Re: [Repeater-Builder] Need source for UHF power module
I have a number of M57729L which are 400-420. The H is 450-470. These hybrid parts lose gain pretty rapidly outside the spec'd range but will make power over quite a wide range. The L will make spec up to 430 or so an have full power capability at reduced gain to almost 440. Probably not an answer for you. On 5/24/2010 7:45 PM, Yahoo wrote: > > > The item is still available from pacparts.com. I would recommend > checking the price from an Icom dealer. Part # SC-1056 > > > > Jeff > > > > *From:* Repeater-Builder@yahoogroups.com > [mailto:repeater-buil...@yahoogroups.com] *On Behalf Of *x.tait.tech > get real > *Sent:* Saturday, May 22, 2010 2:34 PM > *To:* Repeater-Builder@yahoogroups.com > *Subject:* Re: [Repeater-Builder] Need source for UHF power module > > > > > > there is a company here in New Zealand that used to or maybe still > does deal with Kenwood products > > http://www.pacificaerials.co.nz/ <http://www.pacificaerials.co.nz/> > > I know of no one else, other than Kenwood themselves > > Marcus > > > On Sat, May 22, 2010 at 5:02 PM, byronhham <mailto:hellewe...@utahwisp.com>> wrote: > > > > Hi > Does anyone know of a good source for a M57729h-01-p. > > It is the UHF power module in the Kenwood TKR-820. > > It is rated at 30 Watts 12 volts 440 to 470 MHz. > > I found that they do not like to be operated into the wrong side of a > duplexer. For even a short time. > > Is it used in any other transceivers that might be purchased for the > module? > > Thanks > Byron NJ7J > > > > > > -- mailto:o...@ozindfw.net Oz POB 93167 Southlake, TX 76092 (Near DFW Airport)
RE: [Repeater-Builder] Need source for UHF power module
The item is still available from pacparts.com. I would recommend checking the price from an Icom dealer. Part # SC-1056 Jeff From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of x.tait.tech get real Sent: Saturday, May 22, 2010 2:34 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Need source for UHF power module there is a company here in New Zealand that used to or maybe still does deal with Kenwood products http://www.pacificaerials.co.nz/ I know of no one else, other than Kenwood themselves Marcus On Sat, May 22, 2010 at 5:02 PM, byronhham wrote: Hi Does anyone know of a good source for a M57729h-01-p. It is the UHF power module in the Kenwood TKR-820. It is rated at 30 Watts 12 volts 440 to 470 MHz. I found that they do not like to be operated into the wrong side of a duplexer. For even a short time. Is it used in any other transceivers that might be purchased for the module? Thanks Byron NJ7J
RE: [Repeater-Builder] Need source for UHF power module
Be careful about getting the proper replacement part. The basic M57729,
without a suffix letter, is for 430-450 MHz. The M57729L is for 400-420
MHz, and the M57729H is for 450-470 MHz. There are other versions, with
different suffixes, for other UHF bands.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of David Struebel
Sent: Sunday, May 23, 2010 12:01 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Need source for UHF power module
RF Parts in California lists the M57729 for $ 68 (US)
http://www.rfparts.com/module_m.html#m57704el
<http://www.rfparts.com/module_m.html#m57704el>
Dave WB2FTX
- Original Message -
From: P Grant <mailto:ei4hxperimen...@eircom.net>
To: Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder@yahoogroups.com>
Sent: Sunday, May 23, 2010 9:37 AM
Subject: Re: [Repeater-Builder] Need source for UHF power module
Hello Byron,
The M57729 is a standard Motorola PA Slab.
Yours is the Kenwood Part number, M57729h-01-P.
The standard Motorola module will be available off the shelf,,,
BUT,,, it will be priced @ $230.oo US.
Any equivalent Motorola, or spurious part [30W UHF] will do the
job, much cheaper,,, you can cross reference on any good RF Components web
site in your area. You may source one from a scrap [ out of spec ] mobile
PMR radio for $10.oo, if you know where to look ! 25 watt would be much
cheaper and easier to find.
Hope this is of some help. 73 from Ireland.
Peter EI4HX ei4hxperimen...@eircom.net
<mailto:ei4hxperimen...@eircom.net>
- Original Message -
From: x.tait.tech get real <mailto:x.tait.t...@gmail.com>
To: Repeater-Builder@yahoogroups.com
<mailto:Repeater-Builder@yahoogroups.com>
Sent: Saturday, May 22, 2010 10:34 PM
Subject: Re: [Repeater-Builder] Need source for UHF power
module
there is a company here in New Zealand that used to or maybe
still does deal with Kenwood products
http://www.pacificaerials.co.nz/
<http://www.pacificaerials.co.nz/>
I know of no one else, other than Kenwood themselves
Marcus
On Sat, May 22, 2010 at 5:02 PM, byronhham
mailto:hellewe...@utahwisp.com> > wrote:
Hi
Does anyone know of a good source for a
M57729h-01-p.
It is the UHF power module in the Kenwood TKR-820.
It is rated at 30 Watts 12 volts 440 to 470 MHz.
I found that they do not like to be operated into
the wrong side of a duplexer. For even a short time.
Is it used in any other transceivers that might be
purchased for the module?
Thanks
Byron NJ7J
No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.819 / Virus Database: 271.1.1/2891 - Release Date:
05/23/10 02:26:00
Re: [Repeater-Builder] Need source for UHF power module
RF Parts in California lists the M57729 for $ 68 (US) http://www.rfparts.com/module_m.html#m57704el Dave WB2FTX - Original Message - From: P Grant To: Repeater-Builder@yahoogroups.com Sent: Sunday, May 23, 2010 9:37 AM Subject: Re: [Repeater-Builder] Need source for UHF power module Hello Byron, The M57729 is a standard Motorola PA Slab. Yours is the Kenwood Part number, M57729h-01-P. The standard Motorola module will be available off the shelf,,, BUT,,, it will be priced @ $230.oo US. Any equivalent Motorola, or spurious part [30W UHF] will do the job, much cheaper,,, you can cross reference on any good RF Components web site in your area. You may source one from a scrap [ out of spec ] mobile PMR radio for $10.oo, if you know where to look ! 25 watt would be much cheaper and easier to find. Hope this is of some help. 73 from Ireland. Peter EI4HX ei4hxperimen...@eircom.net - Original Message - From: x.tait.tech get real To: Repeater-Builder@yahoogroups.com Sent: Saturday, May 22, 2010 10:34 PM Subject: Re: [Repeater-Builder] Need source for UHF power module there is a company here in New Zealand that used to or maybe still does deal with Kenwood products http://www.pacificaerials.co.nz/ I know of no one else, other than Kenwood themselves Marcus On Sat, May 22, 2010 at 5:02 PM, byronhham wrote: Hi Does anyone know of a good source for a M57729h-01-p. It is the UHF power module in the Kenwood TKR-820. It is rated at 30 Watts 12 volts 440 to 470 MHz. I found that they do not like to be operated into the wrong side of a duplexer. For even a short time. Is it used in any other transceivers that might be purchased for the module? Thanks Byron NJ7J -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.819 / Virus Database: 271.1.1/2891 - Release Date: 05/23/10 02:26:00
Re: [Repeater-Builder] Need source for UHF power module
Hello Byron, The M57729 is a standard Motorola PA Slab. Yours is the Kenwood Part number, M57729h-01-P. The standard Motorola module will be available off the shelf,,, BUT,,, it will be priced @ $230.oo US. Any equivalent Motorola, or spurious part [30W UHF] will do the job, much cheaper,,, you can cross reference on any good RF Components web site in your area. You may source one from a scrap [ out of spec ] mobile PMR radio for $10.oo, if you know where to look ! 25 watt would be much cheaper and easier to find. Hope this is of some help. 73 from Ireland. Peter EI4HX ei4hxperimen...@eircom.net - Original Message - From: x.tait.tech get real To: Repeater-Builder@yahoogroups.com Sent: Saturday, May 22, 2010 10:34 PM Subject: Re: [Repeater-Builder] Need source for UHF power module there is a company here in New Zealand that used to or maybe still does deal with Kenwood products http://www.pacificaerials.co.nz/ I know of no one else, other than Kenwood themselves Marcus On Sat, May 22, 2010 at 5:02 PM, byronhham wrote: Hi Does anyone know of a good source for a M57729h-01-p. It is the UHF power module in the Kenwood TKR-820. It is rated at 30 Watts 12 volts 440 to 470 MHz. I found that they do not like to be operated into the wrong side of a duplexer. For even a short time. Is it used in any other transceivers that might be purchased for the module? Thanks Byron NJ7J
Re: [Repeater-Builder] Need source for UHF power module
Pacific have been out of Kenwood for ages, Best bet is to contact Kenwood directly, or try RF Parts.com in the states. Before you do that, check if the power module has in fact "Spat the dummy" as many of the TKR-720 and 820's suffered from dry joints in the PA stage. So firstly I would suck up, clean the contacts and reflow with high silver content solder, especially around the inductors. Check for high (Or normal) current draw when running the repeater on 12 volts and if there is little or no RF out the transmit socket, suspect dry joints. I've re-soldered more TKR final stages than actually replacing the Hybrid PA module. Hope this helps? Gareth Bennett RadioSystems P.O. Box 5202 Dunedin 9024 New Zealand - Original Message - From: x.tait.tech get real To: Repeater-Builder@yahoogroups.com Sent: Sunday, May 23, 2010 9:34 AM Subject: Re: [Repeater-Builder] Need source for UHF power module there is a company here in New Zealand that used to or maybe still does deal with Kenwood products http://www.pacificaerials.co.nz/ I know of no one else, other than Kenwood themselves Marcus On Sat, May 22, 2010 at 5:02 PM, byronhham wrote: Hi Does anyone know of a good source for a M57729h-01-p. It is the UHF power module in the Kenwood TKR-820. It is rated at 30 Watts 12 volts 440 to 470 MHz. I found that they do not like to be operated into the wrong side of a duplexer. For even a short time. Is it used in any other transceivers that might be purchased for the module? Thanks Byron NJ7J
Re: [Repeater-Builder] Need source for UHF power module
there is a company here in New Zealand that used to or maybe still does deal with Kenwood products http://www.pacificaerials.co.nz/ I know of no one else, other than Kenwood themselves Marcus On Sat, May 22, 2010 at 5:02 PM, byronhham wrote: > > > Hi > Does anyone know of a good source for a M57729h-01-p. > > It is the UHF power module in the Kenwood TKR-820. > > It is rated at 30 Watts 12 volts 440 to 470 MHz. > > I found that they do not like to be operated into the wrong side of a > duplexer. For even a short time. > > Is it used in any other transceivers that might be purchased for the > module? > > Thanks > Byron NJ7J > > >
Re: [Repeater-Builder] Need source for UHF power module
Check with RF Parts (www.rfparts.com). Years ago I purchased a power module for an IC-2710H Icom and it was about half the price than Icom. From: byronhham To: Repeater-Builder@yahoogroups.com Sent: Sat, May 22, 2010 12:02:08 AM Subject: [Repeater-Builder] Need source for UHF power module Hi Does anyone know of a good source for a M57729h-01-p. It is the UHF power module in the Kenwood TKR-820. It is rated at 30 Watts 12 volts 440 to 470 MHz. I found that they do not like to be operated into the wrong side of a duplexer. For even a short time. Is it used in any other transceivers that might be purchased for the module? Thanks Byron NJ7J
