[Elecraft] Unable to transmit on 147.87 FM with K3+xvtr

[Ron D'Eau Claire]

I believe that's the case, Ed. The K3's band pass filters roll off at 30
MHz. The K144XV option does cover the whole 8 MHz of the 2-meter band but
does it in two bands that switch automatically and seamlessly as the K3 is
tuned from 144 to 148 MHz. The main K3 never tunes beyond 28 to 30 MHz. The
K144XV switches the local oscillator frequency as needed to do this. 

If practical, you might consider changing the L.O. frequency in your
transverter to shift the tuning range to reach the repeater frequencies. 

Ron AC7AC


-----Original Message-----

Having sold all my other radios in my KX3 "garage sale", I now have 
to rely on using the K3 with my DEMI 144-28 transverter for operating 
on local 2m repeaters.  I thought the K3 was capable of providing 
drive on 28-32 MHz when in transverter mode so the whole 2m band 
would be covered.

I get 0.73mw (-1.5 dBm) max drive at 146.52 MHz (K3=30.52-MHz) but 
only -15 dBm indicated at 147.87 (K3=31.87 MHz).
ergo no output on 2m much above 30.5 MHz due low drive from the 
K3.  The K3 does receive the entire 2m band (covers 28-32 MHz).  BTW 
the max drive is 1.8mw from 28-30 MHz.

I guess this will mean I am unable to use many of the 2m repeater 
frequencies (146-147.99) until I receive my new KX3.  Hopefully it 
can generate 1-2w min. up to 32 MHz.  If not then I will have to 
modify my transverters to have two LO frequencies to cover that range 
(116 and 118 MHz).


73, Ed - KL7UW, WD2XSH/45
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BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-?
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