Search found 10 matches

by k2ue
Fri Mar 29, 2019 2:00 pm
Forum: Apache Labs Radios: Buy/Sell/Trade
Topic: DJControl MP3 LE available
Replies: 0
Views: 470

DJControl MP3 LE available

I have two of these I am not using -- email k2ue@arrl.net if interested.
by k2ue
Wed Nov 14, 2018 5:31 pm
Forum: PC's & Homebrew Hardware
Topic: CPU Recommendation: 2700X
Replies: 5
Views: 2325

Re: CPU Recommendation: 2700X

Rob... I'm sure your aware of the new SSD form factor name, but for those who may not it is referred to as M.2 SSD. The M.2 cards utilize the PCI Express bus rather than the eSATA bus which bottle necks the speed of SSD. M.2 SSD drives are up to five times faster than eSATA SSD drives for not much ...
by k2ue
Tue Nov 06, 2018 11:36 am
Forum: PC's & Homebrew Hardware
Topic: CPU Recommendation: 2700X
Replies: 5
Views: 2325

CPU Recommendation: 2700X

I recently built up a new PC with a water cooled Ryzen 2700X and 32GB of 3200MHz RAM on an X470 chipset. It is a beast! Latency is low, and stays low with all loads, and and you hardly notice when HPSDR is running. Great LTSpice performance too -- highly recommended.
by k2ue
Sun Jul 08, 2018 10:27 am
Forum: Thetis
Topic: Thetis needs a new name!
Replies: 3
Views: 1291

Thetis needs a new name!

It turns out Thetis roughly equals Titanic as an unlucky name:

https://www.youtube.com/watch?v=plH-mbcTK7o

HMS Thetis - Disasters of the Century
by k2ue
Sun Jul 30, 2017 12:21 pm
Forum: Amplifiers & Tuners
Topic: SDR Angelia and PA Hilberling HPA-8000B
Replies: 3
Views: 2097

Re: SDR Angelia and PA Hilberling HPA-8000B

The USB-to-Serial Port adapters using the FTDI chipset work very well with ham gear and apps, and are more convenient that adding a card. You can find them with 1, 2 or 4 serial ports from a single USB port.
by k2ue
Fri Jun 30, 2017 1:53 am
Forum: piHPSDR
Topic: Disable Screen Blanking?
Replies: 2
Views: 2088

Re: Disable Screen Blanking?

Go into Preferences -> Power Manager and click on the Display tab. You can then disable the Power Management and set the screen blanking to Never. -- John g0orx/n6lyt Actually it seems to work the opposite -- I had blanking set to Never and Power Management set to OFF -- setting Power Management ON...
by k2ue
Thu Jun 29, 2017 4:20 pm
Forum: piHPSDR
Topic: Disable Screen Blanking?
Replies: 2
Views: 2088

Disable Screen Blanking?

My Tinker-based PiHPSDR blanks the screen after a few minutes until the mouse is moved again -- how can defeat this and have a constant screen?
Clyde, K2UE
by k2ue
Fri Jun 02, 2017 10:31 am
Forum: piHPSDR
Topic: Asus Tinker Board
Replies: 18
Views: 7448

Re: Asus Tinker Board

I also have Tinker PiHPSDR running with just display, mouse and keyboard (while waiting for the kit). I added a little USB headphone/mic device, and it was straighforward to get headset audio, but I haven't figured out how to get mic input from the USB device to the radio (an 8000) -- how is that do...
by k2ue
Sat May 27, 2017 4:06 am
Forum: piHPSDR
Topic: Asus Tinker Board
Replies: 18
Views: 7448

Re: Asus Tinker Board

Are other graphics options besides the 7" touch display supported by PiHPSDR with the Tinker board?
by k2ue
Sun May 21, 2017 10:36 pm
Forum: PC's & Homebrew Hardware
Topic: RX filter problem
Replies: 2
Views: 1627

Re: RX filter problem

Insertion loss due to mismatch, like a filter approaching cutoff, has less effect on system NF than resistive attenuation -- they are not the same thing.  Are you aware that the very lowest NF amplifiers reach their lowest NF with a very large mismatch?  Conjugate matching is not a guarantee of lowe...

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