CrowdSupport®
Highlighted
Level 2: Rookie

External antenna

Hi , have a telstra smart modem running on  adsl with download at 0.7 mbs and upload 0.2 mbs , been like this always , apparently because we are 10 kms from exchange.Modem is meant to switch to mobile tower when internet is poor , however we have poor mobile reception , probably about 4-5 km from closest tower.Semi rural area , so pretty sure would be lte 28.After recommendations on an antenna and any fittings , cables , lightning arrestor etc if anyone can help.

Cheers.

Was this helpful?

  • Yes it was, thank you
  • No, I still need help
11 REPLIES 11
Highlighted
Level 23: Superhero
Level 23: Superhero

Re: External antenna

The smart modem one switches over to the 4G network for an outage or line fault. A speed fault won't cause the 4G backup to take over.
For Official Support Chat Now, try the Online Troubleshooter, check for Outages or Raise a Complaint.

Full Disclosure as part of Telstras Social Media Code.
  • I work for Telstra in the following products.
  • Telstra Platinum, Telstra Business Services, Telstra Smart Home, Velocity, Locator and NBN faults.
  • I'm not here in an official capacity, I just like fixing things and respond in my own time when I can.
  • Include "@343GuiltySpark" in your reply to get my attention if you're after me specifically.
  • My opinions are my own and not that of Telstra's, just so we're all on the same page.
Highlighted
Level 2: Rookie

Re: External antenna

Thanks @343GuiltySpark , guess im stuck with buffering then.

Highlighted
Level 21: Augmented
Level 21: Augmented

Re: External antenna


@Tuc wrote:

Hi , have a telstra smart modem running on  adsl with download at 0.7 mbs and upload 0.2 mbs , been like this always , apparently because we are 10 kms from exchange.Modem is meant to switch to mobile tower when internet is poor , however we have poor mobile reception , probably about 4-5 km from closest tower.Semi rural area , so pretty sure would be lte 28.After recommendations on an antenna and any fittings , cables , lightning arrestor etc if anyone can help.

Cheers.


@Tuc Can you post your full modem stats so we can see if what you are getting is correct?

 

Clearly, especially with ADSL, issues are not just related to the distance, but also things like the quality of the line, etc.

 

The stats will look something like this (Found in your modem settings/broadband) ...

 

DSL Status Up
DSL Uptime 18 hours 28 minutes 9 seconds
DSL Type VDSL2
DSL Mode Fast
Maximum Line rate 20.03 Mbps 35.43 Mbps
Line Rate 19.99 Mbps 34.39 Mbps
Data Transferred 321.46 MBytes 1485.85 MBytes
Output Power 8.8 dBm 12.1 dBm
Line Attenuation 5.7, 33.9, 53.9 dB 15.8, 44.1, 67.8 dB
Noise Margin 6.3 dB 6.7 dB

Someone keeps putting vegetables in my beer crisper
Highlighted
Level 2: Rookie

Re: External antenna

Here you are Ozmos , 

Highlighted
Level 24: Supreme Being
Level 24: Supreme Being

Re: External antenna

Theoretically a downstream attenuation of 63 db puts you about 4.5 Km from the exchange and you should have a link speed of 2.1 Mbps. Your noise margin is double the normal noise margin and that would account for some of the difference between theoretical speed and actual speed. The noise margin is usually increased when there is a problem with dropouts. Could your post your line stats located on the DSL diagnostics tab. Also check if the DSL bit loading graph at bottom of DSL diagnostics graph has any areas like image below. The DSL bit loading should gradually decrease as the number of the tone increases. Any dips troughs indicate a fault.

 

Bit Loading Graph 38 Mbps

 

Highlighted
Level 2: Rookie

Re: External antenna

Cf4 , 

Highlighted
Level 2: Rookie

Re: External antenna

Graph also   

8 █████ ███ █ 7 █████████████ ██ █ 6 █ ███████████████ ███████████ █ 5 ██ ██████ █ ███████████████ ███████████████ █ 4 ██████████████ ███████████████ ███████████████ ███████ 3 ██████████████████ ███████████████ ███████████████ ████████ █ 2 ███████████████████████ ███████████████████████████████ ███████████████ 1 ███████████████████████ ███████████████████████████████ ███████████████ 0000000245645555554454333322220006678888878887782776676666665565044444543232222200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | | | | | | | | | | | | | | | | 0

Highlighted
Level 24: Supreme Being
Level 24: Supreme Being

Re: External antenna

The stats look Ok,

 

Can't really tell anything from the bit loading graph. The bit loading graph needs to be uploaded to post as an image instead of inserted as text. Only the first bit of the graph is visible, to see the hole graph you need to scroll right.

 

As an example of what to look for. First graph shows a section of the graph of a link with a fault. The second graph shows the same section after fault was fixed.

 

Bit Loading Graph 38 Mbps

 

Bit Loading Graph 49 Mbps (Bridge Tap removed)

Highlighted
Level 2: Rookie

Re: External antenna

Thanks cf4 , there are gaps in the graph that go down to zero .

 

Level 24: Supreme Being
Level 24: Supreme Being

Re: External antenna

You do get several tones where the bit loading goes to zero. A fault is usually indicated when you get a dip in the bit loading over several tones. There are some examples of bit loading graphs on a DSL link with a fault and DSL links with no faults at the site below. 

 

https://www.dslreports.com/forum/r26390557-What-does-a-healthy-bit-loading-graph-look-like

 

Have you always had these low speeds?

Highlighted
Level 1: Cadet

Re: External antenna

I also run a telstra coverage unit as we have very weak signal where we live. I used to run the unit with no antenna and went from one bar of reception to sometimes 2 bars. The speed was almost like riding a dinosaur so I bought a Yaggi Antenna and a long metal pope to mount it. I then plugged that into the Coverage unit and rotated it until I had the best signal.  It took a few tries and we now get full reception with this setup. The closest tower is over 7klm away from us but a Yaggi antenna is an awesome tool for gathering signal. The only issue I sometimes have now is that the service on occasion is slow regardless of signal and this lead me to believe that The Telstra transmitters run out of bandwidth at certain times of day and this makes everything run slow.  I dont believe Telstra will spend much money to fix these issue now though as the focus is going to be on short range local 5G transmitters. 

1Co 14:38 But if any man be ignorant, let him be ignorant.

Set it & forget it

With direct debit there’s no need to give paying your bill another thought.

Avoid queuing up and never worry about late fees again.

Setup direct debit