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[udrc] UDRC-II squelch on the Yaesu FT-897D → Does DRAWS require this?
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Stuart Longland VK4MSL
On 15/11/16 12:33 am, Bryan Hoyer wrote:
The Active Low SQL pin drives a 4.7kOhm resistor to the base of a transistor.Hi all, The DRAWS board arrived yesterday evening, and today I picked up a new Raspberry Pi 3 to connect it… so far things seem to be working but I'm yet to hook up a radio. Now, with the predecessor board (which has seen some use as a packet radio station), I had to make a small modification to get audio on the FT-897/857… https://stuartl.longlandclan.id.au/blog/2016/11/20/getting-the-udrc-ii-to-play-nice-with-the-yaesu-ft-897d/ I've also used this same board with an Yaesu FTM-350AR and a Icom 706 MkIIG. For the DRAWS, I intend to use it on my bicycle, which runs a FT-857D. The plan is I'll set up two transceivers: a Wouxun KG-UVD1P I have laying around set on 145.175MHz for APRS; and use the other port going to the data jack on the FT-857D. I'll use the DRAWS auxiliary port to control the CAT interface. With the Pi acting as a WiFi access point, I should be able to use a Mumble VoIP server to allow my mobile phone to connect and act as a "cross-band repeater". Thus when operating a check-point (like I was for the Yarraman to Wulkuraka bike ride¹ last year), instead of being tethered to the bicycle, I can plug my headset into my phone instead and still have 80m-70cm all-mode capability. For this to work, I still want to be able to use my radio normally, so basically be able to plug the headset into the microphone/speaker jacks on the set, and use it like I do now -- as Queensland road rules preclude me from using a mobile phone whilst in transit *for any reason* (unless I want an AU$1000 fine for my troubles). Do I need a pull-up on the SQL lines like I did for the UDRC-II in order to have normal audio on the FT-857D/897D? Regards, -- Stuart Longland (aka Redhatter, VK4MSL) I haven't lost my mind... ...it's backed up on a tape somewhere. 1. https://www.brisbanewicen.org.au/2018/08/04/y2w/
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Removing the SQL Pin seems like the best way to deal with the Yaesu Radios
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Bryan
On Aug 20, 2019, at 4:35 AM, Stuart Longland VK4MSL <@VK4MSL> wrote:
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Stuart Longland VK4MSL
On 20/8/19 11:27 pm, Bryan Hoyer wrote:
Removing the SQL Pin seems like the best way to deal with the Yaesu RadiosHow do I read the state of the SQL pin if it's open-circuit? -- Stuart Longland (aka Redhatter, VK4MSL) I haven't lost my mind... ...it's backed up on a tape somewhere.
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Squelch in the Radio is for analog modes so we don’t annoy the humans. The SW Modem isn’t annoyed so I turn squelch off in the radio.
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On Aug 20, 2019, at 1:46 PM, Stuart Longland VK4MSL <@VK4MSL> wrote:
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Stuart Longland VK4MSL
On 21/8/19 9:07 am, Bryan Hoyer wrote:
Squelch in the Radio is for analog modes so we don’t annoy the humans. The SW Modem isn’t annoyed so I turn squelch off in the radio.The software I plan to use requires the SQL signal to key up PTT in a VoIP application. As stated in my original email: With the Pi acting as a WiFi access point, I should be able to use aIn short, I'll be doing FM and SSB voice via the DRAWS board. I'll have a look at the schematic and see if I can do the 5V pull-up mod on the DRAWS and see how that goes. -- Stuart Longland (aka Redhatter, VK4MSL) I haven't lost my mind... ...it's backed up on a tape somewhere.
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