User's Manual
Digital Plug-On Transmitter
Rio Rancho, NM
19
21750 Barrel Adapter 
This polarity reversing adapter may be needed to 
correct for asymmetrical current draw in some P48 
powered condenser microphones, including older 
Neumann 100 Series, Rode NTG3 and others. If your 
microphone does not power on correctly when used 
with these transmitters, insert the adapter between the 
transmitter and microphone. 
5510 Flash Memory Card 
Flash Memory Card. MicroSDHC 
toSD Adapter included.
AMM(xx)
Whip antenna; straight. Specify frequency block (see 
chart below). Included with unit at purchase.
About Whip Antenna Frequencies:
Frequencies for whip antennas are speciļ¬ed by the 
block number. For example, AMM-25 is the straight 
whip model cut to the block 25 frequency.
L-Series transmitters and receivers tune across a 
range covering three blocks. The correct antenna for 
each of these tuning ranges is the block in the middle 
of the tuning range. 
  Band  Blocks Covered  Ant. Freq.
A1 470, 19, 20 Block 19
B1 21, 22, 23 Block 22
C1 24, 25, 26 Block 25
MCA-M30 Barrel Adapter
Mic adapter for Earthworks M30 
microphone with HM, DPR and 
UH400a/TM transmitters. 
This adapter may be needed if 
you are experiencing noise or 
distortion with measurement 
microphones, particularly the 
Earthworks M30. The adapter has a common mode 
choke for suppressing RF noise. If your microphone sig-
nal exhibits the problems listed above when connected 
to a UH400, HM or DPR transmitter, insert the adapter 
between the microphone and the transmitter. Insert the 
adapter between the transmitter and microphone to al-
leviate these issues.
MCA5X 
This is an optional adapter for connecting a lavaliere 
microphone to the DPR or HM transmitters. TA5M to 
XLR3-M connectors. Passes transmitter phantom power 
to bias the electret lavaliere microphone. Includes zener 
protection to limit bias voltage to protect the microphone 
if transmitter phantom power is set too high.
MCA-TPOWER
This cable adapter is to be used 
with the UH200D, UH400, HM 
and DPR plug-on transmitters 
with T-powered microphones. It 
will protect a T-power mic against 
the 48V phantom power setting 
in the transmitter while allowing 
normal operation. The transmitter should be set to the 
15V position for best operation and minimum battery 
drain. 
PHTRAN3-A
Replacement leather pouch with clear plastic screen 
cover, rotating belt clip and snap closure. Included with 
unit at purchase.
Replacement Parts and Accessories 










