Product Detail

Generals. The TMR 8 is a microwave link receiver that can carry simultaneously 1 video and up to 4 high-quality 15 kHz analog audio programs. The input RF frequency is in the 5.4 - 9.9 GHz frequency band. The audio channels are fully compatible with the ITEL digital audio codecs TD/16 and RD/16 (2-channels).

Features. Some TMR 8 microwave characteristics are:
-the A/V intermodulation almost canceled;
-the capacity to accept simultaneously 1 video, up to 8 digital audio programs, and up to 4 x 4800 bps data channels;
- the easy RF frequency setting with a 125 kHz steps digital PLL. No tuning is required within 100 MHz range.

Antenna connection. ITEL parabolic antennas enable the direct connection to the microwave feeder without wave-guide losses.

Metering. A front panel digital multimeter and alarms permit to check audio and video levels, RF received signal level, PLL lock and squelch status. The equipment meets or exceeds the international standards for safety and electrical specifications.


	TMR 8 Microwave Links
	Generals. The TMR 8 is a microwave link receiver that can carry simultaneously 1 video and up to 4 high-quality 15 kHz analog audio programs. The input RF frequency is in the 5.4 - 9.9 GHz frequency band. The audio channels are fully compatible with the ITEL digital audio codecs TD/16 and RD/16 (2-channels). Features. Some TMR 8 microwave characteristics are: -the A/V intermodulation almost canceled; -the capacity to accept simultaneously 1 video, up to 8 digital audio programs, and up to 4 x 4800 bps data channels; - the easy RF frequency setting with a 125 kHz steps digital PLL. No tuning is required within 100 MHz range. Antenna connection. ITEL parabolic antennas enable the direct connection to the microwave feeder without wave-guide losses. Metering. A front panel digital multimeter and alarms permit to check audio and video levels, RF received signal level, PLL lock and squelch status. The equipment meets or exceeds the international standards for safety and electrical specifications.




	TMR 8 Microwave Links

	Overall BB/BB specifications (-43 dBm at receiver input) BB amplitude/frequency response (5 Hz÷9.1 MHz) within 0.9 dB Video amplitude/frequency response (5 Hz÷5 MHz) within 0.5 dB Group delay in video band (5 Hz÷5 MHz) within 20 ns Differential gain ≤ 2 % Differential phase ≤ 2° Audio channels frequency response (30 Hz÷15 kHz) within 0.5 dB Audio channels THD (1 kHz, 0 dBm) ≤ 0.3 % Receiver characteristic Input RF frequency: TMR 2 models 1.3 – 2.7 GHz TMR 4 models 4.2 – 4.8 GHz TMR 8 models 5.4 – 9.9 GHz TMR 10 models 10.0 – 12.7 GHz TMR 14 models 12.8 – 15.0 GHz TMR 24 models 22.5 – 24.5 GHz IF output: Standard models 1.1 – 1.4 GHz TMR/70 models 70 MHz Input level from -45 to - 5 dBm (50 W) Input connector N female Receiver noise figure < 8dB(5dB typ.) Image frequency rejection > 65dB Video de-emphasis (by-passable) C.C.I.R. 625 lines BB/Video output level 1 Vpp (75 W) Video output connector BNC Audio output level (Df = 75 kHzp) -3 ÷ +12 dBm (600 W bal./unbalanced.) Audio de-emphasis (bypassable) 50/75 µS Power supply AC 110/220 ± 15% , 50/60 Hz Operative temperature range from -10 to +45 °C Operative humidity range < 95%

	ITEL S.r.l. TELECOMUNICATIONS AND BROADCASTING SERVICES Via Friuli, 6 - 33074 Fontanafredda (PN) - ITALY Tel. +39 0434 997667 - Fax. +39 0434 997687