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Re: "Error: Frequency" on power up.
Bob
开云体育ColinI had a similar problem with V1.02 but have managed to correct it by selecting the first digit then holding down the right button and let it scroll through a few times and it eventually came back to all numerals. Repeat the exercise for all the corrupted positions. The only problem now is a 'H' at the end which I can't erase. Bob? VK7ZL On 17/08/2012 06:43, G1IVG wrote:
? -- LF/HF QRSS Grabber: NDB & Navtex Logging: |
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Re: Is this GPS suitable
cvest@...
That looks like a very good buy . In the USA there is a fellow selling the UBLOX on that selling place . Really good price . I have purchased 2 from him . Usual disclaimer , no financial interest , just passing along some information that might be useful .
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Charlie , W5COV ---- Tony Volpe <tony.volpe.1951@...> wrote: I forgot to include the link to the very cheap EM-406A from Expansys in my |
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"Error: Frequency" on power up.
"G1IVG"
Hi all,
My Multimode QRSS kit was working OK, however tonight when I powered it up I got the "ERROR: FREQUENCY" message displayed. If I go through the menu options the Frequency setting is showing a non numerical corrupt type 10 digit entry full of non numerical figures. My callsign was also corrupted in a similar fashion as well as the message and locator. It looks like I've corrupted the EEPROM within the micro-controller. I'm unable to select the "Delete All" character as I only get the option to enter numerical characters in the display. The Delete All symbol is not available. Is there a way to clear all user settings held in the EEPROM to default settings or do I need to order a replacement micro-controller? I'm currently using v1.03 and if I replace it with my original v1.00 the user settings are all OK, however the kit has the known bugs that were in v1.00 Regards Colin G1IVG. |
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Re: Ultimate QRSS kit back online after destroying the PCB
"Philip"
Well done Colin....
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Bet that wasn't an easy job.. Philip G4JVF --- In QRPLabs@..., "woodiescbj" <jobaco@...> wrote:
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Ultimate QRSS kit back online after destroying the PCB
"woodiescbj"
Its working again, after having destroyed the PBC by removing the Xtal to fix it underneath, I have managed to re-wire the damaged tracks and everything seems to be working again, the frequency is now stable and I getting spots on WSPR again.
73 Colin |
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Re: Is this GPS suitable
Hans Summers
Hi Charlie > Is there a list yet of the different GPS engines that everyone is using ? I am preparing a list here:??, as more people report successes (or failures) I will add them
> Has anyone tried the : > UBLOX TIM-CJ module, which has a TIM-ST-0-100 GPS engine I used a uBlox-TIM, my module is this one - but I don't know if that's exactly the same one as you mention.
73 Hans G0UPL |
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Re: QRSS Beacon operational - Burnham on Sea UK
Stephen Farthing
Nigel,
Glad to know you are up and running. I thought about asking for the old chips back for reprogramming but decided against it. Firstly I don't see why you guys should pay the postage and packing for our mistakes, secondly I prefer to work with new devices straight out of the anti static tubes. There is no way of knowing how much static damage they have had when they leave my hands. Static damage is funny. Devices can work for a while with it then fail. You guys pay for new components and thats what we ship. What you do with them once they leave my hands is up to you!
73s Steve |
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Re: QRSS Beacon operational - Burnham on Sea UK
"woodiescbj"
Here is another grabber online
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73 Colin --- In QRPLabs@..., "Nigel Evans Call sign M0NDE" <nigel.m0nde@...> wrote:
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Re: QRSS Beacon operational - Burnham on Sea UK
"woodiescbj"
Hi Nigel, have a look here:
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he is online at the moment, I will have a look at your video when I am at home, I have had a number of spots on WSPR it is quite easy to setup and good idea about the chips I am sure it would help to keep costs down. Vy 73 de Colin DD5CF / G1ZOS --- In QRPLabs@..., "Nigel Evans Call sign M0NDE" <nigel.m0nde@...> wrote:
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QRSS Beacon operational - Burnham on Sea UK
"Nigel Evans Call sign M0NDE"
Hi, I have just boxed up my kit, I have a couple of things to add like an on/off switch and to hinge the bottom panel to aid battery replacement. A video of first time running is on my blog.
I would appreciate if anyone can report seeing my signal. I am QRSS3 at present on 10.140005. I have never tried WSPR, so perhaps this is the next test. Does anyone know if Steve want the old chips back to reprogram? -- 73 de Nigel Evans M0NDE QTH Burnham on Sea, Somerset www.m0nde.co.uk |
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My experience with the Ulitimate QRSS Kit
"woodiescbj"
Hi, I just wanted to let you know about how I am getting on with the U-QRSS kit.
The finished kit has been working well and was a real pleasure to build, I then wanted to box it but the Xtal was to high, I remembered seeing a photo where the LCD is at right angles to the PBC (which is the way I have built mine) where the Xtal is underneath the PBC, What a Good Idea I thought and tried to de-solder the Xtal (don't try this at home folks) I have managed to get it out with difficulty and have destroyed the fine copper tracks on the PBC, why didn't I just use a higher box? You live and learn. For the last couple of days I have been using a continuity tester and re-wiring the PBC, I am not very good at this sort of thing and looks a real mess, I enjoy building kits but when something goes wrong I am stuck, I passed my ham radio city and guilds exam in two stages the first part station ops I passed first go the second part electronic theory I passed after a hitting the books on and off for two years, I find electronic theory confusing but passed in 1986 ( I was 31) by the skin of my teeth, thank heavens for multiple choice. I have got the LCD working again, I am able to change the frequency again but tuning seems to be backwards now, it is also a bit unstable and sometimes drops in frequency of about 150 Hz (I have seen my signal on WSPR at 10.140149 with a constant drift of -2 and have had one spot of 800 Kms it then drops off the scale), CW is working, FSK is sending my call DD5CF as UU5 .-.- L ( I had to look twice at that!), SlowHell no problems detected so far, so its Back to the Old Drawing Board but I am very happy with my progress to date and I am learning all the time. I was surprised to see my signal this high in frequency on WSPR as my Xtal is 10.140000, but then again I was also able to tune quite high before I destroyed the PBC. I have built a number of kits, all are working: Softrock RX II for 30m and RXTX Ensemble for 30, 20 and 17m kits by Tony Parks. The Brendon for 80m, The Fivehead for 40m with AGC and Frequency counter added, kits by Tim Walford. MKARS80 for 80m. VK5ZVS antenna analyzer. I am still having problems with the mono-mode QRSS kit for 160m, I have tried the various capacitor kick start solutions with no effect, I will have a go at building a Xtal checker this weekend, I will let you know now I get on. I have noticed on the circuit diagram for the U-QRSS that IC2d pins 12 and 13 are the wrong way round. Sorry for being long winded but I had to get that off my chest. Vy 73 de Colin DD5CF / G1ZOS |
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Re: Is this GPS suitable
Tony Volpe
I forgot to include the link to the very cheap EM-406A from Expansys in my last post. Sorry - long day of walking in the hills.
There it is. It was the cheapest I saw anywhere that is suitable. Mine seemed to be in the UK but was despatched from Provence in France. Came three days after I ordered it, including a weekend. Don't order a connecting cable Iike I did. There is one in the packet, but it isn't shown on the website details of the product. I now have a spare, so if I make another Ultimate kit for another band, I can just unplug it from one and plug it into the other.
Bzb |
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Re: Is this GPS suitable
cvest@...
Is there a list yet of the different GPS engines that everyone is using ?
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Has anyone tried the : UBLOX TIM-CJ module, which has a TIM-ST-0-100 GPS engine Charlie , W5COV ---- Bob <vk7zl@...> wrote: Thanks to all those who replied with information and thanks Hans for the |
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Re: Is this GPS suitable
Bob
开云体育Thanks to all those who replied with information and thanks Hans for the datasheet.I bit the bullet and ordered one today and will report on its suitability in due course. A quick report on my Ult. MEPT- Despite the corrupted chip it is producing DFCW on 10140080 with an output of 106mW into a dipole @ 10M via 50M of RG8 coax and has been running continuously for four days without fault. It is constantly visible on ZL2IK's grabber and made a very brief appearance on W4HBK's grabber last night. I placed the unit in a polystyrene box and after the temp stabilized the freq. moves ~4Hz in 24hrs. With the new chip and the GPS it will be interesting to monitor its performance on WSPR. Thanks to Hans and Steve for their efforts. Bob? VK7ZL On 16/08/2012 00:54, Hans Summers
wrote:
? -- LF/HF QRSS Grabber: NDB & Navtex Logging: |
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Re: U QRSS Upgrade Received Safely.
"David Barber"
Thanks to Tony (BZB) and Dick (BBH) for their thoughts.
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I'm confident I'm not overloading the receiver, I've made it as deaf as possible and the QRSS TX is well terminated. The signal the RX is seeing is well below often heard off air signals. Swapped for another PSU as well with no change. It's not the U.QRSS either so most likely something weird with the sound card / chip. There was one benefit of the investigation which revealed one of my bench power supplies is a little sick exhibiting a repetitive 22MHz burst of low level oscillation. So something else to look at! David G8OQW *** ________________________________________ From: QRPLabs@... [mailto:QRPLabs@...] On Behalf Of Tony Volpe Sent: 15 August 2012 16:01 To: QRPLabs@... Subject: Re: [QRPLabs] Re: U QRSS Upgrade Received Safely. It is very common on WSPR to see a double decode several db down on a very strong signal. It is particularly likely when you are swamping your own receiving system with a local mept like this. It happens on mine too. I think it is caused by overwhelming the sound card with a strong signal. Turn the RF gain back on your receiver and it will disappear. It doesn't mean you are transmitting a wide splattering signal, so no need to worry about it. This effect has been discussed several times on the WSPR website. 73s de G0BZB Tony On 15 August 2012 12:34, ferrymanr <g4bbh@...> wrote:
? It may be related to the sound card but that would also show up on off air signals from other stations, particularly on strong signals. I have found that sometimes 100Hz sidebands may be produced if there is hum on the power supply. It doesn't take much hum to show up, particularly on the feed to the 2N7000. Dick G4BBH |
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Re: Is this GPS suitable
Tony Volpe
This one works very well with the v1.04 firmware. It wouldn't work at all with the v1 and 2. The thing that most recommends it to me is that the same GPS engine is on sale at nearly three times the price Expansys are asking - ?21. The postage was about ? ??1.75. The GPS comes with a mini cable for connection, though this was not clear from the sales blurb and I ordered one, so I ended up with two. In the end the whole kaboodle cost me under ?25.
Be sure to hold the RX line high if unused as it is in this kit. I found info about that in one technical document on the device, but not in others. If you hold RX at about 3.6v, you don't need to pull any others high. Great to have my WSPR oriented kit bang on time.?
There is no arrangement for an external antenna, if that is an issue. Nevertheless, it locks on inside a brick house near a small window. |
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Re: Is this GPS suitable
Stephen Farthing
David makes a good point. A lot of the old school GPS units require an external active antenna which need to be sited in direct view of the sky. Newer ones have built in antennas and usually are very sensitive. So you can use them pretty much anywhere.?
73s Steve |
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