# BTECH 50x2 Gen. 1 Digirig and AllStar Link **URL:** \ **Category:** Uncategorized\ **Tags:** signal-cos, btech-uv-50x2, mode-allstar\ **Created:** [November 6, 2023, 5:03pm UTC](https://forum.digirig.net/t/btech-50x2-gen-1-digirig-and-allstar-link/2597 "2023-11-06T17:03:29Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Adam](https://forum.digirig.net/letter_avatar_proxy/v4/letter/a/4af34b/32.png) [@Adam](https://forum.digirig.net/u/Adam)\ **Post date:** [November 6, 2023, 5:03pm UTC](https://forum.digirig.net/t/btech-50x2-gen-1-digirig-and-allstar-link/2597/1 "2023-11-06T17:03:29Z")
I have a Btech 50x2 Gen 1. My question is about using this radio as an AllStar node. Are there any special solder traces that need to be cut/made on the Digirig board itself due to the Btech 50x2 not having a real COS/COR. Or is the digirig a plug and play interface for AllStar Link and Echolink? Thanks, Adam KE8ONK/WRDQ257 ---
**Author:** ![Adam](https://forum.digirig.net/letter_avatar_proxy/v4/letter/a/4af34b/32.png) [@Adam](https://forum.digirig.net/u/Adam)\ **Post date:** [November 13, 2023, 5:44am UTC](https://forum.digirig.net/t/btech-50x2-gen-1-digirig-and-allstar-link/2597/2 "2023-11-13T05:44:14Z")
So I picked a couple of these premade cables from the link below. I’m gonna have to replace an RJ45 plug with a 3.5 trrs plug to work with the Digirig, but maybe I won’t have to gather the parts to make one from scratch. [https://www.argentdata.com/catalog/product\_info.php?products\_id=209](https://www.argentdata.com/catalog/product_info.php?products_id=209) The RJ45 jack on the front panel provides all radio interface connections. Looking into the front of the connector, the pin functions, from left to right, are as follows: 8- Power in (typically used with radios that provide a +8v output) 7- Unused 6 - Audio in (from radio’s speaker output) 5- Push-to-talk output 4- Ground 3- Audio out (to radio’s microphone input) 2- Ground 1- Squelch / COR input The Squelch / COR input is optional. When this signal is available from the radio (usually from an accessory or data connector) it allows the repeater to be operated without the VOX delay. ---
**Author:** ![Adam](https://forum.digirig.net/letter_avatar_proxy/v4/letter/a/4af34b/32.png) [@Adam](https://forum.digirig.net/u/Adam)\ **Post date:** [November 15, 2023, 1:59am UTC](https://forum.digirig.net/t/btech-50x2-gen-1-digirig-and-allstar-link/2597/3 "2023-11-15T01:59:52Z")
I’ve installed and set up AllStar in a laptop I had sitting around. Fabbed up cables to work with the radio, and the Digirig. Verified with a multimeter there are no shorts in the fabbed cable. I’ve tried the Digirig with several USB cables, and several programs, and 3 different devices. Can’t get anything out of anything. ![20231114_205356](https://forum.digirig.net/uploads/default/original/2X/8/800267cf1f140ff03266d6f964df452c1dcc3ea6.jpeg) ![20231114_205344](https://forum.digirig.net/uploads/default/original/2X/9/9fc1fa46e9532b73bfb319397e961674e2911069.jpeg) ![20231114_205321](https://forum.digirig.net/uploads/default/original/2X/4/47c3f4c45a48b4630ea996e9d29d7024280900ae.jpeg) ---
**Author:** ![Constrainted](https://forum.digirig.net/user_avatar/forum.digirig.net/constrainted/32/2219_2.png) [@Constrainted](https://forum.digirig.net/u/Constrainted)\ **Post date:** [November 15, 2023, 2:47pm UTC](https://forum.digirig.net/t/btech-50x2-gen-1-digirig-and-allstar-link/2597/4 "2023-11-15T14:47:05Z")
You have put in a lot of work to get to this point. I do not know about all-star. You might be able to test the audio chain from computer ↔ Digirig ↔ BTech by putting a tone from the computer to the radio and monitoring. Perhaps use an APRS client or fldigi to put the tone out while the radio is in a standard mode on a simplex frequency. Denis K0TX has a guide [Troubleshooting Digital Modes – digirig](https://digirig.net/troubleshooting-digital-modes/). 73 Constrainted ---
**Author:** ![Adam](https://forum.digirig.net/letter_avatar_proxy/v4/letter/a/4af34b/32.png) [@Adam](https://forum.digirig.net/u/Adam)\ **Post date:** [November 17, 2023, 7:17pm UTC](https://forum.digirig.net/t/btech-50x2-gen-1-digirig-and-allstar-link/2597/5 "2023-11-17T19:17:02Z")
So I’ve spoken to an engineer about this. His opinion is radios without a proper COS are just not suitable with any FOB for use with AllStar. ---
**Author:** ![Constrainted](https://forum.digirig.net/user_avatar/forum.digirig.net/constrainted/32/2219_2.png) [@Constrainted](https://forum.digirig.net/u/Constrainted)\ **Post date:** [November 17, 2023, 7:52pm UTC](https://forum.digirig.net/t/btech-50x2-gen-1-digirig-and-allstar-link/2597/6 "2023-11-17T19:52:19Z")
@Adam That is disappointing. If you do resume the project with another radio, there is a [discussion about Digirig’s COS implementation](https://forum.digirig.net/t/cos-connector-use/756). 73 Constrainted