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ΤΕΧΝΙΚΑ ΧΑΡΑΚΤΗΡΙΣΤΙΚΑ
ΓΕΝΙΚΑ
Αριθμός καναλιών ...................................................(βλ. πίνακα ζωνών συχνοτήτων)
Εύρος συχνότητας* ............................................................26.565 έως 27.99125 MHz
Κύκλος εργασίας (% σε 1 ώρα) . TX 5%; RX 5%; Σε κατάσταση αναμονής 90%
Έλεγχος συχνότητας ....................................................................................................... PLL
Θερμοκρασία λειτουργίας ..............................................................................10°/+55° C
Τάση εισόδου συνεχούς ρεύματος ................................................... 12.6 V DC ±10%
Διαστάσεις ..............................................................................150 (L)x45(A)x175 (P) mm
Βάρος ...................................................................................................................................1 kg
∆ΕΚΤΗΣ
Σύστημα λήψης .................................................υπερετερόδυνη διπλής μετατροπής
Ενδιάμεση συχνότητα ......................................1η IF: 1 0.695 MHz • 2η IF: 455 KHz
Ευαισθησία ................................................................... 0.5μV για 20 dB SINAD στα FM
...........................................................................................0.5μV για 20 dB SINAD στα AM
Ισχύς εξόδου ήχου @10% THD ............................................................. 2.0 W @ 8 Ohm
Διαστρέβλωση ήχου ...........................................................λιγότερη από 8% @ 1 KHz
Απόρριψη εικόνας ........................................................................................................65 dB
Απόρριψη γειτονικών διαύλων ...............................................................................65 dB
Αναλογία σήματος/ θορύβου ..................................................................................45 dB
Κατανάλωση ρεύματος σε κατάσταση αναμονής .......................... 12.6 V: 450 mA
ΠΟΜΠΟΣ
Ισχύς εξόδου ............................................................................................................. 4W max
Διαμόρφωση ................................................................................ AM: από 85% έως 95%
............................................................................................................. FM:1,8 KHz ± 0,2 KHz
Απόκριση συχνότητας ................................................................................ 300 Hz/3 KHz
Αντίσταση εξόδου ............................................................................................. RF 50 Ohm
Αναλογία σήματος/ θορύβου ....................................................................... 40 dB MIN
Κατανάλωση ρεύματος ......................................................................... 12.6 V: 2500 mA
* (καλύπτοντας όλες τις εγκεκριμένες ευρωπαϊκές μπάντες συχνοτήτων)
Όλα τα χαρακτηριστικά της συσκευής υπόκεινται σε αλλαγές χωρίς πρότερη ειδοποίηση.
Ένας εύκολα προσβάσιμος διακόπτης θα πρέπει να συνδεθεί στο καλώδιο εγκατάστασης,
ο οποίος θα αποσυνδέει και τους δύο πόλους ταυτόχρονα.
Με το παρών, η CTE International δηλώνει ότι το Midland 248XL συμμορφώνεται με τις
βασικές οδηγίες και κανονισμούς 99/05/EC.
44


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