Hi all,
I tried a search but couldn't come up with anything related to this
My UHF SP-50 has been set up with the 440 amateur band channels using the hex-edited MDF file. RX appears to work on all channels, but TX appears only to work on channels > 445MHz. When the PTT button is pressed on these < 445MHz channels, the TX lamp turns on for about a half second, then goes out.
Any one ever hear of this happening?
Cheers
SP50 Programming TX
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Re: SP50 Programming TX
Some of the hi split, 450- 470, SP50's will not work down that low. You may be able to tweek the radio transmitter to go that low, to 440.
Could be as simple as a slight tweek to the TX VCO to get a solid lock.
Could be as simple as a slight tweek to the TX VCO to get a solid lock.
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- New User
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- Joined: Sun Mar 17, 2013 6:04 pm
Re: SP50 Programming TX
Hi Will,
Thanks for the reply. Is the VCO adjustment done via a pot on the board, or is it done in software? I don't have a copy of the SP50 service manual, do you happen to know where I might be able to find one?
Thanks!
Thanks for the reply. Is the VCO adjustment done via a pot on the board, or is it done in software? I don't have a copy of the SP50 service manual, do you happen to know where I might be able to find one?
Thanks!