RF test connection on the DP4000 series.

The MOTOTRBO DP4000 series radios have a different antenna connector. This connector is for the antenna only.

To carry out tests on these radios, a  RF adaptor is required. The adapter is held in place by means of a clamp (Holder). The part number for these two items are as follows:
  • PMLN6154A RF Adaptor adapts radio’s antenna port to BNC cabling of test equipment.
  • PMLN6155A RF Adaptor holder which holds the RF connector to radio.
The RF Adapter plugs in on the back of the radio:

16 comments:

  1. The guide is very useful. However, most of the people in India find it difficult to buy RF Adaptors. These type of RF Adaptors are easily available at Sona Technologies

    ReplyDelete
    Replies
    1. The content here is not aimed at the general public. Using any adapter not approved by Motorola will (at the very least) invalidate the product warranty.
      In any case, these connectors are available from Motorola and their respective Partners, of which there are 46 in India.

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    2. http://sonatechnologies.in/ seems to be down at the moment. I only get "Fatal error: Out of memory (allocated 3670016) (tried to allocate 7680 bytes) in /home/sonatech/public_html/sona/wp-includes/l10n.php on line 515".

      Delete
  2. Hi Wayne,

    Quick question for you with regards to the antenna output socket. If I wanted to temporarily connect an external antenna to a DP4000 series radio would I be able to connect it using the primary antenna socket as I only appear to get just under 1W out from this socket, unlike the test socket when I get full power.

    Does the above mean that Motorola OEM portable antennas are optimized to use the main socket?

    Any answers much appreciated.

    Robbie

    ReplyDelete
    Replies
    1. Yes, the antennas have been optimized for the radio.

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  3. Thanks Wayne, so if I was to put an adapter on the antenna socket and attach an external antenna I wouldn't get the designated output power the 4 watts I was expecting? But the design of the Motorola portable antenna/connector means it gets the full power output?

    Apologies for all of the questions, I'm just trying to rule out my options.

    Kind regards,

    Robbie

    ReplyDelete
    Replies
    1. When the antenna is used, the electrical counterpoise exists in the radio chassis and users body. The radiating element is the antenna itself.

      An external antenna (via an adaptor) implies that both the ground and "hot" need to be presented to the co-ax. Since the antenna socket only provides the "hot" (and no ground) there is no complete circuit and there are losses (presumably due to the mismatch). This explains why you only see 1W via an adaptor.

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  4. Thank you very much Wayne! Much appreciated.

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  5. Buongiorno,
    Una domanda ma ci sono degli adattatori per la serie DP, da attacco motorola ad attacco BNC o PL per collegare un eventuale antenna esterna?! Saluti Luca IU3EGO

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  6. Non è possibile collegare un'antenna esterna al portatile nel modo di descrivere attualmente. La configurazione di cui sopra può essere utilizzato solo per il test e non per uso regolare giorno per giorno. (via Google Translate. Sorry my Italian is really bad)

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  7. hello sir ,
    i have a mototrbo Xir P8668 radio set. i want to get the out of said radio set through external GP antenna . which types of socket or RF connector use to get RF output through GP antenna.. and picture also send....thanks

    ReplyDelete
    Replies
    1. I don't understand your question. Are you referring to GPS? Or do you want to connect a GP series radio antenna to this radio?

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  8. Hallo Wayne,

    wir haben ende Oktober in deiner Nähe eine Veranstaltung und dafür eine Repeater Aufgestellt. Ich würde gerne einige Fahrzeuge mit DP3401 Ausrüsten und ein Standort per GPS-Übertragung verfolgen. Leider habe ich Gemerkt das das SignalimFahrzeug doch sehr Abgeschirmt wird! Muss ich die Originalantenne für GPS für das Gerät nehmen oder kann ich auch einen Adapter auf BNC mit einer Scheiben Klemm-Antenne benutzen?

    Ich kann dir auch das Programmierfile mal Schicke den ich meine daheim müßtest Du es Empfangen können ;-)

    Gruß und Danke
    Jan

    ReplyDelete
    Replies
    1. Das GPS Antenna wird im das Funkantenna eingebaut - dies gilt nur für das DP3000 serie. d.h. wenn man ein externe Antenna zu der Funkgerät reinstecken, verliert man GPS. Auf die DP4000 serie steckt das GPS antenna innderhalb des Funkgerät aber *bisher* ist der kopplung ein externen Antenna nicht möglich.

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  9. Hi Wayne, do you have a technical description of the PMLN6154 adaptor, or a technical drawing showing dimensions etc?

    ReplyDelete
    Replies
    1. Sorry, I am on holiday at the moment with no access to my work computer. There would probably be some details of this in the Basic Service Manual, if that helps.

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