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Looking for info on Relm BK DPH digital

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mancow

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Anyone here have any experience with the Relm BK DPH series Vhf P25 portables? I am curious if you have to have a special cable or will the regular old DB25 style cable work?

Also, is the software version specific like Motorola or will any revision work?

What about keyloading? Will a regular Motorola T3011 work or is there specific product?

What about a keyload cable? How does that work?
 

tbiggums

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I'm pretty sure the old cables for the EPH's will still work with the DPH's. I do remember hearing or reading something about not using the 115200 baud rate setting in the software unless your programming cable has an active RS-232 buffer built in it.

I don't think they're as picky about the programming software as Motorola radios. You can create a codeplug from scratch in DPH Edit.

I think you'll be out of luck on keyloading with the "-DX" KVL. Most non-Motorola P25 radios keyload in "CKR" mode, which means you need a KVL-3000 or KVL-3000+ with that capability.

I think the DPH's keyload cable just requires two wires: data and ground. I don't think there are any pins that need to be shorted to ground to put the radio in keyload mode.
 

mancow

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Thanks for the replies and info.

I am still looking for someone with a service manual that help me out with the identification of a few parts and issues. If you have one and can help please PM me.
 

mancow

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I managed to reverse engineer it far enough to fix the VCO and the damage at the injection point by replacing a couple of open surface mount coils. It now transmits rock solid on frequency and sounds great in analog and P25. It receives too but is horribly deaf.

If I could only find someone that knows what the RF preamp part is. :evil:
 
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