[Repeater-Builder] TKB or TKR-720 on 220 Mhz band
Hi I received a new KPT-50 programmer for the Kenwood TKR-720 and 820, and TKB-720 and 820 radios. The manual for it indicates that the 720 series of radios can be programmed from 130 MHz up to 230 MHz. I wondered if anyone has programmed and retuned one of these radio to operate on the 222 MHz band? I wondered how well the receiver worked and how much RF power was output? Thanks Byron NJ7J Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Kenwood Tk-722 parts
Hi David Thanks for the offer but the TK-722 is a totally different radio. It is a mobile radio and the TKB-720 radio I am looking for a controller for is a Base station radio. It is about 6 inches high 15 inches deep and 14 inches wide and weighs About 30 pounds because in includes a AC power supply for the 50 watts output. The controller board is about 6 inches by 12 inches with one corner notched out. Thanks for thinking of me. Byron Date: Mon, 23 Jan 2006 21:53:59 - From: David Little [EMAIL PROTECTED] Subject: Kenwood TK-722R Parts I know someone had mentioned a need for components from a Kenwood TK 722R (or something like that) repeater. I have parts from what I believe to be that configuration. The whole setup got scrapped out for the power supply, and I managed to salvage the RF Deck which seems to have 2 separate PA units, but only one coax connector, the COR board, and what may be a controller board. Transceiver/RF Deck: TK-722R FCCID: ALH9TKTK-722R-1 Seems complete. PA Bricks: M57706 and M67731 COR Board: SSC, Model 823 T-A2-1702-0 Has two 6 terminal - terminal blocks, 11 pin header, Relay, Tran and Recv vertical trim pots.. Controller Board?: X52-3080-20 J25-6546-02 This board has 6 switch dipswitch bank labeled TONE FREQ Trim Pot TONE DEV 4 pin header CN2 12 pin header CN1 LSI SMT Device MN6520 Sorry for the lack of knowledge and poor descriptions. I will not be needing this, and could use a entry level controller or CWID board for a repeater project using a VHF Engineering 2m repeater that I want to donate to an adjacent county for Skywarn access by the NOAA station that polls regional repeaters for spotter info. David KD4NUE Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] RE: Kenwood TKB-720 CPU failure
Hi Coy Would you please advise me how to do a reset of a Kenwood TKB-720. I am not familiar with how to do it. Thanks Byron __ Date: Sat, 07 Jan 2006 03:08:18 - From: Coy Hilton [EMAIL PROTECTED] Subject: Re: Kenwood TKB-720 CPU failure DId you try a full reset of the radio...that might help. I would try it before replacing it. [EMAIL PROTECTED] wrote: Hi All I have a TKB-720 base VHF radio. I have apparently killed the CPU. It was working fine and I added a wire to bring the unfiltered audio to the rear panel connector. I added the wire on the control board. But it is murphy's day today. This is the most serious of several things that have gone wrong today. I accidently connected the audio line to the +12 volt line. After the mod the radio appeared to work (because all the displays were working) but I had no audio to the speaker. I opened it back up and discovered my mistake but not before the display quit working. It appears that the CPU has died. (no channel selection, nor is radio on the default frequecy also no there is no channel display.) I checked the power to the CPU it is still good. The audio works fine now (unsquelched noise comes throught speaker) The control board is a Kenwood number x54-3070-10. Does anyone have a spare board or a spare CPU chip? Thanks Byron NJ7J Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] TKR-820 Timeout Timer Problem - Frustrating!
Hi It sound like you do not have pin #1 in the external connector grounded. It disables the internal controller functions when using an external connector. I have an almost identical setup (TKR-820 and Cat 300) and do not have the problem you mentioned. But I do not have the manuals only the technical info that is on the web. Byron NJ7J Date: Wed, 9 Nov 2005 21:23:26 -0600 From: N9WYS [EMAIL PROTECTED] Subject: TKR-820 Timeout Timer Problem - Frustrating! Before you all banish me to the outer reaches of Mongolia - or somewhere else - because of all the questions I keep posing about this machine, please understand that I have tried to research this issue in the technical material I have available to me and I keep coming up empty. This is why I keep prodding. I know there is quite a wealth of knowledge here, so I'm trying to tap into some of that knowledge. That being said, here's the latest on this frustrating issue. I have a TKR-820 interfaced with a CAT-300 repeater controller. The CAT-300 operates fine, whether the internal controller is turned ON or OFF. The only issue I have is with the internal timeout timer. Previously, the repeater would shut itself down after 2-1/2 minutes when the internal controller circuitry was turned OFF. (REPEAT button OFF) The external controller was set for a much longer time, so I knew it wasn't the CAT-300 causing the problem. I went to the site a few days ago, and adjusted the TOT pot on the internal controller to its maximum (5 min). I then made certain that the external controller's TOT was set shorter (4 min) than the internal one - worked just fine. (So I thought.) I departed. Apparently, I departed prematurely. (No jokes here, OK? Hehehehe) Anyway, this evening I heard two stations using the repeater and at 5 minutes the repeater dropped. DAMN!! I went back out to the repeater site to trouble check some more. I found that if I unplug the external controller and have the internal REPEAT function turned ON, the internal controller controls the machine - I expected this. (Not what I want!) If I unplug the external controller and have the REPEAT function turned OFF, the repeater does not repeat - plug the controller back in, and the repeater works. (This IS what I want!) However, if I don't turn the REPEAT function ON, the repeater times itself out way too soon - I presume that this is because of the INTERNAL timeout timer. So, how do I totally disable the internal timeout timer? It is becoming more apparent that the timeout timer functions in two ways - the first, as a repeater timeout timer (of course); but secondly, as a stuck mic timeout timer when the radio is in base station configuration (simplex operation). This has really frustrated me, and now I'm on a quest to figure out just how to shut that damned internal timeout timer off once and for all. Any suggestions?? Can I just unplug the internal controller board altogether? Mark - N9WYS Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] RE:Kenwood TKB-720 CTCSS tone input location
Skipp Thanks for the suggestion. I am not using the Kenwood TKR 720 repeater. The TKB 720 is a base radio not a repeater. I have it being used with at TKR 820 repeater and the rear pinouts are similar but different. Pin 3 on the TKB is wired for the BCD control signal. I was hoping that someone with the schematic/manual for the TKB 720 could identify the location inside the radio to inject the CTCSS tone that is like where the TKR repeater pin 3 connects. Thanks for the help. Byron _ Date: Wed, 10 Aug 2005 15:14:07 - From: skipp025 [EMAIL PROTECTED] Subject: Re: RE:Kenwood TKB-720 CTCSS tone input location I posted the information direct from a copy of the tkr repeater manual. You appear to have the plug rewired. If you have space on the plug, add a pin for one of the bcd signals. If you're currently using pin 5 for audio, swap it with what your doing on pin 3. The original pin 3 function is wide band, the original pin 5 function is restricted. Use the wide band input. Or bring the bcd lines out at a different location. good luck, skipp Hellewell, Byron [EMAIL PROTECTED] wrote: Hi Skipp I have pin 3 being used as one of the 4 bcd signals to select which channel(1-16) is being used. Thanks though. Byron Date: Tue, 09 Aug 2005 18:29:29 - From: skipp025 [EMAIL PROTECTED] Subject: Re: Kenwood TKB-720 CTCSS tone input location Accessory Connector Pin 3 is the DI Modulation input (both signaling and audio). Pin 2 is the Line mod inpug Ground GND. Pin 5 is the Line input, modulation input. good luck... skipp www.radiowrench.com Hellewell, Byron [EMAIL PROTECTED] wrote: Hi Can anyone help me with the physical location of where to inject a variable CTCSS tone into the Kenwood TKB-720 radio. I do not have the schematic or manual just the connector pinout. So a good description would help. I tried adding it to the audio being sent to the audio input pin in the accessory connector but it must be filtered as the tone does not get thru. The repeater version (TKR-720) has another audio input pin but that pin is used for frequency selection in the TKB-720. Thanks Byron Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] RE:Kenwood TKB-720 CTCSS tone input location
Hi Skipp I have pin 3 being used as one of the 4 bcd signals to select which channel(1-16) is being used. Thanks though. Byron Date: Tue, 09 Aug 2005 18:29:29 - From: skipp025 [EMAIL PROTECTED] Subject: Re: Kenwood TKB-720 CTCSS tone input location Accessory Connector Pin 3 is the DI Modulation input (both signaling and audio). Pin 2 is the Line mod inpug Ground GND. Pin 5 is the Line input, modulation input. good luck... skipp www.radiowrench.com Hellewell, Byron [EMAIL PROTECTED] wrote: Hi Can anyone help me with the physical location of where to inject a variable CTCSS tone into the Kenwood TKB-720 radio. I do not have the schematic or manual just the connector pinout. So a good description would help. I tried adding it to the audio being sent to the audio input pin in the accessory connector but it must be filtered as the tone does not get thru. The repeater version (TKR-720) has another audio input pin but that pin is used for frequency selection in the TKB-720. Thanks Byron Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Kenwood TKB-720 CTCSS tone input location
Hi Can anyone help me with the physical location of where to inject a variable CTCSS tone into the Kenwood TKB-720 radio. I do not have the schematic or manual just the connector pinout. So a good description would help. I tried adding it to the audio being sent to the audio input pin in the accessory connector but it must be filtered as the tone does not get thru. The repeater version (TKR-720) has another audio input pin but that pin is used for frequency selection in the TKB-720. Thanks Byron Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] RE: GLB Channelizer manual
Hi All I have sent out many copies of the manual. I had no idea there were so many still in use. Some people requested one but their email bounced. Mike Morris WA6ILQ said that he would put it on www.repeater-builder.com on the Other Manufacturers page. So if you did not get it via email from me look there. 73 Byron NJ7J Date: Thu, 7 Jul 2005 08:26:13 -0600 From: Hellewell, Byron [EMAIL PROTECTED] Subject: GLB Channelizer manual Hi I have copied a GLB 300A Channelizer (synthesizer) kit manual to a PDF file. The manual is for the building the kit but also contains trouble shooting information. If any one is interested in a copy, please email me direct. Be aware that it is a large file (10 Mb). Byron NJ7J Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] GLB Channelizer manual
Hi I have copied a GLB 300A Channelizer (synthesizer) kit manual to a PDF file. The manual is for the building the kit but also contains trouble shooting information. If any one is interested in a copy, please email me direct. Be aware that it is a large file (10 Mb). Byron NJ7J Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Mountain top upside down antenna mounting info
Hi I am doing some planning for an VHF repeater on the top of a 9000 foot high mountain top. The coverage is to the valley floor about 4000 feet below the repeater site. To get good valley coverage I have been contemplating using a 1/4 or 5/8 wave antenna mounted upside down. I am looking for suggestions from those who have had experience with upside down antennas. I know about the radome sealing problems and lightning protection. The antenna will also be subject to high winds and ice loading. Wondered about shadowing of the mounting structure in the pattern. Thanks for the help Byron Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
