benson

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Username: benson
Joined: December 2017
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Noise at roughly 60 KHz intervals

benson

December 2018

In the addition to all the good points above another thing that might be worth checking is the coax cables going to your receiver. I replaced one low quality cable with poor shield and center… (more)
Receive and Decode DGPS on 306 KHz

benson

April 2018

Hi John,

There is a small but functional program called KG-DGPS, showing the actual GPS corrections. A couple of years ago the author "KG" JJ0OBZ made a whole series of mostly freeware and well… (more)

Hi John,

There is a small but functional program called KG-DGPS, showing the actual GPS corrections. A couple of years ago the author "KG" JJ0OBZ made a whole series of mostly freeware and well designed speciality decoders, but then unfortunately stopped other developments and support due to QRL workload or conflict of interest. Probably one of the Japanese users can find out more about the status of these programs and whether they can be considered abandon-ware or are now permitted to be included in other software.

On the other end of the non professional users spectrum there is "Amalgamated DGPS" which can run a large number of parallel decoders covering the complete DGPS LF band and shows a list and map display of received stations and time lines. The cost of the latter is less than 20 usd.

Probably many users do have a wish to have certain decoders included in KiwiSDR and perhaps we could have some voting to show which are most requested.

Which brings me to a more general point about digital mode decoders: one may wonder if it is worth your valuable time and effort to create rather complex demodulators/ decoders for inclusion in KiwiSDR, if affordable third party alternatives are easily available. Such a decision and choice of additional decoders of course remains with you.

KG-DGPS http://www2.plala.or.jp/hikokibiyori/soft/kgdgps/index.html
Amalgamated DGPS https://www.blackcatsystems.com/software/dgps_decoding_software_sdr.html

PS: KG-HFDL is an excellent HFDL (Arinc635) decoder with integrated map mode, hf tuning, database look-up and selcal (Arin714A) decoding and certainly beats PC_HFDL and similar programs. Sometimes I have used it on long flights to monitor surrounding traffic out of VHF or TCAS range.
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benson

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Noise at roughly 60 KHz intervals

Receive and Decode DGPS on 306 KHz