VHF Cavities and other 220 combining available.... plus MORE
This is a "For What its Worth" post, but maybe it will have some interest.
I hope posting this here does not violate any group rules, but it seems like the appropriate audience.
I am clearing out
By
bbfmrf
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#214432
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Re: TDR for power line
I've used TDR to find fault on small JKT(telephone wire) to underground
tech cable (10-3)
The velocity can be anywhere between 50 to 90 % Make sure there is no
remaining power connected to any of the
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Pierre Martel
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#214431
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Re: Suggestions for service monitor
Steve, I have RSP Spectrum Analyzer made for the RSP line of inexpensive SDR receivers and while it works well and is cute, its just a toy. Alignment of repeaters which I take as tuning the receiver
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Mike
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#214430
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Re: TDR for power line
Not for high voltage, but for fire alarm cabling on utility poles.
I had a Riser Bond TDR that I used for fault location.? A long time ago I was asked to find a fault in a municipal cable that was
By
Joe
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#214429
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Re: Possibly Quintron PA? Need help identifying transistors
Quintron made a lot of equipment for the 72-75Mhz linking band for paging.
Joe, K1ike
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Joe
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#214428
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Re: MTR2000 channel steering
Mornin' John,
In the MTR2000, the GPIO pins on J5, the 96-pin System Connector only connect to J1 and J2, the Option slots in the cardcage.? The System Controller is at J3.? To use those pins
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Dave WA1JHK
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#214427
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Re: 6 m repeater antenna
Attached is some information on the DB212 antennas. Perhaps this will help.
This was factory info from a DB212-2 that was tuned to 47.14 MHz.
73
Joe WB4HIS
Sent: Tuesday, April 8, 2025
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Joe Poerschke
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#214426
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Re: 6 m repeater antenna
?
By
Roger willey
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#214425
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Re: 6 m repeater antenna
On Apr 7, 2025, at 5:55?PM, wgwl via groups.io <wgwl@...> wrote:
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Roger,
In hopes of answering your original question, I got my hands on a DB212-2 originally on 37.7MHz and
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Roger willey
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#214424
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Re: 6 m repeater antenna
On Apr 7, 2025, at 5:55?PM, wgwl via groups.io <wgwl@...> wrote:
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Roger,
In hopes of answering your original question, I got my hands on a DB212-2 originally on 37.7MHz and
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Roger willey
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#214423
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Re: Possibly Quintron PA? Need help identifying transistors
It definitely looks like a Quintron constructed board.? The white label with the writing on it looks like how they identified boards. The date code may be 1989?? I think that was before they were
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Joe
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#214422
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Re: Possibly Quintron PA? Need help identifying transistors
Anything with an SRF part number is usually a special-production or binned version of a regular MRF part, but rarely were cross-references (if they existed) published. That said, given the amount of
By
Jeff DePolo WN3A
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#214421
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Re: MTR2000 channel steering
Chris,
I'm trying to program channel steering in the RSS using GPIO pins on the 96-pin connector without any optional cards. That section of the RSS isn't very straightforward to me.
73
-de "Curly"
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john ni0k
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#214420
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Re: Suggestions for service monitor
The Motorola 2600 series is hard to beat... And can be found reasonably
priced if you are patient.
[email protected]> wrote:
By
Kevin Berlen
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#214419
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Re: Suggestions for service monitor
Mike,
This is a Windows program, but I think it's a lot of what you want and you can choose the hardware SATSAGEN ( https://www.albfer.com/en/2020/02/21/satsagen-2/ )
Steve N4IRS
By
Steve N4IRS
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#214418
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Re: Possibly Quintron PA? Need help identifying transistors
Good idea! Thanks!
WZ5TX
David “Tyler” Bufkin
________________________________
Sent: Tuesday, April 8, 2025 5:54:35 AM
To: [email protected] <[email protected]>
Subject: Re:
By
Tyler- WZ5TX
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#214417
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Re: Possibly Quintron PA? Need help identifying transistors
Well here's an idea, put 12 volts to it, put a service monitor or signal
generator into it, broadband watt meter on the output and sweep it and see
where you get a peak in RF out driving it with say
By
Chris Boone WB5ITT
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#214416
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Re: Possibly Quintron PA? Need help identifying transistors
Here is a pic of the only numbers I see on the board.
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Tyler- WZ5TX
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#214415
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kyodo kg510
does anyone have a programming lead for a kyodo kg510 or schematic of one
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Ian Wells
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#214414
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Re: Suggestions for service monitor
Third.
Bob NO6B
By
Bob Dengler
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#214413
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