[TangerineSDR] Notes from PSWS / TangerineSDR call

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

Thank you, Tom.

The video is uploading now and will be available later today at https://youtu.be/esWn6SDiVCk and hamsci.org/telecons.

73 de Nathaniel W2NAF

From: TangerineSDR <tangerinesdr-bounces at lists.tapr.org> On Behalf Of Tom McDermott via TangerineSDR
Sent: Monday, May 24, 2021 10:20 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


Notes from PSWS / TangerineSDR call of 05-24-2021

1. John and Scotty located a replacement TCXO for the clock module and they are on order (the previous unit was not available for production). Scotty received the 7-port Ethernet chip. The USB3 (mid August delivery) and FPGA (date not yet committed) are the only components not yet promised.

2. Discussion on power supply bypassing for low conducted noise. Scotty will send Tom part numbers of the output bypass caps he is planning for the +12v to +5v switcher.

3. Discussion on PPS during holdover. John recommends having the FPGA generate PPS from the synthesizer and update/synchronize that against GPS PPS when GPS in-lock, and holdover when GPS out-of-lock. The new TCXO has good holdover performance ( +/- 40 ppb over 24 hours at constant temperature).

-- Tom, N5EG

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.tapr.org/pipermail/tangerinesdr_lists.tapr.org/attachments/20210526/125b0d12/attachment.html>