All: Most are aware that mode identification became a necessity more than a decade ago as the number of sound card modes grew. The problem was solved early on thanks to the Reed Solomon Identifier dev

Charles: Difficulty is not the problem, it's the lack of use. The reason is a mystery, but I can tell you that the problem has existed for many years. I'm not aware of RS-ID being mentioned in the ham

I was wondering if anyone has tried the file transfer feature in Airlink Express? It seems to have error detection / repeat block, sort of an ARQ protocol on top of the digital mode used (PSK or MFSK)

hmmmm... i can not really believe that ... the sdr is pointing to the sat with a dish ... right? so he used 2.4 gig towards the eshail sat ... and the downlink is then received at the web sdr how can

Talks at today's Martlesham Microwave Round Table #MMRT are being streamed live on the web. They includes talks on the Es'hail-2 / QO-100 geostationary satellite. 1245 GMT (1345 BST) David Bowman G0MR

First ROS test over QO-100 Sat #ros #sat #qrp PA1SDB Condcted a QRP test over the Sat link, using the goonhilly web-based sdr for RX Of ROS-4 and Thor-4 data modes Using a carrier level of 1.5 mW , to

Hi Andy, A lot of ALE operators over the years have acquired radios with embedded ALE and/or Selcall (Codan, Harris, Micom, Icom, Kenwood, R&S, etc). Not as many sounding continuously as there used to

ALE as a concept has always been a favourite amateur radio concept of mine. Alas its use in the amateur bands has been minimal. I have not used it much in the past year but 24 hours ago I reactivated

All: I purchased a new unopened box Yaesu FT-897D from an estate sale. It came with the FP-30 A/C power supply and a Yaesu 300 Hz CW filter that were also unopened in the box. I tested the radio and i

As the reporting , was based on the PSK-Map format , which in turn was invented to report HF propagation , by way of PSK31 activity .. As the number of bands in use increased, the limits of the report

FCC asking for comments on new Petition for Rule Making RM-11831 which calls for "Amateur Digital Mode Transparency". Would require all digital codes to use protocols that “can be monitored in [there]

All: The FT-897D has been sold. Tony

All: Pictures of the new FT-897D I have for sale can be found here: https://www.youtube.com/watch?v=HMT7wqqNjjM Sale goes to buyer with the best offer. Please contact me direct: dxdx@... Payment must

Interesting test by EA5DOM and EB3FRN after the successful EME tests , 3 cm and 24 Ghz terrestial links over 200 miles plus range, The latest involves the newly released geo stationary satilite Spots

New release of MULTIPSK (4.39) Hello to all Ham and SWL, The new releases of Clock 1.11.8 and MultiPSK (4.39) are on my Web site (http://f6cte.free.fr/index_anglais.htm). The mirror site is Earl's, N8

I finally have things back to normal... the odd fix ? Changing the transmit audio path in the digital mode software FROM USB AUDIO Codec to the PC speakers (just for the heck of it) , noting that made

Hi All, The Es'Hail 2 (Oscar 100) geostationary commercial satellite with ham radio transponders is now operational. Parked at 26 deg east, so below the horizon for the U.S.A. and Canada, but good for

Hmm, I think I am getting senile our something in Windows has changed. Usually we all set our digital mode software to the USB Codec of modern receivers and are thus able to operate digital modes whil

VARA [all versions] OPERA ROS IC-7610 added to CAT data base Download new version if required no other changes , CAT update only DOWNLOAD - LINK - Vara/Opera/Ros

30 Meter Multi Mode Weekend When: March 16th and 17th 2019 Where: 10 MHz - 30 Meter Band (10.100 – 10.150) Objective: To promote experimenting and using different digital modes on the unique 30 Meter