30 Jun 2012
Denmark active on 472-479kHz band
In the last few days OZ amateurs have been granted access to the new band. Along with Monaco and Germany there are now 3 countries (to my knowledge) allowed to use this new LF band. It has been confirmed that The Netherlands will get access on Jan 1st 2013.
VLF amateur activity
There is a new VLF grabber at Darmstadt Germany that may be useful for 8.97kHz tests. It is at http://skmail.ikp.physik.tu-darmstadt.de/gvw/grabber.html. The grabber is primarliy there for VLF research into earthquake precursors.
Stefan DK7FC reports that the permit he has to use a 300m kite antenna expires soon, so he may try a further soon before that date. Chris G3XIZ is still hoping to resume VLF tests once a new loading coil is wound. He is looking for a suitable (very long!) source of PVC covered wire.
Stefan DK7FC reports that the permit he has to use a 300m kite antenna expires soon, so he may try a further soon before that date. Chris G3XIZ is still hoping to resume VLF tests once a new loading coil is wound. He is looking for a suitable (very long!) source of PVC covered wire.
24 Jun 2012
DYC-8x7 speech processor kit
Funk Amateur, the German magazine's online shop is selling (after a gap I believe) a neat in-line speech processor kit for the FT817 and similar Yaesu rigs called the DYC-8x7. On http://www.eham.net/reviews/detail/2546 it gets good reviews.
I'd like to order one but cannot understand how to go about it not being a German speaker. Google translate doesn't translate all the words, so I am stuck. If anyone can help I'd appreciate it, or tell me if it is available in the UK.
See http://www.box73.de/product_info.php?products_id=945 .
LATER UPDATE
With a step by step translation using Google Translate I managed to register on the Funk Amateur site and place an order.
I'd like to order one but cannot understand how to go about it not being a German speaker. Google translate doesn't translate all the words, so I am stuck. If anyone can help I'd appreciate it, or tell me if it is available in the UK.
See http://www.box73.de/product_info.php?products_id=945 .
LATER UPDATE
With a step by step translation using Google Translate I managed to register on the Funk Amateur site and place an order.
Labels:
dyc-817,
dyc-8x7,
ft817,
speech processing
23 Jun 2012
On-line CW training at LCWO
Typical LWCO log-on page |
However, for we CW duffers, help is at hand: http://lcwo.net/ is a rather superb on-line CW training facility that I believe could really help improve CW skills with a few minutes' effort each night. I have been to the site before and managed to improve my speed a bit but need to return there and try some more. All sorts of CW training is available at all sorts of speeds. If you want to use CW, which is an excellent mode especially for QRP, then this is worth a visit.
Ultimate QRSS/WSPR kit from Hans Summers
Hans Summers G0UPL has just announced a wonderful new kit. Amongst other modes it also supports stand-alone WSPR beaconing when used with a GPS timing reference, without a PC. This was his announcement on the GQRP Yahoo group earlier today:
All,
This is to announce a new standalone QRSS/WSPR kit by Steve G0XAR and Hans G0UPL. The kit supports WSPR, QRSS, DFCW, FSK/CW, CW, Hell (full speed and half-speed), Slow Hell, and customisable FSK patterns. The WSPR encoding is on-chip. It supports the connection of a GPS module for frequency locking, accurate time, and location (for WSPR). Power output is measured at 185mW on the 30m version. We are selling versions for 30/40/80m and perhaps later 20m and 160m. It does not require a PC, it has an LCD and two buttons to control it.
The price is GBP 15.39 (EUR 19 or US $24 approximately) plus shipping.
You can see all the details here: http://www.hanssummers.com/qrsskitmm and order online at http://www.hanssummers.com/shop . We expect to be shipping by 27-29 June.
The kit supports the following modes:
+ QRSS mode (plain on/off keyed slow CW)
+ FSK/CW mode (frequency shift keyed slow CW)
+ DFCW mode (dual frequency CW, dit's and dah's on different frequencies)
+ WSPR mode (Weak Signal Propagation Reporter)
+ Slow-Hellschreiber (frequency shifted slow Hellschreiber)
+ Hellshreiber (full-speed standard Hellschreiber, and half-speed Hellshreiber)
+ CW (plain CW)
+ Customisable FSK patterns
Other features:
+ 24-character LCD + two-button user interface
+ User-programmable (callsign, message, speed, FSK, mode, etc.), settings stored in EEPROM
+ GPS interface, for locking the frequency in slow-speed modes
+ On-chip generation of WSPR encoded message (no PC required)
+ WSPR maidenhead locator can be generated from GPS-derived latitude/longitude
+ Selectable “frame” size, for stacked QRSS reception
+ Plain CW callsign identifier at selectable interval
+ Produces 150mW RF output, or AF output for driving an SSB transceiver
+ Higher output power by additional PA transistor and/or higher PA supply voltage
73 Hans G0UPL and Steve G0XAR
22 Jun 2012
6m WSPR and Doppler shift
Note Doppler on signals at 1742z |
21 Jun 2012
Digital QST
Although not (yet) an ARRL member I am tempted join to get the new digital version of QST magazine. A sample of this new digital version is available from the ARRL website.
QST has been a very useful source of data going back to around 1916. I well remember thumbing through the copy in Plymouth library when attending RAE lessons at Plymouth Tech way back in 1966.
QST has been a very useful source of data going back to around 1916. I well remember thumbing through the copy in Plymouth library when attending RAE lessons at Plymouth Tech way back in 1966.
Rigol test equipment
The Rigol Spectrum analyser at £895 plus VAT |
Labels:
rigol,
spectrum analyser
SAQ transmission on 17.2kHz on July 1st
From the SAQ website:
Transmissions on Alexanderson Day
We plan for transmissions on Alexanderson Day Sunday 1st July. If we are allowed to use the antenna we start the machine transmitter at 8.30 UTC and a message is sent at 9.00 UTC. Second start of the transmitter at 11.30 UTC and a message is sent at 12.00 UTC. The frequency is 17.2 kHz CW.QSL-reports are kindly received:QSL reports can be given via:- E-mail to: info@alexander.n.se- or fax to: +46-340-674195- or via SM bureau- or direct by mail to: Alexander - Grimeton Veteranradios Vaenner, Radiostationen, Grimeton 72, S-432 98 Grimeton, SWEDENNote: SAQ is a member of the Swedish Amateur Association (SSA) and "QSL via bureau" is OK.
Labels:
saq
20 Jun 2012
ISS Flash Project
Guido PE1NNZ has sent me this interesting link about a recent experiment with the International Space Station using optical frequencies. See http://www.cqdx.ru/ham/ham_radio/iss-flash-project/ .
Labels:
iss
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