User Tools

Site Tools


howto:xband

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
Next revisionBoth sides next revision
howto:xband [2021/07/08 13:07] – [KT-8900] va7fihowto:xband [2021/07/09 20:53] va7fi
Line 49: Line 49:
 The following is a variation I use when I can hear the repeater with my handheld, but can't transmit to it because of the handheld's low power.  In this configuration, the crossband repeater only transmit when **I** am transmitting, not when the others are transmitting, which is much much easier on the radio. The following is a variation I use when I can hear the repeater with my handheld, but can't transmit to it because of the handheld's low power.  In this configuration, the crossband repeater only transmit when **I** am transmitting, not when the others are transmitting, which is much much easier on the radio.
  
-{{ :howto:xband2b.png?800 |}}+{{ howto:xband:xband2b.png?800 |}}
 The crossband repeater is set up with the input frequency of the repeater without the offset.  The tone is set to the repeater tone, but the tone squelch is set to something else (I'll explain in a minute). So: The crossband repeater is set up with the input frequency of the repeater without the offset.  The tone is set to the repeater tone, but the tone squelch is set to something else (I'll explain in a minute). So:
   * Unit A transmits on 446.100 and receives the repeater's output on 147.**2**20.   * Unit A transmits on 446.100 and receives the repeater's output on 147.**2**20.
Line 68: Line 68:
 A crossband repeater can be used to link a VHF and UHF repeater simply by dialing both repeater frequencies (with offset and tones) on the crossband repeater. A crossband repeater can be used to link a VHF and UHF repeater simply by dialing both repeater frequencies (with offset and tones) on the crossband repeater.
  
-{{ :howto:xband3.png |}}+{{ howto:xband:xband3.png |}}
  
 <WRAP center round important 90%> <WRAP center round important 90%>
Line 81: Line 81:
 To reach Unit A, Unit C would need to "impersonate" the VHF repeater and be setup as the "opposite" of Unit B. To reach Unit A, Unit C would need to "impersonate" the VHF repeater and be setup as the "opposite" of Unit B.
  
-{{ :howto:xband3b.png |}}+{{ howto:xband:xband3b.png |}}
  
  
 ===== KT-8900 ===== ===== KT-8900 =====
 It's pretty easy to setup a cross band repeater with two KT-8900 radios. It's pretty easy to setup a cross band repeater with two KT-8900 radios.
-{{  :howto:kt8900corssband.jpeg  }} +{{  howto:xband:kt8900corssband.jpeg  }} 
-  * The first step is to make an ethernet patch cord with this {{:howto:qytxbandcable.pdf |pin out}} +  * The first step is to make an ethernet patch cord with this {{howto:xband:qytxbandcable.pdf |pin out}}
-  * The second step is to set the menu option 43: ''REP-M'' to something like ''CTDCS' This will send the output of one radio to the other radio if the tone is detected. +<WRAP indent> 
- +|1 (Data Input) |  <->  | empty | 
- +|2 (RPT CTRL)    <->  | 5 (PTT) | 
 +|3 (MIC)        |  <->  | 8 (AF OUT) | 
 +|4 (MIC GND)    |  <->  | 4 (MIC GND) | 
 +|5 (PTT)        |  <->  | 2 (RPT CTRL) | 
 +|6 (GND)        |  <->  | 6 (GND) | 
 +|7 (+8VDC OUT)  |  <->  | empty | 
 +|8 (AF OUT)      <->  | 3 (MIC) | 
 +</WRAP> 
 +  * The second step is to set the menu option 43: ''REP-M'' to something like ''CTDCS'' This will send the output of one radio to the other radio if the tone is detected.{{howto:xband:kt8900settings.png}} 
 +  * For my setup: 
 +    * I set the UHF radio to low power because it's ether going to be used on a UHF simplex frequency when I'm around the house, or by VE7SCK, which is also really close.  It's also the radio that'll be transmitting the most since it's listening to VE7RXZ (or whichever other repeater I want to crossband repeat). 
 +    * I set the VHF radio to high power because this radio would need to reach a repeater further away.  It will also only transmit when I'm speaking on the UHF simplex frequency or when someone is using VE7SCK, which is less often. 
 +  * Once both radios are on their correct frequencies (one must be on UHF and the other on VHF), connect the cable to link them both.
howto/xband.txt · Last modified: 2021/10/07 19:55 by va7fi