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I have a GMRS repeater at 200ft above a valley floor on the edge of a steep hill. There are mountains surrounding the valley a good 2,500ft higher than my repeater. My repeater saturates the valley to

I live across a valley from a ski mountain.? My house is ~300' above the valley floor on the edge of a steep hill.? Top of the ski mountain is ~3000' above the valley floor.? Cell phone coverage on

Hey Jeremy, do you still have the Rangr? Is it ready to go on 50MHz FM ? We're trying to setup some local links for packet but I'd love to get a 50Mhz repeater online. -- ae5tc

Ye of little faith…….. ? Matt AL0R Sent: Thursday, March 6, 2025 07:59 To: [email protected] Subject: Re: [repeater-builder] running autopatch Yeah I was thinking the same

Yeah I was thinking the same thing. That'd be a hell of a try to put a RJ11 connector on RG11! ? Oh well typos happen.. Chris WB5ITT [email protected]> wrote:

https://www.eeweb.com/555-timer-delay-off-circuit-diagram/ -- The Real RFI-EMI-GUY

<---What's the Insertion loss, and then the Return Loss at the pass frequency? What instrument are you using for the tuning (and did you go through a calibration to net out cable losses, etc)? Did

Thanks for the tuning information.? I'll admit that most of this is new to me so I'm still a little lost, but slowly figuring it out and reading everything I can find. I've tried rotating the

I have located a "new" spool of FSJ4-75, 2000', in SoCal. I have not personally inspected it, however, the pics I've seen show it still with the corrugated cover on the spool. It is stored upright and

VHF Engineering used a similar COR board .? ?While not hardware so to speak I would look at the ARDUINO repeater control software. Ralph ku4pt

On 2025-03-05 3:11 p.m., Ramesh Dhami &#92;(VA3UV&#92;) wrote: > On 2025-03-05 12:06 p.m., David Cameron - IRLP via groups.io wrote: >> I use a similar method that I find a little more accurate for

On 2025-03-05 12:06 p.m., David Cameron - IRLP via groups.io wrote: > I use a similar method that I find a little more accurate for setting > the loops. It's very hard to set the pass for 1db IL

For tail timer for repeater using 555 build as regular timer circuit with timing for like 3 sec or what you need and with transistor driven by COS ground pin 6 of 555 (transistor collector to pin 6,

Hamtronics was a US based company that designed and built repeater circuitry in modules and made it available in kit form or assembled and tested. Here are all of the manuals for this equipment

I did one years ago with a 555 driving a 4093 Schmidt trigger with a RC circuit to handle hang time...it's easy .. I don't have the schematic here with me right now but I can post it later Chris

I use a similar method that I find a little more accurate for setting the loops. It's very hard to set the pass for 1db IL accurately. I use this method to build VHF duplexer a from anywhere from 4 to

I will try that. When searching for some info about the topic it appeared me but I was in a hurry and did not let some time to know how it works. So that I asked here for a solution. Even that, I

+11dBm output is no stingy signal at 12.6 mW into 50 ohms. ? It's too bad these can't be directly FM modulated, because you could likely avoid the multiplier sections of a common crystal exciter /

I would venture pin assignments.? ?I have been avoiding using pin 4 as cor. Instead leave it blank tie pins 4 and 10 together and use as ignition sence. Than use pins 8 and 12 for cor. And pl

Here's something to consider: https://www.repeater-builder.com/projects/hang-timer.html Kevin