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this provides some degree of isolation, will it be enough is the question. you can also separate the TX and RX antennas, for example using a single mast with the (vertically oriented dipole) TX antenna about 40-50 feet directly above the RX antenna. If you can increase the TX/RX offset (which for SHTF could be fine) you can get away with less complex filtering. and they don't want to be moved around much or you'll end up detuning them. there is no easy/good way to "fold up" a mechanical cavity filter, so what you end up with is a duplexer the size of a set of 4 typical gas welding tanks. Yup - the problem in the amateur 2m band is that the "standard" repeater TX/RX frequencies are all but on top of each other, and getting sufficient isolation (specifically, selectivity/stop band attenuation) when they are that close requires a hella steep filtering setup - in this case, mechanical cavity filters.
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Once again, not the best, but I have all the stuff I need to make this way work so it would be what I would use if I had to. Set your HT/mobile to RX 146.970 and TX 146.370 and talk away.
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Your only limit is the TX range of the 70cm signal. Place antennas far enough apart to avoid interfering with each other on 2m. Radio "B" is set to RX on the 70cm freq radio "A" TX's on (Ex. Radio "A" is set to RX on 2m input freq (Ex. This setup requires 2 radios that can crossband repeat, 2 power sources/batteries, and 2 antenna systems. One method I have tried is to have two radios Xband repeat separated by a good distance so they don't interfere with each other on 2m. On top of that, you still need the repeater so it's not the best setup out there for remote operations. They are about six inches in diameter and around 2 feet long very light, but bulky.
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This kenowod will be shortened by buildings or foliage in the way.I have a few VHF cavities that came from a local agency when they switched to 800Mhz.
#HOW TO USE CTCSS TONE KENWOOD TK 880 MANUAL#
To print the manual completely, please, download it. You can, however, manually deactivate the Squelch in any situation. You can also switch the Beep function OFF. Use high quality alkaline batteries to enjoy longer periods of battery life. This manual will be available for download after You place order for it. Link to this manual is usually sent within 1 – 2 weeks max. Turn the VOL control clockwise or counterclockwise to increase or decrease the volume. We’ll send You download instructions on Your email. It contains circuit diagrams schemas etc. We’ll send You download instructions on email. Please make sure that You can wait for the manual before ordering it. In our catalog We have following types of manuals: We recommend that you identify the items listed below before discarding the packing material. To make or answer a call, press and hold the PTT switch, then speak into the microphone manuwl your normal speaking voice.
#HOW TO USE CTCSS TONE KENWOOD TK 880 MANUAL PDF#
JIS G0404 PDF KENWOOD UBZ-LH68 INSTRUCTION MANUAL Pdf Download. Lots of good info in this one! You may manhal this when received signals are too weak to recognize or when you want to adjust the volume while listening to background noise. Recieved the manual within 6 hours after order comfirmation and payment. The distance ienwood be further shortened by dense foliage or mountains. See below for delivery information Availability note This item will be sold as ‘special order’. Holding down the PTT switch for more than 10 minutes causes the transceiver to generate a beep and stop transmitting. with CTCSS when your party uses a KENWOOD UBZ-LH68 transceiver in this mode. charging method, see the instruction manual that comes with the charger. UBZ-LH68 Transceiver pdf manual download. View and Download Kenwood UBZ-LH68 instruction manual online.