[Repeater-Builder] Re: TKR-750 New PA Schematic
Hi Gareth, Try Here http://www.repeater-builder.com/kenwood/tkr-750k-svc-man.pdf 73 Bernie Parker K5BP --- In Repeater-Builder@yahoogroups.com, Gareth Bennett [EMAIL PROTECTED] wrote: Hi Group, Does anybody have an electronic copy of the new (Replacement) Power Amplifier for the TKR-750 that they could pass along? I'm having to swap out a failed early unit with a later retro board and discovered an extra 620pF chip capacitor supplied separately. Any ideas? All the best and thanks for reading _ Gareth Bennett This e-mail is confidential, if you received this message in error, or you are not the intended recipient, please return it to the sender and destroy any copies. Thank you.
[Repeater-Builder] Re: Current Draw of MSF 5000 UHFF 5000 UHF
Dear Andrew, Sorry for the delay but I hope this helps. Its not for the MSF but rather it's close cousin, a hundred watt UHF MSR2000 (same power supply). I recently had the occasion to build a 12 hour UPS which required my assessment of watts usage versus RF watts out. Listed below are my findings. Watts Recieve CDX = 70 TX 10W =218 TX 20W =269 TX 30W =321 TX 40W =354 TX 50W =404 TX 60W =430 TX 70W =480 TX 80W =512 TX 90W =549 TX 100W =567 BRIAN
Re: [Repeater-Builder] New 900 MHz machine
In a message dated 11/15/2007 12:16:03 P.M. Eastern Standard Time, [EMAIL PROTECTED] writes: have finally completed construction on my 927.5250 repeater. Where is it? Chris N9LLO ** See what's new at http://www.aol.com
Re: [Repeater-Builder] New 900 MHz machine
Would you be interested in a 900 MHz. MASTRII and/or four Motorola mobiles? At 11:15 AM 11/15/2007, you wrote: I know I posted this to the AR902Mhz group, but Im not sure whether I posted this here also... If not, I apologize. I have finally completed construction on my 927.5250 repeater. Components consist of: * Glenayre GL-Line paging station cabinet, power supply, and PA Heat Sink / cooling fan * Motorola 800 MaxTrac receiver (converted to 902) * Motorola GTX transmitter/exciter * Communications Specialists TP-3200 controller panel * Custom-built isolator / duplexer (from Jeff DePolo) * Motorola STF2520A 150W Paging Power Amplifier (isolator removed and re-mounted on the Glenayre heat sink) * Decibel BD586-Y omni antenna (6 dBd) * Andrew LDF4-50 feedline (approx. 50 ft.) This repeater makes right at 100W output to the antenna. Photos of the station during construction and as a finished product have been posted at the groups site. I want to thank everyone who assisted me with the construction of this station from technical information to parts, moral support, etc... I certainly couldnt have done it without al of your help! I also want to publicly thank Ryan K9ZOE for providing me with the use of his 900 repeater station on my pair until I could complete this project. The repeater is currently planned for deployment tomorrow weather permitting. (Or should I say, come hell or high water...) 73 and thanks again! Mark N9WYS Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] Radio Gear For Sale: http://www.people.vanderbilt.edu/~robin.midgett/index.htm
RE: [Repeater-Builder] New 900 MHz machine
Chris, It is in Joliet, IL. Exact location: Atop the Joshua Arms senior living center; Rowell Ave about 1/10 mile north of US 52. Coordinates: 41-29-59N / 088-03-44W There is currently a repeater in operation there (on my pair) owned by K9ZOE, but mine will most likely be placed on the air tomorrow. BTW - PL is 151.4 73 de Mark - N9WYS _ From: Repeater-Builder@yahoogroups.com On Behalf Of [EMAIL PROTECTED] In a message dated 11/15/2007 12:16:03 P.M. Eastern Standard Time, [EMAIL PROTECTED] writes: have finally completed construction on my 927.5250 repeater. Where is it? Chris N9LLO
[Repeater-Builder] SpectraTac ACM squelch mod
Working on a spectratac package for a link receiver that will always have way more than enough signal and got to thinking. I know I have run across mods to defeat the fast gate mode and run in insanely long squelch tail mode permanently. Old IMTS systems come to mind. Has anyone ever done the opposite? I would like to inhibit the weak signal slow gate and hard wire it into fast gate only. I would like to do this in timing only and not make the squelch circuit tight. Any ideas? td wb6mie
[Repeater-Builder] Re: SpectraTac ACM squelch mod
Re: SpectraTac ACM squelch mod You have the more modern standard Spectra-Tac or the earlier A-B tone version? Are you talking about the squelch circuit at the receiver or the logi on the Signal Quality Moudle(s) back at the voter shelf? s. tony dinkel [EMAIL PROTECTED] wrote: Working on a spectratac package for a link receiver that will always have way more than enough signal and got to thinking. I know I have run across mods to defeat the fast gate mode and run in insanely long squelch tail mode permanently. Old IMTS systems come to mind. Has anyone ever done the opposite? I would like to inhibit the weak signal slow gate and hard wire it into fast gate only. I would like to do this in timing only and not make the squelch circuit tight. Any ideas? td wb6mie
[Repeater-Builder] Re: Astron Power Supply
Joe [EMAIL PROTECTED] wrote: You may have to be careful of the overvoltage protection device if you go too high, I don't remember what it fires at. Depends on the version of the regulator board... sometimes it even fires when you don't want it to. I turned the voltage up on my VS-50M Astron to overcome the voltage drop in the Rigblaster PRWgate PG40 that I use between the power supply and battery. I float the battery at 13.8VDC. I've had no problem for a couple of years so far. The VS-50M is basically the RM-50M with the voltage adjustment on the front panel. 73, Joe, k1ike The only beef with the Astron VS Series Supplies is how they don't like to properly power up into some heavy current loads. Sometimes you need to insert a current limiter in series with the load to get the VS to come up with a heavy load already in place. A high current step-start circuit of sorts... cheers, s. Bernie, My RS35 has a pot for setting the output voltage on the main, only, control board. 73, ron, n9ee/r From: dallasreact112 [EMAIL PROTECTED] mailto:dallasreact112%40yahoo.com Date: 2007/11/13 Tue PM 11:38:46 CST To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Astron Power Supply Has any one had experience with setting output voltage on an Astron RM-50M power supply? I'd like to bump up the voltage to 14.4 V to override a diode junction loss in a battery isolator. Does it have the room to be adjusted up? Thanks Bernie Parker K5BP Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
RE: [Repeater-Builder] TKR-750 New PA Schematic
Gareth, The Service Manual for the old Kenwood TKR-750 Repeaters, those with serial numbers below 6071, is B51-8556-10, currently priced at $22.40. The Service Manual for the new TKR-750 version, with serial numbers above 6071, is B51-8556-20, currently priced at $32.67. Both manuals are available from Pacific Coast Parts, www.pacparts.com 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Gareth Bennett Sent: Wednesday, November 14, 2007 10:34 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] TKR-750 New PA Schematic Hi Group, Does anybody have an electronic copy of the new (Replacement) Power Amplifier for the TKR-750 that they could pass along? I'm having to swap out a failed early unit with a later retro board and discovered an extra 620pF chip capacitor supplied separately. Any ideas? All the best and thanks for reading _ Gareth Bennett
[Repeater-Builder] need a New uhf ham split mastr II PA
i have been told to find my club a new uhf pa for there 440 repeater i told tham working pull or spair thay told me newi box see you at the fort wayne ham fest this staterday or sunday ken kb9yku
