[Repeater-Builder] Portable repeater and RSSI issues

Repeater Power output being a function of RSSI...Have another think on this one ... What about all the other mobiles or handhelds that could be in fringe or poor coverage areas, what will happen to their repeater reception if suddenly the repeater power is suddenly dropped at the expense of a

Re: [Repeater-Builder] Re: Portable repeater and RSSI issues

Hi Allen, Yes, It's hard pleasing everyone :-) Yes the repeater is based on Vertex product. Easy for us to do as we distribute for New Zealand and have the Engineering support from Japan. Interestingly enough it was the internal battery that dictated the specifications of our PRU, which

Re: [Repeater-Builder] Portable repeater

Packaging, ease of use and battery life are way up there on the list. Without addressing these issues, It's just another portable repeater Have a look at this. This is what we made for Emergency services http://www.signals.net.nz/special_offers/ Either VHF or UHF. Regards Gareth Bennett

Re: [Repeater-Builder] HT750 vs CP200

Have you considered the Vertex Standard VX-821?

Re: [Repeater-Builder] Dual Receive Antennas

Put the yagi at the critical station location :-) Regards Gareth Bennett

Re: [Repeater-Builder] Circuit diagram for interfacing 2 maxon pm150 repeaters together

Hi Ian, How about building a 3 way 600Z resistive bridge with 7x 220R resistors, feeding each TX into two of the three ports and utilising the last port for either RX1 or RX2, which is switched into the remaining port via the active RX COS control driving into a DPST relay to select the

[Repeater-Builder] O.T Faulty Anritsu Sitemaster Advice.

Hello Group We have an Anritsu S331B Sitemaster that has possibly had excessive RF, which has caused the dreaded Integrator failure according to the power on self tests. My question to the collective wisdom of the group...Does anybody recommend an honest service/repair facility that can

Re: [Repeater-Builder] Six-Meter Isolator Circulator

Hi Dan, Have a look at this link, exactly what you are after?? http://www.trademe.co.nz/Electronics-photography/Radio-equipment/Commercial/auction-223252310.htm Regards Gareth Bennett (Technical Services) Signals NZ Ltd 8 Manor Place P.O. Box 1439 Dunedin 9015 New Zealand Phone : 03 477-4342

[Repeater-Builder] (OT) APCO P25 horror stories anyone?

Hello Group, As P25 is being rolled out worldwide, I have been hearing many stories regarding P25 shortcomings...Such as Vocoder problems in high noise situations, Jitter and Multipath issues from users that have converted from their legacy Analog systems, etc . The repeater issues (If any)

Re: [Repeater-Builder] Asntenna Painting

We just use common household bleach mixture to clean antennas that have been up there for ages, works a treat! Regards Gareth Bennett (Technical Services) Signals NZ Ltd 8 Manor Place P.O. Box 1439 Dunedin 9015 New Zealand Phone : 03 425-0895(64 3 425-0895) Fax : 03 474-5251(64 3

[Repeater-Builder] Zetron controller info needed

Happy new year to all on the group! Recently my organisation inherited a large amount of model 49 LTR controllers and the associated Model 2540 FASTnet Switch. I am hoping that some kind individual has a copy of any relevant technical information/manuals or software that they could supply me as

Re: [Repeater-Builder] Tait tb7100 verses tb8100

The TB7100 is only a toy compared to the TB8100 series. Actually the '7100 series is made utilising Tait Mobile boards that dont quite make specification. Regards Gareth Bennett (Technical Services) Signals NZ Ltd 8 Manor Place P.O. Box 1439 Dunedin 9015 New Zealand Phone : 03 425-0895(64 3

[Repeater-Builder] EM to Ethernet interfaces

Hello Group, We are looking for simple EM to Ethernet Interfaces. Single or Dual channels would be great as we have an application where we would prefer not to install a complete MUX assembly where something that would provide us with 4 Wire Type1 EM to Ethernet would be ideal. I'm

[Repeater-Builder] EMR Corp UHF cavity filters

Hello Group, Does anybody have a UHF EMR Corp 7 cavity filter (6567 Series) that I could ask some dimensioned from please? Such as coupling loop dimensions etc? I have a heap of 850 MHz 3/4 Wavelength cavities that are surplus and am keen to investigate modifying these to 440 MHz 1/4

[Repeater-Builder] Zetron Model 49 Trunking controllers for sale

We have some surplus Zetron Model 49 Trunking controllers for sale, These are in As New condition as were set up and then put into storage as service spares that were never utilised. Model: 901-9147 Quantity: 7 Looking at $USD 600 each + Shipping Regards Gareth Bennett (Technical

[Repeater-Builder] EFJ Viking Base Stations F.S

Greeting group, We have the following E.F Johnson Viking Base Stations for sale: 10x 800 MHz 75 Watt (Immaculate condition) Model:242-2008-X32 Asking $USD $1,800 each Regards Gareth Bennett (Technical Services) Signals NZ Ltd 8 Manor Place P.O. Box 1439 Dunedin 9015 New Zealand Phone :

Re: [Repeater-Builder] Re: ROIP interfaces

looking for them to have? BTW, what is a 'trigger base'? A control station? [I love when IT guys try to do radio] Walter KD7BJJ --- In Repeater-Builder@yahoogroups.com, Gareth Bennett \(Ihug\) [EMAIL PROTECTED] wrote: Hello Group, I am looking for options for ROIP

[Repeater-Builder] ROIP interfaces

Hello Group, I am looking for options for ROIP interfaces that can be interfaced to base stations. I am aware of the major brands such as Omnitronics, Telex/Vega, CSI and Raytheon/JPS. Are there any other vendors out there that do a decent stand alone ROIP interface unit at a reasonable