[Repeater-Builder] Re: Kendercom included an internal ACC Controller?
The repeater on eBay is mine. I tried to make it clear that back in the day of the late 80's that repeater with built in controller was competition for the ACC RC-850. It had everything built in like the DVR which was a huge $$ option. Even the RAM was a fortune back then. I put Kendecom for the make of repeater but I guess it should say Micro Control Specialties. Hope this clears up any confusion as to the controller inside the repeater. 73's Gary K2ACY --- In Repeater-Builder@yahoogroups.com, skipp025 skipp...@... wrote: Looking at the following Ebay auction: Kendercom Mark 4 CR VHF Repeater Voice Controller DVR Ebay Item number: 330296552120 I'm lead to believe this Kendercom was originally equipped with an ACC Controller (from the factory) or was the controller added by the owner after the purchase of the repeater? Any current or former Kendercom Owners out there able to tell the story? Thanks in advance for your replies. cheers, s.
[Repeater-Builder] Kendecom Mark 4 CR Controller Audio Low
I don't have documentation on the controller of this repeater. Does anyone know where the adjustment is to turn up the synthesized voice on this repeater. Any help would be greatly appreciated. If anyone has the hardware manual for the Mark 4 CR please let me know. Thanks 73's Gary K2ACY
[Repeater-Builder] MSF5000 UHF Analog Test Light On
Symptoms -- 1. Repeater working fine till this morning. 2. TX Lock RX Lock lights out. 3. Can't key transmitter with TX switch on Analog Controller. 4. Test light is solidly lit on controller. I checked all the fuses in the controller and power supply. All ok. I also reseated the UNI-Board. Any help would be appreciated. I don't have the test panel to plug into the analog controller. Thanks!! Gary K2ACY
[Repeater-Builder] Re: How to figure cable length for duplexer?
Does the amount of power output make a difference with isolation? The paperwork I got shows 82.3 isolation on RX and 81.5 on TX. It appears the printout was done from a spectrum analyzer when TESSCO tuned the duplexer. I am running 25 watts. 73's Gary K2ACY --- In Repeater-Builder@yahoogroups.com, wd8chl [EMAIL PROTECTED] wrote: Output frequency is 145.450 input is 144.850. How do I figure out what length the cables should be between the rx side and tx side that connect to the T-Connector? Thanks and 73's ! Gary K2ACY If the duplexer was supplied from Telewave on 2M, then what you have is right. LEAVE THEM ALONE! They just aren't that critical people!!! Even if it was originally on 150-160, it would still be fine!
[Repeater-Builder] How to figure cable length for duplexer?
Output frequency is 145.450 input is 144.850. How do I figure out what length the cables should be between the rx side and tx side that connect to the T-Connector? Thanks and 73's ! Gary K2ACY
[Repeater-Builder] Re: How to figure cable length for duplexer?
Jim, Thanks for the response. The duplexer is a Telewave TPRD1554. They are brand new and bought from Tessco tuned. The cable on the RX side is marked 11 in black marker on the connector and the TX side is marked 11 1/2 . Both cables terminate at the T. I just want to feel assured that they are the right length as I feel my performance should be much better and want to rule out the duplexer. Gary K2ACY --- In Repeater-Builder@yahoogroups.com, Jim Brown [EMAIL PROTECTED] wrote: What kind of duplexer is it? I have several older Sinclair 2 meter duplexers that were up in the 170 mHz range that I moved down to the ham band, and I had to replace each 10.5 inch cable that went from the can to the Tee with a cable 12.5 inches long. Turns out for those older models that piece of cable was part of the tuned circuit for adjusting the nulls. All duplexers are not made the same, so I think you need to be more specific. Interesting on the frequency you are using. We are just putting one on the same frequency here in central New Mexico - HI. 73 - Jim W5ZIT --- On Fri, 7/25/08, garyp609 [EMAIL PROTECTED] wrote: From: garyp609 [EMAIL PROTECTED] Subject: [Repeater-Builder] How to figure cable length for duplexer? To: Repeater-Builder@yahoogroups.com Date: Friday, July 25, 2008, 5:46 PM Output frequency is 145.450 input is 144.850. How do I figure out what length the cables should be between the rx side and tx side that connect to the T-Connector? Thanks and 73's ! Gary K2ACY Change settings via the Web (Yahoo! ID required) Change settings via email: Switch delivery to Daily Digest | Switch format to Traditional Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe Recent Activity 21 New Members Visit Your Group Share Photos Put your favorite photos and more online. Best of Y! Groups Check it out and nominate your group to be featured. Find helpful tips for Moderators on the Yahoo! Groups team blog. .
[Repeater-Builder] Re: How to figure cable length for duplexer?
What duplexer would you recommend? I was expecting better results. Is there a huge difference in 77db versus 100db isolation besides the price? Performance wise. Kinda wish I would have done my homework before buying the TPRD1554. Running 25 watts here. What is your duplexer of choice? Thanks 73's Gary --- In Repeater-Builder@yahoogroups.com, Ralph Mowery [EMAIL PROTECTED] wrote: --- On Fri, 7/25/08, garyp609 [EMAIL PROTECTED] wrote: From: garyp609 [EMAIL PROTECTED] Subject: [Repeater-Builder] Re: How to figure cable length for duplexer? To: Repeater-Builder@yahoogroups.com Date: Friday, July 25, 2008, 7:09 PM Jim, Thanks for the response. The duplexer is a Telewave TPRD1554. They are brand new and bought from Tessco tuned. The cable on the RX side is marked 11 in black marker on the connector and the TX side is marked 11 1/2 . Both cables terminate at the T. I just want to feel assured that they are the right length as I feel my performance should be much better and want to rule out the duplexer. Gary K2ACY It probably is the duplexer. The specified rejection is only 77db. Unless you are running very low power and have a rotten receiver, that is not enough isolation.
[Repeater-Builder] Re: How to figure cable length for duplexer?
Thanks for the info. I will call call Telewave for an education. The TPRD1454 shows 77db of isolation and a minimum of a 1 meg split. I am running .600 split here. 73's Gary K2ACY --- In Repeater-Builder@yahoogroups.com, Bob M. [EMAIL PROTECTED] wrote: Telewave is VERY responsive to e-mails and even phone calls. I've had technical questions about their duplexers on several occasions and have sent e-mail to their only public e-mail address. Usually I get a reply later the same day or first thing in the morning from a man named Ray Collins. Turns out he's the president of Telewave and very nice to converse with. Highly recommended. I will offer this, however. Celwave (and possibly other manufacturers) seem to have cut lists which specify the lengths of coax you need between cavities and from the last cavity to the TEE connector. Telewave doesn't seem to have them; I've asked in the past and I'm always told they make each cable set on the shop floor when the unit is attached to expensive analysis equipment, starting with some known (but un-publicized) length, just to get it close, then they trim to fit until the unit performs as they want it to. In actuality, they may have a bunch of cables all made in various lengths by 1/4 inch increments, then select the right ones to get the desired performance. You probably wanted a TPRD1454 unit, if they make one, as that would have the right cable lengths and configuration for the 2 meter band. Bob M. == --- On Fri, 7/25/08, garyp609 [EMAIL PROTECTED] wrote: From: garyp609 [EMAIL PROTECTED] Subject: [Repeater-Builder] Re: How to figure cable length for duplexer? To: Repeater-Builder@yahoogroups.com Date: Friday, July 25, 2008, 7:09 PM Jim, Thanks for the response. The duplexer is a Telewave TPRD1554. They are brand new and bought from Tessco tuned. The cable on the RX side is marked 11 in black marker on the connector and the TX side is marked 11 1/2 . Both cables terminate at the T. I just want to feel assured that they are the right length as I feel my performance should be much better and want to rule out the duplexer. Gary K2ACY --- In Repeater-Builder@yahoogroups.com, Jim Brown w5zit@ wrote: What kind of duplexer is it? I have several older Sinclair 2 meter duplexers that were up in the 170 mHz range that I moved down to the ham band, and I had to replace each 10.5 inch cable that went from the can to the Tee with a cable 12.5 inches long. Turns out for those older models that piece of cable was part of the tuned circuit for adjusting the nulls. All duplexers are not made the same, so I think you need to be more specific. Interesting on the frequency you are using. We are just putting one on the same frequency here in central New Mexico - HI. 73 - Jim W5ZIT --- On Fri, 7/25/08, garyp609 gary.paul@ wrote: From: garyp609 gary.paul@ Subject: [Repeater-Builder] How to figure cable length for duplexer? To: Repeater-Builder@yahoogroups.com Date: Friday, July 25, 2008, 5:46 PM Output frequency is 145.450 input is 144.850. How do I figure out what length the cables should be between the rx side and tx side that connect to the T-Connector? Thanks and 73's ! Gary K2ACY
[Repeater-Builder] Re: How to figure cable length for duplexer?
Bob, Point well taken and thank you. If I were to change the seperation to 1mhz and get the duplexer retuned would that provide enough isolation? I guess my question is will the duplexers work ok with a different band split? Thanks, Gary K2ACY --- In Repeater-Builder@yahoogroups.com, Bob M. [EMAIL PROTECTED] wrote: As someone else mentioned, 77dB is nowhere near enough isolation, especially at 600 kHz spacing. You need at least 90dB with double- shielded coax between the duplexer and radios. As with so many other things in life, more is better. This also translates to more bucks. You may need a six-cavity duplexer, depending on the design, to get that kind of isolation, especially with that spacing. One more cavity on each side could give you enough isolation, but with a bit more insertion loss. I think you should have done some reading, homework, and question- asking before buying that duplexer. Bob M. == --- On Fri, 7/25/08, garyp609 [EMAIL PROTECTED] wrote: From: garyp609 [EMAIL PROTECTED] Subject: [Repeater-Builder] Re: How to figure cable length for duplexer? To: Repeater-Builder@yahoogroups.com Date: Friday, July 25, 2008, 8:12 PM Thanks for the info. I will call call Telewave for an education. The TPRD1454 shows 77db of isolation and a minimum of a 1 meg split. I am running .600 split here. 73's Gary K2ACY --- In Repeater-Builder@yahoogroups.com, Bob M. msf5kguru@ wrote: Telewave is VERY responsive to e-mails and even phone calls. I've had technical questions about their duplexers on several occasions and have sent e-mail to their only public e-mail address. Usually I get a reply later the same day or first thing in the morning from a man named Ray Collins. Turns out he's the president of Telewave and very nice to converse with. Highly recommended. I will offer this, however. Celwave (and possibly other manufacturers) seem to have cut lists which specify the lengths of coax you need between cavities and from the last cavity to the TEE connector. Telewave doesn't seem to have them; I've asked in the past and I'm always told they make each cable set on the shop floor when the unit is attached to expensive analysis equipment, starting with some known (but un-publicized) length, just to get it close, then they trim to fit until the unit performs as they want it to. In actuality, they may have a bunch of cables all made in various lengths by 1/4 inch increments, then select the right ones to get the desired performance. You probably wanted a TPRD1454 unit, if they make one, as that would have the right cable lengths and configuration for the 2 meter band. Bob M. == --- On Fri, 7/25/08, garyp609 gary.paul@ wrote: From: garyp609 gary.paul@ Subject: [Repeater-Builder] Re: How to figure cable length for duplexer? To: Repeater-Builder@yahoogroups.com Date: Friday, July 25, 2008, 7:09 PM Jim, Thanks for the response. The duplexer is a Telewave TPRD1554. They are brand new and bought from Tessco tuned. The cable on the RX side is marked 11 in black marker on the connector and the TX side is marked 11 1/2 . Both cables terminate at the T. I just want to feel assured that they are the right length as I feel my performance should be much better and want to rule out the duplexer. Gary K2ACY --- In Repeater-Builder@yahoogroups.com, Jim Brown w5zit@ wrote: What kind of duplexer is it? I have several older Sinclair 2 meter duplexers that were up in the 170 mHz range that I moved down to the ham band, and I had to replace each 10.5 inch cable that went from the can to the Tee with a cable 12.5 inches long. Turns out for those older models that piece of cable was part of the tuned circuit for adjusting the nulls. All duplexers are not made the same, so I think you need to be more specific. Interesting on the frequency you are using. We are just putting one on the same frequency here in central New Mexico - HI. 73 - Jim W5ZIT --- On Fri, 7/25/08, garyp609 gary.paul@ wrote: From: garyp609 gary.paul@ Subject: [Repeater-Builder] How to figure cable length for duplexer? To: Repeater-Builder@yahoogroups.com Date: Friday, July 25, 2008, 5:46 PM Output frequency is 145.450 input is 144.850. How do I figure out what length the cables should be between the rx side and tx side that connect to the T-Connector? Thanks and 73's ! Gary K2ACY
[Repeater-Builder] MSF5000 Uniboard Needed
I am looking for a uniboard that snaps into the RF deck. I was having a problem with my repeater being off frequency on the receive side by 6khz. Upon inspection and testing of the repeater at the site by pressing on the uniboard the receive lines up and works fine. There is probably a bad cap or solder joint I was told. If anyone knows where I can get another uniboard please let me know. I was told in another post to clean the connections between the uniboard and the RF deck and it didn't fix the problem. I have narrowed it down to the uniboard so any help in locating one would be apppreciated. Thanks 73's Gary K2ACY
[Repeater-Builder] MSF5000 UHF Analog Receive Adjustment
My MSF5000 RX has drifted about 4khz up. Is there an easy way to adjust it back down to the desired RX frequency? Thanks 73's Gary K2ACY
[Repeater-Builder] Re: MSF5000 UHF Analog Receive Adjustment
Thanks for the response. At this point it is just the RX that is off 4khz. There is no adjustment for the RX only? Thanks again for the quick reply 73's. Gary K2ACY --- In Repeater-Builder@yahoogroups.com, Bob M. [EMAIL PROTECTED] wrote: 1. If the transmit frequency is also off by 4 kHz, then you should adjust the 14.4 MHz oscillator via the hole in the front or top of the RF tray. 2. If it's just the receiver, I would suspect the 2nd oscillator crystal, but it's not adjustable. 3. Could be a dirty connector between the Uniboard and interconnect board in the RF tray, or between the control tray and interconnect board. 4. I'd suspect your measuring equipment and try some other stuff before tweaking the MSF. Bob M. == --- On Sun, 7/6/08, garyp609 [EMAIL PROTECTED] wrote: From: garyp609 [EMAIL PROTECTED] Subject: [Repeater-Builder] MSF5000 UHF Analog Receive Adjustment To: Repeater-Builder@yahoogroups.com Date: Sunday, July 6, 2008, 6:07 PM My MSF5000 RX has drifted about 4khz up. Is there an easy way to adjust it back down to the desired RX frequency? Thanks 73's Gary K2ACY
[Repeater-Builder] Frequency Change do I retune duplexer?
If a repeater was on 447.575 and the frequency was changed to 447.5625 would the duplexers need to be re-tuned? Thanks 73's Gary K2ACY
[Repeater-Builder] Re: Frequency Change do I retune duplexer?
I have a TX/RX Vari-Notch duplexer. Would the same thing apply to no re-tuning? --- In Repeater-Builder@yahoogroups.com, Steve Bosshard (NU5D) [EMAIL PROTECTED] wrote: Most band pass / band reject will be plenty wide - I measured over 200 Khz on a Wacom 678 that I use with 3 UHF close spaced combined trunking repeaters (some minor loss). I don't believe re-tuning will be needed. Steve NU5D garyp609 wrote: If a repeater was on 447.575 and the frequency was changed to 447.5625 would the duplexers need to be re-tuned? Thanks 73's Gary K2ACY
[Repeater-Builder] Obtaining a Repeater Site (HOW)
I hope this isn't off topic but I am hoping that someone can help. I am trying to secure a site for our repeater club in the Atlantic City, NJ area. Does anyone have any pointers on how to obtain a site. I have been getting a run around from most of the casinos and tower locations in the city. Nobody seems even remotely interested in giving us access. I showed and told them about the benefits of Ham Radio and the service we provide but it falls on deaf ears. Any help, suggestions or connections would be appreciated. 73's Gary K2ACY
