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Re: Filter recommendation for DC fan motor interference to echo Link.
The problem is your fan of course. I looked and can't find my information on it, but someone on here will probably have it. Panasonic make a line of fans that won't make electrical noise. I have fans
By Teton Amateur Radio Repeater Association (TARRA) · #214856 ·
Re: TKR-850 No Receive
PacParts sells the molex plug with the bumper wire. Les Keegan?N4LPK?
By Les Keegan · #214855 ·
Re: Help with out of range programming a Motorola GP300
"If the radio has the proper range . . ." Then there is no need to do anything but program it as you normally would. What he is trying to do is program some radios that are NOT in the proper range.
By Teton Amateur Radio Repeater Association (TARRA) · #214854 ·
Filter recommendation for DC fan motor interference to echo Link.
Hi everyone, I just installed a small DC fan to cool my Link radio and notice when echo Link is active I get a wine on the signal going into the controller for my echo link. Don't get this when
By Chad Nelson · #214853 ·
Re: PD526 Duplexer Tuning
I ditto that. Every 526 I have tuned was done by individually tuning each cavity as per the instructions (there's more than one version of that) and then re-connect and each has been right on the
By George Csahanin · #214852 ·
Re: Help with out of range programming a Motorola GP300
Howdy, If the radio has the proper range just hold down o the shift key while typing in the frequency but let off the shift key when typing the middle decimal. The press shift again when you type in
By Freddie Mac-KD5FMU · #214851 ·
Re: TKR-850 No Receive
The TKR-850/851 voltage regulator “failures” are most often attributable to a design problem I tracked down a number of years ago after having two TKR-850’s intermittently lose audio (of course,
By Jeff DePolo WN3A · #214850 ·
Re: TKR-850 No Receive
The Service Manual is on RB. The rear panel 15 pin Molex connector is for attaching an external (KES-4, etc) speaker. If the supplied jumpered male Molex is missing, the previous user had an external
By Joel W6BQD · #214849 ·
Re: PD526 Duplexer Tuning
They came off other PD526’s; how close the factory made them to 11.5”, and how accurately you can measure them after having been deformed by the tight bend radius on a 526, I can’t say. But I
By Jeff DePolo WN3A · #214848 ·
Re: PD526 Duplexer Tuning
It's only capable of 1024 points max. I think everything else I can set to your specs.
By Part 15 Engineer · #214847 ·
Re: PD526 Duplexer Tuning
I measured the cable lengths and it's rg214 and it's approx 11.5 in for jumpers but they might be a hair over 11.5 inches. I'm not sure how critical the length is or how exact it must
By Part 15 Engineer · #214846 ·
Re: PD526 Duplexer Tuning
You got the cables from me, and they are decidedly the correct cables. The four 11.5” cables go between cavities, the 12” cables go to the triple-female tee that I sent. It has to be something
By Jeff DePolo WN3A · #214845 ·
Re: TKR-850 No Receive
Something I posted back in 2018 on another board Plug a local mic in and see if it will key up and send audio / tone.. If it keys up with no audio then Check IC 628 on the front board for 5VDC, it
By Jerry Dorf N0FWG · #214844 ·
Re: TKR-850 No Receive
OK Mike, I see you already had replies about the audio jumper on the big molex connector. It has been a couple of years since I had to program one but make sure you exit program mode before you test,
By mike@ni4m.com · #214843 ·
Re: TKR-850 No Receive
Just in case you are not a vet with the 850, is there a molex plug in the connector under the transmit coax connector? On my Kenwoods it has to be there with 2 pins jumpered for the speaker to work.
By mike@ni4m.com · #214842 ·
Re: PD526 Duplexer Tuning
The first two plots are typical of each individual cavity. In this case the high side. The second two are with the two coupling loops in line on the 3 high side cavities minus the coupling tee. So I'm
By Part 15 Engineer · #214841 ·
Re: TKR-850 No Receive
<-- What is the exact model of this 850, is it a version 1 or version 2 repeater? - reason for asking is that there was a design issue with earlier V1's (floating inputs on the DSP chip), which caused
By Ramesh Dhami &#92;(VA3UV&#92;) · #214840 ·
Re: Help with out of range programming a Motorola GP300
Oops, yes typo.? Should have been 433... I'm trying to get them programmed to local Amateur repeartes in the 441 to 444 MHz receive range with 446-449 matching 5 MHz offset TX. ron KA3JIJ
By Ron · #214839 ·
Re: TKR-850 No Receive
"The antennas that the repeater and my base station are connected to are literally right next to each other, so there should be no problems at all." That may have been the problem. May have blown the
By Teton Amateur Radio Repeater Association (TARRA) · #214838 ·
Re: TKR-850 No Receive
On Sat, Apr 26, 2025 at 11:38 PM, Ramesh Dhami \(VA3UV\) wrote: > > On 2025-04-26 11:33 p.m., Mike Sullivan via groups.io wrote: > >> Got a TKR-850 that was abandoned at a tower site.. powers on
By Mike Sullivan · #214837 ·