Search found 996 matches

by Daniel Wee
Fri 17 Sep 17 2021 9:28 pm
Forum: General Discussions
Topic: SARTS Repeaters
Replies: 53
Views: 376011

Re: SARTS Repeaters

The Motorola CPS 2.0 software is used to program the repeater profile but an RNDIS driver is required before Windows 10 recognizes the USB port as a network device.
by Daniel Wee
Thu 16 Sep 16 2021 11:31 pm
Forum: General Discussions
Topic: websdr
Replies: 1
Views: 7771

Re: websdr

The actual server code are the python scripts in the PY directory. Within these scripts are defined the ports that are used to exchange data. Specifically, the TX/RX ports are defined in:- remote_rx_audio.py - 8001 remote_rx_para.py - 8003 remote_rx_spectre.py - 8002 remote_tx_audio.py - 8004 remote...
by Daniel Wee
Wed 15 Sep 15 2021 10:04 pm
Forum: General Discussions
Topic: Source for antenna making hardware
Replies: 0
Views: 14149

Source for antenna making hardware

KIAN HUAT METAL PTE LTD
11 Pioneer Road North #01-68
Singapore 628462

CHIP AIK ALUMINIUM (PTE) LTD
11 Kian Teck Way
Singapore 628736
- Aluminum tubes
by Daniel Wee
Wed 15 Sep 15 2021 7:40 pm
Forum: General Discussions
Topic: SARTS Repeaters
Replies: 53
Views: 376011

Re: SARTS Repeaters

The current setting for the repeater:- TX 145.625MHz RX 145.025MHz CTCSS 156.7Hz Output power 25W Time-out-timer 1-minute Mode: Analog The plan is to get the license for the CPS software so that we can adjust these values. This requires a license key and is tied to the laptop on which the software i...
by Daniel Wee
Wed 15 Sep 15 2021 7:32 pm
Forum: General Discussions
Topic: SARTS Repeaters
Replies: 53
Views: 376011

Re: SARTS Repeaters

We now have the Motorola SLR-5300 installed and working. Cavities are tuned. Currently using the Yagi antenna on the upper balcony with SWR of about 1:1.4 measured at the TX port of the cavity. The radio does not overheat, nor drift appreciably in frequency with heavy usage. As the repeater now come...
by Daniel Wee
Wed 15 Sep 15 2021 3:50 pm
Forum: General Discussions
Topic: websdr
Replies: 1
Views: 7771

websdr

by Daniel Wee
Mon 13 Sep 13 2021 3:24 pm
Forum: Radios
Topic: Retevis RT-95 VHF/UHF
Replies: 4
Views: 16909

Re: Retevis RT-95 VHF/UHF

This has now been upgraded with a Raspberry Pi 4. The RT-95 volume setting is still set to 12 but the alsamixer L-R mic capture is set to maximum, while the RPi4 volume is set around 56.
by Daniel Wee
Thu 09 Sep 09 2021 11:33 pm
Forum: General Discussions
Topic: Packet Radio (AX.25)
Replies: 14
Views: 26908

Re: Packet Radio (AX.25)

The screened direwolf process is started in /etc/rc.local which runs it as root with the line:-

Code: Select all

screen -dm direwolf -c /home/pi/direwolf.conf
by Daniel Wee
Thu 09 Sep 09 2021 10:20 pm
Forum: General Discussions
Topic: Packet Radio (AX.25)
Replies: 14
Views: 26908

Re: Packet Radio (AX.25)

On the Raspberry Pi 4 - the alsamixer settings can be seen by selecting F6 and picking the USB sound card. Once that is done, use the tab key until all four sliders are shown. The sliders of interest are the Speaker (#1) and the Mic Capture (#3). The settings:- Speaker 56 Mic 83 Mic Capture 100 AGC ...
by Daniel Wee
Mon 06 Sep 06 2021 7:51 pm
Forum: General Discussions
Topic: Packet Radio (AX.25)
Replies: 14
Views: 26908

Re: Packet Radio (AX.25)

sudo apt install python3-pip
pip3 install pyaudio python-pyaudio