I'm done with my migration from Unifi to Maxis FTTH, though a bit of hiccup last weekend when TM deactivated my Unifi, the technician came yesterday with a new password which work.
There are many people complaining about how restrictive the Maxis router is, for those who have Huwaei HG850a BTU, you might be lucky. Someone has come up with a way of replacing the Maxis Thomson router with your own and moving the VOIP to the HG850a BTU.
1. To get access to Web interface so you could save the current configuration
2. To get access to telnet interface
3. Have a VLAN capable router, or most routers that can be flashed with OpenWRT or DDWRT. 4. Follow the configuration as per the one shown in the guide above.
If you're not interested in getting the VOIP working, you could actually ignore all the things in the above guide. What you need is to have VLAN setup in your router to use VLANID 621 and connect it to Port 2 on the HG850a BTU.
Have fun .. and say bye bye to the Maxis FTTH stock router. You can throw it away or store it somewhere safe, just in case.
During my trip back to Manchester last month, I've got myself a cheapo WX station. Sold by Maplin under it's Maplin Gadget brand with N96GY model, I made to understand by reading some of the documentation found in Maplin website, it is an OEM from Fine Offset Electronics which produces few variants of the WX station with USB connectivity. I was a bit hesitate to buy it at first since 1) it is cheap 2) getting it to connect to a router will be a hassle. After few more research, I found out that there is a package called FOWSR available for OpenWRT and the price paid might be worth it to get it up for a year or so before getting something better/more expensive.
Assembling the unit is a no brainer, don't think you need to look at the manual to get the outdoor unit assembled. I've got it mounted on my porch since my house only has a small garden. For those who're thinking of putting a weather station, you should follow the one suggested here:
Anyway, the next hurdle is to get FOWSR to talk to aprs-is server. The FOWSR software was developed quite sometimes back and it hasn't been enhanced further. It supports the following format:
Left from the supported format is the APRS/CWOP format. I was looking to enhance the FOWSR but I couldn't get some of the libraries to compile properly using OpenWRT SDK (couldn't find this lib: libusb-compat), I might need to get the full source and recompile everything. But lucky me, I found someone using the same weather station + fowsr and his WX packet can be found on the aprs.fi. Emailed the packet owner, Nick (VA3NNW) to get more information on how he got his stuff running and he sent me a perl wrapper code that will reformat wunderground format into APRS/CWOP format. Thanks Nick for your help .. my WX station is up and running now and can be found here:
BTW, I've a workaround to have the WX packet to back-feed into the RF, by using aprx. What need to be done is to put a filter in section and in the section. If I ever get the OpenWRT SDK working, I might use it to output into a text file and let aprx to beacon out from the text file, this will then get picked up by other igate and into the aprs.fi. But for now, my current setup is working just fine.
I've modified Nick's perl script a bit to output a file into a /tmp directory instead of sending it direct to the APRS-IS server. I'm using aprx to beacon out from this text file into RF and back into aprs-is from someone's igate. This is now work well.
Nick has changed a bit on how his scripting works now, he is using CGI. For those who're interested in Nick's perl script, do head up to his page at:
My Garmin NUVI 350 has been intermittently giving me a problem which I believe caused by the power connector. For some reason, slight movement will cause the NUVI to loose it power. So, I'm retiring my NUVI, will still use it for day-to-day navigational (sourcing the power from the right side connector) and I've embedded a GPS module inside my TMD710A's head unit instead.
It is a straight forward project, that is after I did some "research" on the net and found few who've done it before. I based my mod from the this website: http://sq3fyk.com/?page_id=23
Here are the photos taken from the mod.
1. Scarifying my PS/2 serial GPS. Removed the casing, we're interested on the inner module which has both, the antenna & GPS receiver module.
2. Fully stripped, no only bare module & pig tails connector, left a good length of wires for the mod.
3. Trying to find the best place based on the website that I referred to, but decided that I don't want to loose the speaker.
4. Stripping the head unit, the volume & menu buttons etc, put them all into a safe container.
5. Okay, found the best place to stick the GPS, hopefully it won't fry the chip below it.
6. All wired .. you can visit the website mentioned above on where the connection needs to be done.
7. Test it first before putting back the casing .. everything seems to work, no short-circuit.. :)
It has been five years since the last time I had my feet in Manchester and this is a good time to 'balik kampung' once again. I've just got my reciprocal call sign from OFCOM and I'm going to operate SSB/QRP & APRS as M0HIK from 21st April to 7th May 2013.
Update: I'm back in Malaysia, didn't manage to work on SSB/QRP but you could see me on aprs.fi, going around NorthWest England on 28-29th April and I went down to Oxford, Bath and London on 4th-6th May.
Thanks to Rut, Pang & Yau, found a new way of monitoring the air. Cheap DVB/DAB usb sticks along with freely available SDR software which can be used to monitor few ham bands plus some other bands too. All these can be bought from ebay for a very cheap price, the cheapest I bought was for RM35 and reached me within a couple of weeks time. Went for an eyeball with them last night and comparing what we've, we've found that there are three kind of tuners these cheap sticks come with. An R820T (seems the cheapest) which is based on Rafael Micro R820T tuner, an Elonics E4000 tuner and one an umarked FC0013.
A zoom in on the one with R820T tuner:
And here is with Elonics E4000 tuner:
Running SDR#:
And here, decoding ADS-B using ADSB# + ADSBSCOPE:
More information on using this cheap SDR can be found here:
Ordered an HF/RF Clipper for my QRP set from OM Joachim (DF4ZS) and it arrived yesterday. More information on the HF/RF Clipper can be found in the following website:
Decided that I should do the dissect on my MH-31 last night, couldn't wait really but there was a setback, I couldn't really understand the instructions on modifying the tone switch, but after confirming with OM Joachim, I went ahead with installing the Clipper into the mic. Here is what we should do on the tone switch, shift the two wires to the left, and the wires from the tantalum cap goes to the free right most pin.
Here is the module, installed inside the MH-31 replacing the condenser mic element.
Have not really go into field testing yet, will do so when I've got free time today or probably during field day. Did a comparison with another stock MH-31 mic, it does put a lot of punch.
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