Has anyone else had this problem?
After all the confusion of finding an understandable and useful manual (it was in the USB dongle that came in the box, I thought that was for firmware-only so never looked on it), I finally have exhausted all options and cannot get the radio to transmit a usable signal on VHF or UHF. I can hear the transmissions on an HT in the room, but no real output, and the ammeter on my power supply for it shows only a slight increase in power being drawn, maybe half an amp, no matter the "PA" setting . In addition, the receive sensitivity seems to be a lot lower on those bands, and the UHF has a constant pulse noise on the one frequency I want to tune it to, even if nobody is on it.
Has anyone else had this problem, or do I have a defective radio?
Or worse, did I transmit before knowing which output, (SMA or PL259) is the proper port, and blew the finals on VHF/UHF? That is a possibility, I agree!
In addition, here are the instructions from the 2.2 manual re: antenna ports usage:
Optional DMR module 144MHz / 430MHz input and output from ANT1.
Note:if optional DMR model. in 80 ~ 520 MHZ antenna 1, DMR and DFM mode for sending and
receiving antenna interface.Frequency in 80 ~ 520 MHZ model for SSB, the CW, AM, WFM, (NFM),
RTTY interface for TX.Antenna interface 2 in 100 KHZ ~ 80 MHZ frequency, mode for SSB, the CW,
AM, WFM, (NFM), RTTY for incoming and outgoing interfaces.Antenna receiving frequency range of
2 to 100 KHZ to 2000 MHZ.For radio inside two rf amplifier, share the different frequency band
signal amplification.So in 80 ~ 520 MHZ SSB, the CW, AM, WFM, (NFM), RTTY modulation mode, the
antenna interface 1 as launch interface, 2 as receiving antenna interface interface, need to pick up
two antennas at the same time.
No optional DMR model
,not connect.
Confusing, huh!
To make matters worse, the picture of the back of the radio in the 2.2 manual shows ANT1 as the SMA port, but on the real radio Q900 version 3 I got, that is labeled Ant2!
At any rate, neither output SO239 or SMA puts out any signal. I have the "FULL" version, with DMR, compass, GPS? modules added. --
Bob, KL7EAL Los Angeles
Robert G. Aldrich