Hello ... i got a pni 6500 to keep going for now at EU band ... but i am always curious & touching things, so i set it my self to export mode (8W) for experimental purposes ...
Inexperience & accidental, got a smaller power supply at 3 Amps but at export mode seems consuming 3.70 Amps (i mention this, in the case the power supply causing glitches, did not check it yet if this is the case, but i don't think so)
PNI was set to EU40 band by default ... First thing was to check with my pl-990 if was transmitting ok, even was test in very close distance looks was the correct freqs & transmission was ok as well at first glance
Started to checking multi rooms, so i end up at CE/UK band ...
1) the unit there, from time to time (not always) seems randomly ... when i press the AF button to change from UK to CE (EU FM) band ... will transmit 10HZ left, example at ch4, 27004 and not 27005
2) sometimes going back to UK Band or swapping many times back to CE band ... i am not getting any signal at the channel freq the unit was set (example ch4 at 27005 mhz pl-990 will not bring up any signal)
Both cases fix by turn off & back on the unit ...
It may be issue caused by the lower power supply, it may be an other firmware the unit i got (example newer) from the olders pni's 6500, it maybe just mine ...
3) An other small issue, again randomly, but very rare ... when i press the AF button to change the AM/FM mode it turns on the squelch instead of the modulation
It looks like if playing with the buttons very fast/quick & very often it has bad effect
How ever users of this model keep an eye if this is the case with other units ... will send email to PNI regarding these issues
And i have find one more way alternative to change multi rooms (as far search for it, no one mentioned) instead of pres & hold AF > turn on the unit > use the arrow/channels buttons to change bands > switch off > switch back on
--> Press & hold the EMG button > keep pressing switch on the unit > while keep pressing the EMG button change with the arrow/channels buttons the band > now let the EMG button > done , not need to run off/on again (video below)
https://youtu.be/J7AtTivLif8
Perhaps the issue with unstable transmissions caused when i was using this method ...
Did not check again ( & will delay to check lol) because once i let it at EU band (changed as the manual says) & stopped playing with all buttons very fast changes ... the unit perform well & i got proper DX in France & south Greece at Laconia very far from me
(DX it may be connected with the issue transmission, it may not ... but if works, do not touch again)