Category Archives: Telecommunications

Project: Record a K56flex Dial-Up Modem Connection

Inspired by my previous post made merely an hour ago, I set to work seeing if I could acquire a recording of a K56flex dial-up modem connection before it is too late. After all, both X2 and K56flex are more … Continue reading

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Project: Record a US Robotics “X2” Dial-Up Modem Connection

Throughout the long history of dial-up modems, higher connection speeds were always desired, but limitations in signal processing techniques and the phone lines themselves meant that achievable rates were always going to be limited. At various stages in time, the … Continue reading

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Note: Choosing 5Ghz Wi-Fi Channels for 802.11ac in AU

As society has moved towards ever smaller and more mobile devices, Wi-Fi has become an essential connectivity standard which we rely upon in our daily lives. It was initially made popular in the home by the availability of affordable, standardised … Continue reading

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Analysis: DVB-T2 Australian Television Networks Test Transmission

As I’ve been quite busy lately with work and job hunting, I really haven’t had much time to watch TV or look at the signals on the air. In fact, I’ve not had enough time even to look at Twitter, … Continue reading

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Challenge: Send a Fax Without a Landline or Fixed-Line Internet

A week ago, a friend approached me about sending off a fax. Despite the march of technology, this particular form had to either be mailed back (taking a few days and costing a decent amount of money) or faxed. My … Continue reading

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Review, Teardown: TBS 5220SE Universal TV Tuner USB Box

Recently, I embarked on an adventure to scan the C-band satellites in the sky. Unfortunately for me, my TBS 6925 tuners are both rather unwell and my Prof Revolution S2 8000’s are not doing much better by showing similar “bursts” … Continue reading

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Review: SanDisk Ultra Dual Drive m3.0 128Gb USB Flash Drive

It doesn’t happen very often, but once in a while, I need a new USB flash drive. This time around, I was looking for something cheap, of reputable make and 128Gb capacity. Interestingly, looking around my local computer shop, the … Continue reading

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Event: CeBIT Australia 2018 Exhibition (15-17 May)

It’s become a ritual – every year, around this time, CeBIT comes to Sydney and I pay them a visit. It’s always a privilege to be able to walk around the expo to see who’s around, what’s new and catch-up … Continue reading

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Teardown: Generic Wall-Mountable Passive PoE Midspan Injector

For a lot of modern networked devices, Power over Ethernet (PoE) is a big convenience, allowing the one cable to power a remote device (be it an access point, camera, etc.) and supply the data connectivity to it. While there … Continue reading

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Repair: Xiaomi Redmi Note 2 Power Button

I bought my Xiaomi Redmi Note 2 back at the beginning of 2016 and it’s served as both my data-phone (browsing, data SIM) for a year and as a phone-phone (calls, SMS) for the remainder. It was good value when … Continue reading

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C-band Sats – Part 9: 172E Eutelsat 172B, 180E Intelsat 18, 177W NSS 9

In the final installment, I look at the three easternmost satellites with signals receivable in Sydney, namely Eutelsat 172B, Intelsat 18 and NSS9. Owing to their positioning and the markets which they serve, the latter two are circularly polarized and … Continue reading

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C-band Sats – Part 8: ~154E Mystery?, 166E Intelsat 19, 169E Intelsat 805

By now, we’re at the satellites which are pretty much at the highest elevation in Sydney. Owing to the fact that satellites aren’t covering the entire belt, even though we’ve only looked through about 50% of the arc, it covers … Continue reading

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C-band Sats – Part 7: 142E-150E (?) Unidentified/Mystery Satellites

The last post ended on a semi mystery at around 140°E which I believed to be Express AM5. A look at the Lyngsat satellite chart shows that there aren’t any known C-band satellites between 138°E Telstar 18 and 166°E Intelsat … Continue reading

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C-band Sats – Part 6: 134E Apstar 6, 138E Telstar 18, 140E Express AM5 (?)

The satellite-hunting story continues (thanks to a little more free time), this time looking at Apstar 6, Telstar 18 and what I believe to be Express AM5. These spectrums were taken during the period of 24th-26th March, but I’ve only … Continue reading

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C-band Sats – Part 5: 125E ChinaSat 6A, 128.5E LaoSat 1 (?), 132E Vinasat 1

This part of my satellite hunting adventure looks at ChinaSat 6A, what I suspect to be LaoSat 1 and Vinasat 1. 125°E ChinaSat 6A ChinaSat 6A has a very similar role to ChinaSat 6B, carrying a large number of carriers … Continue reading

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C-band Sats – Part 4: 115.5E ChinaSat 6B, 120E AsiaSat 6, 122E AsiaSat 9

In part four of the series, I continue my C-band satellite hunting adventure by moving up the belt. This post looks at 115.5 degrees East (ChinaSat 6B), 120 degrees East (AsiaSat 6) and 122 degrees East (AsiaSat 9). 115.5°E ChinaSat … Continue reading

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C-band Sats – Part 3: 100.5E AsiaSat 5, 105.5E AsiaSat 7, 113E Palapa D

Continuing on my quest to hunt all the C-band satellites in sight, this post continues the series up from the western horizon to visit AsiaSat 5, AsiaSat 7 and Palapa D. 100.5°E AsiaSat 5 AsiaSat 5 serves direct to home … Continue reading

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C-band Sats – Part 2: 83E G-Sat 10(?), 87.5E ChinaSat 12, 91.5E Measat 3/3a

I decided to start my scan from the western horizon upward. The first challenge was attempting to receive the satellite that is the lowest possible elevation to the west, then tracking the belt upwards to reach the other satellites. At … Continue reading

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C-band Sats – Part 1: Introduction to Satellite Hunting

It was a little more than a month ago in March, during some wet weather and a lull in my job-hunting schedule, that I thought I’d embark on a C-band satellite hunt. No, I’m not shooting down satellites … it’s … Continue reading

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Review, Teardown: TP-Link Archer T2UHP AC600 High Power USB Adapter

I had looked at a relatively cheap dual-band 802.11ac dual-stream USB Wi-Fi adapter recently and it seemed that the pain of single-band Wi-Fi solutions may be soon coming to an end. Unfortunately, that adapter did have some design quirks and … Continue reading

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Review, Teardown: Unbranded AC1200 Dual-Band USB 3.0 Wi-Fi Adapter

In the short span of about two decades, Wi-Fi went from being a luxury that you would consider a limited alternative to a cabled Ethernet connection, useful for mobile devices only, to something resembling a near-replacement for the cabled Ethernet … Continue reading

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Tech Flashback: Telecom Australia 600-series Adapters & Extensions

In the present day where landlines are a dying breed and mobile telecommunications has become ubiquitous, the beige-cream coloured Telecom Australia 600-series socket remains a common sight in Australian households. While I have no idea when the 600-series socket came … Continue reading

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Teardown: Generic QC2.0 15W Charger (TCAU15U-050912)

Owing to the growing market-share of Qualcomm devices sporting Quick Charge 2.0 and 3.0 capabilities, the market for such devices has grown substantially. As part of reviewing some power banks with QC-capabilities, it would not be possible to assess their … Continue reading

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USB Connector Resistance: Another reason for slow phone/tablet charging

It was back in 2014 when I first published about USB cable resistance as one reason why your phone or tablet might be charging slowly. At the time, quality cables with good gauge wires were hard to find, and many … Continue reading

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Teardown: Generic CX-FU02+ USB SoftV92 Data Fax HSF Modem

My tech shopping in Hong Kong continues with more goodies. One of the things I was on the lookout for was the last of the dial-up modem. Rather unsurprisingly, for such an advanced country, it’s almost impossible to find any … Continue reading

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Analysis: Freeview Sydney (18 April 2017) after SBS moves to HD MPEG-4

While I was on holidays, the DVB-T digital TV stations at home were undergoing the last of a series of long-anticipated changes. On 8th April 2017, SBS followed the lead of the other broadcasters and finally converted over to MPEG-4 … Continue reading

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Project: THE (large) COLLECTION of V.34 Modem Sounds

After my posting of the definitive collection of V.90 modem sounds, a number of people got in touch with me with a few of them requesting the same to be done with V.34 connections. At first, I didn’t see the … Continue reading

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US Fax Test Services: HP, Brother and Canon

The death of voiceband modem communications is slowly but surely happening. I started Project Fax in recognition of this, as a way to remember one of the technologies, but sadly from the few faxes I have received, it seems I … Continue reading

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Failing: Sandisk Ultra microSDXC 128Gb (Class 10, UHS-I, Up to 80MB/s)

The new year just keeps getting better. Sure, the battery in the phone is failing, but the microSDXC card as well?! The Culprit The culprit was a Sandisk Ultra microSDXC card of 128Gb capacity, Class 10, UHS-I rated up to … Continue reading

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Teardown: Swollen Xiaomi Redmi Note 2 BM45 Battery

While I was using my Xiaomi Redmi Note 2 the other day, I realized something strange was happening. It didn’t quite fit in its case as well as it used to, the screen felt a little like it was bowing, … Continue reading

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