The only thing you have to worry about with shorter cables is the
reflection. In some instances with dirty connector at just the right
connector you can get reflection back in to the transmitter that can
cause errors, the tx to shut down or premature failure. This is very
uncommon with LR 10G a
So far every time we've used the OTDR it's been accurate within 1 foot.
On Tue, Aug 27, 2024 at 12:55 PM Trey Scarborough wrote:
> The only thing you have to worry about with shorter cables is the
> reflection. In some instances with dirty connector at just the right
> connector you can get refl
Hey Josh,
What cheap Chinese OTDRs are you using? I'm in the market.
On Tue, Aug 27, 2024 at 2:31 PM Josh Luthman
wrote:
> So far every time we've used the OTDR it's been accurate within 1 foot.
>
> On Tue, Aug 27, 2024 at 12:55 PM Trey Scarborough wrote:
>
>> The only thing you have to worry
Wow, sometimes looking for gopher damager over 20 miles I have been off a mile.
From: Josh Luthman
Sent: Tuesday, August 27, 2024 1:30 PM
To: AnimalFarm Microwave Users Group
Subject: Re: [AFMUG] fiber patch cables
So far every time we've used the OTDR it's been accurate within 1 foot.
On
Yeah, I was gonna say, the OTDR might give you a perfect fiber distance, but
accounting for the built-in twist and the slack loops complicates matters.
From: AF On Behalf Of ch...@go-mtc.com
Sent: Tuesday, August 27, 2024 3:47 PM
To: AnimalFarm Microwave Users Group
Subject: Re: [AFMUG]
This is the latest purchase:
https://www.amazon.com/gp/product/B0CW3B9ZM8/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
On Tue, Aug 27, 2024 at 3:43 PM Carl Peterson
wrote:
> Hey Josh,
>
> What cheap Chinese OTDRs are you using? I'm in the market.
>
> On Tue, Aug 27, 2024 at 2:31 PM Josh Luth
A mile?! IDK how that's possible. Every time we turn a new splitter on
the sequentials and OTDR are within a few feet - we lose a couple of feet
in butt splices and our sequentials end up wrong. Every new reel gets
tested on delivery and it's right on.
When we had a broken fiber (ants) it was r
We use 3GIS and document the sequentials (footage in/footage out) and then
tack on 50 or 26 feet for slack (midspan, butt).
On Tue, Aug 27, 2024 at 3:55 PM wrote:
> Yeah, I was gonna say, the OTDR might give you a perfect fiber distance,
> but accounting for the built-in twist and the slack loop
When you have spans up to 50-75 miles at times, you have to use longer high
power pulses. There is a lot of variability in velocity of propagation, earth
temperature, splice slack loops, fiber twist. 1 mile error over 50 miles is
only 2%. You can easily be off by several thousand feet. You c
I don't see how you have a 50 mile span. Even if you get 80k reels that's
15 miles.
On Tue, Aug 27, 2024 at 5:19 PM wrote:
> When you have spans up to 50-75 miles at times, you have to use longer
> high power pulses. There is a lot of variability in velocity of
> propagation, earth temperature
Doesn’t 80 km = 50 miles?
And can’t you splice? How far can you go with LR optics?
From: AF On Behalf Of Josh Luthman
Sent: Tuesday, August 27, 2024 4:51 PM
To: AnimalFarm Microwave Users Group
Subject: Re: [AFMUG] fiber patch cables
I don't see how you have a 50 mile span. Even if
Magical device called a fusion splicer. Our reels were typically 33,000’
From: Josh Luthman
Sent: Tuesday, August 27, 2024 3:51 PM
To: AnimalFarm Microwave Users Group
Subject: Re: [AFMUG] fiber patch cables
I don't see how you have a 50 mile span. Even if you get 80k reels that's 15
miles.
Sorry, I read 80k as km not kft.
From: AF On Behalf Of ch...@go-mtc.com
Sent: Tuesday, August 27, 2024 5:26 PM
To: AnimalFarm Microwave Users Group
Subject: Re: [AFMUG] fiber patch cables
Magical device called a fusion splicer. Our reels were typically 33,000’
From: Josh Luthman
80,000 feet reels.
If you splice it, you will see an event in your OTDR.
On Tue, Aug 27, 2024 at 6:23 PM Ken Hohhof wrote:
> Doesn’t 80 km = 50 miles?
>
>
>
> And can’t you splice? How far can you go with LR optics?
>
>
>
> *From:* AF *On Behalf Of *Josh Luthman
> *Sent:* Tuesday, August 27,
Don't you document where your splices are? If you see your splices every
33k and see it's broken 1 mile from the last splice it should be pretty
obvious, no?
On Tue, Aug 27, 2024 at 6:26 PM wrote:
> Magical device called a fusion splicer. Our reels were typically 33,000’
>
>
> *From:* Josh Lut
We use EXFO otdr's on some spans that are 160km and we can get it down to
the metre.
On Tue, Aug 27, 2024 at 7:07 PM Josh Luthman
wrote:
> Don't you document where your splices are? If you see your splices every
> 33k and see it's broken 1 mile from the last splice it should be pretty
> obvious
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