MB7PV Our Parrot Repeater is up and working as of 25 May 25
MB7PV settings are:-
TX 70.4125 MHz
RX 70.4125 MHz
TX CTCSS 94.8Hz
Narrow Band Deviation
The antenna is the Dipole on the left hand lower mid in the image, the audio signal from a Motorola GM350 Mobile radio is connected to a Simplex Repeater Store and forwarded to a another GM350 then output to the antenna so you can hear the content.
There is a one minute period for your message before the Repeater times out.
As of 7th Oct 25 HARS now owns and maintains this Repeater as well.
Here is some information which may help when you use MB7PV - The parrot repeater differs from a conventional repeater in that it uses one frequency only for Rx and TX. Its name is very apt as it talks back to you. So incoming audio signals are recorded on a digital voice recorder linked to the repeater. When the user stops transmitting, the repeater switches to transmit and plays back the audio recording. This retransmission is heard by all stations monitoring the frequency. In other words, whereas conventional repeaters retransmit the incoming signal on a different frequency while the user is talking, parrot repeaters retransmit a recording of the signal immediately after the user has finished. Thus, unlike a normal repeater which transmits as it receives, the parrot repeater is either receiving or transmitting and does not do both simultaneously. There is a one minute window for you to say your message before it times out and broadcasts.
This need for repetition makes communicating via parrot repeaters slower than through conventional repeaters. As well, there is a risk of users accidentally transmitting over one another. For this reason, parrot repeaters are most useful during emergency-type communication exercises where transmissions are normally kept short.
Parrot repeaters are very simple to build - no cavity filters or separate antennas are required. They can be accessed by a standard amateur base, mobile or hand-held transceiver.
Any feedback you may have on this new addition please contact Richard MØOFF.
TX 70.4125 MHz
RX 70.4125 MHz
TX CTCSS 94.8Hz
Narrow Band Deviation
The antenna is the Dipole on the left hand lower mid in the image, the audio signal from a Motorola GM350 Mobile radio is connected to a Simplex Repeater Store and forwarded to a another GM350 then output to the antenna so you can hear the content.
There is a one minute period for your message before the Repeater times out.
As of 7th Oct 25 HARS now owns and maintains this Repeater as well.
Here is some information which may help when you use MB7PV - The parrot repeater differs from a conventional repeater in that it uses one frequency only for Rx and TX. Its name is very apt as it talks back to you. So incoming audio signals are recorded on a digital voice recorder linked to the repeater. When the user stops transmitting, the repeater switches to transmit and plays back the audio recording. This retransmission is heard by all stations monitoring the frequency. In other words, whereas conventional repeaters retransmit the incoming signal on a different frequency while the user is talking, parrot repeaters retransmit a recording of the signal immediately after the user has finished. Thus, unlike a normal repeater which transmits as it receives, the parrot repeater is either receiving or transmitting and does not do both simultaneously. There is a one minute window for you to say your message before it times out and broadcasts.
This need for repetition makes communicating via parrot repeaters slower than through conventional repeaters. As well, there is a risk of users accidentally transmitting over one another. For this reason, parrot repeaters are most useful during emergency-type communication exercises where transmissions are normally kept short.
Parrot repeaters are very simple to build - no cavity filters or separate antennas are required. They can be accessed by a standard amateur base, mobile or hand-held transceiver.
Any feedback you may have on this new addition please contact Richard MØOFF.
