Re: UDR56K-4 current draw / fuse

Tom Saunders <n7oep@...>

E.F. Johnson used them for many years on their commercial land mobile radios in the 1980s and 1990s. Don't know if they still do or not.
Tom n7oep

Sent from my iPhone (I think)

On Apr 15, 2013, at 11:37 AM, "k7udr" <bhhoyer@...> wrote:


I note that no radio manufacturer uses power-poles nor do they appear in any automotive, marine, aviation or appliance applications that I am aware of. I have used them and the experience has been similar to what others have reported.

The physical contact on the RAST-5 is identical to the contacts in the familiar T-Connector found on many VHF/UHF Mobile Radios. I prefer board mount connectors over pig-tails from a manufacturing perspective.

In a pinch anyone with a standard crimp tool and a couple of female quick connects can build a reliable power cable for the UDR. As John stated, please use the connector of your choice on the other end, be it power-pole, cigarette lighter etc...

Bryan - K7UDR

--- In UniversalDigitalRadio@..., Tyrell Jentink wrote:
> I'm still playing the PP game, and all my equipment is converted over...
> but I find them to be frustrating for all the reasons you cite, and am
> considering switching to a more secure connection.
> That being said, I'm a starving college kid, and only have one rig that
> moves from my desk and my Jeep quite regularly, making straight wire
> connections less feasible. I'm also concerned about wearing out a molex
> connector under heavy usage. I do want the same connector on all equipment,
> but your quite right about never interconnecting with other station's
> equipment... it's hard to even imagine a need, but I intend to carry a
> pigtail from my eventual solution to PP in my go bag, just in case.
> Bringing it back to topic, I'm quite used to having to build pigtails for
> all my radios. I like to preserve the factory connectors when possible, and
> run to PowerPoles from there. Complaining about the factory connector seems
> rather silly.
> On Apr 15, 2013 10:07 AM, "qrv@..." wrote:
> > **
> >
> >
> > Powerpoles add cost & unpredictability.
> >
> > They are not waterproof (an odd choice for emcomm), they must
> > be assembled carefully or are prone to failure, they tarnish
> > over time and only partially self-clean during connect-disconnect
> > cycles (when tarnished they demonstrate high-loss for low current
> > and high current demands), and the most common connectors are
> > unsuitable for high current apps (requiring a higher amp-rated
> > non-interconnectable version of the PP 75a vs 35a). They are
> > also easily bumped loose, creating intermittent connections, or
> > completely apart.
> >
> > I removed all of them and went back to sure-connect bare wire
> > and crimped wire connectors (they are cheap, simple, available
> > everywhere) and terminals. Reliable & simple.
> >
> > Most users almost never, if ever, interconnect with anyone nor
> > do they frequently connect and disconnect most of their gear -
> > once set up.
> >
> > IMHO, YMMV ...
> >
> > > Was there any thought into using Anderson Powerpole connectors? These
> > > seem to have grown in popularity in the Amateur community. I've
> > > converted about 80% of my equipment, including power supplies, to
> > > PP.
> > >
> > > 73, Brad KA3YAN
> >
> > --
> >
> > Thanks! & 73,
> > David Colburn
> > I don't google I SEARCH!
> > Network:
> > Restored to design-spec at Heaven's gate 1Cor15:22
> >
> >

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