I bought a small, rechargeable Bluetooth speaker with an Aux input jack. I can use it for more than just my KX3 that way. It's relatively small, a little on the weighty side, and the battery lasts a long time. Charges with microUSB fairly quickly. I have not noticed any effect on the speaker from transmitting on the KX3, whether wired to the Aux jack via shielded 3.5mm jumper cable, or by Bluetooth transmitter (below).
Tribit XSound Go: https://www.amazon.com/gp/product/B07594HZ6Y I do have a small Bluetooth transmitter I can plug into the radio and then pair the speaker or my BT headset, but I rarely use it. The model transmitter I got is no longer available, but these look decent: (Note: I have NOT tried these transmitters. I may get one of them, because they're BT 5.0 and have lower latency.) https://www.amazon.com/TaoTronics-Bluetooth-Transmitter-Receiver-Simultaneously/dp/B01EHSX28M https://www.amazon.com/TaoTronics-Bluetooth-Transmitter-Receiver-Wireless-dp-B01IV1H1ME/ -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Mon, Aug 3, 2020 at 11:23 PM Jim Brown <j...@audiosystemsgroup.com> wrote: > On 8/3/2020 6:58 PM, Ron Manfredi wrote: > > I tried both an amplified Motorola speaker and a small MFJ unit, but > > when using SSB (10-15 Watts) at home into a beam or into a dummy load I > > can hear myself quite clearly in the speaker, so RF is getting in > somehow. > > Powered speakers have a power amplifier built in, which are notorious > for RF susceptibility. The causes are typically poor shielding and/or > Pin One Problems, but things we do wrong (or fail to do) in the shack or > with our antennas can put lots of RF into a powered speaker, making it > more likely for RFI to occur. Motorola products are generally designed > for UHF 2-way applications, and are unlikely to have been designed for > use around HF transmitting antennas. > > What antenna system are you using? If it's some form of end-fed wire > ending in the shack, does it have a counterpoise? It should. If up in > the air with a feedline, does it have a serious common mode choke at the > feedpoint? How is your station bonded? How is it grounded? > > Station grounding and bonding is covered here. > http://k9yc.com/GroundingAndAudio.pdf > > RFI is covered here. The chokes recommended for killing noise would also > appropriate for cables feeding the speaker (both power and audio). > http://k9yc.com/KillingReceiveNoise.pdf > > Transmitting chokes are covered here. http://k9yc.com/2018Cookbook.pdf > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ard...@gmail.com > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
