Kit contents:LMA415VR – Masthead UHF amplifier, single output, variable gain1 in, 1 out with class 3 filteringAdjustable gain up to 25dB for weak signal areas or longer cablesAdjust down to prevent overloadPSUFC – Power supply for masthead amplifiersLow noise mains powered unit delivers 12V via coax to mastheadsRated to 300mA and compatible with all Labgear masthead amplifiersCompact design with ‘F’ connectorsSpecifications LMA415VR Number of inputs 2 Number of outputs 4 Frequency range 470-782 / 87-230MHz Gain 0-15dB Noise Figure Typ. <2dB Max output level (IMA3 -60dB) 92dBμv Isolation between outlets 18dB RED, EMC and LVD Compliant Power required 12V DC 60mA Specifications PSUFC DC output 12VDC – Voltage tolerance 5% – Current 300mA max Connector type Type-F (female) IEC60169-24 Frequency range 5-1000MHz Signal insertion loss 0.5dB Power requirement under load 230V~50Hz max. 5W Power requirement under no load 220-240V~50Hz at <0.3W Power indicator Green LED Operating temperature 0-40oC Dimensions 60.5(L) x 35.5(W) x 24.7(H) mm
M**K
It was worth a try
I have labgear distribution and get reasonable DTv signal, excellent DAB and noisy FM signal all using in attic equipment.I thought I'd add this(combiner and amplifier) as a front end for the DTV and FM signals. As specified, the FM actually has an insertion loss so I was not totally surprised that it was all still noisy on FM. Did the amplification get me any more DTV ( Terrestrial) channels? I don't think so but will retest from time to time. So, probably totally wasted my £ on this and amp and need to look for an FM amp. YMMV
M**Y
Overpriced and fails to amplify VHF signals.
Labgear describe this item on their website as a "2 In, 4 Out, 5 – 15dB Variable Gain UHF & VHF Masthead Amplifier". While this does amplify UHF signals, it most certainly does not amplify VHF - this is not made clear in the manual and you have to look on the unit itself to find that it imposes an 8.5dB signal *loss* on VHF signals. If you wish to distribute radio FM or DAB signals, then you need to look elsewhere since even a direct connection (bypassing this unit) will give better performance.For UHF signals, this unit didn't perform too well either - I used it on an aerial receiving strong signals from Winter Hill and weak signals from Storeton and Moel Y Parc, a challenging situation for any amplifier since the goal is to strengthen the weak signals without overboosting the strong ones. In this case, the amplifier only managed to equal the performance of the Wolsey WFAV 225 LTE at full boost when the Wolsey was at half - and this only for the strong signals from Winter Hill, with the weaker signals being lost. Only at minimum boost could the weaker signals come through, and then still too weak to receive. Given that the Wolsey cost £30 compared to the £35-40 price on this unit, that's another element in Wolsey's favour (though it offers 2 outputs rather than 4).However where this unit does score better is in its construction, with a well-sealed plastic case and a metal bracket for attaching to a mast (the Wolsey is well-sealed also, but relies on a thick cable-tie for fastening). An LED is present to show that power is being received. So in cases where the environment is particularly challenging, the higher cost and weaker performance of this unit might be tolerable.
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1 month ago
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