BOS (authorities) radios
DH4PY

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Motorola radios in the collection:

Motorola HT-200
[ < click ]


was the first ever solid state handy portable. It was issued in 1962. The housing has a metal backside and is very solid. Due to today's standards the programming of the two channels is very complicated.
There are many sutes dealing especially with this radio. Technical data, however, are almost nowhere to be found.

  • HF- power: 2W
  • NF- power: 0.5 W
  • Channels: 2

    Motorola HT-220
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    is the successor of the HT-200. Its reduced size was possible by using two integrated circuits. It was issued in 1969. There also was a version with selective call and a Navy version with switchable HF output.
    A "secret service version" with a thicker housing allowed the use of special circuits.
    Many different versions for all possible authorities and professions were produced.

    The VHF- band was devided in three ranges:
    136 ..150.8, 150.8 .. 162, and 162 .. 174 MHz;
    UHF also had three ranges: 406 .. 420, 450 .. 470, and 470 .. 488 MHz .
  • HF- output: 2m: 5W; 70cm: 2W
    Motorola MX-330
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    is one of the six radios of the MX-300- series. (MX-320 to MX-360). They were built for VHF as well as UHF geliefert and had up to 8 channels. It is one of the sturdies handy portables ever built. It can be used as a mobile station by using a vehicle mounting. It can be remotely controlled. Batteries can have six sizes and 5 possible capacities; three fast charging batteries can be ordered.

    Technical data:
    Frequency:
    VHF: 146 .. 174 MHz, UHF: 403 .. 430, 420 .. 450, 440 .. 512 MHz
    Channels:
    VHF: up to 8; UHF: up to 12
    HF- output:
    VHF: 1.0, 2.5, 6W; UHF: 1.0, 2.0, 5 W
    Mode:
    FM
    Sensitivity:
    0.35 µV

    Motorola Maxar
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    is a mobile or fixed station . It used a stable housing with functional operational elements. All possible selective calls can be built in. The accessories can be adapted to all kinds of conditions.
    the collection has a one channel variant and an eight channel variant with selective call.
    Technical data:
    Frequency:
    4 m: 68 .. 88 MHz or 2 m: 146 .. 174 MHz
    Channels:
    1,2, 10
    HF- output:
    4 m and 2 m: 6, 10, 25 W
    Channel spacing:
    4 m and 2 m: 12,5, 20, 25 kHz
    Mode:
    Duplex, Semiduplex

    Motrac
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    was Motorola's most successful entry into the Land Mobile Radio market, it was the first mobile radio in the US (and possibly the world) to have a fully transistorised receiver.
    The Motrac has its own webpage:
      Motrac


    Motorola Pageboy II
    Motorola Pageboy III

    [ < click ]


    Pageboy II is a "pager", a reporting receiver for use by authorities. It uses one channel in the 4m upper band.

    Pageboy III is a USA built device; it was only used for a short period. It is unusual that it has a single digit LCD display to show the volume level. I think the engineers were just playing with the new technology. LCDs were very new when that was made.