I've recently had a new phone line and 80/20 FTTC service fitted (IDnet) and I am querying the FTTC sync speed of the line.
The DSL checker prediction stats (full snippet attached):
High Low High Low
VDSL Range A (Clean) 80 59.9 20 19 53.4 Available -- -- Yes --
VDSL Range B (Impacted) 77.6 54.1 20 16 40.3 Available -- -- Yes --
A few years ago I had PlusNet FTTC and synced at ~78/20 speeds back to the same ECI cabinet using an ECI Openreach modem / PlusNet Technicolor tg582n router combo. The predicted speed ranges were a reflection of what I had before (as far as I can recall) and were what I had expected on the new service (looking at the clean range for reasons below).
On the date of the phone line install, I provided the Openreach engineer a brand new 350m roll of 0.9mm BT Dropwire 12 - CW1406 spec.
https://www.btcables.com/documents/CW1406-Dropwire-12.pdf. I had purchased this for two reasons; 1) our property is served by overhead power lines on the same telegraph poles and 2) the other drop wire serving the property has a few joints in it due to tree rub damage (and also runs to the opposite side of the property with another phone and FTTC service - running ~60/20).
The new line was installed from the property back to the DP pole at the edge of the road covering approx. ~125m. From the DP back to the cabinet is another ~180m (line traced using google maps - snippet attached) making an approx. line length of ~300m rounding up. Finally the fibre port was connected a few days after (was supposed to be a simultaneous provide but original engineer turned up was from MJ Quinn's and couldn't work with the overhead power lines - this was passed on by myself to IDnet in turn to Openreach).
Anyway, onto the connection stats. Full connection stats from DSLstats attached, snippet below:adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 1
Last initialization procedure status: 0
Max: Upstream rate = 11726 Kbps, Downstream rate = 56972 Kbps
Bearer: 0, Upstream rate = 12093 Kbps, Downstream rate = 56169 Kbps
Link Power State: L0
Mode: VDSL2 Annex B
VDSL2 Profile: Profile 17a
TPS-TC: PTM Mode(0x0)
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 5.9 6.1
Attn(dB): 13.3 0.0
Pwr(dBm): 1.2 1.2
As you can see, I'm synced at the bottom end of the Impacted range for Download and below that for the Upload speed. This has surprised me based on the new spec drop wire cable and my historical connection through PlusNet (and even comparing my upload to the other FTTC service on the other drop wire syncing at 20 compared to my 12).
I'm not sure what to think as it shouldn't be a fault (at least on the line from the DP to the house), might be crosstalk with the other FTTC service (though again not on the last ~125m drop wire span) or even crosstalk back at the ECI cabinet with more connections over the last few years.
**Edit**
Re-uploaded DSLstats as file was empty, woops
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