Category Archives: Radio

Project: RasPBX (FreePBX/Asterisk) for the Home

In the early days of VoIP, most users were still using analog phones through ATAs and early softphones with services like Free World Dialup (later, FWD) which offered users free SIP accounts that could call within the FWD network for … Continue reading

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Opinion: The ‘Secret’ Life of Bus Drivers

As a frequent public transport user, I’ve always had an interest in various modes of transport. By far, the one that has proven to be most entertaining to monitor in recent times has been that of the bus radio, as … Continue reading

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Project: Scanning the Orion DMR Network (Kurrajong Heights Base)

I was sitting in my room the other day and something seemed off. It was quiet. Too quiet. But why? As it turns out, I used to have a scanner radio active in idle times to listen to what was … Continue reading

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Tech Flashback: Radio Scanning (feat. Uniden UBC93XLT, DSE DTS-96, Icom IC-R20)

Towards my later high-school years, in the mid-2000s, armed with a small amount of money, I picked up the hobby of radio scanning. As a person who was curious by nature and had built a number of FM radio microphone … 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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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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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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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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Salvage, Teardown: DingTong DT-98 8W 403-470Mhz Handheld Transceiver

Imagine my surprise when stopping to catch the bus one day, I see a hand-held radio in the grass not far from the bus stop. I was in a hurry and had to leave, so I hopped on the bus … Continue reading

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Repair (?): ICOM IC-R75 that won’t turn on!

Returning home from holidays is not easy. In some sense, I’d like to call it a holiday hangover. You start walking on the wrong side of the road, sleeping at odd hours, and in perpetual need of energy to unpack … Continue reading

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Farewell: TBS TBS6925 Professional PCIe Satellite Tuner Card

As a hobbyist with an interest in chasing satellite feeds, my TBS TBS6925 Professional Satellite Tuner Card was my dependable companion. Around AU$250 a piece, I purchased two back in 2011 and two years later, got around to reviewing it. … Continue reading

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An Incomplete Repair: BladeRF x40 Software-Defined Radio

My last trip to Singapore, Japan and Hong Kong kept me away from home for 80 days, in which time I thoroughly enjoyed doing things I couldn’t otherwise do from home. Despite arriving back home almost a month ago, it … Continue reading

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Visited: SMPTE 2017 Exhibition Sydney (18 – 21 July)

After returning from my first long-solo-trip, I decided to spend two months “decompressing” and getting ready for my next trip. Part of the reason was so I could attend CeBIT, Vivid Sydney and SMPTE Exhibition. The last time I went … Continue reading

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Teardown: Motorola CableComm Series II Cable Access Unit (MM1012A)

I remember when I was very young, peering outside the window and seeing a bunch of workmen and trucks pull up in front of the house. In a short time, they rigged a steel wire between the power poles, then … 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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Canb2016: Part 6 – DAB+, DVB-T, FM Broadcast & Other Radio Scanning

It’s been a busy day of analysis to bring this part of my Canberra trip to a posting, but I suppose, it’s probably good that I’ve done the analysis before the data got too stale. In this post, I will … Continue reading

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Radio: DAB+ in Sydney (25 Nov 2016) – Service Info & Slideshows

I was contacted a little while ago by the maintainer of FMLIST, an online database of worldwide FM radio, DAB and TV information. He appreciated my posting on Melbourne’s DAB radio stations that I made in my trip down there … Continue reading

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Project: YYDZW BH1417F-based Stereo FM Transmitter Kit

While I was browsing the listings of electronics kits on eBay, I came across this particular stereo FM transmitter kit but I didn’t think much of it. In fact, given the chance to buy it, I passed over it twice. … Continue reading

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Project: Sainsmart Forty-9er “3W” 7.023Mhz QRP CW Transceiver Kit

Even though I’m insanely busy, it seems I just can’t help myself when it comes to cheap Chinese kits available on eBay. Of course, having built most of the cheap radio-based kits already, there isn’t really that much to build … Continue reading

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Project: CD2003GP+SC3610D FM Receiver w/LCD Alarm Clock (74-108Mhz)

My little “mission” to build random Chinese radio-kits from eBay continues with this rather odd and difficult kit. Unlike the other kits, this is the first to come with an LCD display, but is advertised strangely as FM Radio Kit … Continue reading

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Experiment: Sydney WFM Broadcast RDS (TMC, RT+) & ACS Audio

Since my last posting about subcarriers, I decided to do a little more digging around and try to understand more about the Open-Application RDS data and try a better approach at recovering the audio from the ACS (otherwise known as … Continue reading

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Experiment: Examining Sydney WFM Subcarrier Signals (RDS, ACS)

When I was still in school, I can remember my Dad buying a “special radio” from a broadcaster to listen to some ethnic radio broadcasts. The radio was quite expensive, and it looked and felt just like a regular portable … Continue reading

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Project: S66D/E 9018-based AM Radio Kit

If you’ve been wondering about all the random radio kits I’ve posted about recently and had the thought “Gee, that guy must’ve just looked for any cheap radio kits on eBay and bought them all!” You’d be absolutely right. In … Continue reading

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Project: 7.023Mhz PIXIE_V3 QRP CW Tranceiver Kit

After I stupidly decided to push the limits on the PIXIE_4.1 and subsequently destroyed its amplification, I wasn’t too concerned. Being the prepared sort, when it comes to low-cost kits, I sometimes buy two in anticipation that maybe some parts … Continue reading

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Project: 7.023Mhz PIXIE_4.1 QRP CW Transceiver Kit

Going along the same vein of “radio kits”, this one is a little bit different. This one is a do-it-yourself PIXIE 7.023Mhz QRP transciever intended for amateur (ham) radio morse code (CW) usage. It doesn’t have many specs, but apparently … Continue reading

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Review, Tested: Generic USB FM Transmitter (FM_MIC_V5.0.9)

It wasn’t too long ago that I purchased a generic pocket radio kit on eBay and built it. But as anyone knows, when it comes to shopping online for cheap Chinese goods, there are often lots of things that can … Continue reading

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Freeview Update: Launch of ABC Me

I’ve been extremely busy as of late, so there hasn’t really been much time to keep up-to-date on everything that’s happening. Thankfully, I was tipped off about a reader a few weeks back that today would be the launch day … Continue reading

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Project: Paeansonic CF210SP CD9088+CD7642 AM/FM Radio Kit

It’s been a bit quiet around here lately – I’m just swamped with work, and it never quite goes away, but neither does the desire to do something for my own enrichment and enjoyment … and the desire to blog … Continue reading

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DIY: Build a 70cm Band Yagi for Amateur Satellite Tracking

It’s been a long time since I’ve chased any amateur satellites. It’s been a long time since I’ve had the time to chase them, and sadly, things have changed. In the seven years or so, satellites I once “knew” as … Continue reading

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