[Ribbit-Users] APRS-K2 cable success and failure

[W4CKX]

Hello William,

Thank you for your testing report with the K2 and the iPhone lightning
headphone adapter.

I have the APRS-K1 and I am on Android.

I have read somewhere that the iPhone port implementation triggers the VOX
continuously on UV-5R (Baofeng).

Here is the source article/post and which is a good read:
https://blog.aprs.fi/2022/02/baofeng-btech-aprs-k1-iphone-problems.html?m=1

Pierre W4CKX



On Wed, Oct 18, 2023, 1:34 PM Duck Duck Goose via Ribbit-Users
<ribbit-users at lists.openresearch.institute> wrote:

> I'm using Rattlegram v1.5 with stock settings. I bought the BTECH APRS-K2
> cable (like what was mentioned in one of the videos on the Ribbit site). I
> used it with my iPhone along with the Apple Lightning headphone adapter.
> When I first plugged in my headphone adapter I selected "other device" in
> the "headphone or other device?" pop-up. I had volume set to ~50% on the
> phone.
>
> My setup looked like this (arrow direction denotes plug direction)::
>
> iPhone <-- Lightning headphone adapter <-- APRS-K2 --> HT
>
> I tried it on my UV-5R and it kept the PTT on no matter which VOX level I
> used. I quickly gave up and tried my Anytone AT-D878UVII PLUS where it
> worked perfectly with VOX set to a value of 1. I sent my message over UHF
> at 1 Watt and was able to receive it easily on my mobile unit with another
> iPhone sitting in front of the speaker.
>
> William KV2B
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