My White one has a USB Micro B connector (like some older Samsung nor other Android phones) and a small on/off switch that is surface mounted. The black ones I have seen use a USB C which it more like the newer Samsung phone
Personally I hate USB Micro B for a power cable (I have replace many on different pieces of equipment) the Mini B was a little better, but still not a good power connector. I am not too familiar with the USB C, but stil surface mount connectors aren't made for that application
Just my $0.02
Frank
toggle quoted message
Show quoted text
On 8/31/2019 3:03 PM, Warren Allgyer wrote:
One difference I noted between my white unit and my black one: The front and back panels of the white unit are unshielded, painted PC board. The black unit has aluminum front and back panels.
So I wondered if one was better shielded than the other. I laid my 5 watt, 450 MHz handheld antenna on the face of the VNA and keyed the transmitter. Then I moved the HT approximately one foot away and retested. The resulting interference comparison is shown in the attachment.
Short answer: "Nope". No difference whatsoever. My recommendation would be not to key a transmitter in the vicinity when making critical measurements. Practically speaking I think the interference is surprisingly low. And the metal panels make no difference.
WA8TOD
