[Repeater-Builder] Sinclair SRL320 (SC320-SF4SNM) Collinear omni antenna, 10 dBd gain, 440-450 MHz
I am planning to use this antenna for a Repeater and just looking if anybody has used this antenna or recommend something similar. Thanks, Romy VE7RMY
[Repeater-Builder] Re:Sinclair SRL320 (SC320-SF4SNM) Collinear omni antenna, 10 dBd gain,
Hi, I had a SRL-320 10 DB UHF antenna till a year and a half ago and lightning hit it and I had splinters and brass tubes in my yard. It worked great as it was cut for the ham band. Check the pigtail for cracks in the jacket of the coax and if bad replace it.. It was a good antenna till Mr. Lightning came to town. Paul R. Dumdie Jr. 73 W9DWP/R IRLP-NODE-4455 443.025/2A 145.270/1B/1Z/NAC-293 ARC-Radio-8 KCARES KCAPS HERD546 EX WB9QWZ
[Repeater-Builder] Re: RP-70U repeater not transmitting at full power
Sold many of them, typical with a well tuned duplexer is about 10 watts best, average 8-9 watts. Would not waste any money trying to find a weak part, if the duplexer is ok, leave it alone till it quits completely, won't see any difference between 9 12 watts. Tracomm --- In Repeater-Builder@yahoogroups.com, Aisen Lopez aisendwi...@... wrote: --- On Mon, 3/2/09, Steve Passmore k6...@... wrote: From: Steve Passmore k6...@... Subject: Re: [Repeater-Builder] RP-70U repeater not transmitting at full power To: Repeater-Builder@yahoogroups.com Date: Monday, March 2, 2009, 12:29 AM You sure it's 15 watts? The service manual on repeater-builder specifies it's a 12 watt repeater http://www.repeater -builder. com/standard/ standard- index.html Add in the duplexer, cables, age, possible tuning out of it's designed 450-470 range and you get about 8 watts. Aisen Lopez wrote: Hello, I've got a Standard RP-70U UHF repeater that is not transmitting at full capacity. The thing is supposed to have a max RX power of 15 watts. Yet, I plugged a power/swr meter and my dummy load, when I checked it was only putting out 7 watts. So I looked in the manual, found the adjustment points and tried to adjust for maximum power and it won't go over 8 to 8.5 watts of TX power. It doesn't seem to be having any problems with the duplexer. It just won't go over 8 watts. Could it be a failing TX transistor?. RX is fine and there are no other problems with the repeater, just the power issue. Any thoughts? OK, yes the manual does say 12 watts. That's the operating power, but it does go up to fifteen. The freq is under the 450-470 range (it's on 464.825/469.825). It looks like I'll have to take it to the tech. to have the duplexer retuned. Thanks for your help and everybody else's help!.
Re: [Repeater-Builder] Re:Sinclair SRL320 (SC320-SF4SNM) Collinear omni antenna, 10 dBd gain,
Yep, same here. Worked great until the lightning strike. That was the last fiberglass antenna for me and haven't had a problem since using folded dipole designs. I do know of folded dipole arrays that have taken direct hits and suffered no damage but know of no fiberglass antennas that have survived. Chuck WB2EDV - Original Message - From: Paul Dumdie w9...@sbcglobal.net To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 03, 2009 7:18 AM Subject: [Repeater-Builder] Re:Sinclair SRL320 (SC320-SF4SNM) Collinear omni antenna, 10 dBd gain, Hi, I had a SRL-320 10 DB UHF antenna till a year and a half ago and lightning hit it and I had splinters and brass tubes in my yard. It worked great as it was cut for the ham band. Check the pigtail for cracks in the jacket of the coax and if bad replace it.. It was a good antenna till Mr. Lightning came to town. Paul R. Dumdie Jr. 73 W9DWP/R IRLP-NODE-4455 443.025/2A 145.270/1B/1Z/NAC-293 ARC-Radio-8 KCARES KCAPS HERD546 EX WB9QWZ Yahoo! Groups Links
[Repeater-Builder] Kenwood TKR-820 Repeater Programming
Just bought a Kenwood TK820 UHF repeater... Any suggestions on how to get it programmed for the ham 440 band? Local resources in Northern NJ. Program it myself? How do I go about doing this? Dave WB2FTX
[Repeater-Builder] Alcatel Isolator Panel * 148-164 Mhz
For those of us who missed the boat or bid on the lower frequency Alcatel Isolator Panels on E-Bay, I see the seller has more at a higher operating frequency 148-164. My question to Skipp and others who are familiar with these is: For those of us who have Ham Transmitters in the 147 MHz 2-meter Band, are these close enough to work? Also mare they tunable or fixed for the entire range? Thanks in advance for the guidance. 73 JIM KA2AJH
[Repeater-Builder] PL vs. DPL
Sorry if this isnt the best place to post this... Is there a benefit to using a DPL vs a PL? I am putting a repeater together and thought I would try and get some input... Thanks! Jason
Re: [Repeater-Builder] PL vs. DPL
Depends on what you are trying to accomplish. If your intent is to try to somewhat restrict users, DPL would help accomplish this. Many potential users wouldn't try encoding DPL if they were attempting to find your tone. Some might, but most would probably just give up and move on. At least that's my take. Chuck WB2EDV - Original Message - From: j crowe...@yahoo.com To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 03, 2009 1:07 PM Subject: [Repeater-Builder] PL vs. DPL Sorry if this isnt the best place to post this... Is there a benefit to using a DPL vs a PL? I am putting a repeater together and thought I would try and get some input... Thanks! Jason
[Repeater-Builder] Zetron 45B Interconnect PDF
Hello All I have in my possession a Zetron 45B user manual PDF I would like to see posted on the repeater builder web site to whom would I send it Thanks Ed Flipsen Manager OnionLake Network Services edw...@onionlake.ca 306 344 5283Network Services 306 344 5287Fax 780 847 2200Band Office The views and opinions of this author are not to be misconstrued, used in any covert operation or guaranteed to work any longer than it took you to read this. No warranty is implied or issued.
RE: [Repeater-Builder] PL vs. DPL
The set of frequencies that we just got done installing for our local commercial machine fall into the commercial pool of business band. I ran DPL on the repeater as to not have anyone that doesn't belong on the machine and the new system as several people (I never found out who) thought it was nice to be able to harass our staff when we were running PL on the old system. Peter Summerhawk -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of AJ Sent: Tuesday, March 03, 2009 12:41 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] PL vs. DPL The lack of a harsh squelch tailis usually one of the benefits (as opposed to PL Reverse Burst)... But locally, at least in the Amateur realm, it's been implemented ONLY to prevent access by the general Amateur community... On Tue, Mar 3, 2009 at 12:37 PM, Chuck Kelsey wb2...@roadrunner. mailto:wb2...@roadrunner.com com wrote: Depends on what you are trying to accomplish. If your intent is to try to somewhat restrict users, DPL would help accomplish this. Many potential users wouldn't try encoding DPL if they were attempting to find your tone. Some might, but most would probably just give up and move on. At least that's my take. Chuck WB2EDV - Original Message - From: j crowe...@yahoo. mailto:crowenus%40yahoo.com com To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Sent: Tuesday, March 03, 2009 1:07 PM Subject: [Repeater-Builder] PL vs. DPL Sorry if this isnt the best place to post this... Is there a benefit to using a DPL vs a PL? I am putting a repeater together and thought I would try and get some input... Thanks! Jason
[Repeater-Builder] Re: manual needed
Hi all, Does anybody have a spare hard copy manual for a MOT VHF MCS2000 that they would sell ? Thanks in advance, Mike KB5FLX m.dietr...@peoplepc.com
[Repeater-Builder] exec I vs exec II
Anyone have a short version of the differences between an exec I station and an exec II station? Are the innards swappable? Thanks for your time. Chris Kb0wlf
Re: [Repeater-Builder] exec I vs exec II
Basically the name and the general form factor are the only similarities. The hardware is completely different. 2 different generations of design. Nothing interchangeable except the microphone and that is only on some of them. Later mics on exec II were different Doug At 05:06 PM 3/3/2009, you wrote: Anyone have a short version of the differences between an exec I station and an exec II station? Are the innards swappable? Thanks for your time. Chris Kb0wlf
RE: [Repeater-Builder] exec I vs exec II
I think the exec I had a tube final RX was solid state looks nothing like an exec II so I would say no. tom [Original Message] From: Chris Curtis demo...@rollanet.org To: Repeater-Builder@yahoogroups.com Date: 3/3/2009 5:06:57 PM Subject: [Repeater-Builder] exec I vs exec II Anyone have a short version of the differences between an exec I station and an exec II station? Are the innards swappable? Thanks for your time. Chris Kb0wlf Yahoo! Groups Links
RE: [Repeater-Builder] exec I vs exec II
Thanks for all the responses. Chris Kb0wlf -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Thomas Oliver Sent: Tuesday, March 03, 2009 4:29 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] exec I vs exec II I think the exec I had a tube final RX was solid state looks nothing like an exec II so I would say no. tom [Original Message] From: Chris Curtis demo...@rollanet.org To: Repeater-Builder@yahoogroups.com Date: 3/3/2009 5:06:57 PM Subject: [Repeater-Builder] exec I vs exec II Anyone have a short version of the differences between an exec I station and an exec II station? Are the innards swappable? Thanks for your time. Chris Kb0wlf Yahoo! Groups Links Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.237 / Virus Database: 270.11.5/1979 - Release Date: 03/03/09 07:25:00
Re: [Repeater-Builder] exec I vs exec II
Correct.The exec 1 had totally different innardsthe exec II is similar to the Mastr II The exec 1 had three tubes8106, x 2and 7984 PA John VE3AMZ - Original Message - From: Thomas Oliver tsoli...@tir.com To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 03, 2009 5:29 PM Subject: RE: [Repeater-Builder] exec I vs exec II I think the exec I had a tube final RX was solid state looks nothing like an exec II so I would say no. tom [Original Message] From: Chris Curtis demo...@rollanet.org To: Repeater-Builder@yahoogroups.com Date: 3/3/2009 5:06:57 PM Subject: [Repeater-Builder] exec I vs exec II Anyone have a short version of the differences between an exec I station and an exec II station? Are the innards swappable? Thanks for your time. Chris Kb0wlf Yahoo! Groups Links Yahoo! Groups Links
Re: [Repeater-Builder] exec I vs exec II
The MASTR Exec (1) came in two flavors (at least here in Canada), the Exec with a tube final and the Royal Exec with a solid state final. The receivers in both cases was very similar. The receivers are very sensitive and also quite tough. I saw one where the input trace on the circuit board had evaporated due to an arc (from induced lightning) to the case 1/8 inch away. Jumpered the trace and the RX sensitivity came back to normal. BTW the Exec receiver makes a very good 220 receiver. The majority of 220 repeaters here in the Montreal area use them. Burt VE2BMQ John J. Riddell wrote: Correct.The exec 1 had totally different innardsthe exec II is similar to the Mastr II The exec 1 had three tubes8106, x 2and 7984 PA John VE3AMZ - Original Message - From: Thomas Oliver tsoli...@tir.com To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 03, 2009 5:29 PM Subject: RE: [Repeater-Builder] exec I vs exec II I think the exec I had a tube final RX was solid state looks nothing like an exec II so I would say no. tom [Original Message] From: Chris Curtis demo...@rollanet.org To: Repeater-Builder@yahoogroups.com Date: 3/3/2009 5:06:57 PM Subject: [Repeater-Builder] exec I vs exec II Anyone have a short version of the differences between an exec I station and an exec II station? Are the innards swappable? Thanks for your time. Chris Kb0wlf Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links
[Repeater-Builder] Which Motorola Mobiles Do 29 MHz?
I'm familiar with which radios will do 444 MHz and 146 MHz. But what about 29 MHz? Low split Maxtrac? M208? CDM1250? Only interested in programmable multi-channel models. Randy
RE: [Repeater-Builder] PL vs. DPL
Jason, The upside to using DPL (CDCSS) for repeater access is that few, if any, wannabe users will be able to get in- IF you encode a different code (DPL or PL) than you decode. If your repeater passes through the incoming code to the output, you have already given the hackers the clues that they need. Simple repeaters that encode the same code that they decode are child's play to figure out. The downside to using DPL is that the turnoff code of 134.4 Hz is the same for ALL CDCSS codes, meaning that another user on the same RF frequency who has a different DPL code will mute YOUR frequency as well, when he unkeys. A lot of community repeater operators who thought DPL was a great idea for shared-channel security, learned the hard way! 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of j Sent: Tuesday, March 03, 2009 10:08 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] PL vs. DPL Sorry if this isnt the best place to post this... Is there a benefit to using a DPL vs a PL? I am putting a repeater together and thought I would try and get some input... Thanks! Jason
Re: [Repeater-Builder] Which Motorola Mobiles Do 29 MHz?
Syntor X9000, Maratrac (low split) -- John Smokey Behr Gleichweit FF1/EMT, CCNA, MCSE IPN-CAL023 N6FOG UP Fresno Sub MP183.5 ECV1852 List Owner x10, Moderator x9 CA-OES 51-507 http://smokeybehr.blogspot.com http://www.myspace.com/smokeybehr - Original Message From: ran...@farmtel.net ran...@farmtel.net To: Repeater-Builder@yahoogroups.com Sent: Tuesday, March 3, 2009 6:53:01 PM Subject: [Repeater-Builder] Which Motorola Mobiles Do 29 MHz? I'm familiar with which radios will do 444 MHz and 146 MHz. But what about 29 MHz? Low split Maxtrac? M208? CDM1250? Only interested in programmable multi-channel models. Randy Yahoo! Groups Links
RE: [Repeater-Builder] Alcatel Isolator Panel * 148-164 Mhz
Jim, Some manufacturer's catalogs for ferrite isolators are misleading. When any manufacturer states that his model xxx is available for 136-174 MHz (for example), it does NOT mean that you can field-tune that product to operate anywhere within the 136-174 MHz band. It is not often clearly stated that the firm can MAKE an isolator to operate on a fixed frequency within the 136-174 MHz range, but once made, that isolator has a very narrow field-tuning range of perhaps 3 or 4 MHz. I wish I had a nickel for every Ham who bought a ferrite isolator that was manufactured to operate at a commercial frequency, but found that it would not work at all in the 2m band. Despite what some folks allege, a ferrite isolator must normally be remanufactured to move its operating frequency more than a few MHz. A case in point: A local radio club was donated a mint-condition Sinclair dual isolator that was tuned to 162.5125 MHz. Such an isolator costs about $550 new. The club shipped the unit to Sinclair for a factory rebuild to operate at a 147 MHz frequency. It cost about $250 for this work, but the modified unit worked perfectly at the 2m frequency, and it has a new-unit warranty. There is a lot of precision machining that is required to perform a rework; it is far more than a simple retuning. Anyone who tells you anything different is woefully misguided, and obviously knows nothing about how isolators are constructed! 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Jim Cicirello Sent: Tuesday, March 03, 2009 8:28 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Alcatel Isolator Panel * 148-164 Mhz For those of us who missed the boat or bid on the lower frequency Alcatel Isolator Panels on E-Bay, I see the seller has more at a higher operating frequency 148-164. My question to Skipp and others who are familiar with these is: For those of us who have Ham Transmitters in the 147 MHz 2-meter Band, are these close enough to work? Also mare they tunable or fixed for the entire range? Thanks in advance for the guidance. 73 JIM KA2AJH
RE: [Repeater-Builder] Re: RP-70U repeater not transmitting at full power
Are you measuring the power right at the TX connector, or are you measuring at the duplexer output (antenna) connector? The specified RF output of any transmitter is normally that measured at the output connector of the transmitter, not after the duplexer. 73, Eric Lemmon WB6FLY -Original Message- Aisen Lopez wrote: Hello, I've got a Standard RP-70U UHF repeater that is not transmitting at full capacity. The thing is supposed to have a max RX power of 15 watts. Yet, I plugged a power/swr meter and my dummy load, when I checked it was only putting out 7 watts. So I looked in the manual, found the adjustment points and tried to adjust for maximum power and it won't go over 8 to 8.5 watts of TX power. It doesn't seem to be having any problems with the duplexer. It just won't go over 8 watts. Could it be a failing TX transistor?. RX is fine and there are no other problems with the repeater, just the power issue. Any thoughts?
Re: [Repeater-Builder] exec I vs exec II
At 3/3/2009 15:54, you wrote: The MASTR Exec (1) came in two flavors (at least here in Canada), the Exec with a tube final and the Royal Exec with a solid state final. The receivers in both cases was very similar. The receivers are very sensitive and also quite tough. ...but rather prone to IMD. I had a VHF Exec I'd say the front-end had the dynamic range of a typical amateur grade mobile radio. IF bandwidth is also wider than the Mastr II. But yes they are more sensitive than a stock Mastr II. BTW the Exec receiver makes a very good 220 receiver. The majority of 220 repeaters here in the Montreal area use them. Makes sense - with no helicals to cut down they would make an easy conversion. Bob NO6B
RE: [Repeater-Builder] Alcatel Isolator Panel * 148-164 Mhz
At 3/3/2009 19:15, you wrote: Jim, Some manufacturer's catalogs for ferrite isolators are misleading. When any manufacturer states that his model xxx is available for 136-174 MHz (for example), it does NOT mean that you can field-tune that product to operate anywhere within the 136-174 MHz band. It is not often clearly stated that the firm can MAKE an isolator to operate on a fixed frequency within the 136-174 MHz range, but once made, that isolator has a very narrow field-tuning range of perhaps 3 or 4 MHz. They're a little wider than that. I have several isolators originally made for the 151-154 range that tuned down to 145 MHz quite nicely. UHF isolators made for 460-465 MHz typically tune down to 445 MHz with no problems. I wish I had a nickel for every Ham who bought a ferrite isolator that was manufactured to operate at a commercial frequency, but found that it would not work at all in the 2m band. Despite what some folks allege, a ferrite isolator must normally be remanufactured to move its operating frequency more than a few MHz. A case in point: A local radio club was donated a mint-condition Sinclair dual isolator that was tuned to 162.5125 MHz. Such an isolator costs about $550 new. The club shipped the unit to Sinclair for a factory rebuild to operate at a 147 MHz frequency. It cost about $250 for this work, but the modified unit worked perfectly at the 2m frequency, and it has a new-unit warranty. There is a lot of precision machining that is required to perform a rework; it is far more than a simple retuning. Anyone who tells you anything different is woefully misguided, and obviously knows nothing about how isolators are constructed! Well, there is such a thing as a wideband isolator. I once had one that covered the entire VHF HB with no tuning. They are typically much bigger than the tunable units, at least at VHF are probably more expensive, hence much rarer of a find. Bob NO6B
Re: [Repeater-Builder] Which Motorola Mobiles Do 29 MHz?
Just about any LBLS Motorola will except the CDMs and HT750/1250 series. Those units won't go a cycle out of their specified range. Joe M. ran...@farmtel.net wrote: I'm familiar with which radios will do 444 MHz and 146 MHz. But what about 29 MHz? Low split Maxtrac? M208? CDM1250? Only interested in programmable multi-channel models. Randy Yahoo! Groups Links
[Repeater-Builder] Mastr II station drawer covers
I am looking for a couple covers for the drawer unit on a mastr II station. Can anyone point me to where I might find one or two? please contact me off listlarry at n7fm - dot - com Larry - N7FM
