[TangerineSDR] Notes from PSWS / TangerineSDR call of 07-27-2020

[Dr. Nathaniel A. Frissell Ph.D.]

Hi all,

Here is the recording from last night’s TangerineSDR Zoom: https://scranton.zoom.us/rec/share/wcA2Juz-qWdLG9bXtBDNSKtiHJ3Baaa82iUe-PYMzkv2eIFZ-rxJnXQQbS8MYKhH


73 de Nathaniel W2NAF

From: TangerineSDR <tangerinesdr-bounces at lists.tapr.org> On Behalf Of Tom McDermott via TangerineSDR
Sent: Monday, July 27, 2020 10:23 PM
To: TAPR TangerineSDR Modular Software Defined Radio <tangerinesdr at lists.tapr.org>
Cc: Tom McDermott <tom.n5eg at gmail.com>
Subject: [TangerineSDR] Notes from PSWS / TangerineSDR call of 07-27-2020


Notes from PSWS / TangerineSDR call of 07-27-2020

1. Dan put his Raspberry PI / Linux Ham application scripts on github:   https://github.com/n4xwe/scripts

2. Scotty asked about DE power supply needs from the RF module.
  From the 12-30-2019 call notes:
  RXM-5001D Receiver module power consumption estimates:
       +12V  :  10 mA typ.
       +5V   : 160 mA min. to 330 mA max. (depends on # relays selected).
       +3.3V : 100 mA max.
       +1.8V :  65 mA max.

3. Bill has actual receive data working from a Flex radio:  2 x FT8 slots plus 6 x 8 ksps channels (for spectral data collection and analysis), saved on hard drive in DigitalRF format. Separate threads are needed for FT8 and spectral analysis. Bill is also looking at adding WSPR. Bill is starting to add fire-hose mode with assistance from a grad student.

Bill would like TangerineSDR to support full VITA-49 compliance (each subchannel is on a separate stream). He would additionally like a VITA-49-T (TangerineSDR) proprietary mode that is non-standard but supports simplified interleaved multiple-sub-channel IQ data on a single stream that can interoperate well with DigitalRF.

4. On the DE LEAF plug-on module, power will be coming from both the M.2 connector and the 40-pin R-PI-compatible header connector. These will be needed for the VLF receiver module. We do not have documentation yet defining the LEAF board interface or mechanics (i.e. an ICD).

-- Tom, N5EG

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