These radios operate on 144-146mHz FM and CTCSS/tone capability and offset function for use on repeaters which is handy although in Manchester there aren't really any active 2m repeaters these days.
GB3MN is rarely used and putting calls through doesn't change that. GB3MB in Bury has long since gone off air so I'll have to leave that function for another day.
One of the radios has a little sticker on the front detailing the function of different buttons and combinations of button presses. This makes operation very easy although I've not tried all the functions out properly.
The left hand side of the radio has a monitor button, PTT, lamp toggle switch and a power setting switch. Power output on high is 2.5-5w depending on voltage from the battery, 0.5w on low and 20mw on extra low.
| Type: | Amateur UHF transceiver |
| Frequency range: | 430-440 MHz |
| Mode: | FM |
| RF Power output: | Hi: 2-5 W (depending on voltage) Lo: 0.5 W El: 20 mW |
| Receiver system: | |
| Sensitivity: | |
| Selectivity: | |
| Image rejection: | |
| Voltage: | 6-16 VDC |
| Current drain: | RX: Max 65 mA TX: Max 2 A |
| Impedance: | 50 ohms / ? |
| Dimensions (W*H*D): | 58*136*30 mm (2.28*5.35*1.18") |
| Weight: | 380 gr (13.4 oz), with PB-10, antenna and handstrap |
| Manufactured: | 1990-199x (Discontinued) |
| Other: | |
| Related documents: | |
| Modifications: |
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