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Oz Jon

Interesting - your Metfone speed is almost exactly what I get at home in Melbourne, (in a middle city suburb), with my ADSL2+ connection.

 

That's all abut to change as connection to the new national broadband network (NBN white elephant) is made compulsory.

Well, actually,  you have a choice - pay several hundred dollars for new equipment and a new NBN line connection - or - pay through the nose for phone/internet connection via the cellphone network! - or do without!

 

Ah! - progress! - it's unstoppable!

--------------------------------------

Getting back to your Cootel/farm arrangement - is that 5.4Mbps download figure for the old (current?)  Cootel tower location? or for the new tower location?

5Mbps download is a pretty acceptable performance for most many people's needs. And 16dB of antenna gain will probably boost that nicely if it's not limited by the electronics.

 

Cheers

 

 

Edited by Oz Jon
trying "strike-out" and backing off a bit! ... both worked!

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Parrothead

Already sent these to @Oz Jon via PM. But, I will post them here as well. The first was via the Speedtest.net website. The second and third, via the speedtest APP I downloaded for my desktop, here at the farm. 

 

Screenshot 2018-05-21 14.37.45.png

 

Screenshot 2018-05-21 14.45.18.png

 

Screenshot 2018-05-21 14.47.35.png

 

Honestly, I don't know how much better it may perform, with a yagi antenna. But, I am seriously considering buying one, to replace the omnidirectional antenna I currently am using to transmit / receive the 4G signal. But, I will say one thing, for sure. It is performing better with Cootel transmitting from the new tower, than it was from the old one. 

 

 

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syzmic

The speed probably won't change much when switching to a yagi antenna, but the signal strength should improve quite a bit, so the reliability will improve.  The weather won't bother you as much.

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Parrothead
4 hours ago, syzmic said:

The speed probably won't change much when switching to a yagi antenna, but the signal strength should improve quite a bit, so the reliability will improve.  The weather won't bother you as much.

 

Yeah. Rain killing my signal is a definite concern, especially considering how strong the monsoon rains can get here. That will be the real test, regarding the signal strength. But, I was thinking about the quality of the signal achieved by a yagi, over an omni. 

 

I will say, thus far anyway, I am impressed with the constant 4 bars (full strength) the modem has, since powering it up. Before, when Cootel was on the other tower, it would bounce back and forth between 3 and 4 bars.

 

Curiosity is getting the better of me, though. I am going to go in the morning and see if I can find that "new" tower. 

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Oz Jon
9 hours ago, Parrothead said:

 

.......................

Curiosity is getting the better of me, though. I am going to go in the morning and see if I can find that "new" tower. 

 

 If you can estimate the antenna height above ground level at the new tower site and figure out the lat & long of that tower, I'll run a new path profile and figure out optimum antenna height at the farm.

As Syzmic says, a 16dbi yagi will certainly improve the signal strength and the fading performance ($150 worth of improvement? - that's a judgement call).

The data speed depends on other factors too, so it may not get much faster.

Whatever, higher signal level will be a good thing.

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syzmic

Quality of the signal is a strange concept when it comes to a digital source.  In the "digital world ", it's either a one or a zero.  Not much room for any quality variation there.  It either is, or is not.  (Yoda?)

 

Once you have met the minimum signal strength for a  good connection, increasing said signal strength won't make the transmitted data any "better."

 

If it was me, I would go with the yagi antenna.  I think reliability is important, especially considering some of these summer "showers" can last all day...

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Parrothead
6 hours ago, Oz Jon said:

($150 worth of improvement? - that's a judgement call)

 

I have to admit, for me anyway, it is often more about convenience or comfort, rather than whether or not it is a good value. 


Oz Jon, I have a local Khmer "watering hole" I go to sometimes, while here at the farm. I will go there just before noon today, I imagine. After, I will trek and see if I can locate this mysterious tower. See? If I had a yagi already installed, I would know what bearing it would be from the farm. :D 

 

5 hours ago, syzmic said:

If it was me, I would go with the yagi antenna.  I think reliability is important, especially considering some of these summer "showers" can last all day...

 

Agreed. And, knowing how fierce the rains can be here, I can only imagine how much they may dampen the signal, even at 5 or 6 kilometers transmission distance. That is also my weakest link. I already have two forms of backup power, plus mains. Adding a yagi antenna would be the best move regarding my internet access.

 

 

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Parrothead

@syzmic, are you a radio operator, electrical engineer, or in a similar industry?

 

It's great to see another person who is on our wave length here, eh @Oz Jon? :rofl:

 

I gave up a perfect opportunity to be a professional comedian, ya know. :D

 

 

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syzmic

I have been into electronics since the '50s.  I started working for my father in his TV repair shop and studied electrical engineering in college.  Everything was vacuum tubes back then, in the dark ages.  I had my own TV repair business later on.  I've installed hundreds of antennas and worked with distribution systems also. I'm amazed by how electronics has changed since I first started playing with it.  This digital stuff is mind blowing ...  I've built computers from scratch, hacked the software as well as the hardware.  It's all been fun.

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Oz Jon
3 hours ago, Parrothead said:

@syzmic, are you a radio operator, electrical engineer, or in a similar industry?

 

It's great to see another person who is on our wave length here, eh @Oz Jon? :rofl:

 

I gave up a perfect opportunity to be a professional comedian, ya know. :D

 

 

 

Yes, it seems that Syzmic knows a thing or 2 about radio - welcome to our almost-exclusive RFCambodia club Syzmic.

 

He is right that you probably won't get much (even any?) improvement in data speed - you may get a little bit, but certainly will get much better immunity from ground refection or heavy-rain drop-outs, with a higher gain and better pattern yagi.

 

As for your other opportunity - don't give up your day job of project management from a hammock -Lol!

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