KB7MIB
Member
Take a look at the following link:
:: Uniden Australia ::
That's a remote head mobile UHF CB transceiver with a seperate 60 channel 400-512 MHz scanning receiver, in one case, that Uniden manufactured for the Australian market.
I would like to see Uniden or Whistler (or almost anyone else) manufacture similar mobile, and portable, radios for the MURS and the GMRS for the USA market.
In addition to many of the features of the UH-015SX, a MURS radio would have, on the transceiver side:
5 channels
2 watts TPO
50 CTCSS with split tone and auto decode
104 DCS with split code(?) and auto decode
(I don't know if you can set seperate DCS codes for transmit/receive, or set it for transmit only, and receive in CSQ like you can with CTCSS in some radios.)
16-key DTMF keypad for SELCALL
BIIS-1200/MDC-1200
Optionally, incorporate both analog FM and a digital transmission mode (P25? DMR? NXDN? C4FM? D-STAR DV? Something else?) according to whichever manufacturer decides to make this wishlist a reality, whatever is capable of coexisting with analog FM, and whichever modes the FCC rules & regulations allow for the MURS.
On the scanning receiver side, it would:
Receive 150.800-174 MHz minimum, up to 108-174 MHz maximum.
Have all of the capabilities of a BCD-996XT or GRE PSR-600 (or equivalent), at a minimum, within the above frequency range.
A GMRS version would have, on the transceiver side:
All 22 channels
Channels 8-14 *would be RECEIVE ONLY* by firmware
Channels 15-22 would have one button talk-around/repeater capability
5-10-20-40 watt TPO on channels 15-22
A menu setting for channels 1-7 so that you can set and forget the TPO according to the gain of your antenna, minus the loss of your coax, so as to abide by the FCC's 5 watt ERP limit on these channels
50 CTCSS with split tone and auto decode
104 DCS with split code and auto decode (see note above in regards to split capability)
16-key DTMF keypad for SELCALL
BIIS-1200/MDC-1200 (If legal in the GMRS?)
On the scanning receiver side, it would:
Receive 450-512 MHz minimum, up 380-512 MHz maximum
Have all of the capabilities of the BCD-996XT or GRE PSR-600 (or equivalent), at a minimum, within the above frequency range
Handhelds would have all of the capabilities of a BCD-396XT or a GRE PSR-500 (or equivalent) at a minimum.
(Being a GRE PSR-500 owner myself, and not owning or having any experience with the Unidens, I'm leaning towards a GRE/Whistler style of scanner, personally.)
As I understand it, if a manufacturer limits a scanner to a limited range, it should reduce birdies, images, etc., versus having the 25-1300 MHz coverage of scanners today. They can achieve better performance out of a limited range receiver, than they can with a wide range receiver.
With the MURS radio not being capable of transmitting outside of the 5 approved channels, and the GMRS radio not being capable of transmitting on the FRS channels 8-14, as long as all the other technical specifications are met, there shouldn't be any certification problems. The radios would be similar to a dual-band radio, except that it would have a transceiver on one side, and a seperate scanning receiver on the other.
I personally would use the scanner side of the radio to monitor public safety interoperability, business/industrial low power/itinerant, Marine VHF, railroad, as well as select VHF Air channels in the MURS radio's scanner section; and public safety interoperability, business/industrial low power/itinerants, and whatever else I decide on in the GMRS radio's scanner section. This would free up memory space, and increase the scanning speed, by not having to devote space to them, in my primary scanner(s).
What do you think?
John
Peoria, AZ
:: Uniden Australia ::
That's a remote head mobile UHF CB transceiver with a seperate 60 channel 400-512 MHz scanning receiver, in one case, that Uniden manufactured for the Australian market.
I would like to see Uniden or Whistler (or almost anyone else) manufacture similar mobile, and portable, radios for the MURS and the GMRS for the USA market.
In addition to many of the features of the UH-015SX, a MURS radio would have, on the transceiver side:
5 channels
2 watts TPO
50 CTCSS with split tone and auto decode
104 DCS with split code(?) and auto decode
(I don't know if you can set seperate DCS codes for transmit/receive, or set it for transmit only, and receive in CSQ like you can with CTCSS in some radios.)
16-key DTMF keypad for SELCALL
BIIS-1200/MDC-1200
Optionally, incorporate both analog FM and a digital transmission mode (P25? DMR? NXDN? C4FM? D-STAR DV? Something else?) according to whichever manufacturer decides to make this wishlist a reality, whatever is capable of coexisting with analog FM, and whichever modes the FCC rules & regulations allow for the MURS.
On the scanning receiver side, it would:
Receive 150.800-174 MHz minimum, up to 108-174 MHz maximum.
Have all of the capabilities of a BCD-996XT or GRE PSR-600 (or equivalent), at a minimum, within the above frequency range.
A GMRS version would have, on the transceiver side:
All 22 channels
Channels 8-14 *would be RECEIVE ONLY* by firmware
Channels 15-22 would have one button talk-around/repeater capability
5-10-20-40 watt TPO on channels 15-22
A menu setting for channels 1-7 so that you can set and forget the TPO according to the gain of your antenna, minus the loss of your coax, so as to abide by the FCC's 5 watt ERP limit on these channels
50 CTCSS with split tone and auto decode
104 DCS with split code and auto decode (see note above in regards to split capability)
16-key DTMF keypad for SELCALL
BIIS-1200/MDC-1200 (If legal in the GMRS?)
On the scanning receiver side, it would:
Receive 450-512 MHz minimum, up 380-512 MHz maximum
Have all of the capabilities of the BCD-996XT or GRE PSR-600 (or equivalent), at a minimum, within the above frequency range
Handhelds would have all of the capabilities of a BCD-396XT or a GRE PSR-500 (or equivalent) at a minimum.
(Being a GRE PSR-500 owner myself, and not owning or having any experience with the Unidens, I'm leaning towards a GRE/Whistler style of scanner, personally.)
As I understand it, if a manufacturer limits a scanner to a limited range, it should reduce birdies, images, etc., versus having the 25-1300 MHz coverage of scanners today. They can achieve better performance out of a limited range receiver, than they can with a wide range receiver.
With the MURS radio not being capable of transmitting outside of the 5 approved channels, and the GMRS radio not being capable of transmitting on the FRS channels 8-14, as long as all the other technical specifications are met, there shouldn't be any certification problems. The radios would be similar to a dual-band radio, except that it would have a transceiver on one side, and a seperate scanning receiver on the other.
I personally would use the scanner side of the radio to monitor public safety interoperability, business/industrial low power/itinerant, Marine VHF, railroad, as well as select VHF Air channels in the MURS radio's scanner section; and public safety interoperability, business/industrial low power/itinerants, and whatever else I decide on in the GMRS radio's scanner section. This would free up memory space, and increase the scanning speed, by not having to devote space to them, in my primary scanner(s).
What do you think?
John
Peoria, AZ
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