The NBS-800 series comprises of the 804 multiband (45dB of gain on UHF) and the 801 single input (39dB of gain) full band distribution model. Maximum output level is 118dBuV according to DIN. All NBS series amplifiers are available with a choice of LTE filtering modes designated C-69 for 862MHz, C-60 for 790MHz and C-48 for 694MHz. This is especially useful for the NBS801-C69 distribution model where you may be using frequencies up to 862MHz.
Using the cast case is the heatsink and drawing only 8 watts from the mains the 800 series is something of a cool customer and is especially well suited to challenging environments.
The NBS-604 amplifier carries all the functions of the 804 variant including mast amplifier powering of 12-24VDC up to 100mA, 0-18dB of input attenuation and a -30dBB test point but with the reduced gain of 39dB and a maximum output level of 112dBuV.