Keven,

Thank you for your detailed response.? I apologise for hijacking?this thread, so I'll contact?you directly for any followup.? You are correct that the receive?audio should be on pin 2 and I mis-stated.? The receive?audio is on pin?2 on my adapted TYT radios.? I have been working with Scott at Repeater Builder and using his supplied TYT DB9 adapters and the connections are correct.? However, I read in another document from another user that he had the TYT and VARA working at a speed equivalent?to the Alinco so I assumed (perhaps wrongly) that the TYT would work with VARA Wide mode.? The TYT is transmitting and the gateway is responding, but no data is passing. Once or twice Winlink shows a connection, but then drops the session without sending or receiving.? I have tried setting VARA to narrow mode, but it must not be working with the RB interface. I'll contact you directly to see about buying you interface and adapter cables.

Bob

W0EG?

On Wed, Feb 19, 2025 at 9:06?AM Kevin Custer via <kuggie=[email protected]> wrote:

Bob,

I see that you responded to the wrong thread this morning - so I'll assume you're still having the issues.

The - but I feel compelled to respond - anyway...

My guess is that you somehow have the wrong RIM Interface or the wrong accessory jack wiring, or both.? Let me explain...

The TYT TH-9000 radio is only 1200 / VARA FM Narrow capable.? As such - and unlike the Alinco DR-135, both 1200 and 9600 (type) baud receive audio doesn't exist on the DB9 accessory connector - only 1200 baud is available there.? Depending on who made the DB9 adapter cable for your radio, it may not wired to give your RIM Lite receive audio on the correct pin, or you have the wrong RIM Lite that doesn't take the audio from the correct pin on the DB9 accessory connector.? Unlike DRA's, RIM Lite interfaces made for digital data do not allow you to switch between the 1200 and 9600 audio source pins.? As such - you need to make sure the DB9 accessory connector puts the receive audio to the correct pin of the RIM Lite - or the interface won't work.

Additionally - and unlike the Alinco DR-135, switching between 1200 and 9600 transmit audio is not possible on a TYT TH-9000.? Again - the TYT TH-9000D is only 1200 baud (VARA FM Narrow) capable, and depending on what pin your interface's transmit audio appears on - it might not be making to the radio's modulator.? Switching the TX audio on a RIM Alinco 9600 requires surgery.

You claim you have receive audio on "Pin 3" of the DB9, but receive audio should exist on pin 2 - .? So - I'm confused as to whether you have a receive or transmit audio problem.? It's possible you have both.? Transmit audio would appear on pin 3 of the DB9 with a RIM Alinco 9600, but pin 3 isn't connected to any DB9 pin as per the above document.

You indicate that you own a RIM Alinco 9600, but that interface is not wired correctly for a radio that's properly pinned for 1200 baud.? You need a "RIM Alinco" - not a "RIM Alinco 9600" for your TYT TH-9000 radio.? Otherwise - you could rewire the accessory jack to connect the proper pins - making note of what you created, as it no longer conforms to the 1200 baud standard.

---

I also make a retrofit accessory jack for the TYT TH-9000, and it's pinned exactly like the Alinco DR-X35 considering the "1200" baud audio type.? It's called the "AC-25". When someone wants to connect one of my DRA's to a TYT TH-9000 radio, I recommend they additionally purchase one of my "Alinco-6" adapters.? This adapter converts the DB9 to a Mini-DIN-6 that follows the industry standard pinout.? This board allows either 1200 or 9600 transmit audio to be selected, and either 1200 or 9600 receive audio to be selected when paired with a Mini-DIN-6 equipped RA or DRA.? Selection is done by moving mechanical (push-on) jumpers onto header pins - no soldering is required.? When additionally paired with a DRA-36M, this combination makes a fool-proof installation that works properly on a TYT TH-9000D for VARA FM Narrow, and can additionally be used on Alinco DR-X35 radios for either VARA Narrow or Wide.

This isn't a sales pitch - it's to show you that alternative products are available, that might be easier to user and are certainly more versatile.

Hope this helps...

Kevin


On 2/17/2025 9:49 AM, Bob W0EG via wrote:

Do you need to change any settings in VARA ?or the interface when you switch between the DR-135 and the TD-9000D?

On Mon, Feb 17, 2025 at 9:15?AM Rick Muething via <rickmuething=[email protected]> wrote:

Bob,

I have been using VARA FM with my DR-135 and also a TYT TH-9000D. I added the 9 Pin D connector to the stock TH-9000D with the same DB9 pinout as the DR-135.? I am using the DRA-36 Masters modem for both.?

73,

Rick Muething, KN6KB? Winlink Development Team?

On Sun, Feb 16, 2025 at 6:17?PM Bob W0EG via <morrisnc7=[email protected]> wrote:

[Edited Message Follows]

I have two TYT TD-9000D low cost Chinese radios and am having trouble getting them to work with VARA FM.? I thought I had this working with the Repeater Builder RIB ALINCO 9600 and the DB9 adapter cable, but apparently not.? Note that the RIM ALINCO 9600 works flawlessly with the Alinco DR-135. I have set this up on at least five units with no issues.? The TYT DB9 adapter cable from Repeater Builder is built correctly pre my continuity checks and the pinout information I have.? the TD-9000D will transmit to the gateway and the gateway responds, but VARA and Winlink do not connect. I can see receive audio on the DB9 pin 3 with a scope.? Same RIM ALINCO 9600 and computer with Winlink Express and VARA FM? that works on the DR-135.? Tried both narrow and wide.? Is anyone here having success with the TYT TD-900D?