyone have a Syntor VHF manual they're willing to part with? Thanks, Adi -- Adi Linden | va3adi | [EMAIL PROTECTED] | http://adis.ca +-+ IRLP Node 2590 in Sioux Lookout, Ontario Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Ink Cartridge Refills
I'll give you some advice, but it has nothing to do with refilling inkjet cartridges QUIDDIT! Get a Laser printer, and quit playing the Gillette inkjet game Ed W5ZS *** REPLY SEPARATOR *** On 11/24/2003 at 9:26 PM Chuck Kelsey wrote: Hello all you repeater builders. I have a bit of an off-topic question that I'm sure someone here can help me with. I, for the first time, sent in a couple of empty printer ink cartridges to be refilled. The black one came back defective. (Haven't tried the color one.) Can anyone give me their experiences, good or bad, with these refill outfits? I use this ink jet printer to print out repeater frequencies and to print out construction documentation on repeater projects -- just in case you were wondering how this problem relates to repeater building ;-) Please reply directly to: mailto:[EMAIL PROTECTED] Chuck Kelsey WB2EDV Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Syntor, any good?
Somehow, I knew this question was coming ... :) Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Ink Cartridge Refills
Personally I find it not worthwhile. Why risk damaging your printer by using off brand ink or cartridges? I did it once and it leaked all over the inside of my printer! Richard, N7TGB -Original Message- From: Chuck Kelsey [mailto:[EMAIL PROTECTED] Sent: Monday, November 24, 2003 6:27 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Ink Cartridge Refills Hello all you repeater builders. I have a bit of an off-topic question that I'm sure someone here can help me with. I, for the first time, sent in a couple of empty printer ink cartridges to be refilled. The black one came back defective. (Haven't tried the color one.) Can anyone give me their experiences, good or bad, with these refill outfits? I use this ink jet printer to print out repeater frequencies and to print out construction documentation on repeater projects -- just in case you were wondering how this problem relates to repeater building ;-) Please reply directly to: mailto:[EMAIL PROTECTED] Chuck Kelsey WB2EDV Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Ink Cartridge Refills
If it is HP printer, I have never been successful at refilling one and making them work. In addition to that, they require an HP cartidge. The aftermarkets will not work correctly. W3GFD On Mon, 24 Nov 2003 20:36:59 -0600 Ed Lawson [EMAIL PROTECTED] wrote: I'll give you some advice, but it has nothing to do with refilling inkjet cartridges QUIDDIT! Get a Laser printer, and quit playing the Gillette inkjet game Ed W5ZS *** REPLY SEPARATOR *** On 11/24/2003 at 9:26 PM Chuck Kelsey wrote: Hello all you repeater builders. I have a bit of an off-topic question that I'm sure someone here can help me with. I, for the first time, sent in a couple of empty printer ink cartridges to be refilled. The black one came back defective. (Haven't tried the color one.) Can anyone give me their experiences, good or bad, with these refill outfits? I use this ink jet printer to print out repeater frequencies and to print out construction documentation on repeater projects -- just in case you were wondering how this problem relates to repeater building ;-) Please reply directly to: mailto:[EMAIL PROTECTED] Chuck Kelsey WB2EDV Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ TEXTAREA NAME=Signature ROWS=4 COLS=60TEXTAREA NAME=Signature ROWS=4 COLS=60TEXTAREA NAME=Signature ROWS=4 COLS=60 Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Ink Cartridge Refills
Come on guys I gave you a direct email link to keep this off the list. Sorry to Kevin and anyone else that might not appreciate the OT traffic. Again: mailto:[EMAIL PROTECTED] Chuck - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, November 24, 2003 10:02 PM Subject: Re: [Repeater-Builder] Ink Cartridge Refills If it is HP printer, I have never been successful at refilling one and making them work. In addition to that, they require an HP cartidge. The aftermarkets will not work correctly. W3GFD Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Digest Number 2221
Adi, Syntors (SRA) are so cheep (I found several at Peoria hamfest for $3.00 each) that you could use easily two for a repeater. You may wish to check out http://www.shout.net/~rieslabs/ . Roger Ries there has some unique Syntor info. He recently converted three range III Syntors for us to 144.39 for APRS. He also has an adapter to use garden variety (2716, etc.) EPROM's in the Syntor. He also has software to do your own if you have a generic EPROM writer. He also has some interesting Micor conversion info. 73, Al, K9SI Date: Mon, 24 Nov 2003 14:13:07 -0600 (CST) From: Adi Linden [EMAIL PROTECTED] Subject: Re: Motorola Syntor, any good? The SRA Syntors have only one synthesizer ... is used in either the receive or transmit mode. I guess no good for duplex then. I guess that a range III (150.8-162MHz) Syntor is unsuitable for 144.39MHz, correct? I am asking just in case someone did get them to work in the amateur radio band. Adi -- Adi Linden | va3adi | [EMAIL PROTECTED] | http://adis.ca +-+ IRLP Node 2590 in Sioux Lookout, Ontario Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Syntor, any good?
A pair of Syntor UHF units configured as a repeater has performed flawlessly for several years at this site: http://www.w4dex.com/kc4fwc/444575.htm Dex Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [[Repeater-Builder] Spectrum Communication SCR1000 VHF Manual]
--- In Repeater-Builder@yahoogroups.com, JOHN MACKEY [EMAIL PROTECTED] wrote: wow, after all the warnings you still did it decided to put a spectrum on the air!!! Just because something is type accepted does not mean it is quality. Good luck, you'll need it. I guess you won't need any more advice from us!! OH NO MR MACKEY, That's where you are WRONG AGAIN !! I unlike other some people ALWAYS have questions, and I'll ask them. The perfect radio presents NO challange there for no chance for a learning experiance. Oh I put a line in my post for you... Or if there is someone that would like to contribute to the cause contact me off board. If you would like to contribute a, SAY, Motorola or GE, you can contact me off board. Otherwise I must use what I can get at a price that I can afford. First, YOU or anyone else has NEVER been interfered with by one of MY repeaters. I DO NOT PUT UP TRASH !!! IF it's not right, it does not go into service by me period. You did not learn from my other posts that I WILL NOT PUT UP CRAP NOR DO I HAVE A N Y TOLORANCE FOR ANY ONE THAT DOES, PERIOD. I beleave if it is crap in needs to be taken off the air. That is exactly what I told the trustee of our clubs repeater. I spent many hours making shure that it was one of the best sounding machines in town and may be THE best. 73 ALL ac0y5 [EMAIL PROTECTED] wrote: After all the wornings from the group, and the offer of a great ham and a very good friend, I have decided to put a SCR1000 on the air as a repeater on 146.700Mhz. I need a manual for this animal and seeing as how no one else wants to use one there must be several manuals available. Seeing as how these animals must have been TYPE ACCEPTED for commertial use they must meet some minimal spectral requirements. Or if there is someone that would like to contribute to the cause contact me off board. Thanks and 73 AC0Y Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [[Repeater-Builder] Spectrum Communication SCR1000 VHF Manual]
--- In Repeater-Builder@yahoogroups.com, mch [EMAIL PROTECTED] wrote: JOHN MACKEY wrote: I guess you won't need any more advice from us!! On the contrary. I think we will be answering a lot of questions... What duplexer gives me the most off-freq rejection? What can I do to reduce TX noise Does anyone have a spectrum analyzer for sale? Etc. ac0y5 [EMAIL PROTECTED] wrote: Seeing as how these animals must have been TYPE ACCEPTED for commertial use they must meet some minimal spectral requirements. Well, at least ONE (the one submitted for acceptance) met some standards at the time it was submitted. Of course, I don't know of any standards for follow-up testing for when components break down. So, yes, at least one met some kind of standards at one point. I'm not knocking Spectrum - I'm just relating experience. I have yet to see one that stayed clean over the long haul. Any that aren't clean surely can't meet the type acceptance they once had. I've been interfered with from several 'type accepted' transmitters. This is one thing that Motorola always used to brag about when submitting bids. While Motorola specs are 'guaranteed minimum specs', YEP, I've heard that from many a Motorola salesman. But experance, has told me that motorola will over SPEC a base transmitter for the sale. SPEC ON DEMAND many others are 'typical specs'. There IS a difference. With one, all units meet the specs, with the other, half the units do - HALF DON'T! Joe, I don't mind taking your comments, I read a little concern. Please read my response to MR MACKEYs post. 73 ALL Joe M. Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Motorola Syntor, any good?
You knew the question was coming, but you did not answer it? - Original Message - From: Neil McKie [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, November 24, 2003 5:36 PM Subject: Re: [Repeater-Builder] Motorola Syntor, any good? Somehow, I knew this question was coming ... Neil Adi Linden wrote: Go look at: Thanks, quite the wealth of information! Looks like the 150.8-162MHz is being used for 2 meter amateur use. Now I just need to get my hands on a manual. Does anyone have a Syntor VHF manual they're willing to part with? Thanks, Adi -- Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [[Repeater-Builder] Spectrum Communication SCR1000 VHF Manual]
--- In Repeater-Builder@yahoogroups.com, Kevin Custer [EMAIL PROTECTED] wrote: ac0y5 wrote: I WILL NOT PUT UP CRAP NOR DO I HAVE A N Y TOLORANCE FOR ANY ONE THAT DOES, PERIOD. I beleave if it is crap in needs to be taken off the air. That is exactly what I told the trustee of our clubs repeater. I spent many hours making shure that it as one of the best sounding machines in town and may be THE best. 73 ALL Sometimes the best sounding repeaters are the ones that need to be looked at more closely. Over occupied bandwidth issues can result in excellent sounding audio, but at the expense of needed filtering to keep things clean an be a good neighbor, especially in a 15 Kc channel spacing world. We had a Spectrum once, it was absolutely the best sounding repeater around by far, but at the expense of precious AF filtering ahead of the modulator. After the charge pump capacitors became dry in the ACC controller we were using and the 15 Kc audio that resulted on the B- rail created a 15 Kc spur, we seriously looked into the audio chain of the Spectrum Exciter. We were surprised that the Low Pass filtering section was essentially non existent. This filter was an option that was never installed in most ham repeaters delivered from Spectrum from the factory. Spectrum, at least they named them properly. Just be damn certain you look at it with a SA and continue to do so on a very regular basis. Well said Kevin, but not JUST Spectrum machines. All repeater owners should look at their machines at the very least monthly on a SA as well as have local monitoring equipment. That is why I'm not crazy about NEW HAMS buying and or owning repeaters with out some experiance and knowlege. 73 to ALL Kevin Custer Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Re: [[Repeater-Builder] Spectrum Communication SCR1000 VHF Manual]]
mch [EMAIL PROTECTED] wrote: ac0y5 wrote: Otherwise I must use what I can get at a price that I can afford. I don't know what you paid (perhaps nothing?), but you can buy a Motorola or GE for a couple hundred bucks down to next to nothing. If I were to consider my time, I would save more money spending a couple hundred bucks now. Yes, I would take a Spectrum. I could use the rack for mounting a controller or something. The spectrum RF gear does work EXCELLENT as a door stop!! But the main problem I've had with Spectrum is that it can be 'right' when you put it on, but a few weeks later, the tuning changes on its own and it's no longer 'right'! I've also seen this with spectrum equipment. I eagerly anticipate your views on Spectrum in a year. :-)) Yes, that will be interesting. Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
[Repeater-Builder] 2m fm
Hi I am looking for a basic radio to build that is 2 m Fm, and does not use the ic ne 602/612 thanx edd Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Re: [[Repeater-Builder] Spectrum Communication SCR1000 VHF Manual]]
Kevin Custer [EMAIL PROTECTED] wrote: Sometimes the best sounding repeaters are the ones that need to be looked at more closely. Over occupied bandwidth issues can result in excellent sounding audio, but at the expense of needed filtering to SNIP Very very true. Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Re: [[Repeater-Builder] Spectrum Communication SCR1000 VHF Manual]]
ac0y5 [EMAIL PROTECTED] wrote: OH NO MR MACKEY, That's where you are WRONG AGAIN !! I unlike other When was I wrong the FIRST time? some people ALWAYS have questions, and I'll ask them. The perfect radio presents NO challange there for no chance for a learning experiance. Oh I put a line in my post for you... Or if there is someone that would like to contribute to the cause contact me off board. If you would like to contribute a, SAY, Motorola or GE, you can contact me off board. Otherwise I must use what I can get at a price that I can afford. First, YOU or anyone else has NEVER been You can easily find a a Motorola or GE at most hamfests and on ebay. Example on this web link: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3059774381category=4674 interfered with by one of MY repeaters. I DO NOT PUT UP TRASH !!! IF it's not right, it does not go into service by me period. You did We'll see what happens AFTER you put up your Spectrum SNIP shure that it was one of the best sounding machines in town and may Please be sure to read what Kevin told you about the best sounding machines Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Looking For A VHF Repeater
For ideas visit repeater-builder dot com web site, you may want to
contact a local 2 way radio shop to see if they have equipment on that
tower and about getting help with equipment and setting it up on your
pair. Most ham repeaters are made from 2 or 3 generation back commercial
radios that were removed from service when a fleet changed to the newer
radio system, when you get up a tower that far the best ones are crystal
controlled which provides good frequency stability. The antennas used on
repeaters are actually the opposite of typical ham radio uhf/vhf styles,
the repeater antennas are designed to fold the signal downwards rather
than upwards - this helps the local users as well as those in the
distance. Feedline losses will become dramatic at the 370-400 foot
length so hopefully the tower already has hardline you can connect onto
both ends, if you had a 100 watt unit with 6 db loss using some super
coax you would only have 25 watts at the top - good feedline is a must
on a tall tower. The duplexing cavities may not be enough if there is
other radio/s on the commercial 150-160 band nearby so be on the lookout
for other filters to help shut off those signals if there is already
equipment on site on high band. Autopatching controllers often start
around 6-650 but if all you need is the basic id and controller the
nhrc-2 makes a great project for the group and should take 4 or 5
classrom hours to complete. Once you aquire everything working on the
ground and do some off-tower testing it is a good idea to keep
everything locked inside one cabinet if possible. You may want to visit
ebay and look for a motorola micor or ge mastr2 radio section to do the
radio part, this will be the lowest cost part, most high band mobiles
sell for 45-95 bux - you will not need any of the factory options as
your controller that does the id function will also do the time-out
timer as well as hang time and courtesy tone. You will get some good
ideas about the radios themselves when you get the tour inside the 2way
radio shop and see the test equipment used to tune your circuits to the
correct frequency and check for spectral purity - this is where the
commercial radios shine head and shoulders above using any ham radio
radio pieces to make a repeater.
kg4ogn wrote:
Hello,
My name is Alexander and my callsign is KG4OGN. I am the president
of the Springstead High School Amateur Radio Club KG4VJS. My club is
trying to put up a 2 meter repeater. So far we have our coordination
{147.075+} and a spot atop a 350 foot tower. We are in need of a
complete repeater so if anyone has anything just sitting around they
want to get rid of please let me know. Please do note that this is
for a high school radio club and is being funded my high schoolers so
if you could possibly cut us a deal on the price it would really
help! Thanks so much and 73 My e-mail address is [EMAIL PROTECTED]
Alexander KG4OGN
President/Founder
SHSARC ~ KG4VJS
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
--
73...Clark Beckman N8PZD
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Re: [Re: [[Repeater-Builder] Spectrum Communication SCR1000 VHF Manual]]
At 11:03 PM 11/24/03 -0600, you wrote: mch [EMAIL PROTECTED] wrote: ac0y5 wrote: Otherwise I must use what I can get at a price that I can afford. I don't know what you paid (perhaps nothing?), but you can buy a Motorola or GE for a couple hundred bucks down to next to nothing. If I were to consider my time, I would save more money spending a couple hundred bucks now. Yes, I would take a Spectrum. I could use the rack for mounting a controller or something. The spectrum RF gear does work EXCELLENT as a door stop!! But the main problem I've had with Spectrum is that it can be 'right' when you put it on, but a few weeks later, the tuning changes on its own and it's no longer 'right'! I've also seen this with spectrum equipment. I eagerly anticipate your views on Spectrum in a year. :-)) Yes, that will be interesting. Let me tell you about a certain high-band Spectrum... Many years ago the W6TRW ham radio club at TRW in Los Angeles had a Spectrum that was factory ordered in the low end of the 145mhz range... Mind you this group had some high powered RF types as members guys that designed RF links for spy satellites... I worked there in the 1986-87-88 time frame For a feeling of the environment there read the book The Falcon and the Snowman sometime... it all happened there. The Spectrum SCR-1000 RX was quite sensitive once you got past the tendency to desense (use the best duplexer you can afford), and the TX was OKexcept... We had it feeding a isolator, a pass cavity, a PD 6-can pass- reject duplexer, 30-40 feet of 7/8 feedline and a 22' Stationmaster. The equipment was installed in the utility room of the penthouse of a 12 story office building, with the antenna on a 10 foot tower section mounted to the roof of the adjacent elevator equipment room. There was one other radio there, a 60w GE Mastr-II UHF repeater used by the company rent-a-cops (the radio was complete with a 4-channel GE voter, with three aux receivers in outlying buildings - this was a 10-12 building campus spread across 4 city blocks). There is still to this day another 3 story government office building across the street that hosts a number of city, county, state and federal agencies and on the roof is a forest of antennas... Despite the skill of the RF engineers at TRW, and at least one, maybe two return trips to Spectrum, over a period of time the Spectrum caused the W6TRW folk to get to know the radio techs from the LAPD, the LAFD, the LA county radio shop, the FBI, the FAA (at LAX, a few miles away), the Navy, the Air Force, the Secret Service, and at least one alphabet soup agency that officially doesn't exist... (one of the customers for the spy satellites) all of which used the radio spectrum in the 136-150 or 160-172mhz range or somewhere in the 225-420mhz range Each time the interference complaints stopped the day the Spectrum went off the air. Each time it was turned back on after being fixed it was clean for a while (anything from a week to 4 months) then a phone call arrived from a different agency... It was replaced with a factory built 136-150mhz 90w Mastr-II that was set up by WA6DPB's commercial 2-way shop. The day it went up on the building the temptation to drop the Spectrum off the side was there but the ham club would have had to pay for the cracked concrete 12 stories below. Aside from resetting the frequency about 6 months after it went up (after the crystals aged a little) the GE radio has needed zero attention in over 12 years. Please tune your new toy with a spectrum analyzer, then think three times about putting it on an antenna, and if you value your amateur license don't put it on a hill. Mike WA6ILQ Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
