<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Very impressive! Can you share your fiber type and link-loss?<br class=""><div class="">
<div style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none; color: rgb(0, 0, 0);" class=""><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div class="">—L.B.</div><div class=""><br class=""></div><div class="">Lady Benjamin PD Cannon, ASCE</div><div class="">6x7 Networks & 6x7 Telecom, LLC </div><div class="">CEO </div><div class=""><a href="mailto:ben@6by7.net" class="">ben@6by7.net</a></div><div class="">"The only fully end-to-end encrypted global telecommunications company in the world.”</div><div class="">FCC License KJ6FJJ</div></div></div><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none; color: rgb(0, 0, 0);"><br class="Apple-interchange-newline"><span></span></span><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none; caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"></span><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none; caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"></span><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none; caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"></span><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none; caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"></span><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none; caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"></span><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;"></span><span><img apple-inline="yes" id="03C79862-0C65-415D-AC5B-71DD90390407" src="cid:245ADEA1-477E-4B5A-989E-9177BDB798AE" class=""></span><span><img apple-inline="yes" id="D56A0C5F-CC1D-4900-9979-C63EACFBF044" src="cid:B186E2C6-EE26-4B99-A6BD-F71BFE6B78F4" class=""></span>
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<div><br class=""><blockquote type="cite" class=""><div class="">On Oct 30, 2020, at 9:03 AM, Tarko Tikan <<a href="mailto:tarko@lanparty.ee" class="">tarko@lanparty.ee</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">hey,<br class=""><br class=""><blockquote type="cite" class="">If it’s just a single 100G channel needed you could try 100GBASE-ZR4. Specified for 80km, 30db power budget they could actually reach more the 80km.<br class="">Dispersion should also be „no" problem in the 1310nm length. I have to say that I never tried this on 100km distance without coherent solutions.<br class=""></blockquote><br class="">Just to add to my original suggestion, we just did 100G-ZR4 over 30dB link with pre-FEC BER 3.174E-11.<br class=""><br class="">As OP is asking for a solution for 25dB I don't see any reason why ZR4 would not work and why you would need coherent, amplifiers or any other additional solution except when you are limited by QSFP28 SFF power.<br class=""><br class="">-- <br class="">tarko<br class=""></div></div></blockquote></div><br class=""></body></html>