EP 71/ 8
- 112 -
EP7 TRANSMITTER EQU[PMENT
FM Translator Equipment. Bay mounted for installation
inside a building. ReceLves up to three frequency
modulated signals in Band [I and converts them to other
channels in the band Nithout demodulation. Suffix
indicates modified version;. DD 1960/61. DD Spec 5.58.
Variable Resistance Frequen~y Modulator Drive Equipment
for VHF FM transmitters. DD 1960/61. DD Spec 5.57.
DDHB 5.26, 5.38. ACO. OBSJLESCENT.
FM Transistor Equipment. Similar to EP7/l but mounted in
two weatherproof cabinets CT2/5. DD 1960/61.
DD Spec 5.58. OBSOLESCENT.
FM Drive Equipment. Prcduces a frequency modulated
carrier of any desires frequency centre in Band 11.
Output power of 5 watts for EP7/4 and 10 watts for EP7/4A.
Includes PN3/23 with UN1/3~, UNl/34, UNl/40, UNl/48, PSl/4
(EP7/4 only), AM14/5 (EPi/4 only), PS2/37 (EP7/4A only),
AM14/3 (EP7/4A only). Selarate 89mm panel for filters
FL2/4, FL4/5l0. DD 1963. DD Spec 5.85. DDHB 5.46. ACO.
FM Translator Equipment for receiving an FM sound
transmission on any pre-delermined channel in Band 11 and
converting to another challnel without demodulating the
signal. Normally used in groups of three with associated
serial equipment to form EP7/6. Fully transistorised.
Includes PN3/23 with UNl, 38, UNl/39A, UNl/40, UNl/4l,
AM14/3, PS2/37. DD 1963. DD Spec 5.71. ACO. OBSOLETE.
FM Translator Equipment cOllsisting of three sets of EP7/5
with associated aerial equipment. Supersedes EP7/l.
Superseded by BA13/9. DD .964. OBSOLETE.
FM Drive Equipment 5W and IOW for stereo or mono
modulation. As EP7/4 and EP7/4A but with UNl/33 and
UNl/34 replaced by UNl/78md UN22/l respectively. PN3/23
with UN22/l, UNl/40, UN1/4~, UNl/78, PSl/4 (EP7/7 only),
AMI4/5 (EP7/7 only), AMI4/~ (EP7/7A only), PS2/37 (EP7/7A
DD Spec 5.129.
DDHB 5.46, 12.11. ACO. 03S0LESCENT.
5W Band 11 FM Transmitter Equipment for unattended
operation. Monophonic or stereo multiplex inputs.
PN3A/16C with MD3/3, C02/6, PS2/82B. DD 1969.
DD Spec 5.172. DDTM 5.53. EDI 10047(1)MAY70. ACO.
FM Transmitter Equipment used as a 25W Band 11 drive where
EP7L/8 is too small. P~3/23 with MD3/3, C02/6, PS2/82,
AM14/11 and power supplier. DD 1970. CANCELLED.
FM Drive Transmitter Equipment used on BA13/15, BA13/l6 to
drive power amplifiers. Modified EP7L/8 in which output